Comment 23 for bug 942106

I have had similar failure on all versions of precise on my Asus M4A785 with AMD X4 9850 with one drive on SiI 3132 Serial ATA Raid II Controller Boot from IDE drive and 6 SATA drives in raid5. Every boot failed with initramfs stop into busybox. Installing precise.proposed version of mdadm version 3.2.5-1ubuntu0.1 mentioned above fixed the problem with two successful boots with no problem.

mark@server7:~$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 12.04 LTS
Release: 12.04
Codename: precise

mark@server7:~$ mdadm -V
mdadm - v3.2.5 - 18th May 2012

mark@server7:~$ cat /proc/mdstat
Personalities : [linear] [multipath] [raid0] [raid1] [raid6] [raid5] [raid4] [raid10]
md0 : active raid5 sdk[2] sdi[0] sdj[1] sdd[5] sdc[6](S) sdb[3]
      7814051840 blocks super 1.2 level 5, 512k chunk, algorithm 2 [5/5] [UUUUU]

unused devices: <none>

Please ship it!