Upgrading the Operating System

AFS 3.6 supports the 64-bit version of HP-UX 11.0 and Solaris 7. To upgrade from the 32-bit version, you possibly need to reinstall the operating system completely before installing AFS 3.6. When performing any operating system upgrade, you must take several actions to preserve AFS functionality, including the following:

• Unmount the AFS server partitions (those mounted on /vicep directories) on all file server machines, to prevent the standard vendor version of the fsck program from running on them when you reboot the machine during installation of the new operating system. On several operating systems, the standard fsck program does not recognize AFS volume data and discards it. Also, disable automatic mounting of the partitions during reboot until you have substituted the AFS vfsck program for the vendor fsck program.

• Create copies of the AFS-modified versions of binaries or files so that they are not overwritten by the standard versions during the operating system upgrade, particularly if you are not performing an immediate AFS upgrade. Examples include the remote commands (ftpd, inetd, rcp, rsh, and so on) and the vfsck binary. After you have successfully installed the new version of the operating system, move the AFS-modified files and commands back to the directories from which they are accessed during normal use.