In the last episode (Apr 19), Bill Moran said: > Chuck Swiger <[EMAIL PROTECTED]> wrote: > > Bill Moran wrote: > > > The system can not replace programs that are in use, > > This is generally not the case. Unix lets you continue to access a > > file after it has been deleted, so long as the process hangs on to > > a file descriptor. This lets you replace programs in use, without > > running into the same problems that platforms like Windows have. > > What you say?: > > bash-2.05b$ su > Password: > bolivia# cp /usr/sbin/cron /home/wmoran/. > bolivia# cp /home/wmoran/cron /usr/sbin/. > cp: /usr/sbin/./cron: Text file busy > bolivia# > > Notice that /usr/sbin/cron is in use (because my system is running > normally) I can copy _from_ that file, but I can not overwrite it.
What you can do, however, is: create the new file under a temporary name, delete the original, and rename the temp file to the orignal's name, which is what /usr/bin/install does. I've done many installworlds on running systems without problems. -- Dan Nelson [EMAIL PROTECTED] _______________________________________________ freebsd-stable@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-stable To unsubscribe, send any mail to "[EMAIL PROTECTED]"