Drobo FS bei Fedora-Teersicherungen schlägt fehl w Eingabe / Ausgabefehler, Status "Child" zurückgegeben 1

Wir führen seit einiger Zeit tar / gzip-Backups auf Fedora 25 Linux-Servern durch und möchten sicherstellen, dass aquota.user-Dateien gesichert werden. Aus den Kommentaren in der Datei drobo-backup.conf haben wir Folgendes:

# Because aquota.user cannot have its atime reset, tar will give # an error status=2 if --atime-preserve is used when backing it up. # We don't want to lose the backup of this file but we also don't # want to routinely ignore tar status=2. Solution is to make # --atime-preserve a per-backup argument and omit it when backing # up aquota.user separately. 

Bei der Ausführung über cron wird die E-Mail-Benachrichtigung jedoch mit folgenden Informationen angezeigt:

/bin/tar: home/users/aquota.user: Cannot utime: Operation not permitted /bin/tar: Exiting with failure status due to previous errors  Backup of /home/users FAILED  Failed to rename /home-users-new.tgz to /home-users-FAILED.tgz: File exists Backed up /home/users/aquota.user to /home-users-aquota.user.tgz  gzip: stdout: Input/output error /bin/tar: Child returned status 1 /bin/tar: Error is not recoverable: exiting now 

Hier sind die Optionen in der Konfigurationsdatei:

tarargs= --one-file-system --warning=no-file-ignored --warning=no-file-changed --warning=no-file-removed backup = /home/users --atime-preserve --exclude=aquota.user --exclude=.gvfs --exclude=--exclude-ignore-recursive=S.gpg-agent --exclude=.adobe --exclude=.config/libvirt/qemu/lib/capabilities.monitor.sock --exclude=.dropbox --exclude=home/users/*/.cache --exclude=.fontconfig --exclude=csga/*/S.gpg-agent --exclude-caches-all backup = /home/users/aquota.user backup = /home --atime-preserve --exclude=.gvfs --exclude=.gnupg backup = /etc --atime-preserve backup = /root --atime-preserve --exclude=.cache --exclude=.cache/keyring-* --exclude-caches-all backup = /usr/local --atime-preserve backup = /var/lib --atime-preserve --exclude=var/lib/rpm --exclude=var/lib/yum --exclude=mysql/mysql.sock --exclude=gssproxy/default.sock --exclude=samba/private/msg.sock backup = /var/backup --atime-preserve backup = /var/log --atime-preserve backup = /var/spool --atime-preserve backup = /var/www --atime-preserve 

Hier ist das vollständige Sicherungsskript:

use POSIX; # Global variables # Host name will be used as name of directory for backups on drobo my($hostname)=`/bin/hostname`; chomp($hostname); my($configfile)="/etc/drobo-backup.conf"; my($tar)="/bin/tar"; # Path to tar utility my($mkdir)="/bin/mkdir"; # Path to mkdir utility my($verbose)=0; my($testmode)=0;  sub Usage { print "Usage: drobo-backup [-v] [-c configfile]\n"; print " -v : verbose mode"; print " -c : specify configuration file (default $configfile)"; print " -n : printd but don't execute commands (for testing config)"; exit 1; }  # Subroutine to back up one directory to drobo sub do_backup { my($drobo,$args,$backup,$cond) = @_;  # The backup arg may include per-backup tar args. Strip off these # and quotes to get at the filename my($backuppath)=$backup; # If quoted, remove quotes for naming. Otherwise it is required not # not to have embedded blanks so that per-backup tar arguments may follow. if( $backuppath =~ /^"([^"]*)"/ ) { # double quotes $backuppath = $1; } elsif( $backuppath =~ /^'([^']*)'/ ) { # single quotes $backuppath = $1; } elsif( $backuppath =~ /^(\S*)/ ) { # otherwise no blanks in path $backuppath = $1; }  if( -d $backuppath || -f $backuppath ) { # check it is a valid dir or file my($drobodir) = "$drobo/$hostname"; # make sure the drobo subdirectory for this host exists my($mkdircmd) = "$mkdir $drobodir"; if( $verbose ) { print "$mkdircmd\n"; } if( ! ($testmode || -d $drobodir) ) { system($mkdircmd); } # if it did not work, bail. if( ! ($testmode || -d $drobodir) ) { print "Failed to create destination dir $drobodir\n"; exit 1; } # construct tarfile name, e.g. usr-local.tgz my($backupfilestem) = $backuppath; # Sanitize the tarfile name while($backupfilestem =~ s,^/,,) { next; } # remove any leading slash(es) while($backupfilestem =~ s,/$,,) { next; } # remove any trailing slash(es) $backupfilestem =~ s,/,-,g; # all internal slashes become hyphens $backupfilestem =~ s/[^-\.\w]/X/g;# all remaining non-word chars exc . become X  my($backupname)="$drobodir/$backupfilestem-new.tgz"; my($backuprename) = "$drobodir/$backupfilestem.tgz"; # $backup =~ s|/|| if $backup =~ m|^['"]?/|; # remove any leading slash # my($tarcmd) = "$tar -C / -czf $backupname $args $backup";  my($tarcmd); if($backup =~ m|^['"]?/|){ $backup =~ s|/||; # remove any leading slash $tarcmd = "ionice -c2 -n7 nice -n19 $tar -czf $backupname -C / $args $backup"; }else{ $tarcmd = "ionice -c2 -n7 nice -n19 $tar -czf $backupname $args $backup"; }  if( $cond ) { $cond =~ s/^\[//; # remove the [ ] around condition $cond =~ s/\]$//; $cond =~ s/BKPATH/$backuppath/g; # convenience substitutions $cond =~ s/TARFILE/$backuprename/g; $cond =~ s/TARDIR/$drobodir/g; } if( $cond && WEXITSTATUS(system("test $cond")) != 0 ) { if( $verbose ) { print "Condition [$cond] tests false\n"; print "No backup of $backuppath\n"; } } else { if( $verbose ) { if( $cond ) { print "Condition [$cond] tests true\n"; } print "$tarcmd\n"; } # tar returns 0 for success, 1 for warnings such as file changed while # being copied. So we take either as meaning success. Rename foo-new.tgz # to the (usually existing) foo.tgz. N.B. system() returns status<<8. if( !$testmode ) { if( WEXITSTATUS(system($tarcmd)) >= 2 ) { print "\nBackup of $backuppath FAILED\n\n"; # to avoid bad backup being renamed to good in second try, call it bad $backuprename = "$drobodir/$backupfilestem-FAILED.tgz"; } if( rename("$backupname","$backuprename") ) { print "Backed up $backuppath to $backuprename\n"; } else { print "Failed to rename $backupname to $backuprename: $!\n"; } } } } else { print "$backuppath is not a directory or file\n"; } }    # default arguments to use on every backup my($tarargs)="--atime-preserve --one-file-system --warning=no-file-ignored --warning=no-file-changed --warning=no-file-removed";   # set default drobopath according network  my($drobopath)="/domain/subdomain"; # cis value if($hostname =~ /\.our\.domain\.edu/) { $drobopath="/domain/subdomain"; # dsm value }   # Process command line arguments while(@ARGV) { if( $ARGV[0] eq "-c" ) { # -c configfile shift (@ARGV); if(@ARGV) { $configfile = $ARGV[0]; } else { Usage(); } } elsif( $ARGV[0] eq "-v" ) { # -v (verbose mode) ++$verbose; } elsif( $ARGV[0] eq "-n" ) { # -n (no-exec mode) $testmode = 1; } else { # unrecognized argument Usage(); }  shift (@ARGV); }   open(CONFIGFILE,$configfile) || die("Cannot open configfile $configfile: $!");  if($verbose) { print "Reading configfile $configfile\n"; }  my(@backup); my(%condition); my($configline) = 0; foreach (<CONFIGFILE>) { $configline++; if( /^\s*#/ || /^\s*$/ ) { # skip blank & comment lines (first nonblank is #) next; } # drobo=/path/to/drobo if( /^\s*drobo\s*=\s*(.*)$/ ) { $drobopath=$1; } # tarargs=global tar arguments elsif( /^\s*tarargs\s*=\s*(.*)$/ ) { $tarargs=$1; } # backup [condition] =/path/for/backup [tar args] elsif( /^\s*backup\s*(\[[^\]]*\])?\s*=\s*(.*)$/ ) { push(@backup,$2); if( $1 ) { $condition{$2} = $1; } } else { print "Unknown config directive at line $configline in $configfile:\n"; print; exit 1; } }  close(CONFIGFILE);   my($path); foreach $path (@backup) { do_backup($drobopath,$tarargs,$path,$condition{$path}); }   # For unknown reason, rename of some files often fails. Try again here.  foreach $tarfile ( glob("$drobopath/$hostname/*-new.tgz") ) { $rename_name = $tarfile; $rename_name =~ s/-new\.tgz$/.tgz/; if( rename($tarfile,$rename_name) ) { print "Second try renamed $tarfile to $rename_name\n"; } }