Snapshot md5sum does not compute

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  • #44325
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    dee64
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      Hello @Moddit. Thank you for reminding me about smartmon I have used it in the long distant past on another computer.
      Never really understood what it was telling me other than it Passed or Failed so any help in interpreting the data would be greatly appreciated also HP knows she is getting on a bit so she would appreciate some guidance on which pill to take is it the Red one or the Blue one? Attached is the PO from command -a at the end of it is the result from an extended test done this morning $ sudo smartctl –log=selftest /dev/sda which for a 48 min test is short and lacking any detail other than “Completed without error”

      
       === START OF INFORMATION SECTION ===
      Model Family:     IBM/Hitachi Travelstar 60GH and 40GN
      Device Model:     IC25N040ATCS04-0
      Serial Number:    
      Firmware Version: CA4OA71A
      User Capacity:    40,007,761,920 bytes [40.0 GB]
      Sector Size:      512 bytes logical/physical
      Device is:        In smartctl database [for details use: -P show]
      ATA Version is:   ATA/ATAPI-5 T13/1321D revision 3
      Local Time is:    Wed Nov  4 06:00:20 2020 CET
      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:      (   0)	The previous self-test routine completed
      					without error or no self-test has ever 
      					been run.
      Total time to complete Offline 
      data collection: 		(  645) seconds.
      Offline data collection
      capabilities: 			 (0x1b) 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.
      					No 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.
      					No General Purpose Logging support.
      Short self-test routine 
      recommended polling time: 	 (   2) minutes.
      Extended self-test routine
      recommended polling time: 	 (  48) minutes.
      
      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   062    Pre-fail  Always       -       0
        2 Throughput_Performance  0x0005   100   100   040    Pre-fail  Offline      -       0
        3 Spin_Up_Time            0x0007   141   141   033    Pre-fail  Always       -       1
        4 Start_Stop_Count        0x0012   096   096   000    Old_age   Always       -       7280
        5 Reallocated_Sector_Ct   0x0033   100   100   005    Pre-fail  Always       -       0
        7 Seek_Error_Rate         0x000b   100   100   067    Pre-fail  Always       -       0
        8 Seek_Time_Performance   0x0005   100   100   040    Pre-fail  Offline      -       0
        9 Power_On_Hours          0x0012   049   049   000    Old_age   Always       -       22472
       10 Spin_Retry_Count        0x0013   100   100   060    Pre-fail  Always       -       0
       12 Power_Cycle_Count       0x0032   096   096   000    Old_age   Always       -       7257
      191 G-Sense_Error_Rate      0x000a   100   100   000    Old_age   Always       -       0
      192 Power-Off_Retract_Count 0x0032   098   098   000    Old_age   Always       -       468
      193 Load_Cycle_Count        0x0012   052   052   000    Old_age   Always       -       482735
      194 Temperature_Celsius     0x0002   211   211   000    Old_age   Always       -       26 (Min/Max 11/62)
      196 Reallocated_Event_Count 0x0032   100   100   000    Old_age   Always       -       0
      197 Current_Pending_Sector  0x0022   100   100   000    Old_age   Always       -       0
      198 Offline_Uncorrectable   0x0008   100   100   000    Old_age   Offline      -       0
      199 UDMA_CRC_Error_Count    0x000a   200   200   000    Old_age   Always       -       6
      
      SMART Error Log Version: 1
      ATA Error Count: 31 (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 31 occurred at disk power-on lifetime: 21057 hours (877 days + 9 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
        -- -- -- -- -- -- --
        10 51 01 74 46 66 eb  Error: IDNF 1 sectors at LBA = 0x0b664674 = 191252084
      
        Commands leading to the command that caused the error were:
        CR FR SC SN CL CH DH DC   Powered_Up_Time  Command/Feature_Name
        -- -- -- -- -- -- -- --  ----------------  --------------------
        c8 00 01 74 46 66 eb 00      08:12:47.700  READ DMA
        c8 00 01 01 00 00 e0 00      08:12:47.700  READ DMA
        c8 00 01 00 00 00 e0 00      08:12:47.600  READ DMA
        ca 00 0a 3f 4c 07 e0 00      08:12:47.600  WRITE DMA
        ca 00 08 80 ae 02 e2 00      08:12:47.500  WRITE DMA
      
      Error 30 occurred at disk power-on lifetime: 19936 hours (830 days + 16 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
        -- -- -- -- -- -- --
        10 51 01 74 46 66 eb  Error: IDNF 1 sectors at LBA = 0x0b664674 = 191252084
      
        Commands leading to the command that caused the error were:
        CR FR SC SN CL CH DH DC   Powered_Up_Time  Command/Feature_Name
        -- -- -- -- -- -- -- --  ----------------  --------------------
        c8 00 01 74 46 66 eb 00      00:08:00.500  READ DMA
        c8 00 01 01 00 00 e0 00      00:08:00.500  READ DMA
        c8 00 01 00 00 00 e0 00      00:08:00.500  READ DMA
        ca 00 08 88 ae 02 e2 00      00:08:00.400  WRITE DMA
        ca 00 08 a7 c7 44 e0 00      00:08:00.400  WRITE DMA
      
      Error 29 occurred at disk power-on lifetime: 15774 hours (657 days + 6 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
        -- -- -- -- -- -- --
        10 51 01 74 46 66 eb  Error: IDNF 1 sectors at LBA = 0x0b664674 = 191252084
      
        Commands leading to the command that caused the error were:
        CR FR SC SN CL CH DH DC   Powered_Up_Time  Command/Feature_Name
        -- -- -- -- -- -- -- --  ----------------  --------------------
        c8 00 01 74 46 66 eb 00      00:07:35.600  READ DMA
        c8 00 01 01 00 00 e0 00      00:07:35.600  READ DMA
        c8 00 01 00 00 00 e0 00      00:07:35.600  READ DMA
        ca 00 08 80 ae 02 e2 00      00:07:35.400  WRITE DMA
        ca 00 08 f7 44 45 e0 00      00:07:35.400  WRITE DMA
      
      Error 28 occurred at disk power-on lifetime: 8771 hours (365 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 51 02 23 17 0b e0  Error: UNC 2 sectors at LBA = 0x000b1723 = 726819
      
        Commands leading to the command that caused the error were:
        CR FR SC SN CL CH DH DC   Powered_Up_Time  Command/Feature_Name
        -- -- -- -- -- -- -- --  ----------------  --------------------
        c8 00 7e a7 16 0b e0 00      00:14:55.700  READ DMA
        c8 00 01 00 00 00 e0 00      00:14:55.600  READ DMA
        ca 00 10 af 24 89 e0 00      00:14:55.600  WRITE DMA
        ca 00 08 a7 72 26 e0 00      00:14:55.600  WRITE DMA
        c8 00 7e a7 16 0b e0 00      00:14:51.500  READ DMA
      
      Error 27 occurred at disk power-on lifetime: 8771 hours (365 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 51 02 23 17 0b e0  Error: UNC 2 sectors at LBA = 0x000b1723 = 726819
      
        Commands leading to the command that caused the error were:
        CR FR SC SN CL CH DH DC   Powered_Up_Time  Command/Feature_Name
        -- -- -- -- -- -- -- --  ----------------  --------------------
        c8 00 7e a7 16 0b e0 00      00:14:51.500  READ DMA
        ca 00 08 af 24 89 e0 00      00:14:51.500  WRITE DMA
        ca 00 08 bf 77 26 e0 00      00:14:51.500  WRITE DMA
        c8 00 7e a7 16 0b e0 00      00:14:47.400  READ DMA
        c8 00 01 00 00 00 e0 00      00:14:47.400  READ DMA
      
      SMART Self-test log structure revision number 1
      No self-tests have been logged.  [To run self-tests, use: smartctl -t]
      
      Selective Self-tests/Logging not supported
      
       $ sudo smartctl --log=selftest /dev/sda
       
      smartctl 6.6 2017-11-05 r4594 [i686-linux-4.9.212-antix.1-486-smp] (local build)
      Copyright (C) 2002-17, Bruce Allen, Christian Franke, www.smartmontools.org
      
      === START OF READ SMART DATA SECTION ===
      SMART Self-test log structure revision number 1
      Num  Test_Description    Status                  Remaining  LifeTime(hours)  LBA_of_first_error
      # 1  Extended offline    Completed without error       00%     22473         -
      
      
      • This reply was modified 2 years, 6 months ago by dee64.
      #44327
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      dee64
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        As an addendum to the above. I looked up the Smartmon Wiki, I won’t say it enlightened me but it was interesting.
        Here is a link to the wiki page “HOWTO read smartctl reports” showing an annotated report.

        https://www.smartmontools.org/wiki/Howto_ReadSmartctlReports_ATA_542.1

        just hover the mouse pointer over the colored text and up pops an explanation which for the techies here will provide absolute clarity but for those like me “expert in point and click” the fog clears a little.

        #44372
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        ModdIt
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          Power on Hours: 22472, never saw that in a 2.5 HDD before.

          Anyway to my eyes it looks like your harddisk is ok. If you wish there will also be a way to do an extended self test.
          I probably would not bother. Just continue to enjoy solid technology.
          I do have important data backed up and a couple of remasters, anyone reading, please do make sure your remastered system
          will boot !!. The sinking stupid feeling when that fails when you need it most is not to be reccomended.

          That of course does not help with the checksum puzzle.

          Whenever possible I open all laptops or netbooks, clean out dust and dirt, insects dog/cat hair etc.
          Remove memory, give the contacts a rub over with microfiber cloth, if corrosion present remove gently
          with eraser. give CPU cooler cpu interface a cleanup and some nice arctic silver paste to restore best cooling.
          All of the daily usage devices now have at least a 64GB SSD. Not sure if you would have enough room for that,
          adapter needed.

          A manual for your device is readily available. Nice.

          #44395
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          dee64
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            @Moddit Thanks for the response.I had reached the conclusion that the HD was fine but it was good to get a more experienced opinion confirming that. 22,742hrs that’s what 17 yrs of daily use will do, that is 948 days (2.6yrs) of always on use, as you said “Solid Technology”. The P4 cpu is robust and fast despite being a single core and if I could get 1 Gb more of ram into her I would keep her going but the mobo will not take it. SSD only an option if it was cheaper the prices for older ata SSDs is ridiculous it can be fitted in the cd drive with a caddy but again add the 2 things together and it simply is not a viable option. I am staying with “older” tech I am only looking for a Lenovo T430 because it is one of the few models that is totally upgradable, or another HP a Probook or Elitebook but the monitors on them are garbage. Ok I am starting to ramble so I’ll stop before I go off on one.
            Again thanks to you and everyone else for your input, problem not solved but it could be worse I could be called Trump.

            #44419
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            ModdIt
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              T430, agree, i have one with hi res screen. only caveat I know is that the ribbon cable from keyboard is sensitive and keyboards discontinued by Lenovo. You can protect the keyboard ribbon cable by gently wrapping in wide Kapton tape, or cut foil to size, that is cheap and easy to find now thanks to 3d printers. Was a Lenovo recommended modification.
              On T series fitting an SSD is a matter of seconds. Here in Germany price of Laptop is crazy at present.

              Depending on the amount of room in your drive bay an ssd could probably fit your present device with adapter usage. I have used a BI directional SATA IDE converter to fit a modern drive in an older computer, it works fine. delivery was about 3 weeks though as directly from China. JM20330 Chipset is good. Difficulty is finding an adapter with fitting dimensions.

              #44486
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              dee64
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                @Moddit. Thanks for the tips on the ribbon cable. Interesting that you could fit a modern SATA drive into an ATA I will keep that in mind.
                Last night I finished tweaking my 19.2 setup and decided to run snapshot to make a backup. I noticed that at the beginning of the process snapshot reported that the desktop config file had changed and it would continue to try to read the file this went on for a while until eventually snapshot completed, it created the md5sum and as expected when I checked it it failed. I was curious about the desktop config file changing especially as I prefer a completely blank desktop, no conky no icons and taskbar set to auto hide, I realize there are background services etc but even so.
                I decided to reboot, this time I did nothing I left the computer to stand for about 15 mins then I created another snapshot, this time there was no trying to read the desktop config file and snapshot completed, created the md5sum and when I checked it,—— it passed!! I fell off my chair hit my head on the corner of the desk and had to go to hospital and was diagnosed with extreme confusion the doctor was quite clear I did not have concussion but I was extremely confused.
                This morning after a very restless night dreaming of md5sums, I decided to run the snapshot process again, I checked the md5sum at the end of the process and ——– it failed, (audible sigh of relief) Back to normal so all is good in the world!!

                #44896
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                dee64
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                  RESOLVED. Update kernel from 4.9 to 4.19. Got pissed off with getting nowhere.

                  #44948
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                  Xecure
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                    Great to know something worked.

                    antiX Live system enthusiast.
                    General Live Boot Parameters for antiX.

                    #44949
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                    ModdIt
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                      Semi off topic: Adapter SATA IDE Bi Directional is in use in a desktop too,
                      ALL/many modern burners are tinny boxes with a bit of cheap rubbish inside.
                      Opened a crappy modern drive recently, even the laser diode was a piece of junk.
                      Old ones can engrave wood or cut paper with a proper driver.
                      Using an adapter I bought from CSL. An old LITE ON IDE does most of my backup
                      to DVD stuff. Photo and Video. That would probably burn a beer mat with data.

                      Years ago those high quality drives were highly sought after.

                      When I get frustrated, confused, or bang my head on a desk my doctor gives
                      me a prescription for a week of windows 10 in a padded room.
                      Cures me in minutes.

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