I made a filesystem (mke2fs -j) on a logical volume under kernel
2.6.20 on a 64-bit based system, and when I try to mount it, ext3
complains with
EXT3-fs: dm-1: couldn't mount because of unsupported optional features (80).
I first thought I just forgot to make the filesystem, so I remade it
and the error is still present. I ran fsck on this freshly made
filesystem, and it completed with no errors.
------------------------------------
Here's the dumpe2fs -h info:
dumpe2fs 1.39 (29-May-2006)
Filesystem volume name: <none>
Last mounted on: <not available>
Filesystem UUID: a4b7ee96-4aa9-4312-9ec9-91059539ece5
Filesystem magic number: 0xEF53
Filesystem revision #: 1 (dynamic)
Filesystem features: has_journal resize_inode dir_index filetype
64bit sparse_super large_file
Default mount options: (none)
Filesystem state: clean
Errors behavior: Continue
Filesystem OS type: Linux
Inode count: 393216000
Block count: 786432000
Reserved block count: 39321600
Free blocks: 774032395
Free inodes: 393215989
First block: 0
Block size: 4096
Fragment size: 4096
Reserved GDT blocks: 1024
Blocks per group: 32768
Fragments per group: 32768
Inodes per group: 16384
Inode blocks per group: 512
Filesystem created: Fri Feb 16 20:00:51 2007
Last mount time: n/a
Last write time: Fri Feb 16 20:36:07 2007
Mount count: 0
Maximum mount count: 23
Last checked: Fri Feb 16 20:36:07 2007
Check interval: 15552000 (6 months)
Next check after: Wed Aug 15 21:36:07 2007
Reserved blocks uid: 0 (user root)
Reserved blocks gid: 0 (group root)
First inode: 11
Inode size: 128
Journal inode: 8
Default directory hash: tea
Directory Hash Seed: a00b379c-0028-4659-93e8-b0a9198ed6c0
Journal backup: inode blocks
Journal size: 128M
------------------------------------
Here's the lvdisplay output on the logical volume:
--- Logical volume ---
LV Name /dev/vgw/lvhall
VG Name vgw
LV UUID eq696g-YyLS-xkwV-XGQf-ri1i-4bTK-RaN5s3
LV Write Access read/write
LV Status available
# open 0
LV Size 2.93 TB
Current LE 768000
Segments 2
Allocation inherit
Read ahead sectors 0
Block device 254:1
What could be causing this error and what does "80" refer to?
--
Maurice Volaski, mvolaski@xxxxxxxxxxxx
Computing Support, Rose F. Kennedy Center
Albert Einstein College of Medicine of Yeshiva University
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