== How Amanda uses what restore program to use, a correction

In AmandaRestorePrograms I wrote, about what to do if Amanda
didn't recognize properly recognize [[which sort of dump program
../unix/DumpHistory]] it had used to back up a filesystem:

> * put a '_restore_' program (either a cover script or just a symlink
>   to _ufsrestore_) somewhere in our _$PATH_ when we do Amanda restores.

Allow me to correct myself: this doesn't actually work as I wrote
it. (When I wrote the original article, we hadn't had to actually test
this; we have since then.)

The problem is that Amanda does not actually search _$PATH_ when it is
executing the restore program (including when it is plain '_restore_');
it simply executes the program directly by path (which is sensible,
since it normally knows the exact path). When it tries to execute the
default _restore_ program it uses no path, and thus is actually trying
to run '_./restore_'.

(In Unix terms, Amanda uses _execve()_ instead of _execvp()_ or the
like.)

So: ~~you have to put your '_restore_' program in the current
directory~~ (possibly in the directory that Amanda will restore to, if
you've changed that inside _amrecover_). This does work, although it's
slightly inconvenient.