Date: Tue, 18 Feb 2003 12:13:05 -0800 From: Darren Pilgrim <dmp@pantherdragon.org> To: phk@phk.freebsd.dk Cc: freebsd-current@FreeBSD.ORG Subject: Re: New ad*s* devices not automatically appearing in devfs Message-ID: <3E5293D1.3050107@pantherdragon.org> In-Reply-To: <58130.1045568607@critter.freebsd.dk> References: <58130.1045568607@critter.freebsd.dk>
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phk@phk.freebsd.dk wrote:
> In message <3E521BE1.4040501@pantherdragon.org>, Darren Pilgrim writes:
>
>>When I add a new slice or partition to a disk, the device files don't
>>automatically appear in /dev. If I reboot, it shows up, but having to
>>reboot twice just to add a filesystem to a running disk is absurd. How
>>do I make /dev automatically add these devices upon creation? Failing
>>that, how do I force the system to notice the new device(s) and add them
>>to /dev?
>
>
> Which exact commands do you use to create them ?
I used sysinstall, Configure->Fdisk to (in order) delete s3, create a
5120m s2, then Write the changes to disk. After exiting sysinstall:
# fdisk ad4
******* Working on device /dev/ad4 *******
parameters extracted from in-core disklabel are:
cylinders=39714 heads=16 sectors/track=63 (1008 blks/cyl)
Figures below won't work with BIOS for partitions not in cyl 1
parameters to be used for BIOS calculations are:
cylinders=39714 heads=16 sectors/track=63 (1008 blks/cyl)
Media sector size is 512
Warning: BIOS sector numbering starts with sector 1
Information from DOS bootblock is:
The data for partition 1 is:
sysid 165 (0xa5),(FreeBSD/NetBSD/386BSD)
start 63, size 10485153 (5119 Meg), flag 80 (active)
beg: cyl 0/ head 1/ sector 1;
end: cyl 1023/ head 15/ sector 63
The data for partition 2 is:
sysid 165 (0xa5),(FreeBSD/NetBSD/386BSD)
start 10485216, size 10485216 (5119 Meg), flag 80 (active)
beg: cyl 1023/ head 255/ sector 63;
end: cyl 1023/ head 15/ sector 63
The data for partition 3 is:
<UNUSED>
The data for partition 4 is:
sysid 165 (0xa5),(FreeBSD/NetBSD/386BSD)
start 30967776, size 9063936 (4425 Meg), flag 80 (active)
beg: cyl 1023/ head 255/ sector 63;
end: cyl 1023/ head 15/ sector 63
# disklabel ad2s2
disklabel: /dev/ad2s2: No such file or directory
# disklabel -r ad2s2
disklabel: /dev/ad2s2: No such file or directory
# disklabel -w ad4s2 auto
disklabel: /dev/ad4s2: No such file or directory
Going back into sysinstall, the fdisk screen shows the old slice table,
and the label screen shows s1, s3, and s4, but no s2.
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