SAP LiveCache - Global Listener error

hi,

While updating LiveCache from 7.7.07 to 7.9.08, getting error.

command used for inplace update.

./SDBUPD -d LXX -u control,password

ERR: cannot start global listener

ERR: Cannot start communication server

ERR: Cannot execute program /sapdb/programs/bin/ sdbglobal listener: /sapdb/programs/bin/ sdbglobal listener: No such file or directory

When checking other docs, from version 7.8, Global listener is introduced.

Could not see sdbgloballistener in the liveCache directory as of now. Wondering, if we need to install Global Listener prior to start the update?

Thanks in advance.

Regards,

Raj