I will add my 2 cents if this helps. I am running 12.10 . If I use the 3.3 kernel I never see this problem. With the 3.5, 3.6, 3.7 and 3.8 kernels my ext4 file system will suddenly become read-only. This happens at least once a day. It was happening to both my boot and data partitions, but, I reformatted my boot to ext3 and now this only effects the data. I would reformat that to ext3 as well except it's rather large. So far I have not experienced any data loss, just need to reboot .
fdisk -l /dev/sda Device Boot Start End Blocks Id System /dev/sda1 1 2040 16386268 82 Linux swap /dev/sda2 2041 6120 32764567 83 Linux /dev/sda3 6121 121601 927593100 5 Extended /dev/sda5 6121 10200 32764567 83 Linux Warning: Partition 5 does not end on cylinder boundary. /dev/sda6 10201 14280 32764567 83 Linux Warning: Partition 6 does not end on cylinder boundary. /dev/sda7 14281 121601 862047900 83 Linux Warning: Partition 7 does not end on cylinder boundary. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1063354 Title: Sudden Read-Only Filesystems To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1063354/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs