Re: qtparted and kernel disagree about partitions
On Thu, 4 Mar 2010 11:57:58 -0500 (EST), Boyd Stephen Smith Jr. wrote:
> Stephen Powell wrote:
>> On Thu, 4 Mar 2010 10:44:10 -0500 (EST), David Goodenough wrote:
>>> I have a hard drive with a primary partition and an extended partiton.
>>> QTParted says that it has /dev/hda1, /dev/hda2 and /dev/hda5 which is
>>> what one would expect, but when I boot the disk the kernel reports
>>> that there are only the /dev/hda1 and /dev/hda2 partitons, no /dev/hda5.
>>
>> What happened to /dev/hda3 and /dev/hda4? How can there be a /dev/hda5
>> without all the partitions in between?
>
> Using "MS-DOS" partitioning:
>
> 1-4 are the Primary partitions. Their extents are recorded on sector 0 of the
> drive.
>
> 5-15 are the Logical partitions. Their extents are recorded in a partition
> table store inside primary partition (which is not otherwise used).
I think I knew that at one time, but it's been so long since I used an
"extended partition" and "logical drives" that I had forgotten it.
Thanks for the partitioning lesson.
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