Problem with suspend/resume (Ubuntu 10.04.2)

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Hi,

I have a problem with suspend/resume on Ubuntu 10.04.2.
(the system booted-up from USB flash-drive)

After resumed, root(/) filesystem have been write-protected
and remount-command says as follow

# mount -o remount /
[ 3017.884681] EXT4-fs error (device sdb1): ext4_remount: Abort forced by user
mount: cannot remount block device /dev/sdb1 read-write, is write-protected


Do you have any idea?


$ df -T
Filesystem    Type   1K-blocks      Used Available Use% Mounted on
/dev/sdb1     ext4     7658120   3306944   3962160  46% /
none      devtmpfs      486908       308    486600   1% /dev
none         tmpfs      493672       208    493464   1% /dev/shm
tmpfs        tmpfs      493672        12    493660   1% /tmp
none         tmpfs      493672        88    493584   1% /var/run
none         tmpfs      493672         4    493668   1% /var/lock
none         tmpfs      493672         0    493672   0% /lib/init/rw

$ uname -r
2.6.32-30-generic


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