*** This bug is a duplicate of bug 872220 ***
https://bugs.launchpad.net/bugs/872220
Sergey, thanks for the bug report. I understand that this seems too
harsh, but we are being perhaps overly careful not to boot up a system
with a broken array unless the user explicitly allows it.
Answering the debconf question to boot degraded will solve this issue
for you, as it trades the security of never booting automatically while
degraded for the convenience of always having the system boot up.
Also I believe this is a duplicate of bug #872220
** This bug has been marked a duplicate of bug 872220
Fails to boot when there's problems with softraid
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https://bugs.launchpad.net/bugs/917520
Title:
Regression: mdadm drops to initramfs shell on unregistered array
Status in “mdadm” package in Ubuntu:
New
Bug description:
We run a production server with software RAID5. After upgrade from
lucid to oneiric (clean), the server didn't boot.
This file [1] is the source of the regression. It makes a system drop
to an initramfs shell on boot, when there is a failure a non-critical
RAID. At the moment it is not event registered to
/etc/mdadm/mdadm.conf, but it prevents system from booting.
The file assumes that any single array failure should prevent system
from booting. I think this assumption is too strong. RAID0 is good for
swap and cache storage. Hot-swapping a failed drive with losing cache
is perfectly legitimate. Failed swap may require a cold reboot, but it
is still possible.
In my case, some drives are attached to a backplane, others are
connect to the motherboard. The latter are seen in second, while the
former take a dozen to initialize. The root device gets ready in
between, then [1] kicks in and forcefully tries to start in a degraded
state each array that is not yet ready. The system drops to initramfs
shell.
The complete solution will be to provide BOOT_DEGRADED on a per array
basis. For now, please remove this file or provide an option to
disable it.
1. /usr/share/initramfs-tools/scripts/local-premount/mdadm
ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: mdadm 3.1.4-1+8efb9d1ubuntu6
ProcVersionSignature: Ubuntu 3.0.0-14.23-server 3.0.9
Uname: Linux 3.0.0-14-server x86_64
ApportVersion: 1.23-0ubuntu4
Architecture: amd64
CurrentDmesg:
[ 297.542335] init: tty1 main process ended, respawning
[ 310.400047] usb 5-2: USB disconnect, device number 2
Date: Tue Jan 17 10:45:48 2012
InstallationMedia: Ubuntu-Server 11.10 "Oneiric Ocelot" - Release amd64 (20111011)
MDadmExamine.dev.sda: Error: command ['/sbin/mdadm', '-E', '/dev/sda'] failed with exit code 1: mdadm: cannot open /dev/sda: Permission denied
MDadmExamine.dev.sda1: Error: command ['/sbin/mdadm', '-E', '/dev/sda1'] failed with exit code 1: mdadm: cannot open /dev/sda1: Permission denied
MDadmExamine.dev.sda2: Error: command ['/sbin/mdadm', '-E', '/dev/sda2'] failed with exit code 1: mdadm: cannot open /dev/sda2: Permission denied
MDadmExamine.dev.sda3: Error: command ['/sbin/mdadm', '-E', '/dev/sda3'] failed with exit code 1: mdadm: cannot open /dev/sda3: Permission denied
MDadmExamine.dev.sdb: Error: command ['/sbin/mdadm', '-E', '/dev/sdb'] failed with exit code 1: mdadm: cannot open /dev/sdb: Permission denied
MDadmExamine.dev.sdb1: Error: command ['/sbin/mdadm', '-E', '/dev/sdb1'] failed with exit code 1: mdadm: cannot open /dev/sdb1: Permission denied
MDadmExamine.dev.sdb2: Error: command ['/sbin/mdadm', '-E', '/dev/sdb2'] failed with exit code 1: mdadm: cannot open /dev/sdb2: Permission denied
MDadmExamine.dev.sdb3: Error: command ['/sbin/mdadm', '-E', '/dev/sdb3'] failed with exit code 1: mdadm: cannot open /dev/sdb3: Permission denied
MDadmExamine.dev.sdc: Error: command ['/sbin/mdadm', '-E', '/dev/sdc'] failed with exit code 1: mdadm: cannot open /dev/sdc: Permission denied
MDadmExamine.dev.sdc1: Error: command ['/sbin/mdadm', '-E', '/dev/sdc1'] failed with exit code 1: mdadm: cannot open /dev/sdc1: Permission denied
MDadmExamine.dev.sdc2: Error: command ['/sbin/mdadm', '-E', '/dev/sdc2'] failed with exit code 1: mdadm: cannot open /dev/sdc2: Permission denied
MDadmExamine.dev.sdc3: Error: command ['/sbin/mdadm', '-E', '/dev/sdc3'] failed with exit code 1: mdadm: cannot open /dev/sdc3: Permission denied
MDadmExamine.dev.sdd: Error: command ['/sbin/mdadm', '-E', '/dev/sdd'] failed with exit code 1: mdadm: cannot open /dev/sdd: Permission denied
MDadmExamine.dev.sdd1: Error: command ['/sbin/mdadm', '-E', '/dev/sdd1'] failed with exit code 1: mdadm: cannot open /dev/sdd1: Permission denied
MDadmExamine.dev.sdd2: Error: command ['/sbin/mdadm', '-E', '/dev/sdd2'] failed with exit code 1: mdadm: cannot open /dev/sdd2: Permission denied
MDadmExamine.dev.sdd3: Error: command ['/sbin/mdadm', '-E', '/dev/sdd3'] failed with exit code 1: mdadm: cannot open /dev/sdd3: Permission denied
MDadmExamine.dev.sde: Error: command ['/sbin/mdadm', '-E', '/dev/sde'] failed with exit code 1: mdadm: cannot open /dev/sde: Permission denied
MDadmExamine.dev.sde1: Error: command ['/sbin/mdadm', '-E', '/dev/sde1'] failed with exit code 1: mdadm: cannot open /dev/sde1: Permission denied
MDadmExamine.dev.sde2: Error: command ['/sbin/mdadm', '-E', '/dev/sde2'] failed with exit code 1: mdadm: cannot open /dev/sde2: Permission denied
MDadmExamine.dev.sde3: Error: command ['/sbin/mdadm', '-E', '/dev/sde3'] failed with exit code 1: mdadm: cannot open /dev/sde3: Permission denied
MDadmExamine.dev.sdf: Error: command ['/sbin/mdadm', '-E', '/dev/sdf'] failed with exit code 1: mdadm: cannot open /dev/sdf: Permission denied
MDadmExamine.dev.sdf1: Error: command ['/sbin/mdadm', '-E', '/dev/sdf1'] failed with exit code 1: mdadm: cannot open /dev/sdf1: Permission denied
MDadmExamine.dev.sdf2: Error: command ['/sbin/mdadm', '-E', '/dev/sdf2'] failed with exit code 1: mdadm: cannot open /dev/sdf2: Permission denied
MDadmExamine.dev.sdf3: Error: command ['/sbin/mdadm', '-E', '/dev/sdf3'] failed with exit code 1: mdadm: cannot open /dev/sdf3: Permission denied
MDadmExamine.dev.sdg: Error: command ['/sbin/mdadm', '-E', '/dev/sdg'] failed with exit code 1: mdadm: cannot open /dev/sdg: Permission denied
MDadmExamine.dev.sdg1: Error: command ['/sbin/mdadm', '-E', '/dev/sdg1'] failed with exit code 1: mdadm: cannot open /dev/sdg1: Permission denied
MDadmExamine.dev.sdg2: Error: command ['/sbin/mdadm', '-E', '/dev/sdg2'] failed with exit code 1: mdadm: cannot open /dev/sdg2: Permission denied
MDadmExamine.dev.sdg3: Error: command ['/sbin/mdadm', '-E', '/dev/sdg3'] failed with exit code 1: mdadm: cannot open /dev/sdg3: Permission denied
MachineType: Supermicro X7DCL
ProcEnviron:
PATH=(custom, user)
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.0.0-14-server root=UUID=92036d1d-e7c5-4249-a721-ae72f6ca3a65 ro rootdelay=30
SourcePackage: mdadm
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 01/12/2009
dmi.bios.vendor: Phoenix Technologies LTD
dmi.bios.version: 1.1a
dmi.board.name: X7DCL
dmi.board.vendor: Supermicro
dmi.board.version: PCB Version
dmi.chassis.type: 1
dmi.chassis.vendor: Supermicro
dmi.chassis.version: 0123456789
dmi.modalias: dmi:bvnPhoenixTechnologiesLTD:bvr1.1a:bd01/12/2009:svnSupermicro:pnX7DCL:pvr0123456789:rvnSupermicro:rnX7DCL:rvrPCBVersion:cvnSupermicro:ct1:cvr0123456789:
dmi.product.name: X7DCL
dmi.product.version: 0123456789
dmi.sys.vendor: Supermicro
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