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Thomas Mueller

2013-Aug-11 17:31 UTC

Change in loader or kernel: won't boot with kfreebsd in grub2

Has there been a change in loader or kernel format recently?

Through FreeBSD 9.1 postrelease, I was able to boot with grub2 (Super Grub Disk)
on the System Rescue CD (sysresccd.org) by

set root=(hd0,gpt3)
insmod ufs2
kfreebsd /boot/loader
boot

but that no longer works.

That was the method suggested in $PORTSDIR/sysutils/grub2/pkg-message

I just source-upgraded from 9.2-BETA2 to what is now called 9.2-PRERELEASE

uname -a shows


FreeBSD amelia2 9.2-PRERELEASE FreeBSD 9.2-PRERELEASE #17 r254196: Sun Aug 11
00:36:49 UTC 2013     root at amelia2:/usr/obj/usr/src/sys/SANDY  amd64

Fortunately, I also installed to a USB stick, GPT-partitioned with the first
partition being freebsd-boot, so I boot with that, and to get the hard-drive
installation, escape to loader prompt and type

set boot_askname

and then ufs:/dev/ada0p3 

at the mountroot> prompt.

I want to use the hard drive for more than one OS: FreeBSD and Linux.

For forensic, testing purposes, I tested and was able to boot the old 9.0-BETA1
installation by

set root=(hd0,gpt9)
insmod ufs2
kfreebsd /boot/loader
boot

which is why I think there was possibly a change in loader or kernel format.

I was worried that my Western Digital Caviar Green 3 TB hard drive was starting
to go bad, but now it looks like maybe a change in FreeBSD loader or kernel
format.


Tom

Juergen Lock

2013-Aug-11 23:10 UTC

head link

Change in loader or kernel: won't boot with kfreebsd in grub2

On Sun, Aug 11, 2013 at 05:31:10PM +0000, Thomas Mueller
wrote:> Has there been a change in loader or kernel format recently?
> 
> Through FreeBSD 9.1 postrelease, I was able to boot with grub2 (Super Grub
Disk) on the System Rescue CD (sysresccd.org) by
> 
> set root=(hd0,gpt3)
> insmod ufs2
> kfreebsd /boot/loader
> boot
> 
> but that no longer works.
> 
> That was the method suggested in $PORTSDIR/sysutils/grub2/pkg-message
> 
> I just source-upgraded from 9.2-BETA2 to what is now called 9.2-PRERELEASE
> 
> uname -a shows
> 
> 
> FreeBSD amelia2 9.2-PRERELEASE FreeBSD 9.2-PRERELEASE #17 r254196: Sun Aug
11 00:36:49 UTC 2013     root at amelia2:/usr/obj/usr/src/sys/SANDY  amd64
> 
> Fortunately, I also installed to a USB stick, GPT-partitioned with the
first partition being freebsd-boot, so I boot with that, and to get the
hard-drive installation, escape to loader prompt and type
> 
> set boot_askname
> 
> and then ufs:/dev/ada0p3 
> 
> at the mountroot> prompt.
> 
> I want to use the hard drive for more than one OS: FreeBSD and Linux.
> 
> For forensic, testing purposes, I tested and was able to boot the old
9.0-BETA1 installation by
> 
> set root=(hd0,gpt9)
> insmod ufs2
> kfreebsd /boot/loader
> boot
> 
> which is why I think there was possibly a change in loader or kernel
format.
> 
> I was worried that my Western Digital Caviar Green 3 TB hard drive was
starting to go bad, but now it looks like maybe a change in FreeBSD loader or
kernel format.
> Hmm I just tested super_grub2_disk_hybrid_2.00s1-beta5.iso from

	http://www.supergrubdisk.org/category/download/supergrub2diskdownload/

if it can boot FreeBSD-9.2-RC1-amd64-memstick.img in qemu and I
had to fix "kfreebsd" spelled as "freebsd" and
"kfreebsd_loadenv"
spelled as "frebsd_loadenv", replace /boot/kernel/kernel with
/boot/loader, and I in the loader I then had to set currdev=disk1a
(shown by lsdev) and load /boot/kernel/kernel.  qemu was started
like this:

	qemu-system-x86_64 -cdrom super_grub2_disk_hybrid_2.00s1-beta5.iso -hda
FreeBSD-9.2-RC1-amd64-memstick.img -m 512 -boot d -monitor stdio

 Letting super_grub2_disk_hybrid_2.00s1-beta5.iso boot the kernel
directly via kfreebsd /boot/kernel/kernel fails tho because of a this
bug in the vanilla grub 2.00 code:

	http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=699002

 (The fix for that bug now is in our sysutils/grub2 port as well as
in debian's grub 2.00 but apparently not yet in the super grub disk
isos.)

 So maybe your problem is that loader needs currdev set at least
in this case and in your old 9.0 installation it didn't?

 HTH, :)
	Juergen

Thomas Mueller

2013-Aug-12 15:39 UTC

head link

Change in loader or kernel: won't boot with kfreebsd in grub2

> Hmm I just tested super_grub2_disk_hybrid_2.00s1-beta5.iso from
>        
http://www.supergrubdisk.org/category/download/supergrub2diskdownload/
> if it can boot FreeBSD-9.2-RC1-amd64-memstick.img in qemu and I
> had to fix "kfreebsd" spelled as "freebsd" and
"kfreebsd_loadenv"
> spelled as "frebsd_loadenv", replace /boot/kernel/kernel with
> /boot/loader, and I in the loader I then had to set currdev=disk1a
> (shown by lsdev) and load /boot/kernel/kernel.  qemu was started
> like this:
>         qemu-system-x86_64 -cdrom super_grub2_disk_hybrid_2.00s1-beta5.iso
-hda FreeBSD-9.2-RC1-amd64-memstick.img -m 512 -boot d -monitor stdio
>  Letting super_grub2_disk_hybrid_2.00s1-beta5.iso boot the kernel
> directly via kfreebsd /boot/kernel/kernel fails tho because of a this
> bug in the vanilla grub 2.00 code:
>         http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=699002
>  (The fix for that bug now is in our sysutils/grub2 port as well as
> in debian's grub 2.00 but apparently not yet in the super grub disk
> isos.)
>  So maybe your problem is that loader needs currdev set at least
> in this case and in your old 9.0 installation it didn't?
 HTH, :)>         Juergen
I still wonder why Super Grub Disk kfreebsd worked until recently.

I figure something must have changed in FreeBSD loader or kernel structure since
the Super Grub Disk didn't change in that time.

For currdev, apparently the big hard drive is just recognized as one big drive
with no reference to partitions (lsdev).

I could try building grub2 from ports on both the hard-drive installation and
the USB-stick amd64 installation, see what possibilities are then available.

FreeBSD gpart can create a boot partition, but then the question is how to boot
that when there is more than one OS partition.

I can't simply put the FreeBSD boot partition at the start of the hard drive
as I did with the USB sticks.

I had a FreeDOS installation with syslinux on a USB stick that went bad (the USB
stick hardware).  That would permit me to have various boot images including
grub4dos and Super Grub Disk to boot with syslinux without booting into FreeDOS.
I'd re-create that, but the FreeDOS installer has proven tricky.


Tom

Thomas Mueller

2013-Aug-14 01:41 UTC

head link

Change in loader or kernel: won't boot with kfreebsd in grub2

> On 12.08.2013 19:39, Thomas Mueller wrote:
> > I still wonder why Super Grub Disk kfreebsd worked until recently.
> > I figure something must have changed in FreeBSD loader or kernel
> > structure since the Super Grub Disk didn't change in that time.
>
> > For currdev, apparently the big hard drive is just recognized as one
> > big drive with no reference to partitions (lsdev).
> Can you obtain the following information and send it to me?
> 1. lsdev output from the loader that works
> 2. gpart list from booted system
> 3. lsdev output from the loader that doesn't work        
--> WBR, Andrey V. Elsukov
I can provide the gpart list from booted system, but how do I capture lsdev
output without copying by pencil and paper?

I looked in "man loader" and "man loader.conf".

I subsequently added some partitions (6,7,12,13,14) for Linux purposes, but that
should have no current effect on booting FreeBSD.

gpart show ada0 shows


=>        34  5860533101  ada0  GPT  (2.7T)
          34      491520     1  efi  (240M)
      491554    16000000     2  linux-data  (7.6G)
    16491554           6        - free -  (3.0k)
    16491560   295768568     3  freebsd-ufs  (141G)
   312260128           2        - free -  (1.0k)
   312260130         128     8  freebsd-boot  (64k)
   312260258   209715200     9  freebsd-ufs  (100G)
   521975458   356515840    11  freebsd-ufs  (170G)
   878491298           6        - free -  (3.0k)
   878491304    41943040     4  netbsd-ffs  (20G)
   920434344     8388608     5  netbsd-swap  (4.0G)
   928822952    41943040     6  !0fc63daf-8483-4772-8e79-3d69d8477de4  (20G)
   970765992    16777216     7  linux-swap  (8.0G)
   987543208    41943040    12  !0fc63daf-8483-4772-8e79-3d69d8477de4  (20G)
  1029486248   209715200    13  !0fc63daf-8483-4772-8e79-3d69d8477de4  (100G)
  1239201448   419430400    14  !0fc63daf-8483-4772-8e79-3d69d8477de4  (200G)
  1658631848  4192206714        - free -  (2T)
  5850838562     8388608    10  freebsd-swap  (4.0G)
  5859227170     1305965        - free -  (637M)


gpart show -l ada0 shows


=>        34  5860533101  ada0  GPT  (2.7T)
          34      491520     1  WDGreen001  (240M)
      491554    16000000     2  WDGreen002  (7.6G)
    16491554           6        - free -  (3.0k)
    16491560   295768568     3  WDGreen003  (141G)
   312260128           2        - free -  (1.0k)
   312260130         128     8  WDGreen008  (64k)
   312260258   209715200     9  WDGreen009  (100G)
   521975458   356515840    11  WDGreen011  (170G)
   878491298           6        - free -  (3.0k)
   878491304    41943040     4  WDGreen004  (20G)
   920434344     8388608     5  WDGreen005  (4.0G)
   928822952    41943040     6  WDGreen006  (20G)
   970765992    16777216     7  WDGreen007  (8.0G)
   987543208    41943040    12  WDGreen012  (20G)
  1029486248   209715200    13  WDGreen013  (100G)
  1239201448   419430400    14  WDGreen014  (200G)
  1658631848  4192206714        - free -  (2T)
  5850838562     8388608    10  WDGreen010  (4.0G)
  5859227170     1305965        - free -  (637M)


For the USB stick, gpart show da1 shows


=>      34  15240509  da1  GPT  (7.3G)
        34       128    1  freebsd-boot  (64k)
       162  13200000    2  freebsd-ufs  (6.3G)
  13200162   2040380    3  freebsd-swap  (996M)
  15240542         1       - free -  (512B)


or with labels, gpart show -l da1 shows


=>      34  15240509  da1  GPT  (7.3G)
        34       128    1  usb64boot  (64k)
       162  13200000    2  usb64root  (6.3G)
  13200162   2040380    3  usb64swap  (996M)
  15240542         1       - free -  (512B)


Tom

Thomas Mueller

2013-Aug-14 03:22 UTC

head link

Change in loader or kernel: won't boot with kfreebsd in grub2

> > I can provide the gpart list from booted system, but how do I capture
> > lsdev output without copying by pencil and paper?
        > You can just make a photo.
        > > I looked in "man loader" and "man loader.conf".
>
> > I subsequently added some partitions (6,7,12,13,14) for Linux
> > purposes, but that should have no current effect on booting FreeBSD.
        > An output of `gpart show` contains less information that `gpart list`,
> it is useless for me :)

--> WBR, Andrey V. Elsukov
How do I make a photo when I don't have a digital camera?  

If I had a digital camera, how would I convert the picture to text?

I looked at "man gpart" and didn't see "list" in the
list of commands: a little deficiency in the man page.


Geom name: da0
modified: false
state: OK
fwheads: 255
fwsectors: 63
last: 732558330
first: 6
entries: 128
scheme: GPT
Providers:
1. Name: da0p1
   Mediasize: 209715200 (200M)
   Sectorsize: 4096
   Stripesize: 0
   Stripeoffset: 1048576
   Mode: r0w0e0
   rawuuid: de838bc6-0456-46f8-a277-3a627846685f
   rawtype: c12a7328-f81f-11d2-ba4b-00a0c93ec93b
   label: MyBook1
   length: 209715200
   offset: 1048576
   type: efi
   index: 1
   end: 51455
   start: 256
2. Name: da0p2
   Mediasize: 8074035200 (7.5G)
   Sectorsize: 4096
   Stripesize: 0
   Stripeoffset: 210763776
   Mode: r0w0e0
   rawuuid: 1fb90c07-1939-4a80-9e03-c47470f4f555
   rawtype: ebd0a0a2-b9e5-4433-87c0-68b6b72699c7
   label: MyBook2
   length: 8074035200
   offset: 210763776
   type: linux-data
   index: 2
   end: 2022655
   start: 51456
3. Name: da0p3
   Mediasize: 524288 (512k)
   Sectorsize: 4096
   Stripesize: 0
   Stripeoffset: 3989831680
   Mode: r0w0e0
   rawuuid: 497d10d1-e7ec-4b50-ab0d-77eb5216eae3
   rawtype: 83bd6b9d-7f41-11dc-be0b-001560b84f0f
   label: MyBook3
   length: 524288
   offset: 8284798976
   type: freebsd-boot
   index: 3
   end: 2022783
   start: 2022656
4. Name: da0p4
   Mediasize: 53687091200 (50G)
   Sectorsize: 4096
   Stripesize: 0
   Stripeoffset: 3990880256
   Mode: r0w0e0
   rawuuid: 1fd5faa9-09cb-40eb-9f9e-90cd2d041016
   rawtype: 516e7cb6-6ecf-11d6-8ff8-00022d09712b
   label: MyBook4
   length: 53687091200
   offset: 8285847552
   type: freebsd-ufs
   index: 4
   end: 15130111
   start: 2022912
5. Name: da0p5
   Mediasize: 4294967296 (4.0G)
   Sectorsize: 4096
   Stripesize: 0
   Stripeoffset: 1843396608
   Mode: r0w0e0
   rawuuid: 344e66cb-a1be-4562-be82-1350d93d2da2
   rawtype: 516e7cb5-6ecf-11d6-8ff8-00022d09712b
   label: MyBook5
   length: 4294967296
   offset: 61972938752
   type: freebsd-swap
   index: 5
   end: 16178687
   start: 15130112
6. Name: da0p6
   Mediasize: 214748364800 (200G)
   Sectorsize: 4096
   Stripesize: 0
   Stripeoffset: 1843396608
   Mode: r0w0e0
   rawuuid: 1e45c5ac-3623-47b1-bc66-98b8b972a0b0
   rawtype: 516e7cb6-6ecf-11d6-8ff8-00022d09712b
   label: MyBook6
   length: 214748364800
   offset: 66267906048
   type: freebsd-ufs
   index: 6
   end: 68607487
   start: 16178688
7. Name: da0p7
   Mediasize: 53687091200 (50G)
   Sectorsize: 4096
   Stripesize: 0
   Stripeoffset: 1843396608
   Mode: r0w0e0
   rawuuid: e39f40a7-415b-4bad-afac-f981378ccbf7
   rawtype: 516e7cb6-6ecf-11d6-8ff8-00022d09712b
   label: MyBook7
   length: 53687091200
   offset: 281016270848
   type: freebsd-ufs
   index: 7
   end: 81714687
   start: 68607488
Consumers:
1. Name: da0
   Mediasize: 3000558944256 (2.7T)
   Sectorsize: 4096
   Mode: r0w0e0

Geom name: da1
modified: false
state: OK
fwheads: 255
fwsectors: 63
last: 15240542
first: 34
entries: 128
scheme: GPT
Providers:
1. Name: da1p1
   Mediasize: 65536 (64k)
   Sectorsize: 512
   Stripesize: 0
   Stripeoffset: 17408
   Mode: r0w0e0
   rawuuid: 9fc8a879-75a4-11e1-8b1f-8c89a5131554
   rawtype: 83bd6b9d-7f41-11dc-be0b-001560b84f0f
   label: usb64boot
   length: 65536
   offset: 17408
   type: freebsd-boot
   index: 1
   end: 161
   start: 34
2. Name: da1p2
   Mediasize: 6758400000 (6.3G)
   Sectorsize: 512
   Stripesize: 0
   Stripeoffset: 82944
   Mode: r0w0e0
   rawuuid: c5043e60-75a6-11e1-8b1f-8c89a5131554
   rawtype: 516e7cb6-6ecf-11d6-8ff8-00022d09712b
   label: usb64root
   length: 6758400000
   offset: 82944
   type: freebsd-ufs
   index: 2
   end: 13200161
   start: 162
3. Name: da1p3
   Mediasize: 1044674560 (996M)
   Sectorsize: 512
   Stripesize: 0
   Stripeoffset: 2463515648
   Mode: r0w0e0
   rawuuid: e2540349-75a6-11e1-8b1f-8c89a5131554
   rawtype: 516e7cb5-6ecf-11d6-8ff8-00022d09712b
   label: usb64swap
   length: 1044674560
   offset: 6758482944
   type: freebsd-swap
   index: 3
   end: 15240541
   start: 13200162
Consumers:
1. Name: da1
   Mediasize: 7803174912 (7.3G)
   Sectorsize: 512
   Mode: r0w0e0

Geom name: ada0
modified: false
state: OK
fwheads: 16
fwsectors: 63
last: 5860533134
first: 34
entries: 128
scheme: GPT
Providers:
1. Name: ada0p1
   Mediasize: 251658240 (240M)
   Sectorsize: 512
   Stripesize: 4096
   Stripeoffset: 1024
   Mode: r0w0e0
   rawuuid: 44de8f9c-b9d2-11e0-b041-8c89a5131554
   rawtype: c12a7328-f81f-11d2-ba4b-00a0c93ec93b
   label: WDGreen001
   length: 251658240
   offset: 17408
   type: efi
   index: 1
   end: 491553
   start: 34
2. Name: ada0p2
   Mediasize: 8192000000 (7.6G)
   Sectorsize: 512
   Stripesize: 4096
   Stripeoffset: 1024
   Mode: r0w0e0
   rawuuid: 44de8f9f-b9d2-11e0-b041-8c89a5131554
   rawtype: ebd0a0a2-b9e5-4433-87c0-68b6b72699c7
   label: WDGreen002
   length: 8192000000
   offset: 251675648
   type: linux-data
   index: 2
   end: 16491553
   start: 491554
3. Name: ada0p3
   Mediasize: 151433506816 (141G)
   Sectorsize: 512
   Stripesize: 4096
   Stripeoffset: 0
   Mode: r1w1e1
   rawuuid: e414a2c7-dd11-11e0-a733-8c89a5131554
   rawtype: 516e7cb6-6ecf-11d6-8ff8-00022d09712b
   label: WDGreen003
   length: 151433506816
   offset: 8443678720
   type: freebsd-ufs
   index: 3
   end: 312260127
   start: 16491560
4. Name: ada0p4
   Mediasize: 21474836480 (20G)
   Sectorsize: 512
   Stripesize: 4096
   Stripeoffset: 0
   Mode: r0w0e0
   rawuuid: b96b2869-eeec-42b5-8e18-f49689c21db6
   rawtype: 49f48d5a-b10e-11dc-b99b-0019d1879648
   label: WDGreen004
   length: 21474836480
   offset: 449787547648
   type: netbsd-ffs
   index: 4
   end: 920434343
   start: 878491304
5. Name: ada0p5
   Mediasize: 4294967296 (4.0G)
   Sectorsize: 512
   Stripesize: 4096
   Stripeoffset: 0
   Mode: r0w0e0
   rawuuid: 5716d94c-50bc-4c95-84e9-8aaa607debdc
   rawtype: 49f48d32-b10e-11dc-b99b-0019d1879648
   label: WDGreen005
   length: 4294967296
   offset: 471262384128
   type: netbsd-swap
   index: 5
   end: 928822951
   start: 920434344
6. Name: ada0p6
   Mediasize: 21474836480 (20G)
   Sectorsize: 512
   Stripesize: 4096
   Stripeoffset: 0
   Mode: r0w0e0
   rawuuid: 5189415d-93c3-482b-a58a-5efb59b85ced
   rawtype: 0fc63daf-8483-4772-8e79-3d69d8477de4
   label: WDGreen006
   length: 21474836480
   offset: 475557351424
   type: !0fc63daf-8483-4772-8e79-3d69d8477de4
   index: 6
   end: 970765991
   start: 928822952
7. Name: ada0p7
   Mediasize: 8589934592 (8.0G)
   Sectorsize: 512
   Stripesize: 4096
   Stripeoffset: 0
   Mode: r0w0e0
   rawuuid: 984afbf8-af57-4b43-987e-c29072e35600
   rawtype: 0657fd6d-a4ab-43c4-84e5-0933c84b4f4f
   label: WDGreen007
   length: 8589934592
   offset: 497032187904
   type: linux-swap
   index: 7
   end: 987543207
   start: 970765992
8. Name: ada0p8
   Mediasize: 65536 (64k)
   Sectorsize: 512
   Stripesize: 4096
   Stripeoffset: 1024
   Mode: r0w0e0
   rawuuid: 8a48eee6-c31e-11e0-98dc-8c89a5131554
   rawtype: 83bd6b9d-7f41-11dc-be0b-001560b84f0f
   label: WDGreen008
   length: 65536
   offset: 159877186560
   type: freebsd-boot
   index: 8
   end: 312260257
   start: 312260130
9. Name: ada0p9
   Mediasize: 107374182400 (100G)
   Sectorsize: 512
   Stripesize: 4096
   Stripeoffset: 1024
   Mode: r1w1e1
   rawuuid: 53268360-c320-11e0-98dc-8c89a5131554
   rawtype: 516e7cb6-6ecf-11d6-8ff8-00022d09712b
   label: WDGreen009
   length: 107374182400
   offset: 159877252096
   type: freebsd-ufs
   index: 9
   end: 521975457
   start: 312260258
10. Name: ada0p10
   Mediasize: 4294967296 (4.0G)
   Sectorsize: 512
   Stripesize: 4096
   Stripeoffset: 1024
   Mode: r1w1e0
   rawuuid: 8a8a47aa-c31e-11e0-98dc-8c89a5131554
   rawtype: 516e7cb5-6ecf-11d6-8ff8-00022d09712b
   label: WDGreen010
   length: 4294967296
   offset: 2995629343744
   type: freebsd-swap
   index: 10
   end: 5859227169
   start: 5850838562
11. Name: ada0p11
   Mediasize: 182536110080 (170G)
   Sectorsize: 512
   Stripesize: 4096
   Stripeoffset: 1024
   Mode: r1w1e1
   rawuuid: 77b45a5a-c320-11e0-98dc-8c89a5131554
   rawtype: 516e7cb6-6ecf-11d6-8ff8-00022d09712b
   label: WDGreen011
   length: 182536110080
   offset: 267251434496
   type: freebsd-ufs
   index: 11
   end: 878491297
   start: 521975458
12. Name: ada0p12
   Mediasize: 21474836480 (20G)
   Sectorsize: 512
   Stripesize: 4096
   Stripeoffset: 0
   Mode: r0w0e0
   rawuuid: 7452f294-430c-496a-8520-8495ddc660b8
   rawtype: 0fc63daf-8483-4772-8e79-3d69d8477de4
   label: WDGreen012
   length: 21474836480
   offset: 505622122496
   type: !0fc63daf-8483-4772-8e79-3d69d8477de4
   index: 12
   end: 1029486247
   start: 987543208
13. Name: ada0p13
   Mediasize: 107374182400 (100G)
   Sectorsize: 512
   Stripesize: 4096
   Stripeoffset: 0
   Mode: r0w0e0
   rawuuid: bfabd28d-bf84-4f99-84a5-f67ea96f3d3c
   rawtype: 0fc63daf-8483-4772-8e79-3d69d8477de4
   label: WDGreen013
   length: 107374182400
   offset: 527096958976
   type: !0fc63daf-8483-4772-8e79-3d69d8477de4
   index: 13
   end: 1239201447
   start: 1029486248
14. Name: ada0p14
   Mediasize: 214748364800 (200G)
   Sectorsize: 512
   Stripesize: 4096
   Stripeoffset: 0
   Mode: r0w0e0
   rawuuid: 20b43d00-0a43-419d-9527-d901b6633be8
   rawtype: 0fc63daf-8483-4772-8e79-3d69d8477de4
   label: WDGreen014
   length: 214748364800
   offset: 634471141376
   type: !0fc63daf-8483-4772-8e79-3d69d8477de4
   index: 14
   end: 1658631847
   start: 1239201448
Consumers:
1. Name: ada0
   Mediasize: 3000592982016 (2.7T)
   Sectorsize: 512
   Stripesize: 4096
   Stripeoffset: 0
   Mode: r4w4e7

Geom name: da2
modified: false
state: OK
fwheads: 255
fwsectors: 63
last: 31277022
first: 34
entries: 128
scheme: GPT
Providers:
1. Name: da2p1
   Mediasize: 65536 (64k)
   Sectorsize: 512
   Stripesize: 0
   Stripeoffset: 17408
   Mode: r0w0e0
   rawuuid: 5854df54-798d-11e1-b1eb-8c89a5131554
   rawtype: 83bd6b9d-7f41-11dc-be0b-001560b84f0f
   label: usb32boot
   length: 65536
   offset: 17408
   type: freebsd-boot
   index: 1
   end: 161
   start: 34
2. Name: da2p2
   Mediasize: 13958643712 (13G)
   Sectorsize: 512
   Stripesize: 0
   Stripeoffset: 82944
   Mode: r0w0e0
   rawuuid: 2f1ca844-798e-11e1-b1eb-8c89a5131554
   rawtype: 516e7cb6-6ecf-11d6-8ff8-00022d09712b
   label: usb32root
   length: 13958643712
   offset: 82944
   type: freebsd-ufs
   index: 2
   end: 27263137
   start: 162
3. Name: da2p3
   Mediasize: 2055109120 (1.9G)
   Sectorsize: 512
   Stripesize: 0
   Stripeoffset: 1073824768
   Mode: r0w0e0
   rawuuid: 444279bf-798e-11e1-b1eb-8c89a5131554
   rawtype: 516e7cb5-6ecf-11d6-8ff8-00022d09712b
   label: usb32swap
   length: 2055109120
   offset: 13958726656
   type: freebsd-swap
   index: 3
   end: 31277022
   start: 27263138
Consumers:
1. Name: da2
   Mediasize: 16013852672 (14G)
   Sectorsize: 512
   Mode: r0w0e0


-- 
Tom

Thomas Mueller

2013-Aug-15 03:40 UTC

head link

Change in loader or kernel: won't boot with kfreebsd in grub2

> On 14.08.2013 07:22, Thomas Mueller wrote:
> > How do I make a photo when I don't have a digital camera?
> > If I had a digital camera, how would I convert the picture to text?
        > You can attach images to email, or just share somewhere,
> e.g. http://imm.io
> > I looked at "man gpart" and didn't see "list"
in the list of
> > commands: a little deficiency in the man page.
        > This is generic geom's command, it is described in geom(8).
--> WBR, Andrey V. Elsukov
But as I said, I don't have a digital camera.

In any case, sending a graphic image of what ought to be a small text file is
very clumsy and inefficient.

There ought to be a way to capture loader-command output to a file.  Question is
how to do that at the loader level.

I will try again later this week or weekend and post what I can of lsdev output.

Tom

Thomas Mueller

2013-Aug-15 15:11 UTC

head link

Change in loader or kernel: won't boot with kfreebsd in grub2

> > But as I said, I don't have a digital camera.
> > In any case, sending a graphic image of what ought to be a small text
file is very clumsy and inefficient.
> > There ought to be a way to capture loader-command output to a file. 
Question is how to do that at the loader level.
        > Might I humbly suggest a serial console?  You can then capture the data as
text.
        > If this is a server, it's rare these days to not have an IP-KVM
solution built-in, and even more rare to not have full console to serial
redirection from
> +the first BIOS screen all the way to the OS grabbing the port.
> Or you can borrow someone's cell phone, I can't recall the last
time I saw one without a camera.
> Charles
This computer is not a server, and I don't have a serial console.

Also, this computer, like most computers these days, has no serial or parallel
port, though there is a serial header on the motherboard.

Only possible connectivity I have is Ethernet, and possibly I could set up WiFi.

I have a land phone but no cell phone, at least not yet: behind the times.

Tom

Thomas Mueller

2013-Aug-19 01:40 UTC

head link

Change in loader or kernel: won't boot with kfreebsd in grub2

I finally tried again to track down that booting problem with FreeBSD via Super
Grub Disk with kfreebsd.

I also tried, unsuccessfully, the menu choice "Detect any operating
system".

That failed for failure to find commands "freebsd" and
"frebsd-loadenv".

In the latter command, "frebsd-loadenv" was apparently misspelled; I
copy what I saw.

When I tried to boot by kfreebsd, I got a prompt (OK) and lsdev produced

cd devices:
disk devices:
    disk0   BIOS drive A:
      disk0s1: Unknown
    disk1:  BIOS drive C:
    disk2:  BIOS drive D:
      disk2p1: FreeBSD boot
      disk2p2: FreeBSD UFS
      disk2p3: FreeBSD swap
    disk3:  BIOS drive E:
      disk3p1: FreeBSD boot
      disk3p2: FreeBSD UFS
      disk3p3: FreeBSD swap
pxe devices:
OK


So I assume disk2 and disk3 are USB sticks, disk1 is Western Digital Caviar
Green 3 TB SATA hard drive, and disk0 is Western Digital My Book Essential 3 TB
USB 3.0 hard drive, GPT-partitioned.

So the loader (?) missed out on disk0 and disk1

I can repeat what uname -a shows:


FreeBSD amelia2 9.2-PRERELEASE FreeBSD 9.2-PRERELEASE #17 r254196: Sun Aug 11
00:36:49 UTC 2013     root at amelia2:/usr/obj/usr/src/sys/SANDY  amd64



Tom

Thomas Mueller

2013-Aug-19 19:30 UTC

head link

Change in loader or kernel: won't boot with kfreebsd in grub2

I can repeat (again) what uname -a shows:


FreeBSD amelia2 9.2-PRERELEASE FreeBSD 9.2-PRERELEASE #17 r254196: Sun Aug 11
00:36:49 UTC 2013     root at amelia2:/usr/obj/usr/src/sys/SANDY  amd64
> Hello,
        > can you try to install this loader?
        >  http://people.freebsd.org/~ae/loader
> WBR, Andrey V. Elsukov
I just downloaded it, saving as loaderae, using your email username and initials
as a suffix.

I assume loader works under a different name?

I can use "kfreebsd/loaderae" instead of "kfreebsd
/boot/loader", and loaderae will be preserved over the next update from
source.

Then I will want to test the new /boot/loader which might possibly work right
with kfreebsd.

Or maybe I will have a newer kfreebsd.


Tom

Thomas Mueller

2013-Aug-20 01:59 UTC

head link

Change in loader or kernel: won't boot with kfreebsd in grub2

>  ..so you probably never saw my post about the updated super grub disk iso:
       
http://lists.freebsd.org/pipermail/freebsd-stable/2013-August/074711.html
>  I.e. they fixed the kfreebsd misspelling and the grub 2.00 bug that
> prevented it from booting a 9.1+ kernel directly, so the autodetection
> now has better chances of working.  (They even added loader to the
> autodetection so you can also `e'dit that entry and change loader to
> loaderae to test this.)
> HTH, :)
>         Juergen
I remember that message you refer to but thought the bug was not fixed yet in
Super Grub Disk.

How would I make it into something like a giant floppy image that can be booted
from syslinux or isolinux like the Super Grub Disk on the System Rescue CD?

I could also try something by building grub2 from FreeBSD ports, don't know
just what booting images I can create.

Tom

Thomas Mueller

2013-Aug-20 02:58 UTC

head link

Change in loader or kernel: won't boot with kfreebsd in grub2

I can repeat (again) what uname -a shows:


FreeBSD amelia2 9.2-PRERELEASE FreeBSD 9.2-PRERELEASE #17 r254196: Sun Aug 11
00:36:49 UTC 2013     root at amelia2:/usr/obj/usr/src/sys/SANDY  amd64
> Hello,
        > can you try to install this loader?
        >  http://people.freebsd.org/~ae/loader
> WBR, Andrey V. Elsukov
I just downloaded it, saving as loaderae, using your email username and initials
as a suffix.

I assume loader works under a different name?

I can use "kfreebsd/loaderae" instead of "kfreebsd
/boot/loader", and loaderae will be preserved over the next update from
source.

Then I will want to test the new /boot/loader which might possibly work right
with kfreebsd.

Or maybe I will have a newer kfreebsd.

Update: Actually there was a typo above:

I meant "kfreebsd /boot/loaderae" and not
"kfreebsd/loaderae".

Anyway, I tried 

kfreebsd /boot/loaderae

and got the same thing as with

kfreebsd /boot/loader

was taken to a loader prompt where I could not access any files on the hard
disk.

So again I had to reboot, this time from the USB stick and at the loader prompt
typed
set boot_askname


Tom

Thomas Mueller

2013-Aug-20 03:42 UTC

head link

Change in loader or kernel: won't boot with kfreebsd in grub2

> On 20.08.2013 06:58, Thomas Mueller wrote:
> > was taken to a loader prompt where I could not access any files on
> > the hard disk.
> Was the output of lsdev command the same or something changed?
> > So again I had to reboot, this time from the USB stick and at the
> > loader prompt typed set boot_askname
> WBR, Andrey V. Elsukov
Only difference in lsdev output was that the USB sticks didn't show, but
that was because I had removed them.

I reinserted the USB sticks, but they still didn't show, probably because
the loader presumably does not recognize newly inserted USB sticks.

I then typed "reboot" and successfully rebooted from the appropriate
USB stick.

Tom

Thomas Mueller

2013-Aug-20 21:54 UTC

head link

Change in loader or kernel: won't boot with kfreebsd in grub2

This is what /cdrom/isolinux/isolinux.cfg shows for Super Grub2 Disk entry:

LABEL grubdisk
MENU LABEL SGD: Super Grub2 Disk
kernel memdisk
append initrd=/bootdisk/grubdisk.img floppy raw

This is from the latest SysRescCD beta.

Now I wonder how or if one can access a CD or DVD from GRUB2.

GRUB2 has (hd0) (hd1) (fd0) but no (cd) or (cd0).

I also wonder how or if one can boot a FreeBSD partition from GRUB2 or syslinux.

Tom

Thomas Mueller

2013-Aug-22 02:41 UTC

head link

Change in loader or kernel: won't boot with kfreebsd in grub2

> Not sure about a physical cd but booting an iso should be possible
> using either memdisk from grub2 like in the posting I linked,
        >        
http://ubuntuforums.org/showthread.php?t=1549847&page=13&p=10818457#post10818457
        > _or_ also using grub2's own loopback command like described here:
        >         http://michael-prokop.at/blog/2009/05/25/boot-an-iso-via-grub2/
        > (but btw the super grub disk iso should also boot directly when dd'd
> to an usb key, not only when burned to a cd/dvd.)
>  It could only be that the partition table on your disk is somehow
> messed up/has leftover data from a previous install that confused
> loader and might confuse grub2 too so that it doesn't find the
> FreeBSD install...
> > I also wonder how or if one can boot a FreeBSD partition from GRUB2 or
syslinux.
>
>  That's what super grub disk's autodetection should now detect
> correctly, if you want to write a grub.cfg entry manually (or type
> it live from a grub2 rescue shell) an example is also here:
>         http://forums.freebsd.org/showthread.php?p=85122#post85122
> but note as I said before if you want to boot a 9.1+ kernel directly
> w/o loader you need a grub 2.00 version that has the patch mentioned
> here:  (that's now in debian and in FreeBSD ports but might not be
> in other grub2 versions floating around)
>         http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=699002
> Tom
>
 HTH, :)>         Juergen
I tried to boot the FreeBSD partition directly from Super Grub2 Disk with
chainloader +1, but was not successful.

I think some FreeBSD boot code is in a small boot partition such as I have on
the USB-stick installations, installed with gpart.

I wonder if "linux16 memdisk" from grub2 is the same as "KERNEL
memdisk" in syslinux: was planning to try it on FreeDOS 1.1 installation
fd11src.iso .

I also have a memdisk in the latest syslinux installed from FreeBSD ports.

Once FreeBSD boots from the USB stick, it accesses the GPT partitions OK as far
as I can tell.

I could even check with a USB-stick installation of NetBSD, though NetBSD is
much less stable than FreeBSD on my modern hardware.

I was even thinking of making a giant floppy image, not to write to an actual
disk, but to boot via grub2 or possibly grub4dos.

I would copy /boot but not including the modules to another directory, apply
makefs, mdconfig, mount this image, and bsdlabel.

I did something like that with NetBSD 5.1_STABLE i386, and it worked with
grub4dos.

I would of course have to interrupt the boot to be able to specify the root file
system, as I did with NetBSD, or maybe put into loader.conf .

map --mem --heads=16 --sectors-per-track=63 (hd0,2)/boot2/nbffs51c.img (fd0)
map --hook
rootnoverify (fd0)
chainloader (fd0)+1
boot

and hit the spacebar in time to get the boot menu, so I coulld type
boot netbsd -a
to specify the root file system, or I could boot any other kernel present in the
40 MB "floppy" image.

Grub4dos, being born from DOS, requires setting a (fictitious here) disk
geometry.

Tom

Thomas Mueller

2013-Aug-24 04:30 UTC

head link

Change in loader or kernel: won't boot with kfreebsd in grub2

I could see what happens if I try to boot the FreeBSD boot partition on the hard
drive using the Super Grub Disk with chainloader.

If that works, it would boot FreeBSD 9.0-BETA1, but I would see if it works.

I could also try
kfreebsd /boot/kernel/kernel

On my hard-drive installation, I have a lot of ports to rebuild, and then get to
sysutils/grub2: see UPDATING.

But I could also build grub2 on my USB-stick installation.

I really need either a successful FreeDOS 1.1 installation on USB stick, or
SysRescCD installation on USB stick, largely because either of these boot via
syslinux, and then I can add things to syslinux.cfg and bootdisk.

The only MBR installation of FreeBSD that I have is 8.2 RELEASE on the old
computer, which I intend to recycle in very near future, though I plan to save
the hard drives (IDE/PATA).

Tom

Thomas Mueller

2013-Aug-25 03:53 UTC

head link

Change in loader or kernel: won't boot with kfreebsd in grub2

Some updates:

I could see what happens if I try to boot the FreeBSD boot partition on the hard
drive using the Super Grub Disk with chainloader.

If that works, it would boot FreeBSD 9.0-BETA1, but I would see if it works.

That failed (invalid signature).

I could also try
kfreebsd /boot/kernel/kernel

That failed to boot the proper partition, went to the debugger (db>),
whereupon all I could type was "reboot".

Now can I safely install boot into the partition to be booted, as I did with
NetBSD on USB stick?

gpart -p /boot/boot -i 3 

That would be for /dev/ada0p3, but I am afraid of damaging something.

Tom

Thomas Mueller

2013-Aug-25 22:35 UTC

head link

Change in loader or kernel: won't boot with kfreebsd in grub2

> On Sat, Aug 24, 2013 at 08:53:31PM -0700, Thomas Mueller wrote:
> > Some updates:
> > I could see what happens if I try to boot the FreeBSD boot partition
on the hard drive using the Super Grub Disk with chainloader.
> > If that works, it would boot FreeBSD 9.0-BETA1, but I would see if it
works.
> > That failed (invalid signature).
> You probably need to chainload a freebsd-boot partition, _if_ you
> want to chainload at all.
I was trying to chainload the freebsd-boot partition!  But grub2 didn't like
it.
> > I could also try
> > kfreebsd /boot/kernel/kernel
> > That failed to boot the proper partition, went to the debugger
(db>), whereupon all I could type was "reboot".
>  You didn't get a mountroot prompt?  If you did you can try typing a
> question mark and return, that should list possible partitions to mount
> root from.  If you didn't, or you don't want to do this manually
you
> need to set kFreeBSD.vfs.root.mountfrom=ufs:/dev/ada0p1 from grub2,
> or wherever your root partition is.
I remember pressing a key, but then the system rushed past the mountroot prompt
into the debugger prompt.
> > Now can I safely install boot into the partition to be booted, as I
did with NetBSD on USB stick?
> > gpart -p /boot/boot -i 3
> > That would be for /dev/ada0p3, but I am afraid of damaging something.
>  That would need to be on a freebsd-boot partition, and you want
> /boot/gptboot not /boot/boot.
I believe bsdlabel can be used to install boot code to a partition, but believe
that is not for GPT.  I could try bsdlabel on a giant floppy image as I used
installboot on a giant floppy image for NetBSD.
> Tom
>  HTH,
>         Juergen


Tom

freebsd stable - Aug 2013 - Change in loader or kernel: won't boot with kfreebsd in grub2

Change in loader or kernel: won't boot with kfreebsd in grub2

Change in loader or kernel: won't boot with kfreebsd in grub2

Change in loader or kernel: won't boot with kfreebsd in grub2

Change in loader or kernel: won't boot with kfreebsd in grub2

Change in loader or kernel: won't boot with kfreebsd in grub2

Change in loader or kernel: won't boot with kfreebsd in grub2

Change in loader or kernel: won't boot with kfreebsd in grub2

Change in loader or kernel: won't boot with kfreebsd in grub2

Change in loader or kernel: won't boot with kfreebsd in grub2

Change in loader or kernel: won't boot with kfreebsd in grub2

Change in loader or kernel: won't boot with kfreebsd in grub2

Change in loader or kernel: won't boot with kfreebsd in grub2

Change in loader or kernel: won't boot with kfreebsd in grub2

Change in loader or kernel: won't boot with kfreebsd in grub2

Change in loader or kernel: won't boot with kfreebsd in grub2

Change in loader or kernel: won't boot with kfreebsd in grub2

Change in loader or kernel: won't boot with kfreebsd in grub2