+ Thomas -Balu- Walter <tw@itreff.de> [18.06.02 11:25]: [root=/dev/md1 not working] Update - I am getting closer :) One reason why it did not work here was that I had to create the initrd in chroot (the mounted md-devices the original system got copied to), this was it got /dev/md*, raidmodules and other things needed to get raid running into the initrd. I did not even have to change the partition type to autodetect, since raidstart and such are available and get started in the created initrd. (master = first ide controller, secondary = second IDE controller, no master/slave hdd) But now I am stuck and booting while simulating a broken secondary IDE controller. If I take off the master cable (powered off of course) I can boot into the raid - and get the following messages: md: could not lock [dev 03:03] sero-size? Marking faulty md: could not import [dev 03:03], trying to mount raid nevertheless md: autorun ... former device [dev 03:03] is unavailable, removing from array ... So it just ignores hda and boots into the remaining mirrored hdc. But after rebuilding the raidset and removing the cable to the secondary controller i get: ide0 on 0x1f0-0x1f7, 0x 3f6 on IRQ14 md: could not lock [dev 16:03] sero-size? Marking faulty md: could not import [dev 16:03] md: autostart [dev 16:03] failed /dev/md1: invalid argument ... Kernel panic, because of missing root. To fix I've tried to make the partitions raid-autodetect, created a new initrd (because the old one still had "failed-disk" in it) and finally added " disk=/dev/hda bios=0x80 disk=/dev/hdc bios=0x80 " to lilo.conf. with no luck - Why does it not "try to mount raid nevertheless" this way? Balu - To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html