On Wed, 31 Jan 2007, Lou Ruppert wrote:
Per Foreby a écrit :
I'm trying to setup printers during the installation, using "$ROOTCMD
lpadmin ...".
What I do now is to create /INSTALL.NEW at the end of the
installation, and make that file trigger "fai softupdate" at the first
boot, but it would of course be nice to avoid that extra stage.
I found the same problem. What I've been doing is creating an init
script to run on the first reboot of the machine, which then finishes
the job when CUPS is running. The script then deletes itself when it's
finished. Here's an example install script from FAI:
#!/bin/sh
#
# We copy an init script to do the dirty work on reboot, so that we have
CUPS
# running properly, and so on. It's a dirty hack, but it works.
fcopy /etc/rc2.d/S20installprinter
And the script in question:
#!/bin/sh
/usr/sbin/lpadmin -E -plab -D"HP Laser Printer" -vparallel:/dev/lp0
-P/usr/share/ppd/hpijs/HP/HP-LaserJet_4V-hpijs.ppd
/usr/bin/cupsenable lab
/usr/sbin/lpadmin -d lab
rm /etc/rc2.d/S20installprinter
Same strategy works for other things which require a running system to
pull off.
Thanks, as you say, on less reboot. I try to use the same config for
install and softupdate, but you solutions could easily be tweaked into
running the script immediately on a softupdate:
fcopy /etc/rc2.d/S20installprinter
if [ "$FAI_ACTION" == "softupdate" ]; then
/etc/rc2.d/S20installprinter
fi
To those who suggested fcopy/ftar: I try to avoid that approach for
configuration files. The reason is maintainability. With fcopy most of
the files need to be replaced when upgrading to a new debian version.
However, using cfengine, debconf and configuration utilies like lpadmin,
most of the local changes survive the upgrade. And I do of course have
the same possibility to take advantage of the class hieracy in shell
scripts (ifclass CLASS) and cfengine scripts (CLASS::).
Cups is an excellent example: The upgrade from sarge to etch (cups
1.1.23 to 1.2.7) is a major cups upgrade, and the config files are
probably not portable, but the lpadmin approach is.
/Per
