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Date: Sun, 14 Dec 1997 12:01:35 -0800 (PST)
From: Julian Elischer <julian@whistle.com>
To: Bryan Batten <BryanBatten@compuserve.com>
cc: Questions for FreeBSD <freebsd-questions@FreeBSD.org>
Subject: Re: Using Extended Partitions
In-Reply-To: <199712140027_MC2-2BDC-1D3D@compuserve.com>
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As you discovered, the problem is mapping which slice on BSD corresponds
to which slice on Linux.

booting BSD with the -v option
(Boot: -v) <-at the boot prompt

that shoudl print out verbose information about how BSD views each slice..
you should then be able to work out which is which

sorry I can't be much more help.

julian

On Sun, 14 Dec 1997, Bryan Batten wrote:

> Hi Julian,
> 
> Thanks for your input regarding my problem. On 12/11/97, you wrote:
> 
> > I'm not totally sure what /dev/hdb6 under FreeBSD,
> > The first 4 real partitions are called wd0s1 through wd0s4
> > The extended partitons are then known as: wd0s5-> wd0s30
> 
> Turns out I did need to do MAKEDEV's for the extended partitions - but, it
> looks like although creating wd1s5 - wd1s8 is necessary, it's not
> sufficient.
> 
> Since the installation procedure doesn't let me select from anything other
> than wd1s1 - wd1s4, I ended up making my own disklabel file, which I used
> with the command "disklabel -Rr wd1s6 wd1s6.lbl". (wd1s6.lbl is the name of
> my label file.) The response was a bunch of error messages, one of which
> said "No label on wd1".
> 
> One thing I'm unsure of is whether hdb6 would correspond to wd1s6, or
> wd1s5? The reason for this is that, in the Linux world, there can be either
> four primary partitions, or three primary partitions and *one* extended
> partition, which in turn can contain several logical partitions. hdb4
> corresponds to the single allowed extended partition. hdb5 - hdb8 are
> logical partitions within that extended partition. I can only create Linux
> file systems on hdb5 - hdb8. hdb4 is visisble as a device but isn't
> "filesystem'able". Is the same thing true for FreeBSD? i.e. wd1s4 standing
> for the extended partition, while wd1s5 - wd1s8 correspond to the several
> logical partitions. Or is the extended partition itself totally invisible
> and I really should be mapping:
> 
> wd1s3 -> hdb3
> wd1s4 -> hdb5
> wd1s5 -> hdb6
> (etc.)
> 
> The other question I have is why disklabel would care about what is on wd1?
> 
> (BTW. I'm far enough along that I'm now running off a successfully
> installed system on wd0s3 - aka hda3.)
> 
> Does this trigger any thoughts as to what else I should look into?
> 
> Thanks again.
>