Re: grub on lvm2

[Michael Guntsche]

On Feb 7, 2007, at 2:00 PM, Mark Hannessen wrote:

> ok I now made it look like this:
>
> menuentry "My Linux Kernel on (lvm2_core-boot)" {
>     set root=(lvm2_core_boot)
>     linux (lvm2_core_boot)/boot/vmlinuz root=/dev/ram
>     initrd (lvm2_core_boot)/boot/initrd
> }

My config with lvm looks pretty similar but I am using an initramfs  
image and its looking like this

menuentry "Debian GNU/Linux, linux 2.6.20" {
  set root=(fatoftheland-main)
  linux /boot/vmlinuz-2.6.20 root=/dev/mapper/fatoftheland-main ro
  initrd  /boot/initrd.img-2.6.20
}


> this I used for my core.img
>
> grub-mkimage -d /boot/grub -v -o /boot/grub/core.img ls ext2 gpt pc  
> linux
> _linux boot chain configfile fshelp help lvm

As far as I remember (it has been a long time since I last created  
the core.img file) the order is important. Try

grub-mkimage -o /boot/grub/core.img pc lvm ext2 _chain

> and this is the most far I got:
>
> grub-setup -d /boot/grub -v -r '(lvm2_core-boot)' -m /boot/grub/ 
> device.map '(lvm2_core-boot)'

Use the real disk here and not the lvm VG.

grub-setup -r '(fatoftheland-main)' '(hd0)'.


This works for me.

Kind regards,
Michael