Syslinux - Aug 2005 - Large disk image boot. Any suggestions%2

>I tried the commands that you have presented and I running into
>problems.  I tried the ideology that you presented with both 32 and 16mb
>configurations with no luck.  Is there something that I'm missing?
>
>The win98se boot disk boots (just downloaded it from bootdisk today) so
>I used that as a based for the boot file.
>
>Item 8c works fine (1.44 image) but 8b fails.
>
>dd if=/dev/zero of=boot32mb.bin bs=1M count=16
>/sbin/mkdosfs boot32mb.bin
>ms-sys -f -6 boot32mb.bin
>mount -o loop boot32mb.bin boot32mb
>cp win98se/msdos.sys boot32mb/
>cp win98se/io.sys boot32mb/
>cp win98se/command.sys boot32mb/
>cp win98se/command.com boot32mb/
>umount boot32mb
>
>With the entry in default of:
>
>label 8b
>   kernel memdisk
>   append initrd=bigboot/boot32mb.bin
>label 8c
>   kernel memdisk
>   append initrd=bigboot/win98se.bin
>
>drwxr-xr-x   2 root root     4096 Aug 20 13:48 boot32mb
>-rw-r--r--   1 root root 16777216 Aug 20 14:38 boot32mb.bin
>drwxr-xr-x   2 root root     7168 Dec 31  1969 win98se
>-rw-r--r--   1 root root  1474560 Aug 20 13:29 win98se.bin
I guess it won't work because boot32mb.bin isn't floppy size, so it
needs to be partioned like a hard disk for memdisk to boot it.

I don't know offhand how to get it to work.

robotti at godmail.com wrote:
> 
> I guess it won't work because boot32mb.bin isn't floppy size, so it
> needs to be partioned like a hard disk for memdisk to boot it.
> 
If it's not conventional floppy size, you need to explicitly specify 
"append floppy c=XX h=XX s=XX" where c/h/s are the appropriate 
cylinder/head/sector geometry.

	-hpa

>If it's not conventional floppy size, you need to explicitly specify
>"append floppy c=XX h=XX s=XX" where c/h/s are the appropriate
>cylinder/head/sector geometry.
>
>        -hpa
So, it would be like this for a 16MB image.

label 8b
  kernel memdisk floppy c=16 h=64 s=32
  append initrd=bigboot/boot32mb.bin

You can use minfo to get c, h, and s.

You need to install the mtools package.

Put this in /etc/mtools.conf.

drive x: file="/test/dos.img"

dd if=/dev/zero of=/test/dos.img bs=1M count=16
mkdosfs /test/dos.img
ms-sys -f -6 /test/dos.img
minfo x:

device information:
==================filename="/test/dos.img"
sectors per track: 32
heads: 64
cylinders: 16

mformat command line: mformat -t 16 -h 64 -s 32 x:

bootsector information
=====================banner:"MSWIN4.1"
sector size: 512 bytes
cluster size: 4 sectors
reserved (boot) sectors: 1
fats: 2
max available root directory slots: 512
small size: 32768 sectors
media descriptor byte: 0xf8
sectors per fat: 32
sectors per track: 32
heads: 64
hidden sectors: 0
big size: 0 sectors
physical drive id: 0x0
reserved=0x0
dos4=0x29
serial number: 430801B9
disk label="           "
disk type="FAT16   "

>So, it would be like this for a 16MB image.
>
>label 8b
>  kernel memdisk floppy c=16 h=64 s=32
>  append initrd=bigboot/boot32mb.bin
I mean.

label 8b
  kernel memdisk
  append initrd=bigboot/boot32mb.bin floppy c=16 h=64 s=32