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Old 06-02-2005, 05:25 PM   #1
Registered: Aug 2002
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Mount ISO Read/Write

Hello, I am trying to edit a Live CD, Overclockix, to fold for my username. I downlaoded the ISO and mounted it using

mount  -o rw,loop -t iso9660 /home/luser/Overclockix_3.8.iso /mnt/iso/
But the filesystem is still read only! i just want to edit a textfile inside the ISO, and then burn it. It seems like it shouldnt be that hard. After that failed i extracted the ISO to a directory edited the file and was unable to figure out how to rebuild the ISO. If thats what i have to do how do i put the ISO back together? Thanks alot,

Old 06-02-2005, 05:42 PM   #2
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you'll have to copy the files from /mnt/iso/ to another /home/directory/ make your changes then create a new .iso image file.

Old 06-02-2005, 05:47 PM   #3
Registered: Aug 2003
Location: Brisbane, Australia
Distribution: Red Hat Enterprise Linux 4
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*mkisofs* is your friend.

I personally havent used it, but i know a few people who swear by it.

You can download it here -->

There's also a nice write up to make your live cd/edit iso etc here -->

Hope this helps


Old 06-02-2005, 10:33 PM   #4
Registered: Aug 2002
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I have no idea how to remake this image. Ive been trying to do it for a while and i cant get it to work. I followed that guide, and tried to remake the ISO by

mkisofs -o /new.iso -b /home/luser/cdrom/boot/isolinux/isolinux.bin -c /home/luser/cdrom/boot/isolinux/ -no-emul-boot -boot-load-size 4 -boot-info-table -J -R /home/luser/
but i always get the same error and i dont know whats wrong

INFO: UTF-8 character encoding detected by locale settings.
Assuming UTF-8 encoded filenames on source filesystem,
use -input-charset to override.
Unknown file type (unallocated) /home/luser/.. - ignoring and continuing.
call to search_tree_file with an absolute path, stripping
initial path separator. Hope this was intended...
mkisofs: Uh oh, I cant find the boot catalog directory '/home/luser/cdrom/boot/isolinux'!

Whats wrong!? i really want to get this working. Does anyone have an easier way of doign this, this is making me crazy!

Old 06-03-2005, 04:19 PM   #5
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Registered: Nov 2004
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Since you want to burn a cd anyway and since mkisofs is giving you trouble, instead of concentrating on regenerating the iso, just burn the files you recovered from the iso directly to a cd using k3b or your favorite cd burning software. Then if you really need the iso file, you can generate it from the cd.
Old 11-29-2016, 05:18 PM   #6
Jason Swartz
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Registered: Nov 2016
Location: Dallas Texas
Distribution: Linux Mint
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I know this thread is old but if anyone else came here to figure this out try the following
To Rebuild/Remake an ISO with mkisofs:

Lets assume the working folder for you extracted ISO image is ~/Desktop/CD
and for simplicity your boot file located at ~/Desktop/CD/boot.img

The code below will output the new ISO image at ~/Desktop/BOOTCD.iso

put the contents of the script below in a file called:


mkisofs -o "$ISONAME" -v -J -R -D -A "$CDLABEL" -V "$CDLABEL" \
-no-emul-boot -boot-info-table -boot-load-size 4 \
-b boot.img CD
Open a terminal at ~/Desktop and run the script:
sh ./

I have always has issues with mkisofs using true paths or ./CD
seems like mkisofs has issues with full paths and or using ./

This works for me and I hope this method and script helps someone else.

Good luck!
1 members found this post helpful.
Old 12-03-2016, 12:32 AM   #7
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Jason Swartz, hello and welcome to LQ.

Thanks for the information.

The original post is 11 years ago
Old 12-03-2016, 01:11 AM   #8
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Thanks for the info


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