Date: Thu, 26 Jan 2012 15:22:25 GMT From: vermaden <vermaden@interia.pl> To: freebsd-gnats-submit@FreeBSD.org Subject: amd64/164516: unable to mount EXT2 filesystem Message-ID: <201201261522.q0QFMPJA011257@red.freebsd.org> Resent-Message-ID: <201201261530.q0QFUBbf071360@freefall.freebsd.org>
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>Number: 164516
>Category: amd64
>Synopsis: unable to mount EXT2 filesystem
>Confidential: no
>Severity: serious
>Priority: medium
>Responsible: freebsd-amd64
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Thu Jan 26 15:30:11 UTC 2012
>Closed-Date:
>Last-Modified:
>Originator: vermaden
>Release: 9.0-STABLE
>Organization:
>Environment:
FreeBSD hostname 9.0-STABLE FreeBSD 9.0-STABLE #0 r230041: Fri Jan 13 09:31:26 CET 2012 root@hostname:/usr/obj/usr/src/sys/GENERIC amd64
>Description:
Here are steps taken to create, check and (try to) mount a new EXT2 filesystem:
# dd < /dev/zero > FILE bs=1M count=100
100+0 records in
100+0 records out
104857600 bytes transferred in 0.093486 secs (1121641617 bytes/sec)
# mdconfig.sh -c FILE
IN: created vnode at /dev/md0
# mdconfig.sh -l
md0 vnode 100M /usr/home/vermaden/FILE
# mkfs.ext2 -I 128 /dev/md0
mke2fs 1.41.14 (22-Dec-2010)
Filesystem label=
OS type: FreeBSD
Block size=1024 (log=0)
Fragment size=1024 (log=0)
Stride=0 blocks, Stripe width=0 blocks
25688 inodes, 102400 blocks
5120 blocks (5.00%) reserved for the super user
First data block=1
Maximum filesystem blocks=67371008
13 block groups
8192 blocks per group, 8192 fragments per group
1976 inodes per group
Superblock backups stored on blocks:
8193, 24577, 40961, 57345, 73729
Writing inode tables: done
Writing superblocks and filesystem accounting information: done
This filesystem will be automatically checked every 21 mounts or
180 days, whichever comes first. Use tune2fs -c or -i to override.
# tune2fs -l /dev/md0 | grep 'Inode size'
Inode size: 128
# file -s /dev/md0
/dev/md0: Linux rev 1.0 ext2 filesystem data
# fsck.ext2 /dev/md0
e2fsck 1.41.14 (22-Dec-2010)
/dev/md0: clean, 11/25688 files, 4800/102400 blocks
# mount -t ext2 /dev/md0 /mnt/tmp0
mount: /dev/md0 : Operation not supported by device
>How-To-Repeat:
# mount -t ext2 /dev/md0 /mnt/tmp0
mount: /dev/md0 : Operation not supported by device
>Fix:
>Release-Note:
>Audit-Trail:
>Unformatted:
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