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#1 2019-02-17 12:13:41

davemat125
Member
Registered: 2019-02-17
Posts: 5

[SOLVED] Input/output error when trying to mount partition

After forced shutdown i cant mount partition.

Mount command gives me a "cant read a superblock error"

e2fsck gives me a "input/output error while trying to open /dev/sdb1"

if i use 8193 superblock with e2fsck, i get "bad magic number in superblock while trying to open /dev/sdb1"

if i uses any other alternative superblock, i get message that dev/sdb1 is clean and "error writing block 1 (input/output error)"

lsblk detects a partition. Disk is 2.5 put in cd tray adapter, partitioned in mbr/bios and has 1 partition.

Can someone help me with this? smile

Last edited by davemat125 (2019-02-17 19:18:20)

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#2 2019-02-17 12:18:22

loqs
Member
Registered: 2014-03-06
Posts: 18,853

Re: [SOLVED] Input/output error when trying to mount partition

Welcome to the arch linux forums davemat125.  I would suggest running a S.M.A.R.T. test if the device supports it.
Have you backed up / imaged the device before starting to attempt recovery on it?

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#3 2019-02-17 12:33:10

davemat125
Member
Registered: 2019-02-17
Posts: 5

Re: [SOLVED] Input/output error when trying to mount partition

Hi, loqs.

Disk passed short smart test.

I have a few days old backup, that contains most of the data. It would be nice to fix partition, or extract data that is not in my backup.

Thanks for helping me. smile

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#4 2019-02-17 12:38:58

loqs
Member
Registered: 2014-03-06
Posts: 18,853

Re: [SOLVED] Input/output error when trying to mount partition

Please provide the commands you are using together with their full outputs.  Please also include the output of dmesg and `smartctl -a /dev/sda`

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#5 2019-02-17 13:10:35

davemat125
Member
Registered: 2019-02-17
Posts: 5

Re: [SOLVED] Input/output error when trying to mount partition

smartctl 7.0 2018-12-30 r4883 [x86_64-linux-4.20.7-arch1-1-ARCH] (local build)
Copyright (C) 2002-18, Bruce Allen, Christian Franke, [url=http://www.smartmontools.org]www.smartmontools.org[/url]

=== START OF INFORMATION SECTION ===
Model Family:     Toshiba 2.5" HDD MQ01ABD...
Device Model:     TOSHIBA MQ01ABD100
Serial Number:    35C1PBGWT
LU WWN Device Id: 5 000039 6221849bd
Firmware Version: AX003J
User Capacity:    1,000,204,886,016 bytes [1.00 TB]
Sector Sizes:     512 bytes logical, 4096 bytes physical
Rotation Rate:    5400 rpm
Form Factor:      2.5 inches
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: 6.0 Gb/s)
Local Time is:    Sun Feb 17 15:04:39 2019 UTC
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:  (0x00)	Offline data collection activity
					was never started.
					Auto Offline Data Collection: Disabled.
Self-test execution status:      ( 112)	The previous self-test completed having
					the read element of the test failed.
Total time to complete Offline 
data collection: 		(  120) seconds.
Offline data collection
capabilities: 			 (0x5b) SMART execute Offline immediate.
					Auto Offline data collection on/off support.
					Suspend Offline collection upon new
					command.
					Offline surface scan supported.
					Self-test supported.
					No 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: 	 ( 245) minutes.
SCT capabilities: 	       (0x003d)	SCT Status supported.
					SCT Error Recovery Control 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     0x000b   100   100   050    Pre-fail  Always       -       0
  2 Throughput_Performance  0x0005   100   100   050    Pre-fail  Offline      -       0
  3 Spin_Up_Time            0x0027   100   100   001    Pre-fail  Always       -       1688
  4 Start_Stop_Count        0x0032   100   100   000    Old_age   Always       -       119641
  5 Reallocated_Sector_Ct   0x0033   100   100   050    Pre-fail  Always       -       1992
  7 Seek_Error_Rate         0x000b   100   100   050    Pre-fail  Always       -       0
  8 Seek_Time_Performance   0x0005   100   100   050    Pre-fail  Offline      -       0
  9 Power_On_Hours          0x0032   034   034   000    Old_age   Always       -       26796
 10 Spin_Retry_Count        0x0033   253   100   030    Pre-fail  Always       -       0
 12 Power_Cycle_Count       0x0032   100   100   000    Old_age   Always       -       268
191 G-Sense_Error_Rate      0x0032   100   100   000    Old_age   Always       -       316001
192 Power-Off_Retract_Count 0x0032   100   100   000    Old_age   Always       -       66
193 Load_Cycle_Count        0x0032   076   076   000    Old_age   Always       -       247185
194 Temperature_Celsius     0x0022   100   100   000    Old_age   Always       -       24 (Min/Max 16/55)
196 Reallocated_Event_Count 0x0032   100   100   000    Old_age   Always       -       162
197 Current_Pending_Sector  0x0032   100   100   000    Old_age   Always       -       208
198 Offline_Uncorrectable   0x0030   100   100   000    Old_age   Offline      -       5
199 UDMA_CRC_Error_Count    0x0032   200   200   000    Old_age   Always       -       0
220 Disk_Shift              0x0002   100   100   000    Old_age   Always       -       28
222 Loaded_Hours            0x0032   056   056   000    Old_age   Always       -       17904
223 Load_Retry_Count        0x0032   100   100   000    Old_age   Always       -       0
224 Load_Friction           0x0022   100   100   000    Old_age   Always       -       0
226 Load-in_Time            0x0026   100   100   000    Old_age   Always       -       186
240 Head_Flying_Hours       0x0001   100   100   001    Pre-fail  Offline      -       0

SMART Error Log Version: 1
ATA Error Count: 65535 (device log contains only the most recent five errors)
	CR = Command Register [HEX]
	FR = Features Register [HEX]
	SC = Sector Count Register [HEX]
	SN = Sector Number Register [HEX]
	CL = Cylinder Low Register [HEX]
	CH = Cylinder High Register [HEX]
	DH = Device/Head Register [HEX]
	DC = Device Command Register [HEX]
	ER = Error register [HEX]
	ST = Status register [HEX]
Powered_Up_Time is measured from power on, and printed as
DDd+hh:mm:SS.sss where DD=days, hh=hours, mm=minutes,
SS=sec, and sss=millisec. It "wraps" after 49.710 days.

Error 65535 occurred at disk power-on lifetime: 26795 hours (1116 days + 11 hours)
  When the command that caused the error occurred, the device was active or idle.

  After command completion occurred, registers were:
  ER ST SC SN CL CH DH
  -- -- -- -- -- -- --
  40 41 a8 00 08 00 40  Error: UNC at LBA = 0x00000800 = 2048

  Commands leading to the command that caused the error were:
  CR FR SC SN CL CH DH DC   Powered_Up_Time  Command/Feature_Name
  -- -- -- -- -- -- -- --  ----------------  --------------------
  60 08 a8 00 08 00 40 00      00:37:57.201  READ FPDMA QUEUED
  ef 10 02 00 00 00 a0 00      00:37:57.200  SET FEATURES [Enable SATA feature]
  27 00 00 00 00 00 e0 00      00:37:57.200  READ NATIVE MAX ADDRESS EXT [OBS-ACS-3]
  ec 00 00 00 00 00 a0 00      00:37:57.199  IDENTIFY DEVICE
  ef 03 45 00 00 00 a0 00      00:37:57.199  SET FEATURES [Set transfer mode]

Error 65534 occurred at disk power-on lifetime: 26795 hours (1116 days + 11 hours)
  When the command that caused the error occurred, the device was active or idle.

  After command completion occurred, registers were:
  ER ST SC SN CL CH DH
  -- -- -- -- -- -- --
  40 41 78 00 08 00 40  Error: UNC at LBA = 0x00000800 = 2048

  Commands leading to the command that caused the error were:
  CR FR SC SN CL CH DH DC   Powered_Up_Time  Command/Feature_Name
  -- -- -- -- -- -- -- --  ----------------  --------------------
  60 08 78 00 08 00 40 00      00:37:53.351  READ FPDMA QUEUED
  60 08 70 a0 6d 70 40 00      00:37:53.350  READ FPDMA QUEUED
  60 08 68 00 6d 70 40 00      00:37:53.318  READ FPDMA QUEUED
  ef 10 02 00 00 00 a0 00      00:37:53.316  SET FEATURES [Enable SATA feature]
  27 00 00 00 00 00 e0 00      00:37:53.315  READ NATIVE MAX ADDRESS EXT [OBS-ACS-3]

Error 65533 occurred at disk power-on lifetime: 26795 hours (1116 days + 11 hours)
  When the command that caused the error occurred, the device was active or idle.

  After command completion occurred, registers were:
  ER ST SC SN CL CH DH
  -- -- -- -- -- -- --
  40 41 50 00 08 00 40  Error: UNC at LBA = 0x00000800 = 2048

  Commands leading to the command that caused the error were:
  CR FR SC SN CL CH DH DC   Powered_Up_Time  Command/Feature_Name
  -- -- -- -- -- -- -- --  ----------------  --------------------
  60 08 50 00 08 00 40 00      00:37:49.466  READ FPDMA QUEUED
  ef 10 02 00 00 00 a0 00      00:37:49.466  SET FEATURES [Enable SATA feature]
  27 00 00 00 00 00 e0 00      00:37:49.465  READ NATIVE MAX ADDRESS EXT [OBS-ACS-3]
  ec 00 00 00 00 00 a0 00      00:37:49.464  IDENTIFY DEVICE
  ef 03 45 00 00 00 a0 00      00:37:49.464  SET FEATURES [Set transfer mode]

Error 65532 occurred at disk power-on lifetime: 26795 hours (1116 days + 11 hours)
  When the command that caused the error occurred, the device was active or idle.

  After command completion occurred, registers were:
  ER ST SC SN CL CH DH
  -- -- -- -- -- -- --
  40 41 b8 00 08 00 40  Error: UNC at LBA = 0x00000800 = 2048

  Commands leading to the command that caused the error were:
  CR FR SC SN CL CH DH DC   Powered_Up_Time  Command/Feature_Name
  -- -- -- -- -- -- -- --  ----------------  --------------------
  60 08 b8 00 08 00 40 00      00:37:45.634  READ FPDMA QUEUED
  ef 10 02 00 00 00 a0 00      00:37:45.633  SET FEATURES [Enable SATA feature]
  27 00 00 00 00 00 e0 00      00:37:45.632  READ NATIVE MAX ADDRESS EXT [OBS-ACS-3]
  ec 00 00 00 00 00 a0 00      00:37:45.632  IDENTIFY DEVICE
  ef 03 45 00 00 00 a0 00      00:37:45.631  SET FEATURES [Set transfer mode]

Error 65531 occurred at disk power-on lifetime: 26795 hours (1116 days + 11 hours)
  When the command that caused the error occurred, the device was active or idle.

  After command completion occurred, registers were:
  ER ST SC SN CL CH DH
  -- -- -- -- -- -- --
  40 41 88 00 08 00 40  Error: UNC at LBA = 0x00000800 = 2048

  Commands leading to the command that caused the error were:
  CR FR SC SN CL CH DH DC   Powered_Up_Time  Command/Feature_Name
  -- -- -- -- -- -- -- --  ----------------  --------------------
  60 20 88 00 08 00 40 00      00:37:39.542  READ FPDMA QUEUED
  ea 00 00 00 00 00 a0 00      00:37:39.541  FLUSH CACHE EXT
  ef 10 02 00 00 00 a0 00      00:36:07.758  SET FEATURES [Enable SATA feature]
  27 00 00 00 00 00 e0 00      00:36:07.757  READ NATIVE MAX ADDRESS EXT [OBS-ACS-3]
  ec 00 00 00 00 00 a0 00      00:36:07.757  IDENTIFY DEVICE

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       00%     26796         2048
# 2  Extended offline    Completed: read failure       00%     17053         31365024
# 3  Short offline       Completed without error       00%     17043         -
# 4  Short offline       Completed without error       00%      8882         -

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.

Last edited by davemat125 (2019-02-17 19:16:55)

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#6 2019-02-17 13:23:56

ua4000
Member
Registered: 2015-10-14
Posts: 547

Re: [SOLVED] Input/output error when trying to mount partition

  5 Reallocated_Sector_Ct   0x0033   100   100   050    Pre-fail  Always       -       1992
196 Reallocated_Event_Count 0x0032   100   100   000    Old_age   Always       -       162
197 Current_Pending_Sector  0x0032   100   100   000    Old_age   Always       -       208
198 Offline_Uncorrectable   0x0030   100   100   000    Old_age   Offline      -       5
220 Disk_Shift              0x0002   100   100   000    Old_age   Always       -       28

Sorry, bad news:
Your hard-disk is defect and beyond repair.
Get a new one, imstall arch fresh, and then restore your personal data from a backup.

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#7 2019-02-17 14:21:01

davemat125
Member
Registered: 2019-02-17
Posts: 5

Re: [SOLVED] Input/output error when trying to mount partition

is there any easy way to at least try to extract one directory? It's not critical, but it would be nice.

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#8 2019-02-17 14:22:01

2ManyDogs
Forum Fellow
Registered: 2012-01-15
Posts: 4,648

Re: [SOLVED] Input/output error when trying to mount partition

davemat125, please edit your smartctl post and use [ code ] tags when posting output.

https://wiki.archlinux.org/index.php/Co … s_and_code
https://bbs.archlinux.org/help.php#bbcode

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#9 2019-02-17 14:29:26

ua4000
Member
Registered: 2015-10-14
Posts: 547

Re: [SOLVED] Input/output error when trying to mount partition

I would start with https://wiki.archlinux.org/index.php/Fi … d_PhotoRec
But don't forget to read it complete from the begining with "Special notes" :-)

And don't write anything to the disk, mount it only read-only !
Better work with a copy /image if you have important data to rescue.

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#10 2019-02-17 19:14:57

davemat125
Member
Registered: 2019-02-17
Posts: 5

Re: [SOLVED] Input/output error when trying to mount partition

So i was finally able to mount the partition using some random alt superblock with read-only option. Files seem fine. Thanks for help.

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