After digging and digging I found the answer. It is due to "take ownership of filesystem" option in palimset(Disk utility). If you set that option while formatting any of the partition(ext4/ext3) you cannot write/read it under different user. I found the answer, so I'm closing this bug as solved.
After digging and digging I found the answer. It is due to "take ownership of filesystem" option in palimset(Disk utility). If you set that option while formatting any of the partition( ext4/ext3) you cannot write/read it under different user. I found the answer, so I'm closing this bug as solved.