Clonezilla will do that for you.
http://clonezilla.org/

On 12/31/2012 03:12 PM, joe@actionline.com wrote:
> What is the easiest way to create a clone of a kubuntu
> installation that now exists on one computer (/ and /home)
> and install the exact same thing as an iso on another computer?
> I now have created a 90-gig free-open space partition
> on a 250-gig HD along with win7 in the first 100-gig.
>
> Searching the 'net, I found several possible scenarios,
> including 'Remastersys,' 'Relinux,' and the following:
>
> http://www.hardwareforums.com/threads/remaster-your-own-kubuntu-livecd.17927/
>
> Some of which suggested code includes this:
>
> rn kubuntu-7.04-desktop-i386.iso
>
> mkdir /mnt/loop
>
> Loopback mount the .iso - but first create the directory "/mnt/loop" Code:
> mkdir /mnt/loop
> Or create the directory graphically. This command makes the LiveCD
> accessible in /mnt/loop Code:
>    mount -o loop /path/to/feisty.iso /mnt/loop
> Create a directory / folder Kubuntu-rebuild in "~/"[ot]mine is
> /home/dave[/ot]next Code:
>    rsync -ax loop /path/to/LiveCD.iso /mnt/loop/. kubuntu-rebuild
> Assume you downloaded it to desktop be ~/feisty.iso
> Use SquashFS & squashfs-tools to loopback mount the filesystem Code:
>    mount kubuntu-rebuild/casper/filesystem.squashfs /mnt/loop -t squashfs
> -o loop
> /mnt/loop contains the compressed ubuntu from the LiveCD
> copy /mnt/loop to a new directory in your home diiretory (/home/<username>)
> So you now have the compressed CD in home directory (~/kubuntu-source). Code:
>    rsync -av /mnt/loop/. ~/kubuntu-source
>    unmount /mnt/loop
> copy /etc/resolv.conf to ~/kubuntu-source/etc and[code]chroot
> ~/kubuntu-source
> Now you are basically running the LiveCD without booting it
> Remove software you do not want. Be careful to not remove essentials.
> Add software you want with apt-get. Anything you add or remove will be
> your LiveCD. Code:
>    apt-get install gparted
>
> After typing "exit" you can leave remaster alone and continue with it later.
> If you reboot before issuing the exit command, at the next boot continue
> as normal.
> When finished editing, type "exit" to leave the kubuntu LiveCD.
> Make a list of files to be on the remastered LiveCD. Code:
>
>    sudo chroot kubuntu-source dpkg-query -W --showformat='${Package}
> ${Version}\n | grep -v deinstall >
> ~/kubuntu-rebuild/casper/filesystem.manifest
>
> Rebuild SquashFS filesystem image. Patience. Takes a while to complete. Code:
>
>    mksquashfs kubuntu-source/ kubuntu-rebuild/ casper/filesystem.squashfs
> -noappend
>
> Update the MD5 checksums to verify the .iso is completed and works. Code:
>
>    cd /kubuntu-rebuild && find . -type f -print0 | xargs -0 md5sum >
> md5sum.txt
>
> Build new .iso image. Code:
>
>    mkisofs -r -V "My Custom Kubuntu" -cache -iodes -J -l -b isolinux.bin -c
> isolinux.bin -c isolinux/ boot.cat -no-emul-boot -boot-load-size 4 -boot
> info-table -0 newkubuntu.iso kubuntu-rebuild
>
> New Kubuntu Live is called newkubuntu.iso
>
> == comment: easier w UNK Reconstructor and others.
>
>
>
>
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Patrick Moore