Looks like some hardware or media errors:
Aug 22 21:04:28 ubuntu kernel: [ 90.497775] sd 5:0:1:0: [sdb]
Aug 22 21:04:28 ubuntu kernel: [ 90.497778] Add. Sense: Unrecovered read
error - auto reallocate failed
Aug 22 21:04:28 ubuntu kernel: [ 90.497780] sd 5:0:1:0: [sdb] CDB:
Aug 22 21:04:28 ubuntu kernel: [ 90.497781] Read(10): 28 00 00 60 08 08 00 00
40 00
Aug 22 21:04:28 ubuntu kernel: [ 90.497788] end_request: I/O error, dev sdb,
sector 6293516
Aug 22 21:04:28 ubuntu kernel: [ 90.497790] Buffer I/O error on device sdb1,
logical block 6291468
Aug 22 21:04:28 ubuntu kernel: [ 90.497793] Buffer I/O error on device sdb1,
logical block 6291469
Aug 22 21:04:28 ubuntu kernel: [ 90.497794] Buffer I/O error on device sdb1,
logical block 6291470
Aug 22 21:04:28 ubuntu kernel: [ 90.497796] Buffer I/O error on device sdb1,
logical block 6291471
Aug 22 21:04:28 ubuntu kernel: [ 90.497800] Buffer I/O error on device sdb1,
logical block 6291472
Aug 22 21:04:28 ubuntu kernel: [ 90.497802] Buffer I/O error on device sdb1,
logical block 6291473
Aug 22 21:04:28 ubuntu kernel: [ 90.497804] Buffer I/O error on device sdb1,
logical block 6291474
Aug 22 21:04:28 ubuntu kernel: [ 90.497806] Buffer I/O error on device sdb1,
logical block 6291475
Aug 22 21:04:28 ubuntu kernel: [ 90.497808] Buffer I/O error on device sdb1,
logical block 6291476
Aug 22 21:04:28 ubuntu kernel: [ 90.497809] Buffer I/O error on device sdb1,
logical block 6291477
Aug 22 21:04:28 ubuntu kernel: [ 90.497828] ata6: EH complete
Aug 22 21:04:28 ubuntu kernel: [ 92.207809] ata6.01: exception Emask 0x0 SAct
0x0 SErr 0x0 action 0x0
Aug 22 21:04:28 ubuntu kernel: [ 92.207812] ata6.01: BMDMA stat 0x44
Aug 22 21:04:28 ubuntu kernel: [ 92.207814] ata6.01: failed command: READ DMA
Aug 22 21:04:28 ubuntu kernel: [ 92.207819] ata6.01: cmd
c8/00:20:48:08:60/00:00:00:00:00/f0 tag 0 dma 16384 in
Aug 22 21:04:28 ubuntu kernel: [ 92.207819] res
51/40:00:48:08:60/40:00:19:00:00/f0 Emask 0x9 (media error)
Aug 22 21:04:28 ubuntu kernel: [ 92.207821] ata6.01: status: { DRDY ERR }
Aug 22 21:04:28 ubuntu kernel: [ 92.207826] ata6.01: error: { UNC }
Aug 22 21:04:28 ubuntu kernel: [ 92.230492] ata6.01: configured for UDMA/100
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https://bugs.launchpad.net/bugs/1215550
Title:
Installation crashed!
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