dump aborts; backsup device size issue?

[Lowell Gilbert]

Robert Huff <roberthuff at rcn.com> writes:

> 	I have an external hard drive connected by eSATA; it looks like this:
>
> 			    used   free		
> /dev/gpt/backup    451G     10G    405G     3%    /backup
>
> 	However, when running dump this morning I got:
>
> /backup clean
> Disk mounted
> Using /backup/Mon
> Dumping to /backup/Mon/root
>   DUMP: Date of this level 0 dump: Mon Jun  2 01:59:03 2014
>   DUMP: Date of last level 0 dump: the epoch
>   DUMP: Dumping snapshot of /dev/gpt/root (/) to 2014.Jun.2.root.dump
>   DUMP: mapping (Pass I) [regular files]
>   DUMP: Cache 32 MB, blocksize = 65536
>   DUMP: mapping (Pass II) [directories]
>   DUMP: estimated 1067897 tape blocks.
>   DUMP: dumping (Pass III) [directories]
>   DUMP: dumping (Pass IV) [regular files]
>   DUMP: End of tape detected
>   DUMP: Closing 2014.Jun.2.root.dump
>   DUMP: Change Volumes: Mount volume #2
>   DUMP: fopen on /dev/tty fails: Device not configured
>   DUMP: The ENTIRE dump is aborted.
>
> 	(System =
> FreeBSD 11.0-CURRENT #1 r264673: Sat Apr 19 09:43:10 EDT 2014 amd64
> 	)
> 	So ... trying to dump < 2 gybtes onto 405 free and "end of
> tape"?  I'm confused.
> 	(I could reformat the disk, but I'd like to avoid that if possible.)
>


And you've said you *did* use the -a option; could you show the rest of
the command line?

Can you make a snapshot manually and then dump that?