Date: Wed, 25 Aug 1999 13:01:14 -0400 (EDT) From: "Mark J. Taylor" <mtaylor@cybernet.com> To: current@freebsd.org Subject: newfs of a ccd failing? Message-ID: <XFMail.990825130114.mtaylor@cybernet.com>
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I've had this problem since at least FreeBSD 3.1-RELEASE (it works in
2.2.7/2.2.8). Same problem in 3.2-RELEASE and -current (as of last night).
Can someone reproduce this error? I can't believe that you can't newfs
a ccd... did I miss something?
spiffy# ./ccdtest.sh
[snip]
newfs /dev/rccd0c
Warning: 16 sector(s) in last cylinder unallocated
/dev/rccd0c: 204784 sectors in 50 cylinders of 1 tracks, 4096 sectors
100.0MB in 4 cyl groups (16 c/g, 32.00MB/g, 6272 i/g)
super-block backups (for fsck -b #) at:
32, 65568, 131104, 196640
newfs: ioctl (WDINFO): No such process
newfs: /dev/rccd0c: can't rewrite disk label
I believe that there is a problem in/near ufs/ufs/ufs_disksubr.c where it
says that it requires an existing disklabel before it writes a new one.
If I change the "#if 1" to an "#if 0" in it, then I don't get this failure.
Here's my test script:
#!/bin/sh
#
# ccdtest.sh
#
# Build a 100 MByte linear ccd from a vnode and newfs it.
#
set -v
set -e
ccdconfig -u ccd0 2> /dev/null || true
vnconfig -u /dev/vn0 2> /dev/null || true
(cd /dev && ./MAKEDEV ccd0 vn0)
if [ ! -f /var/tmp/vn0 ]; then
dd if=/dev/zero of=/var/tmp/vn0 bs=1024 count=102400
fi
vnconfig -e -s labels /dev/vn0 /var/tmp/vn0
disklabel -w -r vn0 auto
echo "Make 'c' a 4.2BSD type filesystem. [press Enter now]"
read dummy
disklabel -e vn0
ccdconfig -c ccd0 0 0 /dev/vn0c
newfs /dev/rccd0c
ccdconfig -u ccd0 || true
vnconfig -u /dev/vn0 || true
-Mark Taylor
NetMAX Developer
mtaylor@cybernet.com
http://www.netmax.com/
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