Messages in this thread | | | From | "Khimenko Victor" <> | Date | Sat, 4 Sep 1999 11:36:36 +0400 (MSD) | Subject | Re: Amanda VFAT Incremental Backups Broken in linux-2.2.1[12] |
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In <9e86d1b443edfd13@home-box.demon.co.uk> Robert de Bath (rd103983@home-box.demon.co.uk) wrote: > DONT BACKUP VFAT INCREMENTALLY
> There is only one date on a file on a VFAT partition and as every command > down to the DOS copy command preserves that date you cannot see what's > been changed.
This is WRONG. VFAT (but NOT plain old MS-DOS FAT !!!) has three times as it should be: Modification time (this is old good MS-DOS "modification time"; preserved by copy), Creation time (not preserved by copy) and "Last access time" (date actual -- time is not stored; not preserved by copy). At least it is on disk -- I'm not sure if Linux's VFAT driver supports them...
> Hopefully the ctime is being set to now (or now-1); this is the > _right_ thing to do.
Why so ? Why not use existing three times ? Even if "Last access time" is not time but date...
> There is a good feature of VFAT (I _DONT_ believe it !!! a GOOD feature in > VFAT!!!!!!!) in the archive bit. This would provide reliable incrememtal > backups ... but it can't be mapped onto Unix semantics.
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