Graham,
Your script is the problem. Using $* causes the shell the resplit
arguments at whitespace. To preserve the arguments you need to put that in
quotes:
exec /bin/tar -c "$*"
Craig
On Sat, Apr 25, 2020 at 5:04 AM Graham Seaman <gra...@theseamans.net> wrote:
> Thanks Craig
>
> That's clearly the problem, but I'm still mystified.
>
> I have backuppc running on my home server; the storage is on a NAS NFS
> mounted on the home server. Backing up other hosts on my network (both
> full and incremental) over rsync works fine.
>
> The home server backs up using tar. The command in the log is:
>
> Running: /usr/bin/sudo /etc/backuppc/localtar/tar_create.sh -v -f - -C
> /etc --totals --newer=2020-04-22 21:18:10 .
>
> If I set
>
> $Conf{TarIncrArgs} = '--newer=$incrDate+ $fileList+';
>
>
> then incremental backups of the home server fail with:
>
> /bin/tar: Substituting -9223372036854775807 for unknown date format
> ‘2020-04-22\\’
> /bin/tar: 21\:18\:10: Cannot stat: No such file or directory
>
> If instead I set:
>
> $Conf{TarIncrArgs} = '--newer=$incrDate $fileList';
>
> then incremental backups fail with:
>
> /bin/tar: Option --after-date: Treating date '2020-04-22' as 2020-04-22
> 00:00:00
> /bin/tar: 21\:18\:10: Cannot stat: No such file or directory
>
> Could it be to do with my localtar/tar_create.sh? (I created this so
> long ago I no longer remember where it came from).
>
> This is just:
>
> #!/bin/sh -f
> exec /bin/tar -c $*
>
> Thanks again
>
> Graham
>
> On 25/04/2020 02:59, Craig Barratt via BackupPC-users wrote:
> > Graham,
> >
> > This is a problem with shell (likely ssh) escaping of arguments that
> > contain a space.
> >
> > For incremental backups a timestamp is passed as an argument to tar
> > running on the client. The argument should be a date and time, eg:
> >
> > --after-date 2020-04-22\ 21:18:10'
> >
> > Notice there needs to be a backslash before the space, so it is part of
> > a single argument, not two separate arguments.
> >
> > You can tell BackupPC to escape an argument (to protect it from passing
> > via ssh) by adding a "+" to the end of the argument name, eg:
> >
> > $Conf{TarIncrArgs} = '--newer=$incrDate+ $fileList+';
> >
> >
> > Craig
> >
> > On Fri, Apr 24, 2020 at 3:17 PM Graham Seaman <gra...@theseamans.net
> > <mailto:gra...@theseamans.net>> wrote:
> >
> >
> >
> >
> >
> >
> >
> >
> > Ok, I guess its this (from the start of XferLOG.bad):
> >
> > /bin/tar: Option --after-date: Treating date '2020-04-22' as
> 2020-04-22
> > 00:00:00
> > /bin/tar: 21\:18\:10: Cannot stat: No such file or directory
> >
> > which is kind of confusing, as it goes on to copy the rest of the
> > directory and then says '0 Errors'. Anyway, its correct that there
> is no
> > file called '21:18:10'. Any idea why it thinks there should be?
> >
> > Graham
> >
> >
> > On 24/04/2020 20:59, Craig Barratt via BackupPC-users wrote:
> > > Graham,
> > >
> > > Tar exit status of 512 means it encountered some sort of error
> > (eg, file
> > > read error) while it was running on the target client. Please
> look at
> > > the XferLOG.bad file carefully to see the specific error from tar.
> > >
> > > If you are unable to see the error, please send me the entire
> > > XferLOG.bad file?
> > >
> > > Craig
> > >
> > > On Fri, Apr 24, 2020 at 12:13 PM Graham Seaman
> > <gra...@theseamans.net <mailto:gra...@theseamans.net>
> > > <mailto:gra...@theseamans.net <mailto:gra...@theseamans.net>>>
> wrote:
> > >
> > > I have a persistent problem with backing up one host: I can do
> > a full
> > > backup, but an incremental backup fails on trying to transfer
> > the first
> > > directory:
> > >
> > > tarExtract: Done: 0 errors, 2 filesExist, 81381 sizeExist,
> 18122
> > > sizeExistComp, 2 filesTotal, 81381 sizeTotal
> > > Got fatal error during xfer (Tar exited with error 512 ()
> status)
> > > Backup aborted (Tar exited with error 512 () status)
> > >
> > > All other hosts work ok. So I'm guessing it must be a file
> > permission
> > > error. Looking at the files, everything seems to be owned by
> > > backuppc.backuppc, so I don't know where/what else to look
> > for. Any
> > > suggestions?
> > >
> > > Thanks
> > > Graham
> > >
> > >
> > > _______________________________________________
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