Will Senn wrote:
Hi,
In transitioning from the virtualbox world to actual hardware, I have hit a
snag and I am hoping y'all can help.
I have followed the 7.8-rc1 book all the way up to installing grub. But,
when I try to install grub, it generates an error:
root:/# grub-install /dev/sdb
Installing for i386-pc platform.
grub-install: error: disk `lvm/vg1-lfs--root' not found.
My specific situation is that I am running on:
Dell Optiplex 755 with 2 physical drives:
/dev/sda (windows 8) a SATA III
/dev/sdb (debian 8) an SSD
On the second drive, I have 4 partitions set up:
/dev/sdb1 /boot
/dev/sdb2 /
/dev/sdb3 Swap
/dev/sdb4 LVM
The LVM set up is as follows:
pvdisplay
PV Name /dev/sdb4
VG Name vg1
lvdisplay
LV Path /dev/vg1/lfs-root
LV Name lfs-root
LV Path /dev/vg1/lfs-swap
LV Name lfs-swap
ls /dev/mapper/
control vg1-lfs--root vg1-lfs--swap
In Jessie, /boot contained the grub boot stuff for jessie. In order to
allow LFS to manage the boot process, I moved the files into an _archive
folder.
I then copied all of the $LFS/boot files into /boot.
I entered the LFS chroot and ran:
grub-install /dev/sdb
That's when I got the error. I figure that I can recover the debian grub
instance as a fallback, but I would rather give LFS control.
So, as a recap... /boot is on /dev/sdb1, the LFS chroot is on
/dev/vg1/lfs-root and the LFS swap is on /dev/vg1/lfs-swap. I would like to
be able to boot the system using grub.
Why do you want your lfs root partition in a LVM container? I suppose
grub can handle that, but it makes things a lot more complicated. Even
in the above situation, Debian is not booting to a LVM partition.
IIRC, you need a initrd to boot into a system with a root partition in LVM.
I suggest tarring up the lfs partition and saving it on debian. Dump
the LVM and create /dev/sdb4 as a regular ext4 partition (You can reuse
the swap partition on sdb3). Then restore the saved LFS to sdb4 and
mount it as /mnt/lfs. Do a bind mount of /boot to /mnt/lfs/boot,
remount the virtual partitions and enter chroot. You should be able to
follow the book, but you don't have to install grub. Just edit the
grub.cfg file and add a menuentry for LFS.
-- Bruce
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