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Old 06-02-2005, 04:25 PM   #1
Registered: Aug 2002
Posts: 71

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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, 04:42 PM   #2
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Registered: Mar 2005
Location: Las Vegas, NV
Distribution: Mandriva Slackware FreeBSD
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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, 04:47 PM   #3
Registered: Aug 2003
Location: Brisbane, Australia
Distribution: Red Hat Enterprise Linux 4
Posts: 120

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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, 09:33 PM   #4
Registered: Aug 2002
Posts: 71

Original Poster
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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, 03:19 PM   #5
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Registered: Nov 2004
Distribution: suse 10.2
Posts: 9

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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.


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