Re: Taming The Data Destroyer

Date	2025-11-19 18:23 -0500
Subject	Re: Taming The Data Destroyer
Newsgroups	comp.os.linux.misc
References	(7 earlier) <pqktulxh6u.ln2@Telcontar.valinor> <10fh9it$1dmda$1@dont-email.me> <61luulxffm.ln2@Telcontar.valinor> <10fihq5$1p41c$6@dont-email.me> <691cdb96@news.ausics.net>
From	c186282 <c186282@nnada.net>
Organization	wokiesux
Message-ID	<8OWdnVtgGpwazIP0nZ2dnZfqnPWdnZ2d@giganews.com> (permalink)

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On 11/18/25 15:48, Computer Nerd Kev wrote:
> Lawrence D'Oliveiro <ldo@nz.invalid> wrote:
>> On Tue, 18 Nov 2025 17:55:34 +0100, Carlos E.R. wrote:
>>>       fdisk -l /dev/disk/by-id/$DISKID  > $DISKNAME-partition_table_fdisk.out
>>
>> This does display actual sector numbers (along with rounded total
>> sizes), but I don't think this is a useful format for restoration.
> 
> In the real world the replacement drive after one has died often
> isn't exactly the same size as the last one so I want to read the
> former partition layout manually then manually create something
> like it on the new drive, but with sizes adjusted to suit.
> 
>>>       dd if=/dev/disk/by-id/$DISKID of=$DISKNAME-mbr count=1
>>
>> This I wouldn't bother with. Why? Because restoring it will wipe out
>> your bootloader.
> 
> It should restore your bootloader, although if you've fiddled with
> the partitions on the new drive then that bootloader might not
> work anymore.

   Trick I learned the hard way ... when initially
   setting up disk partitions do NOT use the ENTIRE
   drive ... but leave maybe 100mb or so free space
   at the end. You won't miss that on a 4/8+ tb drive
   in the least but it will sometimes get you around
   the slight size differences between even supposedly
   identical drive models. Then you can use 'dd' to
   easily restore a full-sized partition backup.

   Some utilities (more of them for Win) make 'sparse'
   partition backups and CAN do your abovementioned
   math to re-size to fit.

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Taming The Data Destroyer Lawrence D’Oliveiro <ldo@nz.invalid> - 2025-11-17 02:31 +0000
  Re: Taming The Data Destroyer rbowman <bowman@montana.com> - 2025-11-17 04:18 +0000
    Re: Taming The Data Destroyer Marc Haber <mh+usenetspam1118@zugschl.us> - 2025-11-17 10:42 +0100
      Re: Taming The Data Destroyer Lawrence D’Oliveiro <ldo@nz.invalid> - 2025-11-18 01:10 +0000
        Re: Taming The Data Destroyer c186282 <c186282@nnada.net> - 2025-11-17 21:08 -0500
    Re: Taming The Data Destroyer "Carlos E.R." <robin_listas@es.invalid> - 2025-11-17 12:51 +0100
  Re: Taming The Data Destroyer jayjwa <jayjwa@atr2.ath.cx.invalid> - 2025-11-17 12:55 -0500
    Re: Taming The Data Destroyer not@telling.you.invalid (Computer Nerd Kev) - 2025-11-18 07:06 +1000
      Re: Taming The Data Destroyer c186282 <c186282@nnada.net> - 2025-11-17 19:00 -0500
        Re: Taming The Data Destroyer Computer Nerd Kev <not@telling.you.invalid> - 2025-11-18 16:31 +1000
          Re: Taming The Data Destroyer "Carlos E.R." <robin_listas@es.invalid> - 2025-11-18 07:46 +0100
            Re: Taming The Data Destroyer c186282 <c186282@nnada.net> - 2025-11-18 02:12 -0500
              Re: Taming The Data Destroyer rbowman <bowman@montana.com> - 2025-11-18 23:02 +0000
          Re: Taming The Data Destroyer c186282 <c186282@nnada.net> - 2025-11-18 02:01 -0500
            Re: Taming The Data Destroyer Ralf Fassel <ralfixx@gmx.de> - 2025-11-18 16:24 +0100
              Re: Taming The Data Destroyer The Natural Philosopher <tnp@invalid.invalid> - 2025-11-18 15:30 +0000
                Re: Taming The Data Destroyer Lawrence D’Oliveiro <ldo@nz.invalid> - 2025-11-18 22:31 +0000
              Re: Taming The Data Destroyer "Carlos E.R." <robin_listas@es.invalid> - 2025-11-18 17:49 +0100
                Re: Taming The Data Destroyer c186282 <c186282@nnada.net> - 2025-11-19 18:32 -0500
                Re: Taming The Data Destroyer "Carlos E.R." <robin_listas@es.invalid> - 2025-11-20 12:57 +0100
                Re: Taming The Data Destroyer Lawrence D’Oliveiro <ldo@nz.invalid> - 2025-11-20 22:53 +0000
                Re: Taming The Data Destroyer c186282 <c186282@nnada.net> - 2025-11-20 22:04 -0500
                Re: Taming The Data Destroyer c186282 <c186282@nnada.net> - 2025-11-20 22:17 -0500
          Re: Taming The Data Destroyer Lawrence D’Oliveiro <ldo@nz.invalid> - 2025-11-18 07:18 +0000
            Re: Taming The Data Destroyer c186282 <c186282@nnada.net> - 2025-11-18 02:34 -0500
              Re: Taming The Data Destroyer "Carlos E.R." <robin_listas@es.invalid> - 2025-11-18 08:46 +0100
                Re: Taming The Data Destroyer Lawrence D’Oliveiro <ldo@nz.invalid> - 2025-11-18 08:09 +0000
                Re: Taming The Data Destroyer "Carlos E.R." <robin_listas@es.invalid> - 2025-11-18 17:55 +0100
                Re: Taming The Data Destroyer Lawrence D’Oliveiro <ldo@nz.invalid> - 2025-11-18 19:35 +0000
                Re: Taming The Data Destroyer not@telling.you.invalid (Computer Nerd Kev) - 2025-11-19 06:48 +1000
                Re: Taming The Data Destroyer The Natural Philosopher <tnp@invalid.invalid> - 2025-11-18 21:40 +0000
                Re: Taming The Data Destroyer Lawrence D’Oliveiro <ldo@nz.invalid> - 2025-11-18 22:27 +0000
                Re: Taming The Data Destroyer Lawrence D’Oliveiro <ldo@nz.invalid> - 2025-11-18 22:26 +0000
                Re: Taming The Data Destroyer c186282 <c186282@nnada.net> - 2025-11-19 18:23 -0500
                Re: Taming The Data Destroyer "Carlos E.R." <robin_listas@es.invalid> - 2025-11-19 02:41 +0100
                Re: Taming The Data Destroyer c186282 <c186282@nnada.net> - 2025-11-18 03:17 -0500
                Re: Taming The Data Destroyer The Natural Philosopher <tnp@invalid.invalid> - 2025-11-18 12:12 +0000
                Re: Taming The Data Destroyer "Carlos E.R." <robin_listas@es.invalid> - 2025-11-18 17:53 +0100
                Re: Taming The Data Destroyer Lawrence D’Oliveiro <ldo@nz.invalid> - 2025-11-18 19:32 +0000
            Re: Taming The Data Destroyer Anssi Saari <anssi.saari@usenet.mail.kapsi.fi> - 2025-11-18 14:46 +0200
      Re: Taming The Data Destroyer candycanearter07 <candycanearter07@candycanearter07.nomail.afraid> - 2025-11-20 18:40 +0000
    Re: Taming The Data Destroyer Lawrence D’Oliveiro <ldo@nz.invalid> - 2025-11-18 00:58 +0000
      Re: Taming The Data Destroyer c186282 <c186282@nnada.net> - 2025-11-17 21:04 -0500
        Re: Taming The Data Destroyer rbowman <bowman@montana.com> - 2025-11-18 06:32 +0000
          Re: Taming The Data Destroyer c186282 <c186282@nnada.net> - 2025-11-18 02:07 -0500

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