[1516956.320634] sd 0:0:0:0: [sda] Add. Sense: Unrecovered read error - auto
reallocate failed
[1516956.320639] sd 0:0:0:0: [sda] CDB: Read(10): 28 00 00 4b cc 20 00 00 08 00
[1516956.320648] end_request: I/O error, dev sda, sector 4967459
Hardware error, buy new disk. Backup the data in any
** Attachment added: AptOrdering.txt
https://bugs.launchpad.net/bugs/621001/+attachment/1503119/+files/AptOrdering.txt
** Attachment added: Dependencies.txt
https://bugs.launchpad.net/bugs/621001/+attachment/1503120/+files/Dependencies.txt
** Attachment added: Df.txt