Re: DOS Fdisk doesn't see Linux partitions
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Any good book on DOS internals will explain the partition behavior. DOS
looks for primary partitions first. Since DOS only allows one primary
partition on each disk, it finds the primary partition on the first
drive, and then looks at each succeeding drive for a primary DOS
partition in the partition table. After it's done that, it goes back to
the first disk and examines the contents of the extended partitions. It
assigns drive letters to any logical DOS partiotns it finds. It
continues on to each succesive disk and repeats this step.
As far as your second question goes ... that's weird. Did you create
the partition with DOS fdisk or Linux? I personally have never had
problems with making DOS partitions with Linux fdisk, but I have heard
of folks who have. What version of DOS are you running? Have you tried
reformatting that partition? I personally would be wary of DOS trying
to write to part of the disk that it's not supposed to be messing with.
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On Sat, 10 May 1997, Ken Gaugler wrote:
:I recently asked for "ideas about moving Debian to another disk",
:and got some good suggestions. I decided to use Paul Serice's
:excellent procedure he has on his page at
:
:http://lac.laci.net/pweb/ugs/mini_howto.html
:
:Almost everything went well. I moved the Linux partitions from the
:second IDE disk to the first, then made the [original] first drive
:the slave, and added a large first drive. I partitioned the first
:drive (/dev/hda) into 3 DOS partitions.
:
:In my original configuration, the second drive had only LInux partitions
:on it. Under the new configuration I wanted to use the first part
:of the slave [Linux] drive for DOS. I partitioned it this way:
:
:/dev/hdb1 375MBytes DOS
:/dev/hdb2 128Mbytes Linux (root)
:/dev/hdb3 100MBytes Linux (swap)
:/dev/hdb4 remainder of disk (/usr)
:
:There are two strange things happening now. Dos reports the DOS
:partition on the second drive as D:, then the second and third
:partitions on the first drive as E: and F:. I am confused why
:the partition on the second drive would appear before the second
:and third partitions of the first drive.
:
:Also, DOS reports that D: (the dos partition on the second drive)
:as being 1.2Gigs -- that is how big the whole drive is. DOS
:doesn't see the Linux partitions there at all. I know they are there,
:I am running them right now as I type this!
:
:What is going on? How can I fix this so I get the correct amount of
:disk space reported for the DOS partition on my Linux drive?
:BTW I have the Linux drive set up for LBA in the [AMI]BIOS, and the
:DOS drive is set up for Extended CHS.
:
:I hope someone can help me figure this out!
:
:Thanks.
:
:
:--
:Ken Gaugler N6OSK Santa Clara, California
:email: keng@wco.com URL: http://www.wco.com/~keng
:"The life of a Repo Man is always INTENSE..."
:
:
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