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Thread: Can't acess XP partitions or floppy after HD install!

  1. #1
    Junior Member
    Join Date
    Jul 2006

    Can't acess XP partitions or floppy after HD install!

    I seem to have posted this message to the wrong thread, so I am reposting it here!

    Can't acess XP partitions or floppy after HD install!

    I have sucessfully installed Knoppix 5.01 as Debian - like system but I have experienced some problems:

    1. Can't mount XP partitions
    2. Can't mount floppy
    3. Can't make Linux partition writable
    3. Can't wfite to USB drive (it does let me read it, though)
    4. Can't change boot order (I would still like to have my XP as default system)

    I have previously installed v3.4 the same way, and it worked fine! I have decided to switch to 5.01 beacuse of the viedo card support (I could't install nvidia drivers under 3.4)

    I have installed it as a 'beginer - instalation': same results!
    I have installed 'knoppix - instalation' which gives me read acess to HD's but ti keeps starting without DMA and I have distinct feeling that it is not the right thing Wink

    So, I know that I have asked a lot of questions for the first message, but I have the feeling that amswer would be same for all... So, please halp!

  2. #2
    Junior Member
    Join Date
    Jul 2006
    Your WinXP partition is probably NTFS. It is dangerous to write to it.
    A fat32 Winxp partition works but you can't revert them. Most people
    use a fat32 transfer partition that either OS can read and write.

    I use WinXP's boot.ini file to dual boot (FC4 in this case):

    [boot loader]
    default=multi(0)disk(0)rdisk(0)partition(1)\WINDOW S
    [operating systems]
    multi(0)disk(0)rdisk(0)partition(1)\WINDOWS="Micro soft Windows XP Professional" /noexecute=optin /fastdetect

    Don't install the booting of *nix to the MBR but to the boot partition.
    This order makes WinXP the default. The dd command is used.

  3. #3
    Junior Member
    Join Date
    Jul 2006
    Q: How do I mount my ntfs partition in linux?
    A: As root, make a directory for the mount point and run the 'mount' command
    [luser@localhost luser]$ su -
    [root@localhost root]# mkdir /mnt/ntfs
    [root@localhost root]# mount -t ntfs /dev/hda1 /mnt/ntfs
    Assuming your ntfs partition is hda1, it is now mounted at /mnt/ntfs

    ** Note: the device name depends on your machine
    ** Note: the mount point can be any location/name that you like

    If you use win98 or fat32 use mount -t vfat ... /mnt/win98

  4. #4
    Junior Member
    Join Date
    Jul 2006
    Thank you, textonyx, you seem to have answered my question!

    I'll try your suggestions and report the outcome!

    So, I should make fat partition for writing documents modified in linux! Maybe I could use USB drive instead? I assume the same procedure is valid for it too?

    Thank you once again!


  5. #5
    Junior Member
    Join Date
    Jul 2006
    I think using USB should work and the default is fat32.
    A floppy is /dev/fd0 and can be mounted at /mnt/floppy
    some systems make the floppy directory for you, or
    you can just click on the floppy from the desktop.

    You can store files from Linux in your Linux directory
    and again on a fat32 directory which will be different
    from hda1 maybe hda5 or hda7. If you use USB then
    you need to find out what name is assigned to that
    device to make and use an appropriate /dev/sdax?
    I don't have personal experience using USB this way.

    For instance you could probably save an OpenOffice
    as a .doc file on the storage/transfer fat32 folder
    and later open it up with MS Word, edit it, and
    store it back on the fat32 folder and re-open it
    later with OpenOffice. It works like uploading a
    file to a web site on the internet from Linux (or XP)
    and then booting into the other OS and downloading
    that file into its own partition. Just a transfer. For
    small files you can send yourself email with an
    attachment and then boot into the other OS and
    download/receive that email with an email client.
    The file needs to be cross-platform compliant
    like a text file or most fonts. Perhaps you would
    benefit from reading an intro to Linux tutorial
    that covers basic commands like using "mount",
    which might mention how to make mounting the
    fat32 partition automatic with Linux(if you want).
    I burned Knoppix in case of hard drive problems.


  6. #6
    Junior Member
    Join Date
    Jul 2006
    Thanks Stephen.

    However, I have encountered another problem. After creating ntfs folder, I am able to open the disk as the contents of that folder with file manager in super user mode (not sure that I have used the right terms, I am writing this from my XP), but not as the normal user. Also, icons representing drives on my desktop are still unoprational...

    This made me to try to reinstall knoppix ver 4 as debian - like system, which I did. Here, everything works fine, without any glitches.

    I have also managed to install nvidia drivers for my video card! soon I'll be true Linux Wizard ;D

    Previously I have alredy installed grub to mbr, so your advice about that is kinda late... I still canot change boot sequence (grub info within the Knoppix leaves a lot to be desired- I cannot make any sense of it!)

    I will still use my USB key as file- transfer device


  7. #7
    Junior Member
    Join Date
    Jul 2006
    I guess you are pretty happy! There is a file /etc/grub.conf
    that contains your booting information. To change the
    default boot OS from Knoppix to WinXP I think all you
    have to do is change the line
    default=0 to default=1
    assuming that Knoppix is booting first and
    that the default=? line is set to 0
    save the file, after changing 0 to 1 (most likely).

    It can take hours of work to fix a corrupt mbr file.
    So I recommended making a backup of the MBR, in
    this thread: WinXP users safeguard threat to MBR
    It is free and takes minutes.

    Make a backup of your grub.conf file before you
    modify it. cp it to something memorable.
    Then if something goes wrong when you change the
    default boot order, you can use your cd to boot and
    mount your hard drive partition. rm the grub.conf
    you just created and cp your memorably renamed
    grub.conf back to grub.conf with the old defaults.

    I have seen people recommend a more complicated
    method, but try the easy way first. I used Google, to research grub.conf -> defaults

    title Microsoft Windows XP Professional
    map (hd1) (hd0)
    map (hd0) (hd1)
    rootnoverify (hd1,0)
    chainloader +1

    Good luck,

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