/ is getting mounted in read-only!

once after the

fsck

during booting linux(debian 3.0) found some corruption in root (/) partition. Then it corrected it; but problem here is root partition is getting mounted in readonly. Other partitions like /home /tmp /boot are normal (rw).

after doing

fsck -f

for the root partion it finds some errors in fs and then cleans it. Now if i do reboot then for some short time (may be 2-3 mins) root is mounted as rw. then it gets to its ro state.

any solution to this!
treat is granted!