Package: mdadm Version: 2.6.7.2-3 Severity: important I used mdadm --detail --scan >> /etc/mdadm/mdadm.conf before rebooting to make sure everything came back as configured. After rebooting I had two md devices again, but both were auto-read-only and one was pointing to an old device that shouldn't have been active. Every action I took with mdadm was prefixed with:
mdadm: metadata format 00.90 unknown, ignored. mdadm: metadata format 00.90 unknown, ignored. After some heart pounding, hair pulling and searching (ignoring any advice to zero the superblock) I came across a post that suggested the parsing of metadata=00.90 was at fault. Sure enough, I changed it to metadata=0.90 and everything's good again. http://ubuntuforums.org/showthread.php?p=6345457#post6345457 After getting this sorted out I checked around further and found that mdadm -Ds was the generally recommended way to add those settings, if one uses a mdadm.conf file (bug 569359) and they format the metadata parameter with 00.90 just like all other mdadm output, but for some reason assemble hates them. I also noted that the /usr/share/mdadm/mkconf tool doesn't include the metadata parameter. I see there is suppose to be a patch that is hopefully in the version of mdadm for Squeeze already. http://neil.brown.name/git?p=mdadm;a=commit;h=d7ee65c960fa8a6886df7416307f57545ddc4460 -- Package-specific info: -- System Information: Debian Release: 5.0.7 APT prefers stable APT policy: (500, 'stable') Architecture: i386 (i686) Kernel: Linux 2.6.26-2-686 (SMP w/4 CPU cores) Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8) Shell: /bin/sh linked to /bin/bash Versions of packages mdadm depends on: ii debconf 1.5.24 Debian configuration management sy ii libc6 2.7-18lenny6 GNU C Library: Shared libraries ii lsb-base 3.2-20 Linux Standard Base 3.2 init scrip ii makedev 2.3.1-88 creates device files in /dev ii udev 0.125-7+lenny3 /dev/ and hotplug management daemo Versions of packages mdadm recommends: ii module-init-tools 3.4-1 tools for managing Linux kernel mo ii postfix [mail-transport-agent 2.5.5-1.1 High-performance mail transport ag mdadm suggests no packages. -- debconf information: * mdadm/autostart: true mdadm/mail_to: root mdadm/initrdstart_msg_errmd: * mdadm/initrdstart: all mdadm/initrdstart_msg_errconf: mdadm/initrdstart_notinconf: false mdadm/initrdstart_msg_errexist: mdadm/initrdstart_msg_intro: mdadm/autocheck: true mdadm/initrdstart_msg_errblock: mdadm/start_daemon: true -- Jacob
