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Re: question on XFS+devfsd, and a quick suggestion

To: J Landman <landman@xxxxxxxxxxxx>
Subject: Re: question on XFS+devfsd, and a quick suggestion
From: Eric Sandeen <sandeen@xxxxxxx>
Date: Tue, 08 May 2001 15:13:16 -0500
Cc: linux-xfs@xxxxxxxxxxx
References: <3AF84A21.62CAEBF0@mediaone.net>
Sender: owner-linux-xfs@xxxxxxxxxxx
J Landman wrote:

>   Note:  I did look in /dev/cdroms/ and there was no entry for cdrom0.
> This is where the problem is.  I need to get the cdrom0 noticed in the
> first place in order to make this work.  Clues/hints are requested.

try "modprobe ide-cd"

After that, /dev/cdroms/cdrom* and /dev/cdrom should show up.  In
theory, just looking for /dev/cdrom should also load the module and
create the links, with devfsd set as we have it:

[root@lite /root]# lsmod | grep cdrom <-- no cdrom modules
[root@lite /root]# ls -l /dev/cd*     <-- no cdrom device
ls: /dev/cd*: No such file or directory

... but lookup /dev/cdrom, and the module loads and the link is created:

[root@lite /root]# ls -l /dev/cdrom
lr-xr-xr-x    1 root     root           13 May  8 14:53 /dev/cdrom ->
cdroms/cdrom0
[root@lite /root]# lsmod | grep cdrom
cdrom   31097   0  (autoclean) [ide-cd sr_mod]


>   The suggestion:  The installer gets you to a screen giving you the
> ability to partition using one of three methods.  Two of the three
> methods do not give you the ability to create an XFS partition (I tried
> them).  

You're confusing terminology a little here - you create a "Linux Native"
partition, then you format that partition - either with ext2, xfs,
reiserfs, or whatever.

The installer defaults to XFS on all but the custom installation. 
There's a little bit of warning about this on the method selection
screen - i.e. "Laptop system on XFS"  The idea is that anyone who feels
the need to mix-n-match filesystems also would be choosing the custom
system install.

> It would be nice if you added the ability to create an XFS
> partition (or filesystem) on top of the existing fdisk/disk druid
> system, or somehow specifically indicated which partition to use (both
> say linux native).  

Disk druid only handles partitioning, this is (mostly) unrelated to
filesystem selection.  Both XFS and ext2 _do_ live on the same type of
partition ("Linux Native").

After you go through partitioning, it should ask you about filesystem
formatting, which is when you get to choose between ext2 and XFS for
each partition.

-Eric

-- 
Eric Sandeen      XFS for Linux     http://oss.sgi.com/projects/xfs
sandeen@xxxxxxx   SGI, Inc.

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