multi-volume archives

Kurt Hackenberg kh at
Sat Sep 21 17:36:24 UTC 2019

On 2019-09-21 04:38, Steve O'Hara-Smith wrote:

> On Sat, 21 Sep 2019 13:30:03 +0700
> Victor Sudakov <vas at> wrote:

>> Which is now the most convenient way to create multi-volume archives? To
>> fit an archive on a FAT32 flash drive, a volume size should not exceed
>> 4g.
> 	Gnu tar (in ports/packages as gtar) has support for multi-volume
> splitting (-M) which by default prompts for the next volume to be installed
> (so you could write direct to the flash drive) or can use a script to
> generate the next volume filename. I vaguely recall using it a long time
> ago.

You could also use dump, if you want to archive a whole filesystem. Dump 
can write to multiple volumes, it handles everything in a Unix 
filesystem, and it's fast. For multiple volumes, it would write directly 
to the device, without filesystems.

If your memory sticks are larger than FAT can handle, you could put some 
other filesystem on them, like UFS. I believe FAT32 limits a single file 
to 2 GB. It's also slow.

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