[Parted-maintainers] Bug#247174: marked as done (Doesn't find LVM2 devices])
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Date: Mon, 3 May 2004 18:48:27 +0100
From: Martin Michlmayr <tbm@cyrius.com>
To: submit@bugs.debian.org
Subject: Doesn't find LVM2 devices]
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Package: parted
Version: 1.6.9-2
I wanted to add LVM2 support for d-i, but my problem is that
parted_devices cannot see the LVM2 devices... it can see LVM1 devices
just fine. Sven, do you think you can look into this problem soon?
Maybe it's because lvm2 puts stuff in /dev/mapper/<vg>-<lv> rather
than as /dev/<vg>/<lv> (but the latter is a symlink to the former).
Or maybe you just need to add another magic number?
You can reproduce this on a normal system with LVM2.
/lib/partman #=20
/lib/partman #=20
/lib/partman #=20
~ #=20
~ # parted_devices
/dev/ide/host0/bus0/target0/lun0/disc 82348277760 IC35L080AVVA07-0
~ # modprobe lvm-mod
Using /lib/modules/2.4.25-sb1-swarm-bn/kernel/drivers/md/lvm-mod.o
~ # modprobe dm-mod
Using /lib/modules/2.4.25-sb1-swarm-bn/kernel/drivers/md/dm-mod.o
~ # mkfs.ext2 /dev/ide/host0/bus0/target0/lun0/part2
mke2fs 1.35 (28-Feb-2004)
Filesystem label=3D
OS type: Linux
Block size=3D4096 (log=3D2)
Fragment size=3D4096 (log=3D2)
244320 inodes, 488376 blocks
24418 blocks (5.00%) reserved for the super user
First data block=3D0
15 block groups
32768 blocks per group, 32768 fragments per group
16288 inodes per group
Superblock backups stored on blocks:=20
32768, 98304, 163840, 229376, 294912
[...]
Writing superblocks and filesystem accounting information: done
This filesystem will be automatically checked every 38 mounts or
180 days, whichever comes first. Use tune2fs -c or -i to override.
~ # pvscan
pvscan -- reading all physical volumes (this may take a while...)
pvscan -- ERROR "pv_read(): PV identifier invalid" reading physical volumes
~ # vgscan
vgscan -- reading all physical volumes (this may take a while...)
vgscan -- "/etc/lvmtab" and "/etc/lvmtab.d" successfully created
vgscan -- WARNING: This program does not do a VGDA backup of your volume gr=
oup
~ #=20
~ # pvcreate /dev/ide/host0/bus0/target0/lun0/part2
pvcreate -- physical volume "/dev/ide/host0/bus0/target0/lun0/part2" succes=
sfully created
~ # vgcreate foo /dev/ide/host0/bus0/target0/lun0/part2
vgcreate -- INFO: using default physical extent size 32 MB
vgcreate -- INFO: maximum logical volume size is 2 Terabyte
vgcreate -- doing automatic backup of volume group "foo"
vgcreate -- volume group "foo" successfully created and activated
~ # lvcreate -l10 -n test foo
lvcreate -- doing automatic backup of "foo"
lvcreate -- logical volume "/dev/foo/test" successfully created
~ # parted_devices
/dev/foo/test 335544320=09
/dev/ide/host0/bus0/target0/lun0/disc 82348277760 IC35L080AVVA07-0
~ # ls -la /dev/ | grep foo
drwxr-xr-x 1 root root 0 Jan 1 1970 foo
~ #=20
~ # ls -la /dev/foo
drwxr-xr-x 1 root root 0 Jan 1 1970 .
drwxr-xr-x 1 root root 0 Jan 1 1970 ..
crw-r----- 1 root root 109, 0 Jan 1 1970 group
brw-r----- 1 root root 58, 0 Jan 1 1970 test
~ #=20
~ # ls -la /dev/foo/test
brw-r----- 1 root root 58, 0 Jan 1 1970 /dev/foo/test
---------------------------------------------------------------------------=
-------
~ # mkfs.ext2 /dev/ide/host0/bus0/target0/lun0/part2
mke2fs 1.35 (28-Feb-2004)
Filesystem label=3D
OS type: Linux
Block size=3D4096 (log=3D2)
Fragment size=3D4096 (log=3D2)
244320 inodes, 488376 blocks
24418 blocks (5.00%) reserved for the super user
First data block=3D0
15 block groups
32768 blocks per group, 32768 fragments per group
16288 inodes per group
Superblock backups stored on blocks:=20
32768, 98304, 163840, 229376, 294912
=2E..
Writing superblocks and filesystem accounting information: done
This filesystem will be automatically checked every 26 mounts or
180 days, whichever comes first. Use tune2fs -c or -i to override.
~ # wget ftp://ftp-uxsup.csx.cam.ac.uk/pub/linux/debian/pool/main/l/lvm2/lv=
m2-ud =08eb_2.00.08-4_mips.udeb
Connecting to ftp-uxsup.csx.cam.ac.uk[131.111.8.10]:21
lvm2-udeb_2.00.08-4_ 0% | | 0 --:--=
ETA
lvm2-udeb_2.00.08-4_ 100% |*****************************| 170 KB 00:00=
ETA
~ # wget ftp://ftp-uxsup.csx.cam.ac.uk/pub/linux/debian/pool/main/d/devmapp=
er/li =08bdevmapper1.00-udeb_1.00.15-1_mips.udeb
Connecting to ftp-uxsup.csx.cam.ac.uk[131.111.8.10]:21
libdevmapper1.00-ude 0% | | 0 --:--=
ETA
libdevmapper1.00-ude 100% |*****************************| 10720 00:00=
ETA
~ # udpkg -i libdevmapper1.00-udeb_1.00.15-1_mips.udeb
~ # udpkg -i lvm2-udeb_2.00.08-4_mips.udeb
~ #=20
~ # pvscan
No matching physical volumes found
~ # vgscan
Reading all physical volumes. This may take a while...
No volume groups found
~ # parted_devices
/dev/ide/host0/bus0/target0/lun0/disc 82348277760 IC35L080AVVA07-0
~ #=20
~ # pvcreate /dev/ide/host0/bus0/target0/lun0/part2
No physical volume label read from /dev/ide/host0/bus0/target0/lun0/part2
Physical volume "/dev/ide/host0/bus0/target0/lun0/part2" successfully cre=
ated
~ # vgcreate bar /dev/ide/host0/bus0/target0/lun0/part2
Volume group "bar" successfully created
~ # lvcreate -l10 -n zoo bar
Logical volume "zoo" created
~ # ls -l /dev/ | grep bar
dr-x------ 1 root root 0 May 3 17:11 bar
~ #=20
~ # ls -l /dev/bar
lr-xr-xr-x 1 root root 19 May 3 17:11 zoo -> /dev/mapper/=
bar-zoo
~ #=20
~ # ls -l /dev/bar
lr-xr-xr-x 1 root root 19 May 3 17:11 zoo -> /dev/mapper/=
bar-zoo
~ # ls -l /dev/mapper/
brw-r----- 1 root root 254, 0 Jan 1 1970 bar-zoo
lr-xr-xr-x 1 root root 21 Jan 1 1970 control -> ../misc/=
device-mapper
~ #=20
~ # ls -l /dev/mapper/bar-zoo
~ # ls -l /dev/mapper/bar-zoo
brw-r----- 1 root root 254, 0 Jan 1 1970 /dev/mapper/bar-zoo
~ # parted_devices
/dev/ide/host0/bus0/target0/lun0/disc 82348277760 IC35L080AVVA07-0
--=20
Martin Michlmayr
tbm@cyrius.com
---------------------------------------
Received: (at 247174-done) by bugs.debian.org; 25 Nov 2004 13:29:28 +0000
>From sven.luther@wanadoo.fr Thu Nov 25 05:29:27 2004
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Date: Thu, 25 Nov 2004 14:32:53 +0100
To: 239371-done@bugs.debian.org, 239372-done@bugs.debian.org,
259248-done@bugs.debian.org, 247174-done@bugs.debian.org,
259534-done@bugs.debian.org, 258188-done@bugs.debian.org
Subject: all fixed in NMUs, aknowledging them ...
Message-ID: <20041125133253.GA18450@pegasos>
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From: Sven Luther <sven.luther@wanadoo.fr>
Delivered-To: 247174-done@bugs.debian.org
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As subject said.
Friendly,
Sven Luther