package ubuntu-docs 14.04.3 failed to install/upgrade: failed to stat (dereference) existing symlink `/usr/share/help/fr/ubuntu-help/a11y-screen-reader.page': Input/output error

Thank you for taking the time to report this bug and helping to make Ubuntu better. Reviewing your dmesg attachment to this bug report it seems that there may be a problem with your hardware. I'd recommend performing a back up and then investigating the situation. Measures you might take include checking cable connections and using software tools to investigate the health of your hardware. In the event that is is not in fact an error with your hardware please set the bug's status back to New. Thanks and good luck!

Hello, please note the following entries in your logs:

[ 9891.235481] ata1.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x0
[ 9891.235490] ata1.00: irq_stat 0x40000008
[ 9891.235495] ata1.00: failed command: READ FPDMA QUEUED
[ 9891.235504] ata1.00: cmd 60/08:00:88:ea:01/00:00:16:00:00/40 tag 0 ncq 4096 in
[ 9891.235504] res 41/40:00:88:ea:01/00:00:16:00:00/40 Emask 0x409 (media error) <F>
[ 9891.235508] ata1.00: status: { DRDY ERR }
[ 9891.235511] ata1.00: error: { UNC }
[ 9891.247864] ata1.00: configured for UDMA/133
[ 9891.247896] sd 0:0:0:0: [sda] Unhandled sense code
[ 9891.247898] sd 0:0:0:0: [sda]
[ 9891.247899] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
[ 9891.247900] sd 0:0:0:0: [sda]
[ 9891.247901] Sense Key : Medium Error [current] [descriptor]
[ 9891.247903] Descriptor sense data with sense descriptors (in hex):
[ 9891.247904] 72 03 11 04 00 00 00 0c 00 0a 80 00 00 00 00 00
[ 9891.247910] 16 01 ea 88
[ 9891.247912] sd 0:0:0:0: [sda]
[ 9891.247914] Add. Sense: Unrecovered read error - auto reallocate failed
[ 9891.247916] sd 0:0:0:0: [sda] CDB:
[ 9891.247917] Read(10): 28 00 16 01 ea 88 00 00 08 00
[ 9891.247922] end_request: I/O error, dev sda, sector 369224328
[ 9891.247935] ata1: EH complete
[ 9950.926187] ata1.00: exception Emask 0x0 SAct 0xf SErr 0x0 action 0x6 frozen
[ 9950.926197] ata1.00: failed command: READ FPDMA QUEUED
[ 9950.926206] ata1.00: cmd 60/08:00:88:ea:01/00:00:16:00:00/40 tag 0 ncq 4096 in
[ 9950.926206] res 40/00:00:88:ea:01/00:00:16:00:00/40 Emask 0x4 (timeout)