I finally got Sybase ASE 15 installed. I used CentOS 4.3 under VMWare Server beta 3 (also found how to disable debugging): As root: yum -y update (enabled centosplus and contrib) sysctl -w kernel.shmmax=67108864 (also add line to /etc/sysctl.conf, this doubles the shared memory to 64K) useradd -d /opt/sybase sybase (creates a sybase user and sets its $HOME) mv /usr/lib/tls /usr/lib/tls.bak (stops Sybase linking against the wrong Kerberos libraries) As the newly-created user sybase: