hi guys,
trying to install openssh-sftp-server. i have been trying to follow: http://wiki.openwrt.org/inbox/replacing … nsshserver

however, when i do:

root@OpenWrt:/# opkg update
Downloading http://pkg.8devices.com/v2.3/carambola/ … ckages.gz.
Inflating http://pkg.8devices.com/v2.3/carambola/ … ckages.gz.
Updated list of available packages in /var/opkg-lists/snapshots.

and then

root@OpenWrt:/# opkg install openssh-server
Unknown package 'openssh-server'.
Collected errors:
* opkg_install_cmd: Cannot install package openssh-server.
root@OpenWrt:/# opkg install openssh-sftp-server
Unknown package 'openssh-sftp-server'.
Collected errors:
* opkg_install_cmd: Cannot install package openssh-sftp-server.

anything i am doing wrong ?

Hm, where did you get this version of OpenWRT? It's downloading packages from some third party location:

http://pkg.8devices.com/v2.3/carambola/packages/

Perhaps this is a customized version running on special hardware? In any case, the sftp package is not available at that location. You should contact whoever created your firmware for help.