Public bug reported: As part of the ongoing discussion about dropping alternates [1] I wanted to find out whether it's currently possible at all to install on a RAID with Ubiquity. Turns out it is possible [2], but there are two post- installation steps which are not obvious and should be fixed.
Creating partitions with gparted and building a RAID with mdadm on the live system works well. Ubiquity detects the devices and you can partition /dev/md0 and install on it just fine. The trouble starts because you need to install mdadm into the target system, for which I ran the following steps: * mount /dev/md0p1 /target, chroot /target * apt-get install mdadm; that fails because /etc/resolv.conf is empty (yay resolvconf), so exit chroot, apt-get download mdadm, copy to /target/tmp, chroot again, dpkg -i * that fails because it cannot access /dev etc, so back out of the chroot, bind-mount /dev/, back into the chroot, dpkg --configure -a, get scared by the warnings about not being able to load MD suppport (turns out they are harmless) It would be nice if Ubiquity could install mdadm into the target system together with its other setup if any of the target partitions is /dev/md*. [1] https://lists.ubuntu.com/archives/ubuntu-devel/2012-August/035675.html [2] https://lists.ubuntu.com/archives/ubuntu-devel/2012-August/035680.html ProblemType: Bug DistroRelease: Ubuntu 12.10 Package: ubiquity (not installed) ProcVersionSignature: Ubuntu 3.5.0-12.12-generic 3.5.2 Uname: Linux 3.5.0-12-generic x86_64 ApportVersion: 2.5.1-0ubuntu2 Architecture: amd64 Date: Wed Aug 29 07:13:52 2012 EcryptfsInUse: Yes InstallCmdLine: noprompt cdrom-detect/try-usb=true file=/cdrom/preseed/ubuntu.seed boot=casper initrd=/casper/initrd.lz quiet splash -- debian-installer/language=de keyboard-configuration/layoutcode=us InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Alpha amd64 (20120627) ProcEnviron: TERM=xterm PATH=(custom, user) LANG=de_DE.UTF-8 SHELL=/bin/bash SourcePackage: ubiquity UpgradeStatus: No upgrade log present (probably fresh install) ** Affects: ubiquity (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug quantal running-unity ubiquity-2.11.7 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1043094 Title: Install mdadm into target if installing on a RAID To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubiquity/+bug/1043094/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
