Save to CD

Forum: User Feedback
Topic: Save to CD
started by: bmsleight

Posted by bmsleight on June 24 2004,23:44

Hi,

Thanks for Damn Small linux. I am normally a www.Morphix.org user/developer, but wanted a Small linux to fit in my wallet.

Anyway I looked at the Save configuration tool, <filetool.sh>. I also have developed an application from Morphix, cd-persistent. Which allows you to save everything to a multi-session CD.

Last night I modified/hacked this work with Damn Small. Script is below, also available at
< filetool_cdrom.sh >
Alas, my dsl line is being fixed at the moment, so full script is below.
As the line is up and down like a yo-yo.

Anyway if you record DSL on to a multisession cd using cdrecord :-
cdrecord -multi -data damsmall.iso
(adding -dev=0,0,0 or whatever your device is )

You can then use filetool_cdrom.sh to restore/backup as per the original filetool, to the mutlisession cd itself. Rather than use a flopy/usb stick / HD.

I had some problems using the restore last night as X had been ran before I restored the setting, as I could not run the restore script at boot time. It really needs a remaster, but it was only a quick hack.

Thanks for Damn Small.

Regards,
Brendan Sleight

#!/bin/bash
#
# Script to add tar-balls to multi-session Damn Small CD
# and extract them.
# By Brendan M. Sleight - 2004-06-23
# Licenced under the GNU GPL v2 (www.gnu.org)
#
# Based on Brendan's cd-persistent for Morphix.org
# Parts taken from filetool.sh
# by Robert Shingledecker for John Andrews Damn Small Linux
#
#
#
#
# Globals
#
version=0-1-0

cd_home_root=/
cd_rom_location=/cdrom
fs_home=/home/damnsmall
extra_data=extra.raw
temp_root=/tmp
tmp_dir=/tmp/add_to_cd

backup_cd(){
cd_confirm=$(cdrecord --scanbus 2>/dev/null| grep '0,0,0' )
echo "Version " $version
echo "We are assuming that the following is your cd-writter"
echo $cd_confirm
echo "This is important that assumption is correct as "
echo " YOU could fry your hard disk if incorrect"
echo -"Is " $cd_confirm
echo -n "Your cd-writter ? y/n "
read OK
if [ " $OK" = " y" -o " $OK" = " Y" ]
then
echo "Is your multi-sesion CD a CD-Re-writable, "
echo " if so, and you have saved files before, "
echo " shall we wipe the last session ? "
echo " (If this is the first save don't wipe the last session)"
echo -n "(answer W - for wipe) "
read WIPE
if [ " $WIPE" = " w" -o " $WIPE" = " W" ]
then
echo "blanking last session"
echo " Last chance is "
echo " $cd_confirm "
echo -n " Your cd-writter ? y/n "
read OK_RW
if [ " $OK_RW" = " Y" -o " $OK_RW" = " y" ]
then
cdrecord -dev=0,0,0 blank=session
fi
fi
fi

mkdir $tmp_dir 2>/dev/null
#
# Store as a text files the date, so that on next save only
# files modified on or after this date will saved
#

#
# Ugly script - use a tar that is command the same each time - to fix
#
echo "Tarring files"
cat $fs_home/filetool.lst | sudo xargs tar -cvf - | gzip > $tmp_dir/backup.tar.gz
echo "OK, we are tar-ed up"
#
#
# Use cdrecord to get track info, use mkisofs to make the track on local fs
# the use cdrecord to burn
# note we ask about dev=0,0,0 need to put in option to change this.
#
echo "Get multi-sesion infomation from CD"
NEXTTRACK=`cdrecord -msinfo dev=0,0,0`
echo "We know were to put it lets make the data in the correct format for the CD ..."
mkisofs -r -o $temp_root/$extra_data -m '.*' -m root -C $NEXTTRACK -M /dev/cdrom \
-graft-points $cd_home_root/=$tmp_dir/
echo "If the above number of Mb is getting near the max size of your"
echo " CD it is time to start a new CD"
echo " "
echo " Last chance is"
echo " " $cd_confirm
echo -n " Your cd-writter ? y/n "
read OK_TWO
if [ " $OK_TWO" = " y" -o " $OK_TWO" = " Y" ]
then
cdrecord -v -multi -dev=0,0,0 -data $temp_root/$extra_data
echo "The files have been stored on to the CD,"
echo " further files _can not_ be stored on CD "
echo " until reboot has been completed"
echo " enter will close window"
read END
else
echo "Not saved to CD"
echo " enter will close window"
read END
fi
}

#Begin Main
if [ -z $1 ] ; then
echo "Usage: filetool_cdrom.sh {backup|restore}"
echo -n "Press enter to coninue:" ; read ans
exit 1
fi

if [ $1 == "backup" ] ; then
backup_cd
exit 1
fi

if [ $1 == "restore" ] ; then
gzip -dc $cd_rom_location/backup.tar.gz | sudo tar -xvf - -C /
exit 1
fi