Primary vs Extented partitions ?

[Alexios Chouchoulas]

On Mon, 1 Jun 1998, Sifalakis Manolis wrote:

>  Tha mporouse kapoios na mou dwsei ta fwta tou (i kapoio 
> reference tou), sxetika me tin diafora pou exoun ta primary
> apo ta extented partitions stous ide diskous ? Kai giati yparxei
> o periorismos twn 4 primary partitions ???

  Ola afta einai istorika, basika. Otan ftiaxthke to prwto MS-DOS pou
yposthrize HDD (to MSDOS 2.0 nomizw, mprrr), h kalh Microsoft skefthke "posa
leitourgika yparxoun gia PC? Yparxei to MS-DOS. Yparxei to CP/M-86. Yparxei
to XENIX (xm, yphrxe tote???). Wraia, kathe HDD tha xwraei tria partitions,
ena gia kathe leitourgiko, kai afhnoume ki ena gia future expansion".

  Paneksypnes kinhseis. :-)

  Ara, en etei 1998, oi sklhroi diskoi mas pou kontevoun dipshfia GB, exoun
max 4 partitions sto partition table tous. Gia na to glytwsoume afto,
yparxei to extended partition: ena apo ta tessera partitions einai typou 5
(EXTENDED) kai einai synithws megalo. Sthn arxh tou, yparxei ALLO ena
partition table, afth th fora megalytero (den thymamai posa partitions
xwraei, mallon peri ta 12 h 16 -- h einai periorismos tou Linux aftos???).
Einai ousiastika methodos cascading:

PARTITION TABLE
+-------------+
| /dev/hda1   |
+-------------+
| /dev/hda2   |
+-------------+
| /dev/hda3   |       EXTENDED PARTITION TABLE
+-------------+          +------------+
| /dev/hda4  -+--------->| /dev/hda5  |
+-------------+          +------------+
                         | /dev/hda6  |
                         +------------+
                         :     :      :

Kata th gnwmh mou tha htan kalytera ena wraio megalo partition table kai
eilikrina den kserw giati to ekanan etsi. Isws na mhn xwrage sto MBR. H
elleipsh dioratikothtas einai arketa gnwsto xarakthristiko ths MS (kai ths
IBM).

-------------------------- ,o88,o888o,,o888o. --------------------------------
Alexios Chouchoulas         '88    ,88'   ,88'   http://www.vennea.demon.co.uk 
The Unpronounceable One    ,o88oooo88ooooo88oo,     alexios at vennea.demon.co.uk

--
====================================================================
Gia boithia (h na diagrafhte) e-mail sto majordomo at argos.hol.gr
Ta archives tis listas einai sto http://www.argos.hol.gr/lists :
prin steilete kapoia erothsh psakte mipos exei hdh apanththei.
Gia opoiodipote problima stilte e-mail ston owner-linux-greek-users
====================================================================