Bug#684293: installation-reports: Installer hangs at iso-scan step while mounting an extended partition
Package: installation-reports
Severity: important
The Wheezy hd-media installer (daily from 08-08) hangs at the
step Searching drives for an installer ISO image,
while mounting the extended partition /dev/sda4.
This partition should never be mounted.
The ouptut of ps w is given below:
1291 root 5728 S udpkg --configure --force-configure iso-scan
1292 root 3980 S {iso-scan.postin} /bin/sh /var/lib/dpkg/info/iso-
scan.postinst configure
1379 root 8432 S udevd --daemon --resolve-names=never
1380 root 8264 S udevd --daemon --resolve-names=never
1898 root 0 SW [jbd2/sda3-8]
1899 root 0 SW [ext4-dio-unwrit]
1904 root 0 SW [loop0]
1941 root 0 SW [loop1]
1960 root 3980 R mount -t auto -o ro /dev/sda4 /hd-media
1969 root 3980 R ps w
As a workaround the process 1291 can be killed to continue with the
installation.
The hang is caused by the script iso-scan.postinst (package: iso-scan), where
the extended partition is not omitted from the device list.
This bug has the same cause as the mountmedia bug #683849.
The following untested patch should solve this issue:
--- a/iso-scan-1.40/debian/iso-scan.postinst
+++ b/iso-scan-1.40/debian/iso-scan.postinst
@@ -274,7 +274,16 @@ while :; do
mkdir /cdrom 2/dev/null || true
mkdir /hd-media 2/dev/null || true
- DEVS=$(list-devices partition; list-devices disk; list-devices
maybe-usb-floppy)
+ tmpdevs=$(list-devices partition; list-devices disk;
list-devices maybe-usb-floppy)
+ DEVS=
+ # Remove extended partitions
+ for tmpdev in $tmpdevs; do
+ PARTITION_TYPE=$(blkid -p -s PART_ENTRY_TYPE $tmpdev |
cut -d ' ' -f 2 | cut -d \ -f 2)
+ if [ $PARTITION_TYPE != 0x5 ] [
$PARTITION_TYPE != 0xf ]; then
+ DEVS=${DEVS:+$DEVS\\n}$tmpdev
+ fi
+ done
+
log devices found: '$DEVS'
STATE=10
continue
-- Package-specific info:
Boot method: USB disk
Image version: Daily installer from 08-08
Date: 08-08-2012
Machine: Lenovo Thinkpad T61p
Partitions: df -Tl will do; the raw partition table is preferred
Base System Installation Checklist:
[O] = OK, [E] = Error (please elaborate below), [ ] = didn't try it
Initial boot: [O ]
Detect network card: []
Configure network: [ ]
Detect CD: [ ]
Load installer modules: [ ]
Detect hard drives: [ ]
Partition hard drives: [ ]
Install base system: [ ]
Clock/timezone setup: [ ]
User/password setup: [ ]
Install tasks: [ ]
Install boot loader: [ ]
Overall install: [ ]
Comments/Problems:
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Bug#684309: installation-reports: Wheezy installer hangs at partition hard drives
Package: installation-reports
Severity: important
The Wheezy installation hangs while loading the
partitioner (hd-media daily from 08-08).
The ps w output:
6865 root 6304 S udpkg --configure --force-configure partman-base
6866 root 4420 S {partman-base.po} /bin/sh
/var/lib/dpkg/info/partman-base.postinst configure
6867 root 4556 S {partman} /bin/sh /bin/partman
7101 root 0 SW [jfsIO]
7102 root 0 SW [jfsCommit]
7103 root 0 SW [jfsCommit]
7104 root 0 SW [jfsSync]
7118 root 0 SW [xfs_mru_cache]
7119 root 0 SW [xfslogd]
7120 root 0 SW [xfsdatad]
7121 root 0 SW [xfsconvertd]
7138 root 4556 S {25md-devices} /bin/sh
/lib/partman/init.d/25md-devices
7142 root 0 SW [md]
7144 root 6156 S log-output -t md-devices --pass-stdout mdadm
--examine --scan --config=partitions
7145 root 4600 D mdadm --examine --scan --config=partitions
7151 root 4424 R ps w
The mdadm process hangs, which also occured in the bug report #683849.
I could continue with the installation after adding exit 0 at the
beginning of the file /lib/partman/init.d/25md-devices
(package: partman-md).
On the same machine the Squeeze mdadm command
exits successfully:
# mdadm --examine --scan --config=partitions
#
# cat /proc/mdstat
Personalities : [linear] [multipath] [raid0] [raid1] [raid6] [raid5] [raid4]
[raid10]
unused devices: none
-- Package-specific info:
Boot method: USB disk
Image version: Daily installer from 08-08-2012
Date: 08-08-2012
Machine: Lenovo Thinkpad T61p
Partitions:
fdisk -lu /dev/sda
Device Boot Start End Blocks Id System
/dev/sda1 * 2048 206847 102400 7 HPFS/NTFS
Partition 1 does not end on cylinder boundary.
/dev/sda2 206848 262320127 131056640 7 HPFS/NTFS
Partition 2 does not end on cylinder boundary.
/dev/sda3 262320128 496695295 117187584 83 Linux
Partition 3 does not end on cylinder boundary.
/dev/sda4 496697342 976771071 240036865 5 Extended
Partition 4 does not end on cylinder boundary.
/dev/sda5 496697344 527945727 15624192 82 Linux swap / Solaris
/dev/sda6 527947776 762320895 117186560 83 Linux
/dev/sda7 762322944 976771071 107224064 83 Linux
Base System Installation Checklist:
[O] = OK, [E] = Error (please elaborate below), [ ] = didn't try it
Initial boot: [O ]
Detect network card: [O ]
Configure network: [O ]
Detect CD: [ ]
Load installer modules: [O ]
Detect hard drives: [ O]
Partition hard drives: [ E]
Install base system: [ ]
Clock/timezone setup: [ ]
User/password setup: [ ]
Install tasks: [ ]
Install boot loader: [ ]
Overall install: [ ]
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Bug#684293: root cause of mount hang in installer [kernel bug]
After some googling I found out that the root cause of the recent mount problems with extended partitions (maybe also mounting disks like sda) are related to the infinite loop kernel bug in __getblk_slow. (see the explanation: https://patchwork.kernel.org/patch/1189121/) The affected debian kernels should get fixed with the patch offered in kernel 3.2.24 (http://lwn.net/Articles/508225/). -- Michael Hofbauer -- To UNSUBSCRIBE, email to debian-boot-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/1344454480.77013.yahoomail...@web141104.mail.bf1.yahoo.com
