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Re: Linux hard drive sequence (/hdx drive mappings) Question clarification

On 2005-07-06, CBFalconer <cbfalconer@yahoo.com> wrote:
>
> You may have only two primary partitions, and two extended ones. 
> Each extended one can contain 4 subsidiary partitions, for a total
> of 10 partitions.  Dos/windoze won't use this configuration.
>
>     disk--->table-+-->pri-1
>                   +-->pri-2
>                   +-->ext-3-+->sub-5
>                   |         +->sub-6
>                   |         +->sub-7
>                   |         +->sub-8
>                   |
>                   +-->ext-4-+->sub-9         
>                             +->sub-10
>                             +->sub-11
>                             +->sub-12
>
> Note that ext-3 and ext-4 contain other partitions, and are not
> usable in themselves.  This shows why hda1 through hda4 are always
> primary partitions.

I like your ascii-art, but I don't understand your figures:
 2 primary; 2 extended; 4 subsidiary partitions  ?
 
 Here's my [Oberon S3's] Partitions.Show output:-
 
 Disk: IDE0, 74GB, ST380011A
IDE0#00  76319MB --- (Whole disk)
IDE0#01   1004MB  11 * Win 95/98, FAT32
IDE0#02   1004MB  11 Win 95/98, FAT32
IDE0#03   1004MB 131 Linux fs
IDE0#04  43496MB   5 Extended
IDE0#05   1027MB 131 |Linux fs
IDE0#06   2055MB 131 |Linux fs
....
IDE0#29    125MB  76 |Native Oberon, Aos
IDE0#30     31MB 131 |Linux fs
IDE0#31     31MB 131 |Linux fs
IDE0#32    243MB 131 |Linux fs
IDE0#33    243MB 131 |Linux fs
IDE0#34  29800MB --- (Free)

Disk: IDE1, 8063MB, WDC WD84AA
IDE1#00   8063MB --- (Whole disk)
IDE1#01    503MB   6 * DOS FAT16 >= 32M
IDE1#02    800MB 131 Linux fs
IDE1#03   1200MB 131 Linux fs
IDE1#04   5559MB   5 Extended
IDE1#05    800MB 131 |Linux fs
IDE1#06     80MB 130 |Linux swap
IDE1#07    128MB  76 |Native Oberon, Aos
IDE1#08    244MB  76 |* Native Oberon, Aos
IDE1#09     16MB  76 |Native Oberon, Aos
IDE1#10     16MB  76 |Native Oberon, Aos
IDE1#11     16MB  76 |Native Oberon, Aos
....
IDE1#41   1153MB 131 |Linux fs
IDE1#42   1222MB 131 |Linux fs

Disk: Diskette0, GetSize: no media, removable
-------
I used linux to create the partitions.
cfdisk can create & see them.
As I remember fdisk has a problem above hdx16.


== Chris Glur.

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7/7/2005 5:48:55 AM
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 news@absamail.co.za wrote:

> On 2005-07-06, CBFalconer <cbfalconer@yahoo.com> wrote:
>>
>> You may have only two primary partitions, and two extended ones.
>> Each extended one can contain 4 subsidiary partitions, for a total
>> of 10 partitions.  Dos/windoze won't use this configuration.
>>
>>     disk--->table-+-->pri-1
>>                   +-->pri-2
>>                   +-->ext-3-+->sub-5
>>                   |         +->sub-6
>>                   |         +->sub-7
>>                   |         +->sub-8
>>                   |
>>                   +-->ext-4-+->sub-9
>>                             +->sub-10
>>                             +->sub-11
>>                             +->sub-12
>>
>> Note that ext-3 and ext-4 contain other partitions, and are not
>> usable in themselves.  This shows why hda1 through hda4 are always
>> primary partitions.
> 
> I like your ascii-art, but I don't understand your figures:
>  2 primary; 2 extended; 4 subsidiary partitions  ?
>  
>  Here's my [Oberon S3's] Partitions.Show output:-
>  
>  Disk: IDE0, 74GB, ST380011A
> IDE0#00  76319MB --- (Whole disk)
> IDE0#01   1004MB  11 * Win 95/98, FAT32
> IDE0#02   1004MB  11 Win 95/98, FAT32
> IDE0#03   1004MB 131 Linux fs
> IDE0#04  43496MB   5 Extended
> IDE0#05   1027MB 131 |Linux fs
> IDE0#06   2055MB 131 |Linux fs
> ...
> IDE0#29    125MB  76 |Native Oberon, Aos
> IDE0#30     31MB 131 |Linux fs
> IDE0#31     31MB 131 |Linux fs
> IDE0#32    243MB 131 |Linux fs
> IDE0#33    243MB 131 |Linux fs
> IDE0#34  29800MB --- (Free)
> 
> Disk: IDE1, 8063MB, WDC WD84AA
> IDE1#00   8063MB --- (Whole disk)
> IDE1#01    503MB   6 * DOS FAT16 >= 32M
> IDE1#02    800MB 131 Linux fs
> IDE1#03   1200MB 131 Linux fs
> IDE1#04   5559MB   5 Extended
> IDE1#05    800MB 131 |Linux fs
> IDE1#06     80MB 130 |Linux swap
> IDE1#07    128MB  76 |Native Oberon, Aos
> IDE1#08    244MB  76 |* Native Oberon, Aos
> IDE1#09     16MB  76 |Native Oberon, Aos
> IDE1#10     16MB  76 |Native Oberon, Aos
> IDE1#11     16MB  76 |Native Oberon, Aos
> ...
> IDE1#41   1153MB 131 |Linux fs
> IDE1#42   1222MB 131 |Linux fs
> 
> Disk: Diskette0, GetSize: no media, removable
> -------
> I used linux to create the partitions.
> cfdisk can create & see them.
> As I remember fdisk has a problem above hdx16.
> 
> 
> == Chris Glur.

I am not sure whether you are asking why the /dev/hda??? are not in
sequence.  Mine are all over the place, and short of formatting the disk
and partitioning it anew, there seems to be nothing I can do about it.

Doug L.
-- 
ICQ Number 178748389. Registered Linux User No. 277548.
I think there is a world market for maybe five computers.
- Thomas Watson, chairman of IBM, 1943

0
laidlaws (530)
7/7/2005 6:45:24 AM
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