[gull] backup partition ntfs [solved]

[sneaky56 at gmx.net]

> > En fait je commets la même erreur avec des partitions ext3. Ce serait
> > mieux que je lance une commande "nettoyage" avant de lancer dd pour
> > profiter d'une meilleur compression ? Y a-t-il un outil qui fasse ça ?
> > 
> 
> J'ai trouvé pour windows et pour GNU\Linux il semble que la commande
> shred permette de rendre illisible les fichiers effacés soit en les
> recouvrant par une suite aléatoire soit par des zéros.

Pourquoi ne pas utiliser "partimage" pour backuper une partition? De plus, il shred ne fonctionnera pas forcement comme attendu, cf la man-page:
       CAUTION:  Note  that  shred relies on a very important assumption: that
       the file system overwrites data in place.  This is the traditional  way
       to  do  things, but many modern file system designs do not satisfy this
       assumption.  The following are examples of file systems on which  shred
       is not effective, or is not guaranteed to be effective in all file sys-
       tem modes:
       * log-structured or journaled file systems, such as those supplied with
       AIX and Solaris (and JFS, ReiserFS, XFS, Ext3, etc.)
       ....

Sinon, pour partimage, apt-cache show dit:
 Partition Image is a partition imaging utility. It has support for the
 following file systems:
  * Ext2/3, the Linux standard
  * ReiserFS, a journalised and powerful file system
  * FAT16/32, DOS and Windows file systems
  * HPFS, IBM OS/2 file system
  * JFS, journalised file system, from IBM, used on AIX
  * XFS, another journalised and efficient file system, from SGI, used on Irix
  * UFS (beta), Unix file system
  * HFS (beta), MacOS File system
  * NTFS (experimental), Windows NT, 2000 and XP
 Only used blocks are copied and stored into an image file.
 The image file can be compressed in the GZIP/BZIP2 formats to save disk space,
 and split into multiple files to be copied onto removable media (ZIP for
 example), burned on a CD-R, etc.
 .
 This makes it possible to save a full Linux/Windows system with a single
 operation. In case of a problem (virus, crash, error, etc.), you just have
 to restore, and after several minutes, your entire system is restored
 (boot, files, etc.), and fully working.


       tom
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