[Bug 1011007] Re: blkid identifies ext4 rootfs as silicon_medley_raid_member, breaks boot
Malte S. Stretz
1011007 at bugs.launchpad.net
Sun Nov 25 17:06:03 UTC 2012
Since this was a LVM device which was misidentified, I fixed it without
fiddling with the file system by extending the device slightly:
root at Otherland:~# lvextend -L +512B /dev/mapper/hd-sys
Rounding up size to full physical extent 4.00 MiB
Extending logical volume sys to 13.18 GiB
Logical volume sys successfully resized
root at Otherland:~# blkid -p /dev/mapper/hd-sys
/dev/mapper/hd-sys: LABEL="root" UUID="55c1f04f-4e15-48e4-9f21-8f71657d0682" VERSION="1.0" TYPE="ext4" USAGE="filesystem"
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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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