When I installed this update into my Zeroshell box This was part of the output
Activating the package 48e00:Add-On …
Reading configuration …
–> Replacing files …
–> Patching files …
patching file /etc/group
Hunk #1 FAILED at 11.
1 out of 1 hunk FAILED — saving rejects to file /etc/group.rej
patching file /etc/fstab
patching file /root/kerbynet.cgi/template.cfg/httpd.conf
Hunk #1 FAILED at 304.
1 out of 1 hunk FAILED — saving rejects to file /root/kerbynet.cgi/template.cfg/httpd.conf.rej
patching file /etc/httpd/conf/CapPortAS.conf
Hunk #1 FAILED at 266.
1 out of 1 hunk FAILED — saving rejects to file /etc/httpd/conf/CapPortAS.conf.rej
patching file /etc/httpd/conf/CapPortGW.conf
Hunk #1 FAILED at 263.
1 out of 1 hunk FAILED — saving rejects to file /etc/httpd/conf/CapPortGW.conf.rej
–> Running scripts …
Syncing filesystem… Done
I do not know if this is intended or just an anomaly on my system.