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Re: Two questions about LUKS in a file container

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On 2020-09-12 12:14, Charles Curley wrote:
> On Sat, 12 Sep 2020 12:10:48 -0400
> rhkramer@gmail.com wrote:
> 
>> I'm thinking about putting my backup encrypted files in a LUKS
>> filesystem within a file instead of on a dedicated partition (for a
>> few reasons).
> 
> Why do you want a file system inside a file? The only reason I can
> think of to do that is to emulate the file system of another computer,
> e.g. a virtual machine.

There are many use-cases.  In the context of rsync(1) backups, each file 
contains one backup filesystem.  If you have seven such files, you can 
rotate them daily and one complete backup for each day of the week.  If 
you set the backup image file permissions correctly, you can easily view 
and/or move those files using standard tools.  But, one challenge is 
finding the "right" file size.  Some people use LVM inside the files to 
provide additional flexibility.


David

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Thread

Two questions about LUKS in a file container rhkramer@gmail.com - 2020-09-12 18:20 +0200
  Re: Two questions about LUKS in a file container Hans <hans.ullrich@loop.de> - 2020-09-12 18:50 +0200
  Re: Two questions about LUKS in a file container Bob Weber <bobrweber@gmail.com> - 2020-09-12 21:10 +0200
    Re: Two questions about LUKS in a file container Andrei POPESCU <andreimpopescu@gmail.com> - 2020-09-16 11:00 +0200
      Re: Two questions about LUKS in a file container David Christensen <dpchrist@holgerdanske.com> - 2020-09-16 22:00 +0200
        Re: Two questions about LUKS in a file container David Wright <deblis@lionunicorn.co.uk> - 2020-09-16 23:40 +0200
          Re: Two questions about LUKS in a file container David Christensen <dpchrist@holgerdanske.com> - 2020-09-17 22:40 +0200
            Re: Two questions about LUKS in a file container David Wright <deblis@lionunicorn.co.uk> - 2020-09-19 17:00 +0200
              Re: Two questions about LUKS in a file container David Christensen <dpchrist@holgerdanske.com> - 2020-09-19 23:10 +0200
              Re: Two questions about LUKS in a file container Andrei POPESCU <andreimpopescu@gmail.com> - 2020-09-21 08:00 +0200
                Re: Two questions about LUKS in a file container David Wright <deblis@lionunicorn.co.uk> - 2020-09-21 16:30 +0200
  Re: Two questions about LUKS in a file container Charles Curley <charlescurley@charlescurley.com> - 2020-09-12 21:40 +0200
    Re: Two questions about LUKS in a file container David Christensen <dpchrist@holgerdanske.com> - 2020-09-13 01:00 +0200
  Re: Two questions about LUKS in a file container David Christensen <dpchrist@holgerdanske.com> - 2020-09-13 00:20 +0200
    Re: Two questions about LUKS in a file container rhkramer@gmail.com - 2020-09-13 02:10 +0200
  Re: Two questions about LUKS in a file container David Wright <deblis@lionunicorn.co.uk> - 2020-09-13 17:20 +0200
    Re: Two questions about LUKS in a file container David <bouncingcats@gmail.com> - 2020-09-13 17:30 +0200

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