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#1 2013-12-23 03:20:43

steady_drop
Member
Registered: 2012-11-28
Posts: 31

[Solved] Short Read error - unable to mount my backup drive

Heya everyone, I ran into a problem which has been frustrating me and I would appreciate any help possible to fix it.

I started getting the errors below and I would like to recover because the drive has some some stuff which I really need and don't have anywhere else..
Figures this would happen while I was waiting for my backup drive to come in..

I started getting errors on my drive at start up.
When I try double clicking on the drive to mount it.. I get the following error message:
Error mounting /dev/sda at /run/media/wolf/Back up: Command-line `mount -t "ext4" -o "uhelper=udisks2,nodev,nosuid" "/dev/sda" "/run/media/wolf/Back up"' exited with non-zero exit status 32: mount: wrong fs type, bad option, bad superblock on /dev/sda,
       missing codepage or helper program, or other error

When I run dmesg as suggested I get:
dmesg tail

[   15.257708] ata1.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x0
[   15.257712] ata1.00: irq_stat 0x40000008
[   15.257714] ata1.00: failed command: READ FPDMA QUEUED
[   15.257718] ata1.00: cmd 60/08:00:d8:00:00/00:00:00:00:00/40 tag 0 ncq 4096 in
         res 41/40:00:dc:00:00/00:00:00:00:00/40 Emask 0x409 (media error) <F>
[   15.257719] ata1.00: status: { DRDY ERR }
[   15.257720] ata1.00: error: { UNC }
[   15.262611] ata1.00: configured for UDMA/133
[   15.262620] sd 0:0:0:0: [sda] Unhandled sense code
[   15.262621] sd 0:0:0:0: [sda]  
[   15.262622] Result: hostbyte=0x00 driverbyte=0x08
[   15.262623] sd 0:0:0:0: [sda]  
[   15.262624] Sense Key : 0x3 [current] [descriptor]
[   15.262626] Descriptor sense data with sense descriptors (in hex):
[   15.262627]         72 03 11 04 00 00 00 0c 00 0a 80 00 00 00 00 00 
[   15.262632]         00 00 00 dc 
[   15.262634] sd 0:0:0:0: [sda]  
[   15.262634] ASC=0x11 ASCQ=0x4
[   15.262636] sd 0:0:0:0: [sda] CDB: 
[   15.262636] cdb[0]=0x28: 28 00 00 00 00 d8 00 00 08 00
[   15.262641] end_request: I/O error, dev sda, sector 220
[   15.262654] ata1: EH complete
[   17.106788] ata1.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x0
[   17.106791] ata1.00: irq_stat 0x40000008
[   17.106793] ata1.00: failed command: READ FPDMA QUEUED
[   17.106797] ata1.00: cmd 60/08:00:48:03:00/00:00:00:00:00/40 tag 0 ncq 4096 in
         res 41/40:00:4f:03:00/00:00:00:00:00/40 Emask 0x409 (media error) <F>
[   17.106798] ata1.00: status: { DRDY ERR }
[   17.106799] ata1.00: error: { UNC }
[   17.111616] ata1.00: configured for UDMA/133
[   17.111626] sd 0:0:0:0: [sda] Unhandled sense code
[   17.111627] sd 0:0:0:0: [sda]  
[   17.111628] Result: hostbyte=0x00 driverbyte=0x08
[   17.111629] sd 0:0:0:0: [sda]  
[   17.111630] Sense Key : 0x3 [current] [descriptor]
[   17.111632] Descriptor sense data with sense descriptors (in hex):
[   17.111633]         72 03 11 04 00 00 00 0c 00 0a 80 00 00 00 00 00 
[   17.111637]         00 00 03 4f 
[   17.111639] sd 0:0:0:0: [sda]  
[   17.111640] ASC=0x11 ASCQ=0x4
[   17.111641] sd 0:0:0:0: [sda] CDB: 
[   17.111642] cdb[0]=0x28: 28 00 00 00 03 48 00 00 08 00
[   17.111646] end_request: I/O error, dev sda, sector 847
[   17.111657] ata1: EH complete
[   18.922588] ata1.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x0
[   18.922590] ata1.00: irq_stat 0x40000008
[   18.922592] ata1.00: failed command: READ FPDMA QUEUED
[   18.922595] ata1.00: cmd 60/08:00:48:03:00/00:00:00:00:00/40 tag 0 ncq 4096 in
         res 41/40:00:4f:03:00/00:00:00:00:00/40 Emask 0x409 (media error) <F>
[   18.922596] ata1.00: status: { DRDY ERR }
[   18.922597] ata1.00: error: { UNC }
[   18.927618] ata1.00: configured for UDMA/133
[   18.927623] sd 0:0:0:0: [sda] Unhandled sense code
[   18.927624] sd 0:0:0:0: [sda]  
[   18.927625] Result: hostbyte=0x00 driverbyte=0x08
[   18.927626] sd 0:0:0:0: [sda]  
[   18.927627] Sense Key : 0x3 [current] [descriptor]
[   18.927629] Descriptor sense data with sense descriptors (in hex):
[   18.927630]         72 03 11 04 00 00 00 0c 00 0a 80 00 00 00 00 00 
[   18.927634]         00 00 03 4f 
[   18.927636] sd 0:0:0:0: [sda]  
[   18.927637] ASC=0x11 ASCQ=0x4
[   18.927638] sd 0:0:0:0: [sda] CDB: 
[   18.927639] cdb[0]=0x28: 28 00 00 00 03 48 00 00 08 00
[   18.927643] end_request: I/O error, dev sda, sector 847
[   18.927644] quiet_error: 30 callbacks suppressed
[   18.927645] Buffer I/O error on device sda, logical block 105
[   18.927654] ata1: EH complete
[   24.365612] fuse init (API version 7.22)
[ 1871.730523] ata1.00: exception Emask 0x0 SAct 0x3 SErr 0x0 action 0x0
[ 1871.730528] ata1.00: irq_stat 0x40000001
[ 1871.730532] ata1.00: failed command: READ FPDMA QUEUED
[ 1871.730538] ata1.00: cmd 60/00:00:e0:00:00/01:00:00:00:00/40 tag 0 ncq 131072 in
         res 41/40:00:00:00:00/00:00:00:00:00/00 Emask 0x9 (media error)
[ 1871.730542] ata1.00: status: { DRDY ERR }
[ 1871.730544] ata1.00: error: { UNC }
[ 1871.730547] ata1.00: failed command: READ FPDMA QUEUED
[ 1871.730552] ata1.00: cmd 60/80:08:60:00:00/00:00:00:00:00/40 tag 1 ncq 65536 in
         res 41/40:00:dc:00:00/00:00:00:00:00/40 Emask 0x409 (media error) <F>
[ 1871.730555] ata1.00: status: { DRDY ERR }
[ 1871.730558] ata1.00: error: { UNC }
[ 1871.736056] ata1.00: configured for UDMA/133
[ 1871.736073] sd 0:0:0:0: [sda] Unhandled sense code
[ 1871.736076] sd 0:0:0:0: [sda]  
[ 1871.736078] Result: hostbyte=0x00 driverbyte=0x08
[ 1871.736080] sd 0:0:0:0: [sda]  
[ 1871.736082] Sense Key : 0x3 [current] [descriptor]
[ 1871.736086] Descriptor sense data with sense descriptors (in hex):
[ 1871.736087]         72 03 11 04 00 00 00 0c 00 0a 80 00 00 00 00 00 
[ 1871.736096]         00 00 00 00 
[ 1871.736101] sd 0:0:0:0: [sda]  
[ 1871.736102] ASC=0x11 ASCQ=0x4
[ 1871.736105] sd 0:0:0:0: [sda] CDB: 
[ 1871.736106] cdb[0]=0x28: 28 00 00 00 00 e0 00 01 00 00
[ 1871.736114] end_request: I/O error, dev sda, sector 224
[ 1871.736118] quiet_error: 5 callbacks suppressed
[ 1871.736120] Buffer I/O error on device sda, logical block 28
[ 1871.736128] Buffer I/O error on device sda, logical block 29
[ 1871.736131] Buffer I/O error on device sda, logical block 30
[ 1871.736133] Buffer I/O error on device sda, logical block 31
[ 1871.736135] Buffer I/O error on device sda, logical block 32
[ 1871.736137] Buffer I/O error on device sda, logical block 33
[ 1871.736140] Buffer I/O error on device sda, logical block 34
[ 1871.736142] Buffer I/O error on device sda, logical block 35
[ 1871.736145] Buffer I/O error on device sda, logical block 36
[ 1871.736147] Buffer I/O error on device sda, logical block 37
[ 1871.736180] sd 0:0:0:0: [sda] Unhandled sense code
[ 1871.736183] sd 0:0:0:0: [sda]  
[ 1871.736184] Result: hostbyte=0x00 driverbyte=0x08
[ 1871.736186] sd 0:0:0:0: [sda]  
[ 1871.736188] Sense Key : 0x3 [current] [descriptor]
[ 1871.736190] Descriptor sense data with sense descriptors (in hex):
[ 1871.736192]         72 03 11 04 00 00 00 0c 00 0a 80 00 00 00 00 00 
[ 1871.736201]         00 00 00 dc 
[ 1871.736205] sd 0:0:0:0: [sda]  
[ 1871.736206] ASC=0x11 ASCQ=0x4
[ 1871.736208] sd 0:0:0:0: [sda] CDB: 
[ 1871.736210] cdb[0]=0x28: 28 00 00 00 00 60 00 00 80 00
[ 1871.736217] end_request: I/O error, dev sda, sector 220
[ 1871.736231] ata1: EH complete
[ 1873.546301] ata1.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x0
[ 1873.546307] ata1.00: irq_stat 0x40000008
[ 1873.546310] ata1.00: failed command: READ FPDMA QUEUED
[ 1873.546317] ata1.00: cmd 60/08:00:d8:00:00/00:00:00:00:00/40 tag 0 ncq 4096 in
         res 41/40:00:dc:00:00/00:00:00:00:00/40 Emask 0x409 (media error) <F>
[ 1873.546320] ata1.00: status: { DRDY ERR }
[ 1873.546322] ata1.00: error: { UNC }
[ 1873.551138] ata1.00: configured for UDMA/133
[ 1873.551153] sd 0:0:0:0: [sda] Unhandled sense code
[ 1873.551157] sd 0:0:0:0: [sda]  
[ 1873.551159] Result: hostbyte=0x00 driverbyte=0x08
[ 1873.551161] sd 0:0:0:0: [sda]  
[ 1873.551163] Sense Key : 0x3 [current] [descriptor]
[ 1873.551166] Descriptor sense data with sense descriptors (in hex):
[ 1873.551168]         72 03 11 04 00 00 00 0c 00 0a 80 00 00 00 00 00 
[ 1873.551177]         00 00 00 dc 
[ 1873.551181] sd 0:0:0:0: [sda]  
[ 1873.551182] ASC=0x11 ASCQ=0x4
[ 1873.551185] sd 0:0:0:0: [sda] CDB: 
[ 1873.551186] cdb[0]=0x28: 28 00 00 00 00 d8 00 00 08 00
[ 1873.551195] end_request: I/O error, dev sda, sector 220
[ 1873.551220] ata1: EH complete
[ 1875.478731] ata1.00: exception Emask 0x0 SAct 0x8 SErr 0x0 action 0x0
[ 1875.478736] ata1.00: irq_stat 0x40000008
[ 1875.478740] ata1.00: failed command: READ FPDMA QUEUED
[ 1875.478747] ata1.00: cmd 60/80:18:80:00:00/01:00:00:00:00/40 tag 3 ncq 196608 in
         res 41/40:00:dc:00:00/00:00:00:00:00/40 Emask 0x409 (media error) <F>
[ 1875.478750] ata1.00: status: { DRDY ERR }
[ 1875.478753] ata1.00: error: { UNC }
[ 1875.483194] ata1.00: configured for UDMA/133
[ 1875.483224] sd 0:0:0:0: [sda] Unhandled sense code
[ 1875.483228] sd 0:0:0:0: [sda]  
[ 1875.483230] Result: hostbyte=0x00 driverbyte=0x08
[ 1875.483232] sd 0:0:0:0: [sda]  
[ 1875.483234] Sense Key : 0x3 [current] [descriptor]
[ 1875.483237] Descriptor sense data with sense descriptors (in hex):
[ 1875.483239]         72 03 11 04 00 00 00 0c 00 0a 80 00 00 00 00 00 
[ 1875.483248]         00 00 00 dc 
[ 1875.483252] sd 0:0:0:0: [sda]  
[ 1875.483254] ASC=0x11 ASCQ=0x4
[ 1875.483256] sd 0:0:0:0: [sda] CDB: 
[ 1875.483258] cdb[0]=0x28: 28 00 00 00 00 80 00 01 80 00
[ 1875.483266] end_request: I/O error, dev sda, sector 220
[ 1875.483304] ata1: EH complete
[ 1877.294507] ata1.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x0
[ 1877.294512] ata1.00: irq_stat 0x40000008
[ 1877.294515] ata1.00: failed command: READ FPDMA QUEUED
[ 1877.294521] ata1.00: cmd 60/08:00:d8:00:00/00:00:00:00:00/40 tag 0 ncq 4096 in
         res 41/40:00:dc:00:00/00:00:00:00:00/40 Emask 0x409 (media error) <F>
[ 1877.294524] ata1.00: status: { DRDY ERR }
[ 1877.294527] ata1.00: error: { UNC }
[ 1877.299993] ata1.00: configured for UDMA/133
[ 1877.300004] sd 0:0:0:0: [sda] Unhandled sense code
[ 1877.300006] sd 0:0:0:0: [sda]  
[ 1877.300008] Result: hostbyte=0x00 driverbyte=0x08
[ 1877.300011] sd 0:0:0:0: [sda]  
[ 1877.300012] Sense Key : 0x3 [current] [descriptor]
[ 1877.300015] Descriptor sense data with sense descriptors (in hex):
[ 1877.300017]         72 03 11 04 00 00 00 0c 00 0a 80 00 00 00 00 00 
[ 1877.300026]         00 00 00 dc 
[ 1877.300030] sd 0:0:0:0: [sda]  
[ 1877.300032] ASC=0x11 ASCQ=0x4
[ 1877.300034] sd 0:0:0:0: [sda] CDB: 
[ 1877.300036] cdb[0]=0x28: 28 00 00 00 00 d8 00 00 08 00
[ 1877.300043] end_request: I/O error, dev sda, sector 220
[ 1877.300046] quiet_error: 61 callbacks suppressed
[ 1877.300049] Buffer I/O error on device sda, logical block 27
[ 1877.300066] ata1: EH complete
[ 1879.143628] ata1.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x0
[ 1879.143633] ata1.00: irq_stat 0x40000008
[ 1879.143636] ata1.00: failed command: READ FPDMA QUEUED
[ 1879.143643] ata1.00: cmd 60/08:00:48:03:00/00:00:00:00:00/40 tag 0 ncq 4096 in
         res 41/40:00:4f:03:00/00:00:00:00:00/40 Emask 0x409 (media error) <F>
[ 1879.143646] ata1.00: status: { DRDY ERR }
[ 1879.143648] ata1.00: error: { UNC }
[ 1879.148135] ata1.00: configured for UDMA/133
[ 1879.148148] sd 0:0:0:0: [sda] Unhandled sense code
[ 1879.148151] sd 0:0:0:0: [sda]  
[ 1879.148153] Result: hostbyte=0x00 driverbyte=0x08
[ 1879.148155] sd 0:0:0:0: [sda]  
[ 1879.148157] Sense Key : 0x3 [current] [descriptor]
[ 1879.148160] Descriptor sense data with sense descriptors (in hex):
[ 1879.148162]         72 03 11 04 00 00 00 0c 00 0a 80 00 00 00 00 00 
[ 1879.148171]         00 00 03 4f 
[ 1879.148175] sd 0:0:0:0: [sda]  
[ 1879.148177] ASC=0x11 ASCQ=0x4
[ 1879.148179] sd 0:0:0:0: [sda] CDB: 
[ 1879.148181] cdb[0]=0x28: 28 00 00 00 03 48 00 00 08 00
[ 1879.148189] end_request: I/O error, dev sda, sector 847
[ 1879.148192] Buffer I/O error on device sda, logical block 105
[ 1879.148205] ata1: EH complete
[ 1880.967752] ata1.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x0
[ 1880.967757] ata1.00: irq_stat 0x40000008
[ 1880.967760] ata1.00: failed command: READ FPDMA QUEUED
[ 1880.967767] ata1.00: cmd 60/08:00:48:03:00/00:00:00:00:00/40 tag 0 ncq 4096 in
         res 41/40:00:4f:03:00/00:00:00:00:00/40 Emask 0x409 (media error) <F>
[ 1880.967770] ata1.00: status: { DRDY ERR }
[ 1880.967772] ata1.00: error: { UNC }
[ 1880.972154] ata1.00: configured for UDMA/133
[ 1880.972167] sd 0:0:0:0: [sda] Unhandled sense code
[ 1880.972170] sd 0:0:0:0: [sda]  
[ 1880.972172] Result: hostbyte=0x00 driverbyte=0x08
[ 1880.972174] sd 0:0:0:0: [sda]  
[ 1880.972176] Sense Key : 0x3 [current] [descriptor]
[ 1880.972179] Descriptor sense data with sense descriptors (in hex):
[ 1880.972181]         72 03 11 04 00 00 00 0c 00 0a 80 00 00 00 00 00 
[ 1880.972190]         00 00 03 4f 
[ 1880.972194] sd 0:0:0:0: [sda]  
[ 1880.972195] ASC=0x11 ASCQ=0x4
[ 1880.972198] sd 0:0:0:0: [sda] CDB: 
[ 1880.972199] cdb[0]=0x28: 28 00 00 00 03 48 00 00 08 00
[ 1880.972207] end_request: I/O error, dev sda, sector 847
[ 1880.972211] Buffer I/O error on device sda, logical block 105
[ 1880.972230] ata1: EH complete
[ 2136.512550] ata1.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x0
[ 2136.512556] ata1.00: irq_stat 0x40000008
[ 2136.512559] ata1.00: failed command: READ FPDMA QUEUED
[ 2136.512566] ata1.00: cmd 60/08:00:d8:00:00/00:00:00:00:00/40 tag 0 ncq 4096 in
         res 41/40:00:dc:00:00/00:00:00:00:00/40 Emask 0x409 (media error) <F>
[ 2136.512570] ata1.00: status: { DRDY ERR }
[ 2136.512572] ata1.00: error: { UNC }
[ 2136.517302] ata1.00: configured for UDMA/133
[ 2136.517315] sd 0:0:0:0: [sda] Unhandled sense code
[ 2136.517318] sd 0:0:0:0: [sda]  
[ 2136.517320] Result: hostbyte=0x00 driverbyte=0x08
[ 2136.517322] sd 0:0:0:0: [sda]  
[ 2136.517324] Sense Key : 0x3 [current] [descriptor]
[ 2136.517327] Descriptor sense data with sense descriptors (in hex):
[ 2136.517329]         72 03 11 04 00 00 00 0c 00 0a 80 00 00 00 00 00 
[ 2136.517337]         00 00 00 dc 
[ 2136.517342] sd 0:0:0:0: [sda]  
[ 2136.517343] ASC=0x11 ASCQ=0x4
[ 2136.517346] sd 0:0:0:0: [sda] CDB: 
[ 2136.517347] cdb[0]=0x28: 28 00 00 00 00 d8 00 00 08 00
[ 2136.517355] end_request: I/O error, dev sda, sector 220
[ 2136.517367] ata1: EH complete
[ 2136.517488] EXT4-fs (sda): can't read group descriptor 26

Then I checked with fsck:
fsck.ext4 /dev/sda

fsck.ext4: Attempt to read block from filesystem resulted in short read while trying to open /dev/sda
Could this be a zero-length partition?

I followed that up with :

smartctl -a /dev/sda

=== START OF INFORMATION SECTION ===
Model Family:     Western Digital Caviar Black
Device Model:     WDC WD1002FAEX-00Z3A0
Serial Number:    WD-WMATR1249216
LU WWN Device Id: 5 0014ee 207499f43
Firmware Version: 05.01D05
User Capacity:    1,000,204,886,016 bytes [1.00 TB]
Sector Size:      512 bytes logical/physical
Device is:        In smartctl database [for details use: -P show]
ATA Version is:   ATA8-ACS (minor revision not indicated)
SATA Version is:  SATA 3.0, 6.0 Gb/s (current: 3.0 Gb/s)
Local Time is:    Sun Dec 22 22:16:55 2013 EST
SMART support is: Available - device has SMART capability.
SMART support is: Enabled

=== START OF READ SMART DATA SECTION ===
SMART overall-health self-assessment test result: PASSED

General SMART Values:
Offline data collection status:  (0x82)	Offline data collection activity
					was completed without error.
					Auto Offline Data Collection: Enabled.
Self-test execution status:      (   0)	The previous self-test routine completed
					without error or no self-test has ever 
					been run.
Total time to complete Offline 
data collection: 		(16680) seconds.
Offline data collection
capabilities: 			 (0x7b) SMART execute Offline immediate.
					Auto Offline data collection on/off support.
					Suspend Offline collection upon new
					command.
					Offline surface scan supported.
					Self-test supported.
					Conveyance Self-test supported.
					Selective Self-test supported.
SMART capabilities:            (0x0003)	Saves SMART data before entering
					power-saving mode.
					Supports SMART auto save timer.
Error logging capability:        (0x01)	Error logging supported.
					General Purpose Logging supported.
Short self-test routine 
recommended polling time: 	 (   2) minutes.
Extended self-test routine
recommended polling time: 	 ( 193) minutes.
Conveyance self-test routine
recommended polling time: 	 (   5) minutes.
SCT capabilities: 	       (0x3037)	SCT Status supported.
					SCT Feature Control supported.
					SCT Data Table supported.

SMART Attributes Data Structure revision number: 16
Vendor Specific SMART Attributes with Thresholds:
ID# ATTRIBUTE_NAME          FLAG     VALUE WORST THRESH TYPE      UPDATED  WHEN_FAILED RAW_VALUE
  1 Raw_Read_Error_Rate     0x002f   195   195   051    Pre-fail  Always       -       475
  3 Spin_Up_Time            0x0027   178   173   021    Pre-fail  Always       -       4066
  4 Start_Stop_Count        0x0032   100   100   000    Old_age   Always       -       538
  5 Reallocated_Sector_Ct   0x0033   200   200   140    Pre-fail  Always       -       0
  7 Seek_Error_Rate         0x002e   100   253   000    Old_age   Always       -       0
  9 Power_On_Hours          0x0032   099   099   000    Old_age   Always       -       924
 10 Spin_Retry_Count        0x0032   100   100   000    Old_age   Always       -       0
 11 Calibration_Retry_Count 0x0032   100   100   000    Old_age   Always       -       0
 12 Power_Cycle_Count       0x0032   100   100   000    Old_age   Always       -       496
192 Power-Off_Retract_Count 0x0032   200   200   000    Old_age   Always       -       59
193 Load_Cycle_Count        0x0032   200   200   000    Old_age   Always       -       477
194 Temperature_Celsius     0x0022   110   106   000    Old_age   Always       -       37
196 Reallocated_Event_Count 0x0032   200   200   000    Old_age   Always       -       0
197 Current_Pending_Sector  0x0032   200   200   000    Old_age   Always       -       14
198 Offline_Uncorrectable   0x0030   200   200   000    Old_age   Offline      -       10
199 UDMA_CRC_Error_Count    0x0032   200   200   000    Old_age   Always       -       0
200 Multi_Zone_Error_Rate   0x0008   200   200   000    Old_age   Offline      -       12

SMART Error Log Version: 1
No Errors Logged

SMART Self-test log structure revision number 1
Num  Test_Description    Status                  Remaining  LifeTime(hours)  LBA_of_first_error
# 1  Short offline       Completed: read failure       90%       916         220

SMART Selective self-test log data structure revision number 1
 SPAN  MIN_LBA  MAX_LBA  CURRENT_TEST_STATUS
    1        0        0  Not_testing
    2        0        0  Not_testing
    3        0        0  Not_testing
    4        0        0  Not_testing
    5        0        0  Not_testing
Selective self-test flags (0x0):
  After scanning selected spans, do NOT read-scan remainder of disk.
If Selective self-test is pending on power-up, resume after 0 minute delay.

Has anyone seen this before?
Any help would be really appreciated.
Cheers,

Last edited by steady_drop (2013-12-26 04:09:29)

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#2 2013-12-23 03:37:26

ewaller
Administrator
From: Pasadena, CA
Registered: 2009-07-13
Posts: 19,793

Re: [Solved] Short Read error - unable to mount my backup drive

Is the drive partitioned?  It appears that you are trying to mount /dev/sda.  If it is partitioned, one one expect it to be /dev/sda1 , sda2, sda3...
What is the output of ls /dev/sda*
?

Nothing is too wonderful to be true, if it be consistent with the laws of nature -- Michael Faraday
Sometimes it is the people no one can imagine anything of who do the things no one can imagine. -- Alan Turing
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How to Ask Questions the Smart Way

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#3 2013-12-23 03:49:51

steady_drop
Member
Registered: 2012-11-28
Posts: 31

Re: [Solved] Short Read error - unable to mount my backup drive

I had it formatted as ext4 I don't quite remember if I had it partitioned..as I used it as a storage drive..I had it mounted as backup...but not on my fstab. It worked for several months..
Sorry if that isn't useful..

ls /dev/sda* gave me :

/dev/sda

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#4 2013-12-23 04:06:37

ewaller
Administrator
From: Pasadena, CA
Registered: 2009-07-13
Posts: 19,793

Re: [Solved] Short Read error - unable to mount my backup drive

That sure looks like it is not partitioned.  At least the kernel does not think it is.  Check it for sure with sudo fdisk -l /dev/sda
If there are no partitions, then I am afraid I am out of ideas.

Nothing is too wonderful to be true, if it be consistent with the laws of nature -- Michael Faraday
Sometimes it is the people no one can imagine anything of who do the things no one can imagine. -- Alan Turing
---
How to Ask Questions the Smart Way

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#5 2013-12-23 04:27:57

steady_drop
Member
Registered: 2012-11-28
Posts: 31

Re: [Solved] Short Read error - unable to mount my backup drive

I did sudo fdisk -l /dev/sda and got:

 
Disk /dev/sda: 931.5 GiB, 1000204886016 bytes, 1953525168 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes

Could this be a corrupted superblock?

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#6 2013-12-26 04:08:57

steady_drop
Member
Registered: 2012-11-28
Posts: 31

Re: [Solved] Short Read error - unable to mount my backup drive

Well..The corrupted superblock led me down the right path...Although the short read error was related to corrupted inodes. This was a nightmare..I don't know how it happened.. fsck.ext4 -v /dev/sda  allowed me to repair it enough to grab what I needed..
Cheers and thanks for your help !

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