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Old 02-04-2006, 06:19 AM   #1
Registered: Nov 2003
Location: Zwolle
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Mountiso kde script mounting errors

I'm using the script from Which used to work fine until this latest version. For some reason I get a mounting iso error with all iso's: 'ERROR: "/home/powadha/abc.iso" has data error! File might be of wrong type or corrupted. Just mounting the file by hand works fine so I know this iso (and the lot) are fine. Does anyone know how to fix this script since there is no responce on the KDE site?
It seems to me that the new Iso check in the script just errors out all iso's

Old 02-05-2006, 06:28 PM   #2
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Don't know the solution, but the problems is, I think, that the check for a valid ISO 9660 fs assumes that the image is not a bootable (or autorun) image.

If you look at the shell code in /usr/share/apps/mountiso/, the check is made like this:
function check_iso {
  TYPE=`head "$1" | od -Ax -s | head -n 1 | cut -f 1 -d " " `
    case "$TYPE" in
        # ISO image
        CHECK="Standard ISO9660 image"
        # ISO image (by WinISO)
        CHECK="Standard ISO9660 image (by WinISO)"
        # NRG image
        CHECK="NRG image (by Nero)"
        # XDVDFS image
        CHECK="XBOX DVD image"
        # Anything else
        CHECK="Unknown format"
Looking at a ISO file that can be used to create a valid image, I see this:
$ cat /var/share/z/iso/AlDenata.ISO | od -Ax -s | less
00007f startUp.htm
002cd1 E*^
00490c bV)[
004967 !q\
007fd7 1k$
009318 Win32                           ALDENATA
00965f 0000000000000000
009c98 %/E
009f8f 0000000000000000
00aebd mkisofs 1.15a12 -o aldenata.iso -J -r -hfs -auto startUp.htm -V ALDENATA
-hide-hfs shellexec.exe /aldenata
(Where the ... indicates several blank lines.)

As you can see, this will fail the test.

Of course, this ISO file is also not mountable on the loopback device either.

So I'd suggest you play with the od -Ax -s (or hexdump) and your ISO file to see if you can find an offset that will work for you.

Clearly, though, looking at the first three bytes of the first record is not, in every case (or most cases?) sufficient.

You could try modifying the function to default to Standard ISO9660 image and see if that would work for you, since your ISO files are, at least, mountable. (I don't really need mine to be mountable in Linux. That /var/share/z/ directory is a FAT32 drive for sharing files between Windows and Linux.)
Old 02-06-2006, 12:41 AM   #3
Registered: Nov 2003
Location: Zwolle
Distribution: Arch
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Thanx for the response, I'll start trying to get it to work. It's a usefull script for me since I use quite some iso's. And being lazy it's nice to have it under an action menu by just right clicking the file. I'm not so good with scripts but now I know where to start.
Old 05-17-2006, 12:57 PM   #4
Registered: Nov 2003
Location: Zwolle
Distribution: Arch
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Well, got it fixed. Made a small howto for Dutch users at


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