||11-08-2012 03:32 AM
disk failing? Best strategy
Yesterday evening I started seeing some disk errors on the home partition, /dev/sda2, of my Fedora 17 box. Here is a line from dmesg:
[2300766.067364] EXT4-fs error (device sda2): ext4_wait_block_bitmap:447: comm flush-8:0: Cannot read block bitmap - block_group = 121, block_bitmap = 3670025
[2300775.140555] EXT4-fs (sda2): delayed block allocation failed for inode 2230055 at logical offset 65 with max blocks 2 with error -5
[2300775.140560] EXT4-fs (sda2): This should not happen!! Data will be lost
I see this error for three different inodes.
Right now, I am in the process of copying a collection of MP3s to a USB drive but for some reason it is going extremely slowly (approx. 1G/hour). What I would really like to do is boot from Fedora in rescue mode from a USB stick, mount the problematic partition, and copy the remaining MP3s to the USB drive, but I am apprehensive that the partition won't be mountable if the disk is corrupted in any way.
Any thoughts on the best way to manage this?