Date: Sun, 24 Nov 2013 22:13:04 +0100 From: Ilya Bakulin <webmaster@kibab.com> To: "freebsd-embedded@freebsd.org" <freebsd-embedded@freebsd.org> Subject: NanoBSD update scripts are broken when using disk labels Message-ID: <52926BE0.8050003@kibab.com>
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Hi list,
I'm trying to build a NanoBSD image for the small Soekris net5501 board.
Everything went well, including flashing on the CF card and then booting
from the first partition.
However after generating an update image I couln't flash it, update
scripts don't work.
After looking in the /root/updatep2 script I realized that it cannot
work when NANO_LABEL parameter
is set when building the NanoBSD image.
I use NANO_LABEL="FBSDFLT", so after booting the system it has the
following configuration:
# uname -a
FreeBSD fbsd-gs 11.0-CURRENT FreeBSD 11.0-CURRENT #0
af4d383(fbsd-gs)-dirty: Sun Nov 24 19:03:58 CET 2013
root@olymp.kibab.com:/stor0/jails/buildhost.kibab.com/usr/home/kibab/repos/freebsd-git/gs0/obj/i386.i386/stor0/jails/buildhost.kibab.com/usr/home/kibab/repos/freebsd-git/freebsd/sys/GS0
i386
("dirty" is because I haven't committed GS0 kernel configuration file,
the repository is clean)
# cat /etc/nanobsd.conf
NANO_DRIVE=ufs/FBSDFLT
# glabel status
Name Status Components
ufs/FBSDFLTs3 N/A ada0s3
ufs/FBSDFLTs4 N/A ada0s4
ufs/FBSDFLTs1a N/A ada0s1a
ufs/FBSDFLTs2a N/A ada0s2a
# ls -1 /dev/ufs
FBSDFLTs1a
FBSDFLTs2a
FBSDFLTs3
FBSDFLTs4
... and here is the actual problem. The system doesn't create a separate
entry for FBSDFLTs1 and FBSDFLTs2.
The update scripts expect such entries to exist:
# cat /root/updatep2
[... BSD license ...]
. /etc/nanobsd.conf
if mount | grep ${NANO_DRIVE}s2 > /dev/null ; then
echo "You are running partition 2 already"
echo "you probably want to use 'updatep1' instead"
exit 1
fi
# Blow away old system.
dd if=/dev/zero of=/dev/${NANO_DRIVE}s2 bs=1m count=1 > /dev/null 2>&1
# Copy in new system
dd of=/dev/${NANO_DRIVE}s2 obs=64k
----------------------------
So, it tries to `dd` to /dev/ufs/FBSDFLTs1 which doesn't exist.
I haven't found a good way to resolve ufs/FBSDFLTs1a to ada0s1 (actually
ada0s1 is the parent of ufs/FBSDFLTs1a).
Maybe someone has a good solution for this?
--
Ilya
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