On 2016-07-20 14:20, Neimar Volpini wrote:
> Hello,
>
> Since I've upgraded to Ubuntu 16.04 I'm having problems with BackupPC
> and Samba, most of them related to samba version 4.3 (used to work fine
> in samba 4.1+).
>
> Right now I'm struggling with smb backups for windows hosts that
> contains filenames with ISO-Latin-1 accented characters. Names like
> "exceção", "acentuação" and so... when such file name or directory name
> is found a "PaxHeader" directory is created.
>
> My windows host directory tree:
>
> ----------
> /acentuação
> ./acentuação/outro.txt
> ./exceção.txt
> ./pasta1
> ./pasta1/preços.txt
> ./pasta1/teste.txt
> ----------
>
> When BackupPC does the backup it brings those "PaxHeader" extra
> directories:
>
> XferLOG
> ----------
> Running: /usr/bin/smbclient //apolo/teste-backup -W XXXX -U xxxx -E -d
> 1
> -c tarmode\ full -TcrX - \\\\exclude
> full backup started for share teste-backup
> Xfer PIDs are now 31617,31616
> Domain=[XXXX] OS=[Windows Server 2008 R2 Standard 7601 Service Pack 1]
> Server=[Windows Server 2008 R2 Standard 6.1]
> tar:316 tarmode is now full, system, hidden, noreset, quiet
> tar:712 Total bytes received: 7
> create 755 0/0 108 PaxHeader/acentuação
> create 755 0/0 0 acentuação
> pool 644 0/0 117 acentuação/PaxHeader/outro.txt
> create 644 0/0 0 acentuação/outro.txt
> create 644 0/0 108 PaxHeader/exceção.txt
> pool 644 0/0 7 exceção.txt
> create 755 0/0 0 pasta1
> create 644 0/0 113 pasta1/PaxHeader/preços.txt
> create 644 0/0 0 pasta1/preços.txt
> create 644 0/0 0 pasta1/teste.txt
> tarExtract: Done: 0 errors, 5 filesExist, 124 sizeExist, 117
> sizeExistComp, 8 filesTotal, 453 sizeTotal
> ----------
>
> When I execute smbclient via command line it doesn't show those
> directories:
>
> ----------
> /usr/bin/smbclient //apolo/teste-backup -A smbpwd -W XXXX -U xxxx -E -d
> 1 -c tarmode verbose full -TcrX - \\\\exclude | tar -tvf -
> Domain=[XXXX] OS=[Windows Server 2008 R2 Standard 7601 Service Pack 1]
> Server=[Windows Server 2008 R2 Standard 6.1]
> tar:316 tarmode is now full, system, hidden, noreset, quiet
> tar:712 Total bytes received: 7
> drwxr-xr-x 0/0 0 2016-07-20 15:50 ./acentuação/
> -rw-r--r-- 0/0 0 2016-07-19 22:00 ./acentuação/outro.txt
> -rw-r--r-- 0/0 7 2016-07-20 15:26 ./exceção.txt
> drwxr-xr-x 0/0 0 2016-07-20 15:50 ./pasta1/
> -rw-r--r-- 0/0 0 2016-07-19 22:00 ./pasta1/preços.txt
> -rw-r--r-- 0/0 0 2016-07-19 22:00 ./pasta1/teste.txt
> ----------
>
> Some system info:
>
> ----------
> Ubuntu 16.04.1 LTS amd64
>
> backuppc 3.3.1-2ubuntu3
> samba 2:4.3.9+dfsg-0ubuntu0.16.04.2
>
> locale
> LANG=pt_BR.UTF-8
> LANGUAGE=pt_BR:pt:en
> LC_CTYPE="pt_BR.UTF-8"
> LC_NUMERIC=pt_BR
> LC_TIME=pt_BR
> LC_COLLATE="pt_BR.UTF-8"
> LC_MONETARY=pt_BR
> LC_MESSAGES="pt_BR.UTF-8"
> LC_PAPER=pt_BR
> LC_NAME=pt_BR
> LC_ADDRESS=pt_BR
> LC_TELEPHONE=pt_BR
> LC_MEASUREMENT=pt_BR
> LC_IDENTIFICATION=pt_BR
> LC_ALL=
> ----------
>
> I'm not sure it is a samba problem, system encoding problem, tar
> problem
> ... just looking for some directions to try fixing it.
>
>
> Thanks.
>
> Neimar
PaxHeader is the file that appears when tar doesn't know what to do with
extended attributes, as per the POSIX specification. In other words,
whatever is creating the tar file is storing extended attributes, but
whatever is reading the tar file and creating the "PaxHeader/..." files
does not understand those extended attributes.
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