If /home is mounted over NFS via an automount map, root is unlikely to be able to create directories in /home. While root can be configured to be allowed to write in individual home directories, it can't automatically create an automount map, which is very common in larger NFS setups. Thus, it's very unfortunate that the debian/preinst script fails - if it has to create a /home/ANONYMOUS directory, could it possibly be set to just warn if it detects autofs? Something along the lines of:
if ! [ -d /home/ANONYMOUS ] then if [ `mount | grep /home | grep autofs | wc -l` -eq 0 ] then mkdir /home/ANONYMOUS else echo "Warning: autofs for /home enabled, please see /usr/share/doc/README.Debian" fi fi if [ -d /home/ANONYMOUS ] then chmod 0777 /home/ANONYMOUS chown nobody:nogroup /home/ANONYMOUS fi -ukh
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