Date: Wed, 02 Sep 1998 18:02:21 -0600 From: Brett Glass <brett@lariat.org> To: Dan Nelson <dnelson@emsphone.com>, sab@seanet.com Cc: Doug White <dwhite@resnet.uoregon.edu>, questions@FreeBSD.ORG Subject: Re: MSDOS extended partitions and "slices" Message-ID: <199809030005.SAA02250@lariat.lariat.org> In-Reply-To: <19980902175652.A11500@emsphone.com> References: <199809022113.PAA00535@lariat.lariat.org> <199808080608.AAA16222@lariat.lariat.org> <199808021131.FAA12204@lariat.lariat.org> <199808080608.AAA16222@lariat.lariat.org> <199809021901.MAA21131@two.sabami.seaslug.org> <199809022113.PAA00535@lariat.lariat.org>
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At 05:56 PM 9/2/98 -0500, Dan Nelson wrote >Sure it's logical. FDISK slices are always numbers; disklabel >partitions are always letters. DOS logical drives are not slices! They're the equivalent of disklabel partitions and should have letters at the end. --Brett > >wd1s1 .. wd1s4 are the four primary fdisk slices. Any or all of them >MAY be a container (i.e. extended partition type). If any of them are, >then they are scanned for valid partition entries (including more >nested extended partitions), and any of those will appear at wd1s5, s6, >etc. The kernel sets an arbitrary limit of 32 of these slices. > >So say you had a mythical 14G IDE drive partitioned with FAT16 DOS >drives: > >+--------+-----------------------------------------------------+ >| C: | extended partition | >+--------+- - - - + - - - -+- - - - + - - - - - - - - - - - - -+ > | D: | E: | F: | extended part. | > +--------------------------+ - - - - - - - - - - - - -+ > | G: | H: | I: | > +--------------------------+ > >(boy, I respect Terry more now. Drawing ascii-art isn't easy :) > >In your naming scheme, what would drive 'G:' be? wd1s2da ? FreeBSD >would name them like this (after looking at the code in >diskslice_machdep.c; I could be wrong): > >wd1s1 C: >wd1s2 extended partition container #1 >wd1s3 empty >wd1s4 empty >wd1s5 D: >wd1s6 E: >wd1s7 F: >wd1s8 extended partition container #2 >wd1s9 G: >wd1s10 H: >wd1s11 I: > > -Dan Nelson > dnelson@emsphone.com To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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