#276 imgmount crash

0.65
closed
5
2012-09-07
2006-10-31
Zsolt Petrik
No

Hi

When I try to imgmount a floppy image, dosbox crashes.
It`s kind a NULL pointer type crash, can not read
adress 0x0.

Sincerely, pezia

Discussion

  • Peter Veenstra
    Peter Veenstra
    2006-11-02

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    are you using a zipped image perharps ?
    DOSBox doesn't handle those.
    If the image isn't copyrighted, could you make it available
    for testing ?

     
  • Zsolt Petrik
    Zsolt Petrik
    2006-11-02

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    I made the image with rawrite, it was not zipped.
    Im sorry, but these are backups of my original DOS disks, so I think I cant make it available for testing.

     
  • c2woody
    c2woody
    2006-11-02

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    Oh please, you give zero information about
    the problem and your setup in the first
    posting, don't provide ANYTHING how to
    reprodce the problem, and want it to be
    solved by magic guessing or what???

    Please write down exactly how you created
    the image file, how you mounted it etc.
    And create some dummy image file with
    useless files or something where you can
    reproduce the problem.

     
  • Zsolt Petrik
    Zsolt Petrik
    2006-11-02

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    Oh I`m sorry. Im not good at bugreports.
    So here are the details:
    config: the default config after installation of the windows
    version of DOSBox 0.65
    command: imgmount a c:/disk1.img -t floppy

    The floppy images were created from original MS-DOS 6.22
    disks (neither can be mounted, it is a 4 disk set) using
    RawWrite for Windows 0.3

    stderr.txt and stdout.txt are empty.

    Every time i run imgmount as above, it crashes. I does not
    matter wich disk image I use. And I can't create more images
    for testing, since I have no floppy drive in this computer.

    My config:
    OS: MS Windows XP hungarian with SP2 and hotfixes.
    DOSBox install path: E:\Program Files\DOSBox-0.65\

    AMD AthlonXP 2500+ cpu

    I hope this helps. If you need more information just tell
    and I`ll do my best to help you.

     
  • c2woody
    c2woody
    2006-11-04

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    There are pre-built floppy images on the net,
    for example from freedos, you might want to
    test those to see if it's a general problem
    on your system (they work fine here).
    The msdos floppies might use a special disk
    geometry, dosbox has only support for standard
    disk sizes.
    Most of the time it's enough to copy all files
    from ALL disks into one directory and mount
    that as drive a (mount a c:\dosdisks).

     
  • Zsolt Petrik
    Zsolt Petrik
    2006-11-04

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    qbix79 found the sollution. The floppy images were write
    protected. This caused the problem. After allowing write
    access, imgmount worked fine.

     
  • Peter Veenstra
    Peter Veenstra
    2007-01-10

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    problem solved.
    Sorry for keeping it open this long