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><H1
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><A
NAME="CFDISK"
></A
>Appendix: Using cfdisk to partition your harddisk</H1
><A
NAME="AEN902"
></A
><DIV
CLASS="SECT2"
><H2
CLASS="SECT2"
><A
NAME="HARDDISK-NAMES"
></A
>Hard disk names</H2
><P
> SCSI harddisks are named with sdx, where x is a hardisk
letter. The disk with the lowest SCSI ID on the first
controller will become sda, the next lower sdb, an so on.
</P
><P
> If you have IDE harddisks, they are called hda, hdb, hdc, and
so on instead, where hda is the master disk on the first
controller, hdb is the slave disk on the first controller, hdc
is the master disk on the second controller, and so on.
</P
></DIV
><DIV
CLASS="SECT2"
><H2
CLASS="SECT2"
><A
NAME="HARDDISK-PARTITIONS"
></A
>Harddisk partitions</H2
><P
> GNU/Linux systems often uses a partition scheme inherited from
MS-DOS. With this, a harddisk can have up to four primary
partitions. If you want more, you have to make one of these an
extended partition where you can make several logical
partitions. The partitions are named with the disk they belong
to, and a number. The first primary partition on the first
SCSI disk is therefore sda1, the second primary partition is
sda2, and so on. The first and second logical partition on an
extended partition on the first SCSI disk is sda5 and sda6,
and so on. If this makes absolutely no sense to you at all,
try to read <A
HREF="x947.htm"
>the Section called <I
>Appendix: More on partitioning</I
></A
>. </P
></DIV
><DIV
CLASS="SECT2"
><H2
CLASS="SECT2"
><A
NAME="STARTING-CFDISK"
></A
>Starting cfdisk</H2
><P
> you start cfdisk from the command line with the command
<PRE
CLASS="SCREEN"
> cfdisk /dev/sdx
</PRE
>
where x is the SCSI hardisk letter, like a, b, c, d, etc. So if I
want to partition the first harddisk on the SCSI controller, I'll
enter the command
<PRE
CLASS="SCREEN"
> cfdisk /dev/sda
</PRE
>
</P
></DIV
><DIV
CLASS="SECT2"
><H2
CLASS="SECT2"
><A
NAME="USING-CFDISK"
></A
>Using cfdisk</H2
><DIV
CLASS="SECT3"
><H3
CLASS="SECT3"
><A
NAME="THE-USER-INTERFACE"
></A
>The user interface</H3
><P
> After you have started cfdisk you'll get an interface where
the current partition table is listed with the names and
some data about each partition, and some command buttons on
the bottom of the screen. To change between partitions, use
the up and down arrow keys. To change between commands, use
the left and right arrow keys.
</P
></DIV
><DIV
CLASS="SECT3"
><H3
CLASS="SECT3"
><A
NAME="DELETING-A-PARTITION"
></A
>Deleting a partition</H3
><P
> To delete an existing partition, highlight it with the up and down
keys, select the <SPAN
CLASS="emphasis"
><I
CLASS="EMPHASIS"
>Delete</I
></SPAN
> command with the left and right arrow
keys, and press Enter.
</P
></DIV
><DIV
CLASS="SECT3"
><H3
CLASS="SECT3"
><A
NAME="MAKING-A-NEW-PARTITION"
></A
>Making a new partition</H3
><P
> To make a new partition, select the <SPAN
CLASS="emphasis"
><I
CLASS="EMPHASIS"
>New</I
></SPAN
>
command with the left and right arrow keys, and press
enter. You'll get the choice between a primary and a logical
partition. If you want a logical partition, the program will
automatically make an extended partition for you. Then you
must choose the size of the partition (in MB). If you can't
enter a value in MB, return to the main screen with the Esc
key, and select MB with the <SPAN
CLASS="emphasis"
><I
CLASS="EMPHASIS"
>Units</I
></SPAN
>
command.
</P
></DIV
><DIV
CLASS="SECT3"
><H3
CLASS="SECT3"
><A
NAME="SET-THE-TYPE-OF-A-PARTITION"
></A
>Set the type of a partition</H3
><P
> To set the type of a partition, for bootable PReP, Linux
swap or Linux ext2, highlight the actual partition, and
select the <SPAN
CLASS="emphasis"
><I
CLASS="EMPHASIS"
>Type</I
></SPAN
> command. You'll get a
list over different types. Press space, and you'll get even
more. Find what type you need, and enter the number at the
prompt.
</P
></DIV
><DIV
CLASS="SECT3"
><H3
CLASS="SECT3"
><A
NAME="MAKE-A-PARTITION-BOOTABLE"
></A
>Make a partition bootable</H3
><P
> To be able to boot from a primary partition, you need to
make it bootable. Highlight the actual partition and select
the <SPAN
CLASS="emphasis"
><I
CLASS="EMPHASIS"
>Bootable</I
></SPAN
> command.
</P
></DIV
><DIV
CLASS="SECT3"
><H3
CLASS="SECT3"
><A
NAME="WRITE-THE-RESULT-TO-DISK-AND-QUIT"
></A
>Write the result to disk and quit</H3
><P
> When you are content with the layout of the disk, select the
<SPAN
CLASS="emphasis"
><I
CLASS="EMPHASIS"
>Write</I
></SPAN
> command. The partition table will
be written to disk. Remember that <SPAN
CLASS="emphasis"
><I
CLASS="EMPHASIS"
>this will
destroy all data on partitions you have deleted</I
></SPAN
>
or changed. You should therefore be very sure that you want
to do this before actually press the Return key.
</P
><P
> To exit the program, select the <SPAN
CLASS="emphasis"
><I
CLASS="EMPHASIS"
>Quit</I
></SPAN
> command.
</P
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>Appendix: More on partitioning</TD
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