package: fai-setup-storage
version: 5.5.3
X-Debbugs-CC: l...@sanger.ac.uk
Hi,
If you have a disk config like the below, with a single / partition
(i.e. no separate /boot) on LVM on md-raid, then BOOT_DEVICE is set
incorrectly, such that the fai GRUB setup scripts won't manage to
install GRUB correctly.
For example, in the below example, BOOT_DEVICE is set to
/dev/vg_fai/root ; while the example GRUB_PC/10-setup understands
devices like /dev/mdXX (and installs grub correctly on the underlying
devices), it doesn't understand LVM device names.
It seems to me that there are 3 possible solutions:
i) fai-setup-storage knows that / is on LVM, so should set BOOT_DEVICE
to the underlying pv (which GRUB_PC/10-setup would grok)
ii) fai-setup-storage's config file should be extended so you can
explicitly set boot_device (e.g. the below would have "rad1 -
disk1.1,disk2.1 - - BOOT_DEVICE)
iii) GRUB_PC/10-setup could spot an LVM BOOT_DEVICE and find the
underlying pv, e.g.
x=$(readlink -f $BOOT_DEVICE)
if [ "${x%%-*}" = "/dev/dm" ]; then
BOOT_DEVICE=$( lvs --noheadings -o devices $BOOT_DEVICE | sed -e 's/^
*\([^(]*\)(.*$/\1/' )
fi
and then let the rest of the script do its thing as before. [if you'd
like a proper patch of this form, let me know :) ]
example disk config:
# <type> <mountpoint> <size> <fs type> <mount options> <misc options>
# Root partition with RAID and LVM, single root partition
disk_config disk1 disklabel:gpt-bios fstabkey:uuid align-at:1M bootable:1
primary - 120G- - -
disk_config disk2 sameas:disk1
disk_config raid fstabkey:uuid
raid1 - disk1.1,disk2.1 - -
disk_config lvm fstabkey:uuid
vg vg_fai md0
vg_fai-root / 100G- ext3 errors=remount-ro
vg_fai-swap swap 16G swap sw
Thanks,
Matthew
--
The Wellcome Sanger Institute is operated by Genome Research
Limited, a charity registered in England with number 1021457 and a
company registered in England with number 2742969, whose registered
office is 215 Euston Road, London, NW1 2BE.
