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Re: fsck error on boot: /dev/sda1: UNEXPECTED INCONSISTENCY and Partition 1 does not start on physical sector boundary

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On 20.03.2021 13:50, David wrote:
> On Fri, 19 Mar 2021 at 19:53, Alexander V. Makartsev <avbetev@gmail.com> wrote:
>
>> To perform surface scans you can use SMART short and long scans, and also a program called "badblocks" from the package "e2fsprogs".
>> Be sure to unmount "/dev/sda1" before performing the scans.
> Hi, I wonder why you give this advice to unmount.
> Are you aware of a smartmontools reference document
> that gives this advice?
>
> If not using captive mode --captive option then
> I feel it is unnecessary.
>
> If using captive mode then I would suggest to unmount
> the entire drive, not just one partition.
>
> This is my casual understanding, corrections with
> authoritative sources are welcome.
>
Normally, a SMART scans are non-destructive and would finish with an 
error as soon as first bad block is found.
But if HDD would encounter a real bad block or a long sequence of them 
during test scans, there is always a chance that HDD won't recover right 
away and as a consequence, kernel will remount partitions as read-only 
making OS unresponsive, even if later HDD's controller will return to 
normal state after processing bad blocks.
For me it is simply a proactive measure, to prevent tests from 
interrupting mid-scan and any external interference. This might prevent 
a huge time waste when you scan a multi-terrabyte drives.
Additionally, a manpage for "badblocks" program strongly recommends to 
unmount partitions before performing non-destructive read-write or 
destructive write tests on the device.

If you look through information OP gathered for us, you should notice 
"/dev/sda" has only one partition with NTFS filesystem.

-- 
With kindest regards, Alexander.

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fsck error on boot: /dev/sda1: UNEXPECTED INCONSISTENCY and Partition  1 does not start on physical sector boundary Robbi Nespu <robbinespu@gmail.com> - 2021-03-18 14:40 +0100
  Re: fsck error on boot: /dev/sda1: UNEXPECTED INCONSISTENCY and  Partition 1 does not start on physical sector boundary IL Ka <kazakevichilya@gmail.com> - 2021-03-18 15:00 +0100
    Re: fsck error on boot: /dev/sda1: UNEXPECTED INCONSISTENCY and  Partition 1 does not start on physical sector boundary IL Ka <kazakevichilya@gmail.com> - 2021-03-18 15:50 +0100
      Re: fsck error on boot: /dev/sda1: UNEXPECTED INCONSISTENCY and  Partition 1 does not start on physical sector boundary David Wright <deblis@lionunicorn.co.uk> - 2021-03-18 16:30 +0100
        Re: fsck error on boot: /dev/sda1: UNEXPECTED INCONSISTENCY and  Partition 1 does not start on physical sector boundary IL Ka <kazakevichilya@gmail.com> - 2021-03-18 17:00 +0100
          Re: fsck error on boot: /dev/sda1: UNEXPECTED INCONSISTENCY and  Partition 1 does not start on physical sector boundary David Wright <deblis@lionunicorn.co.uk> - 2021-03-18 17:30 +0100
        Re: fsck error on boot: /dev/sda1: UNEXPECTED INCONSISTENCY and  Partition 1 does not start on physical sector boundary Robbi Nespu <robbinespu@gmail.com> - 2021-03-19 03:00 +0100
      Re: fsck error on boot: /dev/sda1: UNEXPECTED INCONSISTENCY and  Partition 1 does not start on physical sector boundary Felix Miata <mrmazda@earthlink.net> - 2021-03-18 16:40 +0100
        Re: fsck error on boot: /dev/sda1: UNEXPECTED INCONSISTENCY and  Partition 1 does not start on physical sector boundary IL Ka <kazakevichilya@gmail.com> - 2021-03-18 16:50 +0100
          Re: fsck error on boot: /dev/sda1: UNEXPECTED INCONSISTENCY and  Partition 1 does not start on physical sector boundary Felix Miata <mrmazda@earthlink.net> - 2021-03-18 17:00 +0100
      Re: fsck error on boot: /dev/sda1: UNEXPECTED INCONSISTENCY and  Partition 1 does not start on physical sector boundary Robbi Nespu <robbinespu@gmail.com> - 2021-03-19 02:50 +0100
    Re: fsck error on boot: /dev/sda1: UNEXPECTED INCONSISTENCY and  Partition 1 does not start on physical sector boundary Robbi Nespu <robbinespu@gmail.com> - 2021-03-18 15:50 +0100
  Re: fsck error on boot: /dev/sda1: UNEXPECTED INCONSISTENCY and  Partition 1 does not start on physical sector boundary "Alexander V. Makartsev" <avbetev@gmail.com> - 2021-03-18 19:10 +0100
    Re: fsck error on boot: /dev/sda1: UNEXPECTED INCONSISTENCY and  Partition 1 does not start on physical sector boundary Robbi Nespu <robbinespu@gmail.com> - 2021-03-19 03:30 +0100
      Re: fsck error on boot: /dev/sda1: UNEXPECTED INCONSISTENCY and  Partition 1 does not start on physical sector boundary "Alexander V. Makartsev" <avbetev@gmail.com> - 2021-03-19 10:00 +0100
        Re: fsck error on boot: /dev/sda1: UNEXPECTED INCONSISTENCY and  Partition 1 does not start on physical sector boundary David <bouncingcats@gmail.com> - 2021-03-20 10:00 +0100
          Re: fsck error on boot: /dev/sda1: UNEXPECTED INCONSISTENCY and  Partition 1 does not start on physical sector boundary "Alexander V. Makartsev" <avbetev@gmail.com> - 2021-03-20 11:20 +0100
            Re: fsck error on boot: /dev/sda1: UNEXPECTED INCONSISTENCY and  Partition 1 does not start on physical sector boundary Robbi Nespu <robbinespu@gmail.com> - 2021-03-23 05:10 +0100
  Re: fsck error on boot: /dev/sda1: UNEXPECTED INCONSISTENCY and  Partition 1 does not start on physical sector boundary Jochen Spieker <ml@well-adjusted.de> - 2021-03-19 17:30 +0100
    Re: fsck error on boot: /dev/sda1: UNEXPECTED INCONSISTENCY and  Partition 1 does not start on physical sector boundary "Alexander V. Makartsev" <avbetev@gmail.com> - 2021-03-19 18:40 +0100
      Re: fsck error on boot: /dev/sda1: UNEXPECTED INCONSISTENCY and  Partition 1 does not start on physical sector boundary Jochen Spieker <ml@well-adjusted.de> - 2021-03-19 22:10 +0100
      Re: fsck error on boot: /dev/sda1: UNEXPECTED INCONSISTENCY and  Partition 1 does not start on physical sector boundary Andy Smith <andy@strugglers.net> - 2021-03-20 18:10 +0100
        Re: fsck error on boot: /dev/sda1: UNEXPECTED INCONSISTENCY and  Partition 1 does not start on physical sector boundary "Alexander V. Makartsev" <avbetev@gmail.com> - 2021-03-20 20:30 +0100

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