Dear Lennart, Thanks very much for such a fast response --- I'm well aware that dmraid is "not recommended", but it would be really handy if I could keep it for the Windows dual boot. Your suggestion that mdadm supports Intel RST sounds really interesting --- but I can't see anything that documents how you activate/use it in the Debian installer.
It does appear possibly to just be enabled by default, in that if I run through the wheezy installer *without* adding the dmraid=true kernel boot parameter, then it recognises a "Linux Software Raid" array on /dev/md126; with some false starts I've managed to partition this as before (small /boot, then a large dm-crypt partition on which I put LVM, then splitting the LVM into swap and root partitions). Again, grub tries to install to /dev/hda1 and fails, but this time when I reboot to the wheezy rescue mode, things are much more complicated. During disk discovery, it doesn't recognise the RAID array until I tell the installer to look for it, at which point it recognises /dev/md126 but doesn't do anything with it. I had to manually start a shell and invoke cryptsetup luksOpen /dev/md126p7 dm-6_crypt then restart the disk discovery process, finally being given an option to use /dev/mapper/waif-root for my root partition. Then, however, I ran into trouble with grub: update-grub complained of file not found repeatedly, and grub-install failed to install because it "couldn't find" my LVM root volume. /boot/grub/device.map at this point contains just three drives, my USB install disk, and the base hard drives of the machine's RAID array (as hd0, hd1, hd2 respectively). If I add a bogus (hd3) entry pointing at the raid drive, /dev/md126, then update-grub stops complaining "file not found", and even successfully finds the Windows partition. If I then add a bogus (hd4) entry pointing at the dm-crypt partition I mounted, /dev/mapper/dm-6_crypt, then grub-install stops complaining about not finding /dev/mapper/waif-root and claims to have successfully executed. The net result though, is exactly the same --- on reboot I get Welcome to GRUB! error: no such disk. Entering rescue mode... grub rescue> I'm assuming I need some additional magic to make grub assemble the raid array, find the boot partition, decrypt the dm-crypt partition, and open the root volume... Conrad -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org
