Mounting issues for SuSE 8.0 filesystem

Hi, We recently upgraded our SuSE Linux version from 6.4 to 8.0 on a Intel Pentium III m/c. We generally mount this Linux filesystem (ext2) on SGI and other workstations. However, after upgrading to SuSE 8.0, we are unable to use the mounted Linux filesystem properly. On SGI, when we type the command "pwd", it doesnt show the correct directory. It comes up saying "Cannot determine current directory". Are there any modifications to the rpc.mountd or other similar core Linux utilities? Thanks, Raghav