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Re: Where do I find the definitive man page for mdadm?

From Greg Wooledge <greg@wooledge.org>
Newsgroups linux.debian.user
Subject Re: Where do I find the definitive man page for mdadm?
Date 2021-11-14 05:10 +0100
Message-ID <Djf06-2yj-5@gated-at.bofh.it> (permalink)
References <Dj9e1-7gR-5@gated-at.bofh.it> <DjeQp-2fQ-1@gated-at.bofh.it>
Organization linux.* mail to news gateway

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On Sat, Nov 13, 2021 at 08:37:19PM -0700, Tom Dial wrote:
> Device UUIDs are kind of ugly, but in my experience they are stable
> across both OS updates and physical movement of the file systems they
> contain as long as what is copied is the disk partition. I do not think
> copying a file system (e. g., with cp)  to a new (partitioned) disk
> would retain the block device UUID. My practice has been to copy raw
> partitions, to a new disk, then expand the file system as appropriate.

Copying the contents of a file system, by using rsync or cp -a or
similar commands, would not retain the file system's UUID.

Copying the raw file system itself, by using "cp /dev/sda1 /dev/sdb1"
or similar, should copy the file system's UUID over along with the
contents, and the empty space, and the deleted data, and so on.

I don't know anything about "block device UUIDs".

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Thread

Where do I find the definitive man page for mdadm? Gene Heskett <gheskett@shentel.net> - 2021-11-12 14:10 +0100
  Re: Where do I find the definitive man page for mdadm? Dan Ritter <dsr@randomstring.org> - 2021-11-12 15:10 +0100
    Re: Where do I find the definitive man page for mdadm? Gene Heskett <gheskett@shentel.net> - 2021-11-12 15:30 +0100
    Re: Where do I find the definitive man page for mdadm? Gene Heskett <gheskett@shentel.net> - 2021-11-12 15:50 +0100
      Re: Where do I find the definitive man page for mdadm? Dan Ritter <dsr@randomstring.org> - 2021-11-12 16:40 +0100
        Re: Where do I find the definitive man page for mdadm? Gene Heskett <gheskett@shentel.net> - 2021-11-12 17:50 +0100
          Re: Where do I find the definitive man page for mdadm? The Wanderer <wanderer@fastmail.fm> - 2021-11-12 17:50 +0100
            Re: Where do I find the definitive man page for mdadm? Gene Heskett <gheskett@shentel.net> - 2021-11-12 18:20 +0100
          Re: Where do I find the definitive man page for mdadm? Andy Smith <andy@strugglers.net> - 2021-11-13 13:40 +0100
            Re: Where do I find the definitive man page for mdadm? Gene Heskett <gheskett@shentel.net> - 2021-11-13 14:10 +0100
            Re: Where do I find the definitive man page for mdadm? Gene Heskett <gheskett@shentel.net> - 2021-11-13 14:40 +0100
              Re: Where do I find the definitive man page for mdadm? Andy Smith <andy@strugglers.net> - 2021-11-13 15:00 +0100
                Re: Where do I find the definitive man page for mdadm? Gene Heskett <gheskett@shentel.net> - 2021-11-13 15:30 +0100
                Re: Where do I find the definitive man page for mdadm? Andy Smith <andy@strugglers.net> - 2021-11-13 16:00 +0100
                Re: Where do I find the definitive man page for mdadm? David Wright <deblis@lionunicorn.co.uk> - 2021-11-13 17:40 +0100
                Re: Where do I find the definitive man page for mdadm? Gene Heskett <gheskett@shentel.net> - 2021-11-13 19:20 +0100
                Re: Where do I find the definitive man page for mdadm? Andy Smith <andy@strugglers.net> - 2021-11-13 21:50 +0100
                Re: Where do I find the definitive man page for mdadm? Gene Heskett <gheskett@shentel.net> - 2021-11-13 23:00 +0100
                Re: Where do I find the definitive man page for mdadm? Charles Curley <charlescurley@charlescurley.com> - 2021-11-14 00:10 +0100
                Re: Where do I find the definitive man page for mdadm? Greg Wooledge <greg@wooledge.org> - 2021-11-14 00:40 +0100
                Re: Where do I find the definitive man page for mdadm? Gene Heskett <gheskett@shentel.net> - 2021-11-14 01:30 +0100
                Re: Where do I find the definitive man page for mdadm? Andy Smith <andy@strugglers.net> - 2021-11-14 09:10 +0100
                Re: Where do I find the definitive man page for mdadm? David Wright <deblis@lionunicorn.co.uk> - 2021-11-14 18:00 +0100
                Re: Where do I find the definitive man page for mdadm? "Thomas Schmitt" <scdbackup@gmx.net> - 2021-11-14 19:40 +0100
                Re: Where do I find the definitive man page for mdadm? David Wright <deblis@lionunicorn.co.uk> - 2021-11-15 02:40 +0100
                Re: Where do I find the definitive man page for mdadm? "Thomas Schmitt" <scdbackup@gmx.net> - 2021-11-15 09:10 +0100
                Re: Where do I find the definitive man page for mdadm? David Wright <deblis@lionunicorn.co.uk> - 2021-11-16 05:30 +0100
                Re: Where do I find the definitive man page for mdadm? Tom Dial <tddial@comcast.net> - 2021-11-14 05:00 +0100
                Re: Where do I find the definitive man page for mdadm? Greg Wooledge <greg@wooledge.org> - 2021-11-14 05:10 +0100
                Re: Where do I find the definitive man page for mdadm? Gene Heskett <gheskett@shentel.net> - 2021-11-14 05:40 +0100
      Re: Where do I find the definitive man page for mdadm? Charles Curley <charlescurley@charlescurley.com> - 2021-11-12 18:10 +0100
        Re: Where do I find the definitive man page for mdadm? Charles Curley <charlescurley@charlescurley.com> - 2021-11-12 19:00 +0100
      Re: Where do I find the definitive man page for mdadm? "Andrew M.A. Cater" <amacater@einval.com> - 2021-11-12 18:10 +0100
        Re: Where do I find the definitive man page for mdadm? Gene Heskett <gheskett@shentel.net> - 2021-11-12 20:10 +0100
          Re: Where do I find the definitive man page for mdadm? Dan Ritter <dsr@randomstring.org> - 2021-11-12 21:40 +0100
            Re: Where do I find the definitive man page for mdadm? Gene Heskett <gheskett@shentel.net> - 2021-11-12 23:00 +0100
              Re: Where do I find the definitive man page for mdadm? The Wanderer <wanderer@fastmail.fm> - 2021-11-12 23:10 +0100
                Re: Where do I find the definitive man page for mdadm? Gene Heskett <gheskett@shentel.net> - 2021-11-13 01:00 +0100
    Re: Where do I find the definitive man page for mdadm? Gene Heskett <gheskett@shentel.net> - 2021-11-12 22:30 +0100
      Re: Where do I find the definitive man page for mdadm? Dan Ritter <dsr@randomstring.org> - 2021-11-13 12:30 +0100
        Re: Where do I find the definitive man page for mdadm? Gene Heskett <gheskett@shentel.net> - 2021-11-13 13:30 +0100
          Re: Where do I find the definitive man page for mdadm? The Wanderer <wanderer@fastmail.fm> - 2021-11-13 13:50 +0100
            Re: Where do I find the definitive man page for mdadm? Gene Heskett <gheskett@shentel.net> - 2021-11-13 15:00 +0100
          Re: Where do I find the definitive man page for mdadm? David Wright <deblis@lionunicorn.co.uk> - 2021-11-13 17:50 +0100
            Re: Where do I find the definitive man page for mdadm? Gene Heskett <gheskett@shentel.net> - 2021-11-13 19:40 +0100
  Re: Where do I find the definitive man page for mdadm? Charles Curley <charlescurley@charlescurley.com> - 2021-11-12 15:10 +0100
    Re: Where do I find the definitive man page for mdadm? Gene Heskett <gheskett@shentel.net> - 2021-11-12 15:30 +0100
      Re: Where do I find the definitive man page for mdadm? Andy Smith <andy@strugglers.net> - 2021-11-12 16:40 +0100
        Re: Where do I find the definitive man page for mdadm? Gene Heskett <gheskett@shentel.net> - 2021-11-12 18:10 +0100
          Re: Where do I find the definitive man page for mdadm? Charles Curley <charlescurley@charlescurley.com> - 2021-11-12 19:20 +0100
            Re: Where do I find the definitive man page for mdadm? Gene Heskett <gheskett@shentel.net> - 2021-11-12 20:20 +0100
              Re: Where do I find the definitive man page for mdadm? Charles Curley <charlescurley@charlescurley.com> - 2021-11-13 00:10 +0100
                Re: Where do I find the definitive man page for mdadm? Andy Smith <andy@strugglers.net> - 2021-11-13 12:40 +0100
        Re: Where do I find the definitive man page for mdadm? Dan Ritter <dsr@randomstring.org> - 2021-11-12 18:20 +0100
          Re: Where do I find the definitive man page for mdadm? Gene Heskett <gheskett@shentel.net> - 2021-11-12 19:50 +0100
            Re: Where do I find the definitive man page for mdadm? Charles Curley <charlescurley@charlescurley.com> - 2021-11-12 23:50 +0100
              Re: Where do I find the definitive man page for mdadm? Gene Heskett <gheskett@shentel.net> - 2021-11-13 01:10 +0100
          Re: Where do I find the definitive man page for mdadm? Andy Smith <andy@strugglers.net> - 2021-11-13 12:50 +0100
      Re: Where do I find the definitive man page for mdadm? Charles Curley <charlescurley@charlescurley.com> - 2021-11-12 17:50 +0100
        Re: Where do I find the definitive man page for mdadm? Gene Heskett <gheskett@shentel.net> - 2021-11-12 18:10 +0100
          Re: Where do I find the definitive man page for mdadm? Charles Curley <charlescurley@charlescurley.com> - 2021-11-12 19:00 +0100
            Re: Where do I find the definitive man page for mdadm? Gene Heskett <gheskett@shentel.net> - 2021-11-12 20:30 +0100
              Re: Where do I find the definitive man page for mdadm? Charles Curley <charlescurley@charlescurley.com> - 2021-11-13 00:20 +0100
  Re: Where do I find the definitive man page for mdadm? David Wright <deblis@lionunicorn.co.uk> - 2021-11-12 15:30 +0100
    Re: Where do I find the definitive man page for mdadm? Gene Heskett <gheskett@shentel.net> - 2021-11-12 16:10 +0100

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