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Add two entries about ccd.

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Satoshi Asami 1996-10-09 20:52:35 +00:00
parent f2671637c7
commit a997ffd51a
Notes: svn2git 2020-12-08 03:00:23 +00:00 
svn path=/head/; revision=596
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FAQ/FAQ.sgml
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@ -1,11 +1,11 @@
<!DOCTYPE linuxdoc PUBLIC "-//FreeBSD//DTD linuxdoc//EN">
<!-- $Id: FAQ.sgml,v 1.11 1996-10-06 20:33:37 jfieber Exp $ -->
<!-- $Id: FAQ.sgml,v 1.12 1996-10-09 20:52:35 asami Exp $ -->
<article>
<title>Frequently Asked Questions for FreeBSD 2.X
<author>The FreeBSD FAQ Team, <tt/FAQ@FreeBSD.ORG/
<date>$Date: 1996-10-06 20:33:37 $
<date>$Date: 1996-10-09 20:52:35 $
<abstract>
This is the FAQ for FreeBSD systems version 2.X All entries are
assumed to be relevant to FreeBSD 2.0.5+, unless otherwise noted.
@ -2645,6 +2645,49 @@ disk fd1 at fdc0 drive 1
</verb>
</enum>
<sect1>
<heading>What's inappropriate about my ccd?</heading>
<p>
The symptom of this is:
<verb>
host# ccdconfig -C
ccdconfig: ioctl (CCDIOCSET): /dev/ccd0c: Inappropriate file type or format
host#
</verb>
<p>
This usually happens when you are trying to concatenate the
`c' partitions, which default to type `unused'. The ccd
driver requires the underlying partition type to be
FS_BSDFFS. Edit the disklabel of the disks you are trying
to concatenate and change the types of partitions to
`4.2BSD'.
<sect1>
<heading>Why can't I edit the disklabel on my ccd?</heading>
<p>
The symptom of this is:
<verb>
host# disklabel ccd0
(it prints something sensible here, so let's try to edit it)
host# disklabel -e ccd0
(edit, save, quit)
disklabel: ioctl DIOCWDINFO: No disk label on disk;
use "disklabel -r" to install initial label
host#
</verb>
<p>
This is because the disklabel returned by ccd is actually a
`fake' one that is not really on the disk. You can solve
this problem by writing it back explicitly, as in:
<verb>
host# disklabel ccd0 > /tmp/disklabel.tmp
host# disklabel -Rr ccd0 /tmp/disklabel.tmp
host# disklabel -e ccd0
(this will work now)
</verb>
<sect>
<heading>Networking</heading>