similar to: Re: how does grub exactly work?

Displaying 20 results from an estimated 3000 matches similar to: "Re: how does grub exactly work?"

2010 Jun 04
1
[PATCH] chain.c32: add support for loading GRUB stage2
This adds (basic) support for GRUB stage2 image files. Loading a stage2 image will probably give you a GRUB prompt, with GRUB's "root" set at "(hd0)" (ie, entire first disk). Maybe the "root" will differ in less common setups. (One can of course select another disk and/or partition with GRUB's "root" command.) This has only been tested with version
2009 Sep 24
7
[patch 0/2] grub-0.97: btrfs support
Hello everyone. The following patches are for Fedora 10(**). The distro-independent package will be put to kernel.org a bit later. I. Loading kernels from btrfs volumes Now you can load kernels and initrds from btrfs volumes composed of many devices. WARNING!!! Make sure that all components of your loading btrfs volume(*) are visible to grub. Otherwise, you''ll end with
2009 Sep 24
6
[patch 1/2] grub-0.97: btrfs support for a singe device configuration
2013 Aug 05
2
problem configuring grub for a dual-boot
I have Windows 7 on /dev/sda and CentOS 6.4 on /dev/sdb. Here are the layouts: (parted) select /dev/sda Using /dev/sda (parted) print Model: ATA WDC WD10EZEX-00Z (scsi) Disk /dev/sda: 1000GB Sector size (logical/physical): 512B/4096B Partition Table: msdos Number Start End Size Type File system Flags 1 1049kB 374MB 373MB primary ntfs boot
2015 Aug 06
3
CentOS 5 grub boot problem
On 08/05/2015 10:23 AM, Chris Murphy wrote: > Nothing about hd0 or hd1 gets baked into the bootloader code. It's an > absolute reference to a physical drive at the moment in time the > command is made. Is that true? If I have a system with two disks, where device.map labels one as hd0 and the other as hd1, and I swap those numbers, the resulting boot sector will differ by one bit.
2015 Aug 06
0
CentOS 5 grub boot problem
On Thu, Aug 6, 2015 at 2:57 PM, Bowie Bailey <Bowie_Bailey at buc.com> wrote: > On 8/6/2015 4:39 PM, Chris Murphy wrote: >> >> On Thu, Aug 6, 2015 at 2:29 PM, Bowie Bailey <Bowie_Bailey at buc.com> wrote: >>> >>> On 8/6/2015 4:21 PM, Chris Murphy wrote: >>>> >>>> On Thu, Aug 6, 2015 at 2:08 PM, Bowie Bailey <Bowie_Bailey at
2015 Aug 05
2
CentOS 5 grub boot problem
I never thought I'd say this, but I think it's easier to do this with GRUB 2. Anyway I did an installation to raid1's in CentOS 6's installer, which still uses GRUB legacy. I tested removing each of the two devices and it still boots. These are the commands in its log: : Running... ['/sbin/grub-install', '--just-copy'] : Running... ['/sbin/grub',
2005 Dec 02
1
FIXED Re: Re: MD Raid 1 software device not booting not even reaching grub
doing that grub-install /dev/sda will give me the "corresponding BIOS device" error. But now I fixed it by doing a manual grub install. first boot with cd1 and type linux rescue at the prompt when you're at the linux prompt after detecting and mounting the partitions, do a "chroot /mnt/sysimage" then # grub --batch #grub> root (hd0,0) Filesystem type is ext2fs,
2015 Aug 07
2
CentOS 5 grub boot problem
On 8/6/2015 5:11 PM, Chris Murphy wrote: > On Thu, Aug 6, 2015 at 2:57 PM, Bowie Bailey <Bowie_Bailey at buc.com> wrote: >> >> Ok. I'll give that a try tomorrow. Just a couple of questions. >> >> install --stage2=/boot/grub/stage2 /grub/stage1 d (hd0,1) /grub/stage2 p >> (hd0,1)/grub/grub.conf >> >> It looks like this mixes paths relative to
2015 Aug 06
0
CentOS 5 grub boot problem
On Thu, Aug 6, 2015 at 2:59 PM, Gordon Messmer <gordon.messmer at gmail.com> wrote: > On 08/05/2015 10:23 AM, Chris Murphy wrote: >> >> Nothing about hd0 or hd1 gets baked into the bootloader code. It's an >> absolute reference to a physical drive at the moment in time the >> command is made. > > > Is that true? If I have a system with two disks,
2015 Aug 05
0
CentOS 5 grub boot problem
On Wed, Aug 5, 2015 at 9:12 AM, Bowie Bailey <Bowie_Bailey at buc.com> wrote: > I am trying to upgrade my system from 500GB drives to 1TB. I'm going to guess that there are no IDE drives that have 4096 byte physical sectors, but it's worth confirming you don't have such a drive because the current partition scheme you've posted would be sub-optimal if it does have 4096
2015 Aug 05
2
CentOS 5 grub boot problem
On 8/5/2015 12:34 PM, Chris Murphy wrote: > On Wed, Aug 5, 2015 at 9:12 AM, Bowie Bailey <Bowie_Bailey at buc.com> wrote: >> I am trying to upgrade my system from 500GB drives to 1TB. > I'm going to guess that there are no IDE drives that have 4096 byte > physical sectors, but it's worth confirming you don't have such a > drive because the current partition
2012 Jul 16
4
Can't get Grub work on clone of machine
Hi. I have cloned a RHEL 5.6 physical server over to a ESXi 5.0 Virtual Machine. Using a live CD on the new Virtual Machine I created 3 partition /boot (/dev/sda1), / (/dev/sda2) and swap (/dev/sda3), I then mounted the / (sda2) partition and created the /boot directory and mount the boot partition partition /dev/sda1 into /boot. I then used rsync to copy the source machine over to the Virtual
2011 Mar 19
1
Dual-booting VMware and chainbooting GRUB
Dear All: I am having trouble trying to dual-boot VMware and Linux, and I tried everything I could come up with. The situation is that /dev/sda is fully used by VMware and /dev/sdb is used by Linux. VMware uses Syslinux, so I thought this would be simple... However, it is not. The bootable FAT partition is too smal to have kernels in it. As a fallback I tried to chain-load GRUB, but that did not
2010 Jun 30
2
[PATCH] chain.c32: add menu support to grub loader
Allow the grub loader to (optionally) support using a GRUB menu file. For example chain fs grub=stage2,grub.conf will load GRUB's stage2 and pass the (absolute) path to the file "grub.conf" in the Syslinux filesystem to GRUB's stage2. The path is passed to stage2 in GRUB's device/partition syntax (eg, "(hd0,1)/foo"). Note that we don't check whether the
2007 Aug 29
2
My server won't boot (grub looping - stage2)
Hi, This morning one of my servers (centos 4.5) refused to boot. The console shows a lopp message grub loading stage2... I've been able to boot from the install CD choosing the rescue option. I can chroot /mnt/sysimage with no problems and even started the services (network, mysql , httpd etc). How can I solve this? I've followed the manual (
2007 Jul 20
1
Grub error 16
I just bought a new computer, Asus P5K motherboard, Intel Core 2 Duo, WD Data drive. I place the CD1 for CentOS5, boot and get: GRUB Loading stage1.5. GRUB loading, please wait... Error 16 Any suggestion? -- Thanks http://www.sqlhacks.com The SQL Server knowledge base
2009 Sep 24
15
grub-0.97: btrfs multidevice support [PATCH]
Hello everyone. Please, find the patch for Fedora 10 in the attachment(**). The distro-independent package will be put to kernel.org a bit later. I. Loading kernels from btrfs volumes Now you can load kernels and initrds from btrfs volumes composed of many devices. WARNING!!! Make sure that all components of your loading btrfs volume(*) are visible to grub. Otherwise,
2015 Aug 05
8
CentOS 5 grub boot problem
I am trying to upgrade my system from 500GB drives to 1TB. I was able to partition and sync the raid devices, but I cannot get the new drive to boot. This is an old system with only IDE ports. There is an added Highpoint raid card which is used only for the two extra IDE ports. I have upgraded it with a 1TB SATA drive and an IDE-SATA adapter. I did not have any problems with the system
2015 Aug 05
0
CentOS 5 grub boot problem
On Wed, Aug 5, 2015 at 11:11 AM, Bowie Bailey <Bowie_Bailey at buc.com> wrote: > On 8/5/2015 1:00 PM, Chris Murphy wrote: >> >> On Wed, Aug 5, 2015 at 10:52 AM, Bowie Bailey <Bowie_Bailey at buc.com> >> wrote: >>> >>> How would I go about pointing it at the partition? >>> >>> What I am currently doing is this: >>> device