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From: Umarzuki Mochlis on 8 Mar 2010 01:30
Assuming Debian Lenny's installer will detect a Ubuntu 10.04 (daily build)
partition in my PC (debian = /dev/sda1, ubuntu = /dev/sda3), i installed
Lenny on sda1 but Ubuntu entry does not show up on GRUB.

# grub-install -v
grub-install (GNU GRUB 0.97)

so i proceed to edit grub taking example from Ubuntu's grub.cfg like below

### BEGIN /etc/grub.d/10_linux ###
menuentry "Ubuntu, with Linux 2.6.32-15-generic" {
recordfail
insmod ext2
set root=(hd0,3)
search --no-floppy --fs-uuid --set 76fe9a67-1168-4154-b994-4b466e92f7df
linux /boot/vmlinuz-2.6.32-15-generic
root=UUID=76fe9a67-1168-4154-b994-4b466e92f7df ro quiet splash
initrd /boot/initrd.img-2.6.32-15-generic

and i came out with:

title Ubuntu, with Linux 2.6.32-15-generic
root (hd0,2)
kernel /boot/vmlinuz-2.6.32-15-generic root=/dev/sda3 ro quiet
splash
initrd /boot/initrd.img-2.6.32-15-generic

but i can't boot that partition, where did i go wrong or Lenny's version of
GRUB cannot boot from ext4 partition?

--
Regards,

Umarzuki Mochlis
http://debmal.my
From: Sjoerd Hardeman on 8 Mar 2010 04:30
Umarzuki Mochlis schreef:
> Assuming Debian Lenny's installer will detect a Ubuntu 10.04 (daily
> build) partition in my PC (debian = /dev/sda1, ubuntu = /dev/sda3), i
> installed Lenny on sda1 but Ubuntu entry does not show up on GRUB.
>
> # grub-install -v
> grub-install (GNU GRUB 0.97)
>
> so i proceed to edit grub taking example from Ubuntu's grub.cfg like below
>
> ...

> but i can't boot that partition, where did i go wrong or Lenny's version
> of GRUB cannot boot from ext4 partition?
I thought grub1 does not boot from ext4. Anyway, grub2 does, so
installing grub2 should solve your issues.

Sjoerd
PS. Make sure you have a rescue cd when installing new bootloaders. An
error is all too easily made (either by you, the installer or whatever
else) and usually results in an unbootable system.

From: Umarzuki Mochlis on 9 Mar 2010 11:30
So now i had installed grub2 and it does not automatically detects a distro
i had installed (before installing debian) on /dev/sda3

I saw this message on /boot/grub/grub.cfg
# DO NOT EDIT THIS FILE
#
# It is automatically generated by /usr/sbin/grub-mkconfig using templates
# from /etc/grub.d and settings from /etc/default/grub

and do i proceed from here?

[snipped]

> I thought grub1 does not boot from ext4. Anyway, grub2 does, so installing
> grub2 should solve your issues.
>
> Sjoerd
> PS. Make sure you have a rescue cd when installing new bootloaders. An
> error is all too easily made (either by you, the installer or whatever else)
> and usually results in an unbootable system.
>
>


--
Regards,

Umarzuki Mochlis
http://debmal.my
From: Andrei Popescu on 9 Mar 2010 15:40
On Wed,10.Mar.10, 00:27:19, Umarzuki Mochlis wrote:
> So now i had installed grub2 and it does not automatically detects a distro
> i had installed (before installing debian) on /dev/sda3
>
> I saw this message on /boot/grub/grub.cfg
> # DO NOT EDIT THIS FILE
> #
> # It is automatically generated by /usr/sbin/grub-mkconfig using templates
> # from /etc/grub.d and settings from /etc/default/grub
>
> and do i proceed from here?

Install os-prober and re-run update-grub.

Regards,
Andrei
--
Offtopic discussions among Debian users and developers:
http://lists.alioth.debian.org/mailman/listinfo/d-community-offtopic
From: Umarzuki Mochlis on 9 Mar 2010 18:40
2010/3/10 Andrei Popescu <andreimpopescu(a)gmail.com>

> On Wed,10.Mar.10, 00:27:19, Umarzuki Mochlis wrote:
> > So now i had installed grub2 and it does not automatically detects a
> distro
> > i had installed (before installing debian) on /dev/sda3
> >
> > I saw this message on /boot/grub/grub.cfg
> > # DO NOT EDIT THIS FILE
> > #
> > # It is automatically generated by /usr/sbin/grub-mkconfig using
> templates
> > # from /etc/grub.d and settings from /etc/default/grub
> >
> > and do i proceed from here?
>
> Install os-prober and re-run update-grub.
>
>
Thanks, the following is the steps taken (which is successful, of course)

1. mount /dev/sda3 (the ext4 os partition) "tune2fs -E test_fs
/dev/sda3; mount -t ext4dev /dev/sda3 /mnt/"
2. copy its menu entry entry in /mnt/boot/grub/grub.cfg
to /etc/grub.d/40_custom
3. run update-grub (it should say that it detects the other os's kernel)
4. new entries for that os will be appended in /boot/grub/grub.cfg




> Regards,
> Andrei
> --
> Offtopic discussions among Debian users and developers:
> http://lists.alioth.debian.org/mailman/listinfo/d-community-offtopic
>
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--
Regards,

Umarzuki Mochlis
http://debmal.my
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