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Thread: cfdisk and extended primary option (0x05)

  1. #1
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    cfdisk and extended primary option (0x05)

    I was trying to use cfdusk to create partition within a hard disk,,,,I could not create extended primary partition, though the tag (label) 0x05 for extended is available.

    How can I do that ? Is 05 is for this purpose or for something else ?

  2. #2
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    Any idea ?

  3. #3
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    cfdisk and extended primary option (0x05)

    You need to create an extended partition first and then a logical partition within. This excersie is moot unless you are acting as root. Also, manipulating a mounted drive is dangerous.

    Please post the output of: parted /dev/designation print

  4. #4
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    You need to create an extended partition
    How can I creat this,,,this is my origin thread about it ?

  5. #5
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    cfdisk and extended primary option (0x05)

    We need more information regarding your current disk structure and your exact actions in order to assist you.

  6. #6
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    I have already created two primary partitions on a hard disk and I want to create extended primary on this hard disk as well.
    How can I do that ?

  7. #7
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    cfdisk and extended primary option (0x05)

    In a terminal window shell, enter the command: parted /dev/your_hard_drive_here print . Please post the output.

    We need more information regarding your current disk structure and your exact actions in order to assist you.

  8. #8
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    I created the partitions on both hard disks by using system commander V9.0 utility,,,,then I used knoppix cfdisk utility to check both hard diks and the output was :

    [root@0[knoppix]# parted /dev/hdb print
    Warning: Unable to align partition properly. This probably means that another partitioning tool generated an incorrect partition table, because it didn't have the correct BIOS geometry. It is safe to ignore,but ignoring may cause (fixable) problems with some boot loaders.
    Ignore/Cancel? ignore

    Code:
    Disk geometry for /UNIONFS/dev/hdb: 0.000-38166.679 megabytes
    Disk label type: msdos
    Minor    Start       End     Type      Filesystem  Flags
    2       9536.625  12397.710  primary               lba
    3      12401.741  38162.219  extended              lba
    5      12401.771  12605.690  logical   ext3        boot
    6      12605.722  21603.032  logical   ext3
    7      21603.063  21861.892  logical   linux-swap
    Information: Don't forget to update /etc/fstab, if necessary.
    [root@0[knoppix]# parted /dev/hda print
    Warning: Unable to align partition properly. This probably means that another partitioning tool generated an incorrect partition table, because it didn't have the correct BIOS geometry. It is safe to ignore,but ignoring may cause (fixable) problems with some boot loaders.
    Ignore/Cancel? ignore

    Code:
    Disk geometry for /UNIONFS/dev/hda: 0.000-38162.250 megabytes
    Disk label type: msdos
    Minor    Start       End     Type      Filesystem  Flags
    1          0.031  14998.183  primary   ntfs        boot
    2      14998.184  17994.682  primary   fat32       lba
    3      17994.683  38162.219  primary   ntfs
    Information: Don't forget to update /etc/fstab, if necessary.
    Note: Since I failed to create extended partition on the above PC, and I am looking to use cfdisk to partition another HD on another PC , therefore I raised my thread here.

    Why did I receive the above warning message ?

  9. #9
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    Any idea or help ?

  10. #10
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    Quote Originally Posted by zillah
    Any idea or help ?
    Let's see the output of your
    $ sudo cfdisk

    Code:
                                      cfdisk 2.12p
    
                                  Disk Drive: /dev/hda
                            Size: 82348277760 bytes, 82.3 GB
                 Heads: 255   Sectors per Track: 63   Cylinders: 10011
    
        Name        Flags      Part Type  FS Type          [Label]        Size (MB)
     ------------------------------------------------------------------------------
        hda1        Boot        Primary   W95 FAT32 (LBA)                  10487.24
        hda5                    Logical   W95 FAT32                        15734.97
        hda6                    Logical   W95 FAT32                         7871.60
        hda7                    Logical   Linux ext3       [/]              5502.72
        hda8                    Logical   Linux swap / Solaris              1497.01
        hda9                    Logical   Linux ext3       [/home]          5000.98
        hda10                   Logical   Linux ext3       [/usr]          10001.95
        hda11                   Logical   Linux ext3       [/var]          10001.95
                                Pri/Log   Free Space                       16244.93
    
    
    
         [Bootable]  [ Delete ]  [  Help  ]  [Maximize]  [ Print  ]
         [  Quit  ]  [  Type  ]  [ Units  ]  [ Write  ]
    
                     Toggle bootable flag of the current partition
    Which HDD are you having trouble with ???
    Any other partitioning tool will not use the same scheme and cause errors
    For where NTFS is installed and active, use QTparted

    and also post the output of

    $ sudo fdisk -l /dev/hda (or hdb, whichever the prob is)

    you ARE doing this from a LiveCD....yes ?
    If not - boot to LiveCD using Knoppix26 1
    then leave off 'sudo' in the commands above - you'll be root already (pretty sure)

    OH.....BTW -- if you're trying for a Win95/98 Extended partition, the ID = 0x0F (Partition hda2 below)
    $ sudo cfdisk
    then select -> Print
    then select -> Table
    anyfilename (leave it blank)
    Code:
    Partition Table for /dev/hda
    
             ---Starting---      ----Ending----    Start     Number of
     # Flags Head Sect Cyl   ID  Head Sect Cyl     Sector    Sectors
    -- ----- ---- ---- ---- ---- ---- ---- ---- ----------- -----------
     1  0x80    1    1    0 0x0C  254   63 1023          63    20482812
     2  0x00  254   63 1023 0x0F  254   63 1023    20482875   108615465
     3  0x00    0    0    0 0x00    0    0    0           0           0
     4  0x00    0    0    0 0x00    0    0    0           0           0
     5  0x00  254   63 1023 0x0B  254   63 1023          63    30732282
     6  0x00  254   63 1023 0x0B  254   63 1023          63    15374142
     7  0x00  254   63 1023 0x83  254   63 1023          63    10747422
     8  0x00  254   63 1023 0x82  254   63 1023          63     2923767
     9  0x00  254   63 1023 0x83  254   63 1023          63     9767457
    10  0x00  254   63 1023 0x83  254   63 1023          63    19534977
    11  0x00  254   63 1023 0x83  254   63 1023          63    19534977

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