Re: grub2; unknown command initrd
>>> I have debian 5 on /dev/sda1 and ubuntu 10.04 on /dev/sda3
>>> here are my grub.cfg
>>> ### BEGIN /etc/grub.d/10_linux ###
>>> menuentry "Debian GNU/Linux, linux 2.6.26-2-amd64" {
>>> set root=(hd0,1)
>>> search --fs-uuid --set da13d632-e65a-4128-9b06-0ec24a5d390f
>>> linux /boot/vmlinuz-2.6.26-2-amd64
>>> root=UUID=da13d632-e65a-4128-9b06-0ec24a5d390f ro
>>> initrd /boot/initrd.img-2.6.26-2-amd64
>>> }
>>> ### END /etc/grub.d/10_linux ###
>>> ### BEGIN /etc/grub.d/30_os-prober ###
>>> ### END /etc/grub.d/30_os-prober ###
>>> ### BEGIN /etc/grub.d/40_custom ###
>>> menuentry "Ubuntu, with Linux 2.6.32-15-generic" {
>>> 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
>>> }
>>> ### END /etc/grub.d/40_custom ###
>>> whenever i choose to boot ubuntu, i got "unknown comand 'initrd' " but
>>> it is
>>> fine when i boot debian but not after i failed to boot ubuntu, debian
>>> would
>>> fail to boot too with the same message. How do i go about this?
>> 1. Don't you have os-prober installed? Why is Ubuntu in the 40_custom
>> section?
> before going to number 2, is there any other way because os-prober did not
> detect ubuntu on /dev/sda3
> i experimented by adding below in /etc/grub.d/device.map
> (hd0,3) /dev/sda3
> and update-grub2 says it could not find that partition
The default device.map file location is
/boot/grub/device.map
>> 2. can you boot from Ubuntu if you add
>> insmod linux
>> between
>> search --no-floppy --fs-uuid --set 76fe9a67-1168-4154-b994-4b466e92f7df
>> and
>> linux /boot/vmlinuz-2.6.32-15-generic
>> root=UUID=76fe9a67-1168-4154-b994-4b466e92f7df ro
You can make this change temporarily at boot by editing the grub menu
on the fly with "e" if you are worried about editing 40_custom
"permanently."
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