Hi,
I'm configuring my server amanda (version 2.4.3) for tapeless dump.
I've dumped some directories, but I can't recovery or restore them 
these are the errors:

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amrecover -t rescue -s rescue
AMRECOVER Version 2.4.3. Contacting server on rescue ...
220 rescue AMANDA index server (2.4.3) ready.
200 Access OK
Setting restore date to today (2003-04-18)
200 Working date set to 2003-04-18.
200 Config set to DailySet1.
501 No index records for host: rescue. Invalid?
Trying host rescue ...
501 No index records for host: rescue. Invalid?
Trying host rescue.di.unipi.it ...
501 No index records for host: rescue.di.unipi.it. Invalid?
amrecover> setdisk /dev/hdd
501 Must set config,host before setting disk.
amrecover> setdate 2003-04-17
200 Working date set to 2003-04-17.
amrecover> sethost osiris
200 Dump host set to osiris.
amrecover> setdisk /dev/hdd
501 No index records for disk: /dev/hdd. Invalid?

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 amrestore /dev/hdd
amrestore: WARNING: not at start of tape, file numbers will be offset
amrestore: could not fsf /dev/hdd: Input/output error

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I've already applied patch tapeio.diff and stat.diff

What is wrong?