Are you getting this error ??
[email protected] [/tmp]# /scripts/updatenow
Updating /scripts…rename .sysup.kcMbDT -> sysup : Operation not permitted
rsync error: some files could not be transferred (code 23) at main.c(1045)
Very simple, check the attributes of the file listed in error.
In this case, sysup had immutable attributes.