Hi, I am on Arch Linux. I have a 4 device RAID 5 of which 1 device is no longer working. I am unable to assemble the raid. The active devices are:/dev/sda2, /dev/sdb1, /dev/sdc2 The errors I get are like: # mdadm -Avf /dev/md127 mdadm: looking for devices for /dev/md127 mdadm: no RAID superblock on /dev/dm-6 mdadm: no RAID superblock on /dev/dm-5 mdadm: no RAID superblock on /dev/dm-4 mdadm: no RAID superblock on /dev/dm-3 mdadm: no RAID superblock on /dev/dm-2 mdadm: no RAID superblock on /dev/dm-1 mdadm: no RAID superblock on /dev/dm-0 mdadm: /dev/sdc2 is busy - skipping mdadm: no RAID superblock on /dev/sdc1 mdadm: no RAID superblock on /dev/sdc mdadm: /dev/sdb1 is busy - skipping mdadm: no RAID superblock on /dev/sdb mdadm: no RAID superblock on /dev/sda3 mdadm: /dev/sda2 is busy - skipping mdadm: no RAID superblock on /dev/sda1 mdadm: no RAID superblock on /dev/sda I would like to know what is making these devices busy. I do not see any indication from lsof or from the device mapper that these devices are being used. I have even changed the initramfs and the fstab etc. to prevent this array from being started at boot time - still unable to assemble it. This array contains my /home and I do not know how to recover it. Help please ... Thanks, Sachin -- To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html