I encountered it on 8.10, so updating the description with more info and
marking incomplete.
** Description changed:
- So long as the boot device is not LVM, RAID and LVM can live quite nicely
- together. boot partitions can be RAID1 since each drive can still be accessed
- individually.
- Warty's installer (4.10) does not allow this combination.
+ Installer does not appear to create device.map properly for boot loader
+ when using an LVM on top of a software RAID.
+
+ Situation:
+ Installed Ubuntu 8.10 (using both Desktop alt installer and server
installer)
+ 3 80 GB drives, /boot on /dev/sda1
+ /md0 on sda2,sdb2,sdd2 RAID 5
+ LVM on md0 broken into 2 volumes, 3 GB SWAP and
remaining in root
+ completed install and rebooted, received GRUB error 15 (file not found).
+
+
+ Worked around by following steps:
+ Loaded rescue installer and executed shell in the LVM volume for root
+ mounted /boot
+ ran: /usr/sbin/grub-install /dev/sda --recheck --no-floppy
+ which showed a device.map involving only physical disks, no RAID and no
LVM.
+ Added /dev/<LVMGROUP>/<LVMVOLUME> where root was installed, reran
grub-install, rebooted and it was fixed.
** Tags added: grub installer lvm raid
** Changed in: debian-installer (Ubuntu)
Status: Invalid => Incomplete
--
Installer doesn't allow for use of LVM on SW RAID devices
https://bugs.launchpad.net/bugs/14677
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