For the past week or so, am facing similar problems in installingThere seems to be some problem with ftp.iitm.ac.in
aptitude update
Err ftp://ftp.iitm.ac.in unstable Release.gpg
PASS failed, server said: OOPS: cannot change
directory:/home/ftpdir/pub/
Err ftp://ftp.iitm.ac.in testing Release.gpg
PASS failed, server said: OOPS: cannot change
directory:/home/ftpdir/pub/