Re: how to test disk for bad sector

[Long Wind <longwind2@yahoo.com>]

it pass write test!  i really don't know where installation go wrong. in the past i installed debian 2 times from dvd, both failed.  today fedora installation fails. it's STRANGE.

it's Seagate 320G, i bought from 2nd-hand dealer, it's cheap. i can afford another disk if i need. it's waste of time to continue diagnose.

below is details of write test by badblocks:

[liveuser@localhost-live ~]$ sudo badblocks -wv /dev/sda1

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Checking for bad blocks in read-write mode

From block 0 to 14080971

Testing with pattern 0xaa: done                                               

Reading and comparing: done                                               

Testing with pattern 0x55: done                                               

Reading and comparing: done                                               

Testing with pattern 0xff: done                                               

Reading and comparing: done                                               

Testing with pattern 0x00: done                                               

Reading and comparing: done                                               

Pass completed, 0 bad blocks found. (0/0/0 errors)

[liveuser@localhost-live ~]$

On Saturday, August 29, 2020, 7:11:07 AM EDT, Long Wind <longwind2@yahoo.com> wrote:

Thank Alexander! i'll test it with write test.

On Saturday, August 29, 2020, 4:18:31 AM EDT, Alexander V. Makartsev <avbetev@gmail.com> wrote:

On 29.08.2020 07:59, Long Wind wrote:

installation of linux to sdb1 fails

i believe hard disk has bad sector

If hard drive has bad sectors or recently encountered them, information about this should be noted to hard drive's SMART table.
Alternatively, you can use "badblocks" program from "e2fsprogs" package to scan hard drive for bad blocks.
I'd perform tests on wiped clean hard drive with non-destructive read test first, followed by write test.
Testing media for bad blocks could be time consuming if hard drive is multiple terabytes in size.

i use e2fsck with -c, i.e. read-only test

it doesn't  report any error

-- 
With kindest regards, Alexander.

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