Sun Microsystems Netra T4 AC100 Service And System Reference Manual page 266

4. Remove the existing patch.
#
patchrm 110208-09
Checking installed patches...
Executing prebackout script...
prebackout: Starting ...
removing driver
prebackout: Finished
Backing out patch 110208-09...
Patch 110208-09 has been backed out.
5. Reboot the system.
6. Copy the new patch into the /var/tmp directory.
From the /var/tmp directory, confirm that it contains the file
1102018-< version# >.tar and then run a checksum to confirm that it has been
copied correctly.
# cksum 110208-< version #>.tar
123456789 1076224 110208-< version# >.tar
#
Note – Your checksum will be different.
If the checksum is not correct, the file is corrupt.
7. Extract the files from the patch.
# tar xf /var/tmp/110208-< version# >.tar
8. Install the new patch.
# patchadd 110208-< version# >
9. Reboot the system.
F-2 Netra T4 AC100/DC100 Service and System Reference Manual • August 2001