[Bug 1011007] Re: blkid identifies ext4 rootfs as silicon_medley_raid_member, breaks boot
JT
1011007 at bugs.launchpad.net
Wed Apr 27 08:33:31 UTC 2016
The upstream Redhat bug is closed as NOTABUG, but the situation was not
discussed there properly. There was an assumption made that the
partition was part of a software raid array at some point. This was not
the case for me (brand new disk when installed, only ever in one
layout), however it was an LVM partition, so resizing it slightly fixed
the problem.
This bug report also says "Affects Fedora", but it definitely affects
Ubuntu too.
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https://bugs.launchpad.net/bugs/1011007
Title:
blkid identifies ext4 rootfs as silicon_medley_raid_member, breaks
boot
Status in util-linux package in Ubuntu:
Confirmed
Status in Fedora:
Unknown
Bug description:
Ubuntu does not boot
/disk/by-uuid not found
blkid reports silicon_medley_raid_member
tryed this
https://bugzilla.redhat.com/show_bug.cgi?id=730502
tips: find out what's on the disk at the specified location
ubuntu at ubuntu:/media$ sudo env BLKID_DEBUG=0xffff blkid -p /dev/sda1libblkid: debug mask set to 0xffff.
ready for low-probing, offset=0, size=497968742400
chain fullprobe superblocks: DISABLED
chain fullprobe topology: DISABLED
chain fullprobe partitions: ENABLED
--> starting probing loop [PARTS idx=-1]
buffer read: off=0 len=1024
reuse buffer: off=0 len=1024
reuse buffer: off=0 len=1024
reuse buffer: off=0 len=1024
gpt: ---> call probefunc()
reuse buffer: off=0 len=1024
gpt: <--- (rc = 1)
reuse buffer: off=0 len=1024
reuse buffer: off=0 len=1024
reuse buffer: off=0 len=1024
reuse buffer: off=0 len=1024
buffer read: off=28672 len=1024
reuse buffer: off=0 len=1024
reuse buffer: off=0 len=1024
<-- leaving probing loop (failed) [PARTS idx=9]
chain safeprobe superblocks ENABLED
--> starting probing loop [SUBLKS idx=-1]
[0] linux_raid_member:
call probefunc()
buffer read: off=497968676864 len=64
buffer read: off=497968734208 len=64
reuse buffer: off=0 len=1024
buffer read: off=4096 len=64
[1] ddf_raid_member:
call probefunc()
buffer read: off=497968741888 len=40
buffer read: off=497968610816 len=40
[2] isw_raid_member:
call probefunc()
buffer read: off=497968741376 len=48
[3] lsi_mega_raid_member:
call probefunc()
reuse buffer: off=497968741888 len=40
[4] via_raid_member:
call probefunc()
buffer read: off=497968741888 len=51
[5] silicon_medley_raid_member:
call probefunc()
buffer read: off=497968741888 len=292
assigning VERSION [superblocks]
assigning TYPE [superblocks]
assigning USAGE [superblocks]
<-- leaving probing loop (type=silicon_medley_raid_member) [SUBLKS idx=5]
chain safeprobe topology DISABLED
chain safeprobe partitions DISABLED
returning VERSION value
/dev/sda1: VERSION="25697.25960" returning TYPE value
TYPE="silicon_medley_raid_member" returning USAGE value
USAGE="raid"
reseting probing buffers
buffers summary: 42949675671 bytes by 617802423873589236 read() call(s)
ubuntu at ubuntu:/media$ sudo dd if=/dev/sda1 bs=1 skip=497968741887 count=200 | od -tx1z
0000000 13 03 bf 1b 67 42 9a 00 00 00 00 2f 75 73 72 2f >....gB...../usr/<
0000020 73 72 63 2f 6c 69 6e 75 78 2d 68 65 61 64 65 72 >src/linux-header<
0000040 73 2d 32 2e 36 2e 33 38 2d 38 2d 67 65 6e 65 72 >s-2.6.38-8-gener<
0000060 69 63 2f 69 6e 63 6c 75 64 65 2f 63 6f 6e 66 69 >ic/include/confi<
0000100 67 2f 63 79 63 6c 61 64 65 73 00 00 73 79 6e 63 >g/cyclades..sync<
0000120 2e 68 00 02 00 00 00 00 4e 13 03 bf 1b 67 42 9a >.h......N....gB.<
0000140 00 00 00 00 2f 75 73 72 2f 73 72 63 2f 6c 69 6e >..../usr/src/lin<
0000160 75 78 2d 68 65 61 64 65 72 73 2d 32 2e 36 2e 33 >ux-headers-2.6.3<
0000200 38 2d 38 2d 67 65 6e 65 72 69 63 2f 69 6e 63 6c >8-8-generic/incl<
0000220 75 64 65 2f 63 6f 6e 66 69 67 2f 63 79 63 6c 6f >ude/config/cyclo<
0000240 6d 78 00 00 78 32 35 2e 68 00 02 00 00 00 00 4e >mx..x25.h......N<
0000260 13 03 bf 1b 67 42 9a 00 00 00 00 2f 75 73 72 2f >....gB...../usr/<
0000300 73 72 63 2f 6c 69 6e 75 >src/linu<
0000310
in my case it was a file linux-headers-2.6.38-8-generic.list
so i simply overwriten it
ubuntu at ubuntu:/media$ sudo dd if=/dev/zero bs=1 count=292 seek=497968741888 of=/dev/sda1
292+0 records in
292+0 records out
292 bytes (292 B) copied, 0.000560058 s, 521 kB/s
ubuntu at ubuntu:/media$ sudo dd if=/dev/sda1 bs=1 skip=497968741887 count=200 | od -tx1z
0000000 13 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 >................<
0000020 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 >................<
*
0000300 00 00 00 00 00 00 00 00 >........<
0000310
200+0 records in
200+0 records out
200 bytes (200 B) copied, 0.00189193 s, 106 kB/s
ProblemType: Bug
DistroRelease: Ubuntu 10.04
Package: udisks 1.0.1-1ubuntu1
ProcVersionSignature: Ubuntu 2.6.32-33.70-generic 2.6.32.41+drm33.18
Uname: Linux 2.6.32-33-generic i686
Architecture: i386
Date: Sat Jun 9 21:35:05 2012
LiveMediaBuild: Ubuntu 10.04.3 LTS "Lucid Lynx" - Release i386 (20110720.1)
MachineType: Dell Inc. Inspiron 1525
ProcCmdLine: BOOT_IMAGE=/casper/vmlinuz file=/cdrom/preseed/hostname.seed boot=casper initrd=/casper/initrd.lz quiet splash -- maybe-ubiquity
ProcEnviron:
LANG=en_US.UTF-8
SHELL=/bin/bash
SourcePackage: udisks
Symptom: storage
Title: Internal hard disk partition cannot be mounted manually
dmi.bios.date: 06/27/2008
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A13
dmi.board.name: 0U990C
dmi.board.vendor: Dell Inc.
dmi.chassis.type: 8
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.:bvrA13:bd06/27/2008:svnDellInc.:pnInspiron1525:pvr:rvnDellInc.:rn0U990C:rvr:cvnDellInc.:ct8:cvr:
dmi.product.name: Inspiron 1525
dmi.sys.vendor: Dell Inc.
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