[syslinux] Replace grub with extlinux

[Gert Hulselmans]

Face wrote:
> On Tue, Aug 10, 2010 at 11:03 PM, Gert Hulselmans <gerth at zytor.com> wrote:
>>
>> Read the contents of your grub.cfg file:
>> $ cat /boot/grub/grub.cfg
>>
>> Look for similar lines like this:
>>
>> menuentry "Ubuntu, Linux 2.6.31-22-generic" {
>>        recordfail=1
>>        if [ -n ${have_grubenv} ]; then save_env recordfail; fi
>>        set quiet=1
>>        insmod ext2
>>        set root=(hd0,12)
>>        search --no-floppy --fs-uuid --set
>> 5d0ca1ae-77f5-4fe9-97d0-caf54bd58ce7
>>        linux   /vmlinuz-2.6.31-22-generic
>> root=UUID=5d0ca1ae-77f5-4fe9-97d0-caf54bd58ce7 ro   quiet splash
>>        initrd  /initrd.img-2.6.31-22-generic
>> }
>>
>> The first filename after linux keyword, tells you the kernel filename to
>> use in your extlinux.conf.
>> The initrd filename after the initrd keyword, tells you the initrd
>> filename.
>>
>> Quick conversion to Sysliunux syntax (you need menu.c32):
>> ===================================================
>> UI menu.c32
>>
>> LABEL 1
>> MENU LABEL Ubuntu, Linux 2.6.31-22-generic
>> LINUX /vmlinuz-2.6.31-22-generic
>> INITRD /initrd.img-2.6.31-22-generic
>> APPEND root=UUID=5d0ca1ae-77f5-4fe9-97d0-caf54bd58ce7 ro quiet splash
>> ===================================================
>>
>> Note 1: keywords don't need to be capital characters (LINUX or linux
>> makes
>> no difference).
>>
>> Note 2: You can use the 'file' command to get more info about the
>> possible
>> file type of a file. Initrds are most of the time compressed (gzip, ...)
>> so for those files you won't get much info, unless you extract them and
>> run file again on the extracted file).
>>
>> - Gert Hulselmans
>>
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>>
>
> thx for the note i will keep them in mind.however, I am using LFS and
>
> cat /boot/grub/grub.cfg look like this
>
> menuentry "GNU/Linux, with Linux 2.6.34" --class gnu-linux --class gnu
> --class os {
>       insmod ext2
>       set root='(hd0,1)'
>       search --no-floppy --fs-uuid --set
> 0829d529-e526-43ce-a65e-321d7e0a3e03
>       echo Loading Linux 2.6.34 ...
>       linux /boot/vmlinux-2.6.34 root=/dev/sda1 ro
> }
>
>
> i looked for  initrd  /initrd* line but could not find any
>
>
> --
> Sincerely,
>

If it doesn't use an initrd, you won't need to find it.

===================================================
UI menu.c32

LABEL 1
MENU LABEL GNU/Linux, with Linux 2.6.34
LINUX /boot/vmlinux-2.6.34
APPEND root=/dev/sda1 ro
===================================================

- Gert Hulselmans