backuppc-notes
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backuppc-notes [2015/04/17 17:42] – snarg | backuppc-notes [2018/11/26 08:59] – snarg | ||
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- | === notes on transfering backuppc pc directories *with* hardlinks === | + | ==== Notes on transfering backuppc pc directories *with* hardlinks |
- | == Untarring with hardlinks == | + | === Untarring with hardlinks |
The command for extracting a tar made with BackupPC_tarPCCopy: | The command for extracting a tar made with BackupPC_tarPCCopy: | ||
- | < | + | < |
+ | tar -xPv</ | ||
(the P is important) | (the P is important) | ||
- | == Piping the restore | + | === Piping the transfe |
on source server: | on source server: | ||
< | < | ||
Line 14: | Line 15: | ||
< | < | ||
nc -l -p 9800 | tar -xPpvf -</ | nc -l -p 9800 | tar -xPpvf -</ | ||
+ | |||
+ | If getting a heap of "Cant find xx/x/x in pool, will copy file" errors - It could be because at some point backuppc was configured to not use the compressed pool. Try this patch which checks both pools for the file when generating a hardlink for the pipe to tar. | ||
+ | < | ||
+ | --- / | ||
+ | +++ / | ||
+ | @@ -496,6 +496,32 @@ | ||
+ | } | ||
+ | $i++; | ||
+ | } | ||
+ | + | ||
+ | + if ( ! defined($linkName) ) { | ||
+ | + # now second take for the non compressed pool (next line sets compressed flag to 0) | ||
+ | + # - no idea why compressed files are making it into there - rob 201810 | ||
+ | + | ||
+ | + my $path = $bpc-> | ||
+ | + my $i = -1; | ||
+ | + | ||
+ | + # | ||
+ | + while ( 1 ) { | ||
+ | + my $testPath = $path; | ||
+ | + | ||
+ | + last if ( !-f $testPath ); | ||
+ | + my $inode = (stat(_))[1]; | ||
+ | + if ( $inode == $hdr-> | ||
+ | + # | ||
+ | + # Found it! Just emit a tar hardlink | ||
+ | + # | ||
+ | + | ||
+ | + | ||
+ | + last; | ||
+ | + } | ||
+ | + $i++; | ||
+ | + } | ||
+ | + } | ||
+ | + | ||
+ | } | ||
+ | } | ||
+ | if ( defined($linkName) ) { | ||
+ | </ | ||
+ | |||
+ | ==== Easy backuppc restore via netcat ==== | ||
+ | In this example the backup hostname is propertywestlocal, | ||
+ | (as backuppc on server) | ||
+ | < | ||
+ | |||
+ | (as root on target pc [backuppc server if you like]) | ||
+ | < | ||
backuppc-notes.txt · Last modified: 2018/11/26 09:00 by snarg