В Thu, 28 Aug 2014 14:31:30 +0100 Bayard Bell <buffer.g.overf...@gmail.com> пишет:
> In moving my boot device to mirrored LVM under Debian jessie, I ended up > unable to boot. I thought my problem was that I failed to run install-grub > after adding GRUB_PRELOAD_MODULES=lvm to /etc/default/grub, but when I > finally sorted out a working PXE image for rescue, I found that I was > unable to install while mirrored. That appears to be in part because Debian > has taken upgrades to LVM2 that change the default mirroring layout from > "mirror" to "raid1" (mirror_segtype_default = "raid1" in /etc/lvm/lvm.conf; > the lvm pages are also clear on this distinction and the defaults), which > results in an inability to successfully probe /boot/grub, which breaks > grub-install. The clearest indication I could find of this as likely root > cause was a debug message from grub-probe "Unknown LVM format raid1". > Looking at the source head, it appears that there's first a check for raidX > in lines 580-583 of grub-core/disk/lvm.c but that the subsequent switch at > lines 587-600 provides for raid[456] but not raid1, which isn't defined in > include/grub/diskfilter.h. > Is there functional difference (to the extent grub is using it) between mirror and raid1 in LVM? If not, just use GRUB_DISKFILTER_MIRROR in this case. > I'm looking at doing a bit more debug to confirm this before assessing fix > options, but am I on the right track thus far? > Yes. Patch is appreciated. _______________________________________________ Grub-devel mailing list Grub-devel@gnu.org https://lists.gnu.org/mailman/listinfo/grub-devel
