extended / logical partition

Peter Smith pasmith at wbmpl.com.au
Mon May 10 23:32:18 UTC 2004


Hi Jim,

It looks to me that you have done it already.

/dev/hda4 is an extended partition which contains /dev/hda5 - note that the
start and end sectors are identical.

You cannot use /dev/hd4 directly; all you get is /dev/hd5.

Regards,
Peter

-----Original Message-----
From: redhat-list-bounces at redhat.com
[mailto:redhat-list-bounces at redhat.com]On Behalf Of JCA
Sent: Tuesday, 11 May 2004 8:49 AM
To: pasmith at wbmpl.com.au
Cc: General Red Hat Linux discussion list
Subject: Re: extended / logical partition


Thanks Peter,

Here is my drive.  What I was trying to do is replace the Win95 with a
Linux ext3 file system on /dev/hda4.  So there is no easy way to do it
with fdisk?

   Device Boot    Start       End    Blocks   Id  System
/dev/hda1             1      2416  19406488+   0  Empty
/dev/hda2   *      2417      2429    104422+  83  Linux
/dev/hda3          2430      2462    265072+  82  Linux swap
/dev/hda4          2463      4865  19302097+   f  Win95 Ext'd (LBA)
/dev/hda5          2463      4865  19302066   83  Linux



Peter Smith wrote:

>Hi Jim,
>
>An extended partition is just a container for logical partitions.
>
>If your existing logical partition does not use all the extended partition,
>you can create and format a second logical partition in the unused space.
>
>Otherwise you will need to shrink your existing logical partition first -
>google for PartitionMagic for example.
>
>See http://www.faqs.org/docs/Linux-HOWTO/Large-Disk-HOWTO.html for
>information about disk partitions.
>
>Regards,
>Peter
>
>-----Original Message-----
>From: redhat-list-bounces at redhat.com
>[mailto:redhat-list-bounces at redhat.com]On Behalf Of JCA
>Sent: Tuesday, 11 May 2004 3:00 AM
>To: redhat-list at redhat.com
>Subject: extended / logical partition
>
>
>Hello,
>
>I have an extended partition that I'd like to reformat for linux, but
>don't want to loose the logical partition it contains.  With fdisk I
>need to delete it first, but then I loose the logical partition.
>Am I missing something?
>
>It it possible to format the extended without loosing the logical
partition?
>
>Thanks,
>Jim
>
>
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