[rear-users] rear mkbackup on domU (xen) doesn't really work

Robert Owens rowens at fdrinnovation.com
Tue Oct 20 17:30:39 CEST 2015


It almost looks like you've restored an incremental backup without also 
restoring the prior full backup.  A lot of backups software handles that 
for you, but maybe yours doesn't?

On 10/20/2015 11:06 AM, Oliver Hoffmann wrote:
> OK, step by step now.
> 1. recover myhost from the boot menue
> 2. rear recover
> 3. Bareos says restore job finished
> 4. ls /mnt/local:
> boot
> etc
> home
> lost+found
> root
> usr
>
> 5. chroot doesn't work as there is no bin or sbin.
>
> So that is the problem. Where comes sbin and so on come from? What has
> to be in the bareos backup and what is covered by creating an ISO?
>
> Thanks,
>
> Oliver
>
> On 20 October 2015 at 16:53, Schlomo Schapiro <schlomo at schapiro.org
> <mailto:schlomo at schapiro.org>> wrote:
>
>     Hi Oliver,
>
>     if /sbin/init is missing: Was it actually restored?
>
>     A good check is also "chroot /mnt/local bash -i"
>
>     Regards,
>     Schlomo
>
>     On 20 October 2015 at 16:43, Oliver Hoffmann <oliver at g.dom.de
>     <mailto:oliver at g.dom.de>> wrote:
>
>         Well, everything to the point of rebooting after the whole
>         recovery. Everything in /mnt/local looked good. Seemingly,
>         because while booting I get: Target file system doesn't have
>         requested /sbin/init No init and so on.
>
>         Automatic recover is even worse:
>
>         Cannot set terminal process group: Inappropriate ioctl device
>
>         Then again after rear recover it says You cannot run rear from
>         within the Relax-and-Recover shell!
>
>         What went wrong?
>
>         Cheers,
>
>         Oliver
>
>
>         On 20 October 2015 at 15:26, Oliver Hoffmann <oliver at g.dom.de
>         <mailto:oliver at g.dom.de>> wrote:
>
>             I just saw the mingetty issue. After installing that
>             everything works as expected! Thank you!!
>
>             Oliver
>
>             On 20 October 2015 at 15:20, Oliver Hoffmann
>             <oliver at g.dom.de <mailto:oliver at g.dom.de>> wrote:
>
>                 Thank you, Rob. I tried BACKUP=REQUESTRESTORE but it
>                 drops me to * * * Rescue system is ready * * * as well.
>                 No login. Furthermore I see modprobe: FATAL: Module
>                 xenblk not found.
>
>                 Cheers,
>
>                 Oliver
>
>                 On 9 October 2015 at 16:16, Robert Owens
>                 <rowens at fdrinnovation.com
>                 <mailto:rowens at fdrinnovation.com>> wrote:
>
>                     I'm new to ReaR as well, but I think you need to
>                     specify a backup method in local.conf.  The default
>                     is BACKUP=REQUESTRESTORE.  'man rear' refers to this
>                     as "Not really a backup method at all..."  It seems
>                     its purpose is to do just what you've seen:  provide
>                     a rescue system and leave the backup/restore up to you.
>
>                     Take a look at the section of the man page titled
>                     "BACKUP SOFTWARE INTEGRATION".  There is a list of
>                     both commercial and open source backup software that
>                     you can choose to use for your backup and restore.
>
>                     -Rob
>
>
>                     On 10/8/2015 10:13 AM, Oliver Hoffmann wrote:
>
>                         Hi list,
>
>
>                         I am new to rear. Alas there's not too much to
>                         find on the
>                         net or in the documentation given that you try
>                         to do something special.
>
>                         So, I did rear -v mkbackup on a dumU (Ubuntu
>                         14.04.3 LTS) which runs
>                         on Xenserver 6.2. I did get an iso but problems are:
>
>                         -apparently it just creates a rescue system
>                         without the data
>                         -I can boot from that iso but then there is no data
>                         -if I do rear recover it says something like
>                         "You cannot run recover
>                            from this shell"
>
>                         My local.conf:
>
>                         BACKUP_PROG_COMPRESS_OPTIONS="--gzip"
>                         BACKUP_PROG_COMPRESS_SUFFIX=".gz"
>                         OUTPUT=ISO
>
>                         The goal is to create a bootable iso with all
>                         the data and put that
>                         somewhere. Let's say on nfs or maybe even on a
>                         Bacula/Bareos server.
>
>                         Is that even possible? All I found was this:
>
>                         http://webcache.googleusercontent.com/search?q=cache:tXhGLDXHGJYJ:sourceforge.net/p/rear/mailman/message/27980017/+&cd=4&hl=de&ct=clnk&gl=de
>
>                         Cheers,
>
>                         chillax
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>                     --
>                     Rob Owens
>                     Innovation Data Processing
>                     973-890-7300 <tel:973-890-7300>
>                     rowens at fdrinnovation.com
>                     <mailto:rowens at fdrinnovation.com>
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Rob Owens
Innovation Data Processing
973-890-7300
rowens at fdrinnovation.com



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