man amflush
      -b
          Run amflush in batch mode. All datestamps are selected
          unless specified. The flush is started without confirmation.

Which documentation did you read?

Zembower, Kevin wrote:

Wow, I would have never guessed that I wanted -f (run in foreground) AND
-b (run in background) together. I assumed that they were mutually
exclusive. Will try out later. I suggest that the documentation be
changed to reflect this capacity. Thanks so much for suggesting this.

-Kevin

-----Original Message-----

From: Jean-Louis Martineau [mailto:martineau AT zmanda DOT com] Sent: Thursday, April 17, 2008 3:13 PM

To: Zembower, Kevin
Cc: amanda-users AT amanda DOT org
Subject: Re: Changed behavior of amflush, going to background?

man amflush:
       -f

Run amflush in foreground. Amflush normally detaches itself from the tty and runs as a background process. With the -f option, amflush stays in the foreground. This is useful if amflush is run as part of another script that, for example, advances the tape after the flush is completed.

You want: ( amflush -b -f DBackup && mt offline ) &

Zembower, Kevin wrote:

I could have sworn that I used to be able to do an amflush and then
eject the tape in the background with a command such as this, as the
amanda user:

echo 'amflush DBackup && mt offline' | at now

However, this now sends me an email that seems to show it asking for

the

right amanda backups to flush to tape. So, I also tried,

echo 'amflush -b DBackup && mt offline' | at now

But, this one seems to execute the 'mt offline' and eject the tape

just

as soon as the amflush drops to the background. Using 'ps aux' shows
tapers started immediately. I get the amflush email that there's no

tape

present. I've pasted in my 'amadmin version' output at the end of this
message.

Any suggestions on a single command line that would do the amflush and
then eject the tape in the background? For extra bonus points, how

could

I combine this with a 'sudo -u backup ...' so that I can execute the
whole thing without becoming the amanda user (assume that I have sudo
set up correctly to execute any needed commands)?

Thanks so much for your advice and suggestions.