How to Remaster a Puppy Linux ISO File Manually

Assuming that one has made an installation of the ISO file that one wants to modify, proceed with the following procedure.

Copy the existing file system to a working directory, e.g. for a frugal installation:

mkdir -p /mnt/home/workingdirectory

cp -a  /initrd/pup_ro2/* /mnt/home/workingdirectory

Modify the contents of the working directory to one's requirements, e.g. by inspecting the contents of the personal storage (save) file (either /initrd/pup_rw for pupmode 12 or /initrd/pup_ro1 for pupmode 13) and then copying from there the directories /etc, /root, /usr and /var
[WARNING: if the ISO file is for wide distribution one must be selective as to what is copied from those directories]

Create the SFS file of the modified file system, e.g.:

mkdir -p /mnt/home/remasterdirectory

cd /mnt/home

mksquashfs workingdirectory remasterdirectory/puppyremaster.sfs -noappend

Copy any necessary files to /mnt/home/remasterdirectory from the original ISO file (or optical disc) so as to create a complete and new ISO file:

[TIP: a recent version of the boot-loader system file isolinux.bin is highly recommended]

cd /mnt/home

mkisofs -b isolinux.bin -c boot.cat -D -l -R -v -V "Puppy Linux remaster" -no-emul-boot -boot-load-size 4 -boot-info-table -o "newpuppy.iso" remasterdirectory

(Optionally) write (burn) the ISO file to optical disc

Additional Reading

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