Hi Bryn,
I compiled a fresh kernel and enabled flakey and delay modules. Now am
able to create disks but
it fails to mount.
dmsetup create d0 --table="0 `blockdev --getsize /dev/sdb` delay
/dev/sdb 0 500"
dmsetup create f0 --table="0 `blockdev --getsize /dev/mapper/d0` flakey
/dev/mapper/d0 0 9 1"
mkfs -t ext3 /dev/mapper/f0
...
...
ext2fs_mkdir: Attempt to read block from filesystem resulted in short
read while creating root dir
Can we even mount such a device ?
Thanks,
Yathi
On 10/20/2011 11:40 AM, Bryn M. Reeves wrote:
On 10/20/2011 05:46 PM, Yathindra wrote:
>dmsetup create d0 --table="0 `blockdev --getsize /dev/sdb` delay
/dev/sdb 0 500"
device-mapper: reload ioctl failed: Invalid argument
Command failed
In /var/log/messages I see this,
device-mapper: ioctl: error adding target to table
I don't see this here:
# dmsetup create d0 --table="0 `blockdev --getsize /dev/sdb` delay
/dev/sdb 0 500"
# dmsetup info -c d0
Name Maj Min Stat Open Targ Event UUID
d0 253 3 L--w 1 1 0
# dmsetup create f0 --table="0 `blockdev --getsize /dev/mapper/d0`
flakey /dev/mapper/d0 0 9 1"
# dmsetup info -c f0
Name Maj Min Stat Open Targ Event UUID
f0 253 4 L--w 0 1 0
This is using the f15 2.6.40.3 (aka kernel-3.0) with a locally
compiled dm-delay since it's not enabled in the Fedora kernels.
Might want to move this thread over to dm-devel if you're having
trouble with it.
Regards,
Bryn.
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