Package: mdadm
Version: 3.4-4+b1
Severity: normal
Dear Maintainer,
* What led up to the situation?
Upgraded from Jessie to Stretch
* What exactly did you do (or not do) that was effective (or
ineffective)?
We want to start our mdadm raid arrays manually, so we have no ARRAY lines
in mdadm.conf and we have AUTO -all.
* What was the outcome of this action?
Arrays are not started on udev events (which is good), but they *are*
started on boot (which is bad).
* What outcome did you expect instead?
No array to be automatically started.
What is happening is:
When the /usr/share/initramfs-tools/hooks/mdadm script is run during initrd
creation it notices that we have no ARRAY lines in our mdadm.conf, so it uses
/usr/share/mdadm/mkconf to make a new mdadm.conf which means that all
arrays connected to the machine when the initrd is created will be started
on boot.
As a workaround we have added a dummy ARRAY declaration to our mdadm.conf:
AUTO -all
ARRAY name=unused
And now, although mkinitrd issues many boring warnings about arrays not being
in mdadm.conf it doesn't start all our arrays on boot.
-- Package-specific info:
--- mdadm.conf
DEVICE partitions
CREATE owner=root group=disk mode=0660 auto=yes
HOMEHOST
MAILADDR sta...@olympic.calvaedi.com
AUTO -all
ARRAY name=unused
--- /etc/default/mdadm
AUTOCHECK=true
START_DAEMON=true
DAEMON_OPTIONS="--syslog"
VERBOSE=false
--- /proc/mdstat:
Personalities : [raid1] [raid10] [linear] [multipath] [raid0] [raid6] [raid5]
[raid4]
md125 : active raid1 sdb[2] sdd[3]
3906887360 blocks super 1.2 [2/2] [UU]
bitmap: 0/30 pages [0KB], 65536KB chunk
md126 : active raid1 sdc[2] sde[3]
1953511869 blocks super 1.1 [2/2] [UU]
bitmap: 0/466 pages [0KB], 2048KB chunk
md127 : active raid10 sdz[0] sdi[11] sdq[12] sdj[9] sdt[8] sdk[7] sdu[6] sdl[5]
sdw[4] sdm[3] sdx[2] sdn[1]
429729792 blocks super 1.2 512K chunks 2 near-copies [12/12]
[]
bitmap: 1/4 pages [4KB], 65536KB chunk
unused devices:
--- /proc/partitions:
major minor #blocks name
80 71041024 sda
81 498688 sda1
82 1 sda2
85 70539264 sda5
1101048575 sr0
8 16 3907018584 sdb
8 32 1953514584 sdc
8 48 3907018584 sdd
8 64 1953514584 sde
8 80 976762584 sdf
8 96 143374740 sdg
8 112 71687325 sdh
8 128 71687325 sdi
8 144 71687325 sdj
8 160 71687325 sdk
8 176 71687325 sdl
8 192 71687325 sdm
8 208 71687325 sdn
8 224 143374740 sdo
8 240 62522712 sdp
650 71687325 sdq
65 16 976762584 sdr
65 32 143374740 sds
65 48 71687325 sdt
65 64 71687325 sdu
65 80 62522712 sdv
65 96 71687325 sdw
65 112 71687325 sdx
65 128 143374740 sdy
65 144 71687325 sdz
25307811072 dm-0
2531 23437312 dm-1
2532 15622144 dm-2
25337811072 dm-3
9 127 429729792 md127
2590 258016 md127p1
2591 429471504 md127p2
9 126 1953511869 md126
9 125 3906887360 md125
--- LVM physical volumes:
PV VGFmt Attr PSize PFree
/dev/sda5 arabic-vg lvm2 a-- 67.27g 15.12g
--- mount output
sysfs on /sys type sysfs (rw,nosuid,nodev,noexec,relatime)
proc on /proc type proc (rw,nosuid,nodev,noexec,relatime)
udev on /dev type devtmpfs
(rw,nosuid,relatime,size=12328556k,nr_inodes=3082139,mode=755)
devpts on /dev/pts type devpts
(rw,nosuid,noexec,relatime,gid=5,mode=620,ptmxmode=000)
tmpfs on /run type tmpfs (rw,nosuid,noexec,relatime,size=2468104k,mode=755)
/dev/mapper/arabic--vg-root on / type ext4
(rw,relatime,errors=remount-ro,data=ordered)
securityfs on /sys/kernel/security type securityfs
(rw,nosuid,nodev,noexec,relatime)
tmpfs on /dev/shm type tmpfs (rw,nosuid,nodev)
tmpfs on /run/lock type tmpfs (rw,nosuid,nodev,noexec,relatime,size=5120k)
tmpfs on /sys/fs/cgroup type tmpfs (ro,nosuid,nodev,noexec,mode=755)
cgroup on /sys/fs/cgroup/systemd type cgroup
(rw,nosuid,nodev,noexec,relatime,xattr,release_agent=/lib/systemd/systemd-cgroups-agent,name=systemd)
pstore on /sys/fs/pstore type pstore (rw,nosuid,nodev,noexec,relatime)
cgroup on /sys/fs/cgroup/pids type cgroup (rw,nosuid,nodev,noexec,relatime,pids)
cgroup on /sys/fs/cgroup/memory type cgroup
(rw,nosuid,nodev,noexec,relatime,memory)
cgroup on /sys/fs/cgroup/cpu,cpuacct type cgroup
(rw,nosuid,nodev,noexec,relatime,cpu,cpuacct)
cgroup on /sys/fs/cgroup/freezer type cgroup
(rw,nosuid,nodev,noexec,relatime,freezer)
cgroup on /sys/fs/cgroup/perf_event type cgroup
(rw,nosuid,nodev,noexec,relatime,perf_event)
cgroup on /sys/fs/cgroup/net_cls,net_prio type cgroup
(rw,nosuid,nodev,noexec,relatime,net_cls,net_prio)
cgroup on /sys/fs/cgroup/blkio type cgroup
(rw,nosuid,nodev,noexec,relatime,blkio)
cgroup on
