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Thread: Using cfdisk - Partition Manager.

  1. #1

    Using cfdisk - Partition Manager.

    This will be a quick tutorial on how to use the disk space allocator "cfdisk." What it does is use geometry to write sectors and heads to the disk (properly.)

    cfdisk [ options] [device]

    example would be cfdisk -Pt /dev/hda // of course you can have loads of choices like just plain old cfdisk /dev/hda || /dev/hdb || /dev/hdc

    the -P being to format

    the t being to display in raw format.

    now you may append with the following commands -

    -c <cyclinder #> pretty self explanatory

    -s <sector #> again, self explanatory

    -h <head #> once again

    -z Partition from scratch. Not good to do if you are wanting to use data already on the harddisk!

    -a really not used much, all it does is change the highlight from reverse video to cursor

    and again -P for format. t, s, and r can be added. r = raw data s = sector order t = raw format.


    Now there are loads of commands for you to be able to use.

    Note: these are commands you use once you are in cfdisk ready to operate.

    W - this is used to write to the harddisk.

    u - change the units for size. Like mb to gb, kb to mb etc

    t - prompt for a new file system type, and then change that time. In most systems a screen will appear that will give you numbers to choose from. Example: linux swap = 82

    q - quit without saving what you just did

    p - simply show you the partition table.

    n - create NEW partition.

    h - Get help

    g - alter the disks cylinders, heads, blah you dont need to do this for linux

    d - delete a partition table

    b - change whether a partition is bootable or not. For instance / would be one you would type b next to.

    up arrow, down arrow - move among partitions.


    Have fun with cfdisk, its great.

  2. #2
    Join Date
    Oct 2002
    Thanks for the info, I've always preferred cfdisk to fdisk... nothing like having a hundred file systems to choose from
    Have you filled out an ID-10-T or PEBKAK form lately?

  3. #3
    very very true. thats the main reason i chose to write it over fdisk.

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