Howto: Call the debian-cd hooks from simple-cdd

[Harry Jede <walk2sun@arcor.de>]

Hi

in your script:
/usr/share/simple-cdd/tools/build/debian-cd
i've found this notice:

# TODO: use the hook mechanism of debian-cd to first indicate the
# size that must be reserved and then copy the files at the appropriate time in
# the process (see RESERVED_BLOCKS_HOOK and DISC_START_HOOK).  The current
# approach can overflow the media.
cp -a $extras_base_dir/. $TDIR/$CODENAME/CD1

Currently i am playing with simple-cdd to port a german school-server
to debian. May be we are using simple-cdd to burn a cdrom.

To use the hooks from debian-cd, i've done the following things:
1. Create a script which calls simple-cdd (ark45cdd)
2. export the hook you want to use
3. create the script which is called from the hook

In our case, i am only interested in the DISC_START_HOOK, because i
want to copy additional files to the CD.

Here is the approach:
cat ark45-cdd

#!/bin/sh
export simple_cdd_dir="/home/hjede/my-simple-cdd"
export DISC_START_HOOK="$simple_cdd_dir/disc-start-hook.sh"

/usr/share/simple-cdd/build-simple-cdd \
  --conf $simple_cdd_dir/profiles/ARK45.conf \
  --dist etch \
  "$@"
#end of ark45-cdd


cat disc-start-hook.sh
#!/bin/sh

# $TDIR (the temporary dir containing the build tree)
# $MIRROR (the location of the mirror)
# $DISKNUM (the image number in the set)
# $CDDIR (the root of the temp disc tree)
# $ARCHES (the set of architectures chosen)

# The disc_start hook. This will be called near the beginning of the
# start_new_disc script, just after the directory tree has been created
# but before any files have been added
#export DISC_START_HOOK=/bin/true

echo "Script $0 wurde gestartet.

mit folgenden Parametern:
TDIR=$1
MIRROR=$2
DISKNUM=$3
CDDIR=$4
ARCHES=$5

"  > $simple_cdd_dir/disc-start-hook.log

if [ "$3"=1 ] ; then
    cp -a $simple_cdd_dir/preseed.cfg $1/$CODENAME/CD1/
fi
#end of disc-start-hook.sh

That's it. 

Here the log after building the CD.

cat disc-start-hook.log
Script /home/hjede/my-simple-cdd/disc-start-hook.sh wurde gestartet.

mit folgenden Parametern:
TDIR=/home/hjede/my-simple-cdd/tmp//cd-build
MIRROR=/home/hjede/my-simple-cdd/tmp//mirror
DISKNUM=1
CDDIR=/home/hjede/my-simple-cdd/tmp//cd-build/etch/CD1
ARCHES=i386
#end of logfile



-- 

Gruss
	Harry Jede