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Groups > linux.debian.user > #195430

Re: Backup problem using "cp"

From Dan Norton <dnorton@mindspring.com>
Newsgroups linux.debian.user
Subject Re: Backup problem using "cp"
Date 2018-05-07 16:50 +0200
Message-ID <vMPCF-2tz-1@gated-at.bofh.it> (permalink)
References <vMO3U-1Cc-9@gated-at.bofh.it> <vMOnf-1Ku-11@gated-at.bofh.it> <vMOQn-1WX-7@gated-at.bofh.it>
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On Mon, 7 May 2018 09:59:01 -0400
Bob Weber <bobrweber@gmail.com> wrote:

> On 5/7/18 9:28 AM, Thomas Schmitt wrote:
> > Hi,
> >
> > Richard Owlett wrote:  
> >> My goal was to copy root and its sub-directory to a directory on
> >> another physical device.  
> > Well understood.
> > In a slightly different scenario (backup on Blu-ray) i do this
> > several times per day.
> >
> > But i would not dare to give the whole root tree as input to any
> > copying program or backup archiver. Not only because of the risk of
> > stepping on my own foot but also because there are several trees
> > which do not deserve backup or could even make trouble when being
> > fully read.
> >
> > In my root directory that would be: /dev /mnt /proc /run /sys
> > E.g. because of
> >    $ ls -l /proc/kcore
> >    -r-------- 1 root root 140737477877760 May  7 15:22 /proc/kcore
> >
> > (Somebody else shall try whether it's really readable and what
> > comes out. The announced size is nearly 128 TiB.)
> >
> >
> > Have a nice day :)
> >
> > Thomas
> >
> >  
> There is a program called rsnapshot that uses rsync for the actual
> work of copying but has a config file where you can supply exclude
> directories (like /media).  I just run "rsnapshot hourly" to copy my
> root file system before an apt upgrade command just in case a major
> problem occurs with the update.  The /proc /sys and /dev directories
> are not copied since they are "mounted" system directories.
> rsnapshot uses hard links between backups so only the changed files
> are actually copied.  The number of versions to keep is configured
> in /etc/rsnapshot.conf.
> 
> In using your cp command, rsync or rsnapshot it is very important
> that the destination filesystem be able to handle hard links and all
> the file attributes of a linux file system.  So make sure that at
> least there is an ext3 or ext4 type file system on the destination
> drive.  If you are not sure what file system is in use for the backup
> destination just run the mount command (as root) without any
> arguments and it will print out all the mounted file systems and
> types.

Another way to show fs type, without showing so much system stuff:

$ lsblk -f

This also shows labels (if any) and mount points.

 - Dan

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Thread

Backup problem using "cp" Richard Owlett <rowlett@cloud85.net> - 2018-05-06 16:30 +0200
  Re: Backup problem using "cp" "Thomas Schmitt" <scdbackup@gmx.net> - 2018-05-06 16:40 +0200
    Re: Backup problem using "cp" Richard Owlett <rowlett@cloud85.net> - 2018-05-06 16:50 +0200
      Re: Backup problem using "cp" "Thomas Schmitt" <scdbackup@gmx.net> - 2018-05-06 17:20 +0200
        Re: Backup problem using "cp" Cindy-Sue Causey <butterflybytes@gmail.com> - 2018-05-06 17:30 +0200
        Re: Backup problem using "cp" Richard Owlett <rowlett@cloud85.net> - 2018-05-07 13:40 +0200
          Re: Backup problem using "cp" "Thomas Schmitt" <scdbackup@gmx.net> - 2018-05-07 14:10 +0200
            Re: Backup problem using "cp" Richard Owlett <rowlett@cloud85.net> - 2018-05-07 15:10 +0200
              Re: Backup problem using "cp" "Thomas Schmitt" <scdbackup@gmx.net> - 2018-05-07 15:30 +0200
                Re: Backup problem using "cp" Bob Weber <bobrweber@gmail.com> - 2018-05-07 16:00 +0200
                Re: Backup problem using "cp" Dan Norton <dnorton@mindspring.com> - 2018-05-07 16:50 +0200
                Re: Backup problem using "cp" Richard Owlett <rowlett@cloud85.net> - 2018-05-07 16:10 +0200
                Re: Backup problem using "cp" David Wright <deblis@lionunicorn.co.uk> - 2018-05-08 03:10 +0200
              Re: Backup problem using "cp" Kushal Kumaran <kushal@locationd.net> - 2018-05-07 19:20 +0200
                Re: Backup problem using "cp" Jude DaShiell <jdashiel@panix.com> - 2018-05-07 20:00 +0200
            Running of rrequested tests - [was Re: Backup problem using "cp"] Richard Owlett <rowlett@cloud85.net> - 2018-05-08 17:20 +0200
              Re: Running of rrequested tests - [was Backup problem using "cp"] "Thomas Schmitt" <scdbackup@gmx.net> - 2018-05-08 17:50 +0200
                Re: Running of rrequested tests - [was Backup problem using "cp"] Richard Owlett <rowlett@cloud85.net> - 2018-05-08 19:40 +0200
                Re: Running of rrequested tests - [was Backup problem using "cp"] "Thomas Schmitt" <scdbackup@gmx.net> - 2018-05-08 22:30 +0200
                Re: Running of rrequested tests - [was Backup problem using "cp"] Richard Owlett <rowlett@cloud85.net> - 2018-05-09 14:00 +0200
                Re: Running of rrequested tests - [was Backup problem using "cp"] "Thomas Schmitt" <scdbackup@gmx.net> - 2018-05-09 15:00 +0200
              Re: Running of rrequested tests - [was Re: Backup problem using "cp"] The Wanderer <wanderer@fastmail.fm> - 2018-05-08 17:50 +0200
                Re: Running of rrequested tests - [was Re: Backup problem using "cp"] Richard Owlett <rowlett@cloud85.net> - 2018-05-08 19:50 +0200
                Re: Running of rrequested tests - [was Re: Backup problem using "cp"] The Wanderer <wanderer@fastmail.fm> - 2018-05-09 04:50 +0200
                Re: Running of rrequested tests - [was Re: Backup problem using "cp"] Richard Owlett <rowlett@cloud85.net> - 2018-05-09 14:30 +0200
                Re: Running of rrequested tests - [was Re: Backup problem using "cp"] The Wanderer <wanderer@fastmail.fm> - 2018-05-09 14:50 +0200
                Re: Running of rrequested tests - [was Re: Backup problem using "cp"] Richard Hector <richard@walnut.gen.nz> - 2018-05-09 15:00 +0200
                Re: Running of rrequested tests - [was Re: Backup problem using "cp"] David Wright <deblis@lionunicorn.co.uk> - 2018-05-09 22:30 +0200
                Re: Running of rrequested tests - [was Re: Backup problem using "cp"] Greg Wooledge <wooledg@eeg.ccf.org> - 2018-05-09 22:40 +0200
                Re: Running of rrequested tests - [was Re: Backup problem using "cp"] David Wright <deblis@lionunicorn.co.uk> - 2018-05-10 16:00 +0200
                Re: Running of rrequested tests - [was Re: Backup problem using "cp"] The Wanderer <wanderer@fastmail.fm> - 2018-05-10 05:00 +0200
                Re: Running of rrequested tests - [was Re: Backup problem using "cp"] David Wright <deblis@lionunicorn.co.uk> - 2018-05-10 16:20 +0200
                Re: Running of rrequested tests - [was Re: Backup problem using "cp"] David Wright <deblis@lionunicorn.co.uk> - 2018-05-08 21:50 +0200
          Re: Backup problem using "cp" Dan Purgert <dan@djph.net> - 2018-05-07 14:10 +0200
            Re: Backup problem using "cp" Richard Owlett <rowlett@cloud85.net> - 2018-05-07 15:00 +0200
              Re: Backup problem using "cp" Dan Purgert <dan@djph.net> - 2018-05-07 15:20 +0200
              Re: Backup problem using "cp" Andy Smith <andy@strugglers.net> - 2018-05-07 15:30 +0200
                Re: Backup problem using "cp" "Thomas Schmitt" <scdbackup@gmx.net> - 2018-05-07 16:00 +0200
                Re: Backup problem using "cp" Richard Owlett <rowlett@cloud85.net> - 2018-05-07 16:20 +0200
                Re: Backup problem using "cp" David Wright <deblis@lionunicorn.co.uk> - 2018-05-08 03:20 +0200
                Re: Backup problem using "cp" Richard Owlett <rowlett@cloud85.net> - 2018-05-07 16:10 +0200
          Re: Backup problem using "cp" David Griffith <dave@661.org> - 2018-05-07 15:00 +0200
            Re: Backup problem using "cp" Richard Owlett <rowlett@cloud85.net> - 2018-05-07 15:50 +0200
            Re: Backup problem using "cp" Richard Hector <richard@walnut.gen.nz> - 2018-05-07 16:00 +0200
              Re: Backup problem using "cp" Richard Owlett <rowlett@cloud85.net> - 2018-05-07 16:40 +0200
          Re: Backup problem using "cp" Charlie Gibbs <cgibbs@surfnaked.ca> - 2018-05-07 20:30 +0200
          Re: Backup problem using "cp" David Wright <deblis@lionunicorn.co.uk> - 2018-05-08 03:00 +0200
  Re: Backup problem using "cp" Dan Purgert <dan@djph.net> - 2018-05-06 16:50 +0200
  Re: Backup problem using "cp" Pascal Hambourg <pascal@plouf.fr.eu.org> - 2018-05-06 17:40 +0200
    Re: Backup problem using "cp" Richard Owlett <rowlett@cloud85.net> - 2018-05-06 21:00 +0200
      Re: Backup problem using "cp" David Wright <deblis@lionunicorn.co.uk> - 2018-05-07 00:00 +0200
      Re: Backup problem using "cp" Jonathan Dowland <jmtd@debian.org> - 2018-05-10 10:30 +0200
        Re: Running of rrequested tests - [was Backup problem using "cp"] "Thomas Schmitt" <scdbackup@gmx.net> - 2018-05-10 11:30 +0200
        Re: Backup problem using "cp" David Wright <deblis@lionunicorn.co.uk> - 2018-05-10 15:40 +0200
  SUCCESS!!!! - was {Re: Backup problem using "cp"} Richard Owlett <rowlett@cloud85.net> - 2018-05-11 15:10 +0200
    Re: SUCCESS!!!! - was {Re: Backup problem using "cp"} <tomas@tuxteam.de> - 2018-05-11 15:20 +0200
      Re: SUCCESS!!!! - was {Re: Backup problem using "cp"} Richard Owlett <rowlett@cloud85.net> - 2018-05-11 15:30 +0200
        Re: SUCCESS!!!! - was {Re: Backup problem using "cp"} <tomas@tuxteam.de> - 2018-05-11 17:30 +0200
        Re: SUCCESS!!!! - was {Re: Backup problem using "cp"} Curt <curty@free.fr> - 2018-05-11 17:40 +0200
          Re: SUCCESS!!!! - was {Re: Backup problem using "cp"} Richard Owlett <rowlett@cloud85.net> - 2018-05-11 19:30 +0200
          Re: SUCCESS!!!! - was {Re: Backup problem using "cp"} Gene Heskett <gheskett@shentel.net> - 2018-05-11 19:50 +0200
            Re: SUCCESS!!!! - was {Re: Backup problem using "cp"} Richard Owlett <rowlett@cloud85.net> - 2018-05-11 22:30 +0200
    Re: SUCCESS!!!! - was {Re: Backup problem using "cp"} Pascal Hambourg <pascal@plouf.fr.eu.org> - 2018-05-11 16:50 +0200
      Re: SUCCESS!!!! - was {Re: Backup problem using "cp"} Richard Owlett <rowlett@cloud85.net> - 2018-05-11 20:00 +0200
        Re: SUCCESS!!!! - was {Re: Backup problem using "cp"} Pascal Hambourg <pascal@plouf.fr.eu.org> - 2018-05-11 21:50 +0200
          Re: SUCCESS!!!! - was {Re: Backup problem using "cp"} Richard Owlett <rowlett@cloud85.net> - 2018-05-11 22:40 +0200
    Re: SUCCESS!!!! - was {Re: Backup problem using "cp"} David Wright <deblis@lionunicorn.co.uk> - 2018-05-11 17:30 +0200

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