Sorry folks, being tooo fast. This is not working if all discs are present, now i understand the include of MD_DEGRADED_ARGS
my new workaround is to add a bootmenue entry in grub title Ubuntu, kernel 2.6.20-16-generic (raid defect) root (hd0,1) kernel /boot/vmlinuz-2.6.20-16-generic root=/dev/md1 ro raid_degraded initrd /boot/initrd.img-2.6.20-16-generic and /etc/initramfs-tools/scripts/init-premount/raid_degraded #!/bin/sh set -eu PREREQ="udev" prereqs() { echo "$PREREQ" } case ${1:-} in prereqs) prereqs exit 0 ;; *) . /scripts/functions ;; esac if [ -e /scripts/local-top/md ]; then log_warning_msg "old md initialisation script found, getting out of its way..." exit 1 fi MDADM=$(command -v mdadm) [ -x $MDADM ] || exit 0 if grep raid_degraded /proc/cmdline 2>/dev/null; then echo "MD_DEGRADED_ARGS=' '" >> /conf/md.conf fi exit 0 now if a disc is defect and i will to start only with one disc i choose raid defect from bootmenu -- cannot boot raid1 with only one disk https://bugs.launchpad.net/bugs/120375 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs