fredvej
12-27-2013, 02:55 PM
Currently, there is no way to load persistent settings if Knoppix is booted from a read-only medium. I suggest a change to the init script in the minirt, so that it is possible e.g. to boot from a CD and enter a boot parameter to load the KNOPPIX-DATA overlay file from a file somewhere else.
knoppix home=/dev/sdb1/path/to/file/loadme
should load the file loadme.img or loadme.aes from the stated device and path.
diff between original init and the new version:
848a849,871
> preparehome(){
> # mount device and set the correct mounted path in $home
> DEVICE=`echo $home | awk -F/ '{print "/"$2"/"$3}'`
> HOMEFILE="${home#$DEVICE/}"
> #check if the device is already mounted
> MOUNTED=`mount | grep ^$DEVICE | awk '{print $3}'`
> if [ -n "$MOUNTED" ]
> then
> if [ -r "$MOUNTED"/${HOMEFILE}.* ]
> then
> home="$MOUNTED"/${HOMEFILE}
> fi
> else
> # make mount point
> [ -d /mnt-home ] || mkdir -m 755 /mnt-home
> trymount "$DEVICE" /mnt-home >/dev/null 2>&1
> if [ -r /mnt-home/${HOMEFILE}.* ]
> then
> home=/mnt-home/${HOMEFILE}
> fi
> fi # if mounted
> } # preparehome
>
850a874,875
> # if home is in parameters and starts with /dev/ mount the device and find the file
> [ -n "$home" ] && [ `echo $home | awk -F/ '{print $2}'` = "dev" ] && preparehome
What's the point ? To be able to use an unmodified verifiable ISO and still load settings. Some computers cannot boot from USB, and maybe one isn't allowed to copy Knoppix to the hard disk.
knoppix home=/dev/sdb1/path/to/file/loadme
should load the file loadme.img or loadme.aes from the stated device and path.
diff between original init and the new version:
848a849,871
> preparehome(){
> # mount device and set the correct mounted path in $home
> DEVICE=`echo $home | awk -F/ '{print "/"$2"/"$3}'`
> HOMEFILE="${home#$DEVICE/}"
> #check if the device is already mounted
> MOUNTED=`mount | grep ^$DEVICE | awk '{print $3}'`
> if [ -n "$MOUNTED" ]
> then
> if [ -r "$MOUNTED"/${HOMEFILE}.* ]
> then
> home="$MOUNTED"/${HOMEFILE}
> fi
> else
> # make mount point
> [ -d /mnt-home ] || mkdir -m 755 /mnt-home
> trymount "$DEVICE" /mnt-home >/dev/null 2>&1
> if [ -r /mnt-home/${HOMEFILE}.* ]
> then
> home=/mnt-home/${HOMEFILE}
> fi
> fi # if mounted
> } # preparehome
>
850a874,875
> # if home is in parameters and starts with /dev/ mount the device and find the file
> [ -n "$home" ] && [ `echo $home | awk -F/ '{print $2}'` = "dev" ] && preparehome
What's the point ? To be able to use an unmodified verifiable ISO and still load settings. Some computers cannot boot from USB, and maybe one isn't allowed to copy Knoppix to the hard disk.