Package: mdadm
Version: 3.4-2
Severity: important
With 3.4-2 my lvm on partitioned md system has stopped initializing
correctly. For starters when upgrading from 3.4-1 to 3.4-2 I get
this:
W: mdadm: the array /dev/md/d0 with UUID 4c4bcb71:267c92fc:fe08e7ef:27569e0b
W: mdadm: is currently active, but it is not listed in mdadm.conf. if
W: mdadm: it is needed for boot, then YOUR SYSTEM IS NOW UNBOOTABLE!
W: mdadm: please inspect the output of /usr/share/mdadm/mkconf, compare
W: mdadm: it to /etc/mdadm/mdadm.conf, and make the necessary changes.
This is thanks to the change of:
if ! grep -qi "uuid=$uuid" $DESTMDADMCONF; then
to
if ! grep -q "UUID=$uuid" $DESTMDADMCONF; then
The manpage uses uuid=, the examples use both uuid= and UUID=, and the
uuid itself had better be treated as case-insensitive... so if you ask
me, it's cleaner and more correct, to just do:
uuid=`echo "$params" | grep -oi ' uuid=[0-9a-f:]\+'`
if ! grep -qi "$uuid" $DESTMDADMCONF; then
...
That said, this isn't why my system stopped booting after updating to
3.4-2, it's just an irritating distraction.
AFAICT, the new initramfs-tools scripts simply never assemble
any arrays. The old local-top/mdadm script ran either
$MDADM --assemble --scan --run --auto=yes${extra_args:+ $extra_args}
or $MDADM --assemble --scan --run --auto=yes $dev
depending on $MD_DEVS.
If run I mdadm --assemble --scan manually after the initramfs has
dumped me to a shell, and then keep kicking various lvm scripts until
I get my root device to show up, I can proceed, but this new package
strikes me as very, very broken.
Here's some of the blather from /usr/share/bug/mdadm/script but let me
prefix this with, I've pruned out detail that wasn't germane, and my
topology is lvm on top of md raid1 on a traditional sysvinit system.
--- mdadm.conf
DEVICE /dev/sd[ab]
HOMEHOST <system>
MAILADDR root
ARRAY /dev/md/d0 metadata=1.0 UUID=4c4bcb71:267c92fc:fe08e7ef:27569e0b
name=cucamonga:d0
--- /etc/default/mdadm
AUTOCHECK=true
START_DAEMON=true
DAEMON_OPTIONS="--syslog"
VERBOSE=false
--- /proc/mdstat:
Personalities : [raid1]
md_d0 : active raid1 sda[0] sdb[1]
976762448 blocks super 1.0 [2/2] [UU]
unused devices: <none>
--- /proc/partitions:
major minor #blocks name
8 0 976762584 sda
8 16 976762584 sdb
253 0 976762448 md_d0
253 1 968373248 md_d0p1
253 2 8388176 md_d0p2
--- LVM physical volumes:
File descriptor 3 (/dev/pts/5) leaked on pvs invocation. Parent PID 16632:
/bin/bash
PV VG Fmt Attr PSize PFree
/dev/md_d0p1 S lvm2 a-- 923.51g 545.51g
--- /proc/modules:
dm_crypt 24576 1 - Live 0xffffffffa0222000
raid1 32768 1 - Live 0xffffffffa0016000
md_mod 98304 4 raid1, Live 0xffffffffa0021000
dm_mod 86016 26 dm_crypt, Live 0xffffffffa0000000
--- volume detail:
/dev/sda:
Magic : a92b4efc
Version : 1.0
Feature Map : 0x0
Array UUID : 4c4bcb71:267c92fc:fe08e7ef:27569e0b
Name : cucamonga:d0 (local to host cucamonga)
Creation Time : Fri Feb 11 07:29:10 2011
Raid Level : raid1
Raid Devices : 2
Avail Dev Size : 1953524896 (931.51 GiB 1000.20 GB)
Array Size : 976762448 (931.51 GiB 1000.20 GB)
Super Offset : 1953525152 sectors
Unused Space : before=0 sectors, after=256 sectors
State : clean
Device UUID : 03d87172:57951a8c:b9b40189:051ed01b
Update Time : Mon Jul 11 09:27:06 2016
Checksum : b10e71e7 - correct
Events : 2479
Device Role : Active device 0
Array State : AA ('A' == active, '.' == missing, 'R' == replacing)
--
/dev/sdb:
Magic : a92b4efc
Version : 1.0
Feature Map : 0x0
Array UUID : 4c4bcb71:267c92fc:fe08e7ef:27569e0b
Name : cucamonga:d0 (local to host cucamonga)
Creation Time : Fri Feb 11 07:29:10 2011
Raid Level : raid1
Raid Devices : 2
Avail Dev Size : 1953524896 (931.51 GiB 1000.20 GB)
Array Size : 976762448 (931.51 GiB 1000.20 GB)
Super Offset : 1953525152 sectors
Unused Space : before=0 sectors, after=256 sectors
State : clean
Device UUID : dcee8016:570d79ee:40fd87f0:26c35131
Update Time : Mon Jul 11 09:27:06 2016
Checksum : 3483ee6a - correct
Events : 2479
Device Role : Active device 1
Array State : AA ('A' == active, '.' == missing, 'R' == replacing)
--- /proc/cmdline
BOOT_IMAGE=/boot/vmlinuz-4.6.1 root=/dev/mapper/S-root ro
rng-core.default_quality=512
--- udev:
ii udev 230-7 amd64 /dev/ and hotplug management daem
aa83f41de49462d05e446cfc5e14e74b /lib/udev/rules.d/63-md-raid-arrays.rules
5de7d0b70cd948d00bb38ca75ad5f288 /lib/udev/rules.d/64-md-raid-assembly.rules
--- /dev:
brw-rw---- 1 root disk 253, 0 Jul 11 05:47 /dev/md_d0
brw-rw---- 1 root disk 253, 1 Jul 11 05:47 /dev/md_d0p1
brw-rw---- 1 root disk 253, 2 Jul 11 05:47 /dev/md_d0p2
--
Jamie Heilman http://audible.transient.net/~jamie/
