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# Copyright 1999-2007 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# store persistent-rules that got created while booting
# when / was still read-only
store_persistent_rules() {
local file dest
for file in /dev/.udev/tmp-rules--*; do
dest=${file##*tmp-rules--}
[ "$dest" = '*' ] && break
type=${dest##70-persistent-}
type=${type%%.rules}
einfo "Saving udev persistent ${type} rules to /etc/udev/rules.d"
cat "$file" >> /etc/udev/rules.d/"$dest"
rm -f "$file"
done
}
create_device_tarball() {
if [ -e /dev/.devfsd ] || [ ! -e /dev/.udev ] || [ ! -z "${CDBOOT}" ] || \
[ "${RC_DEVICE_TARBALL}" != "yes" ] || \
! touch /lib/udev/state/devices.tar.bz2 2>/dev/null
then
return 0
fi
ebegin "Saving device nodes"
# Handle our temp files
save_tmp_base=/tmp/udev.savedevices."$$"
devices_udev="${save_tmp_base}"/devices.udev
devices_real="${save_tmp_base}"/devices.real
devices_totar="${save_tmp_base}"/devices.totar
device_tarball="${save_tmp_base}"/devices
rm -rf "${save_tmp_base}"
mkdir "${save_tmp_base}"
touch "${devices_udev}" "${devices_real}" \
"${devices_totar}" "${device_tarball}"
if [ -f ${devices_udev} ] && [ -f ${devices_real} ] && \
[ -f ${devices_totar} ] && [ -f ${device_tarball} ] ; then
cd /dev
# Find all devices
find . -xdev -type b -or -type c -or -type l | cut -d/ -f2- > \
"${devices_real}"
# Figure out what udev created
udevinfo=$(udevinfo --export-db)
# This basically strips 'S:' and 'N:' from the db output, and then
# print all the nodes/symlinks udev created ...
echo "${udevinfo}" | gawk '
/^(N|S):.+/ {
sub(/^(N|S):/, "")
split($0, nodes)
for (x in nodes)
print nodes[x]
}' > "${devices_udev}"
# These ones we also do not want in there
for x in MAKEDEV core fd initctl pts shm stderr stdin stdout; do
echo "${x}" >> "${devices_udev}"
done
if [ -d /lib/udev/devices ]; then
cd /lib/udev/devices
find . -xdev -type b -or -type c -or -type l | cut -d/ -f2- >> "${devices_udev}"
fi
cd /dev
fgrep -x -v -f "${devices_udev}" < "${devices_real}" | \
grep -v ^\\.udev > "${devices_totar}"
# Now only tarball those not created by udev if we have any
if [ -s ${devices_totar} ]; then
# we dont want to descend into mounted filesystems (e.g. devpts)
# looking up username may involve NIS/network, and net may be down
tar --one-file-system --numeric-owner -jcpf "${device_tarball}" -T "${devices_totar}"
mv -f "${device_tarball}" /lib/udev/state/devices.tar.bz2
else
rm -f /lib/udev/state/devices.tar.bz2
fi
eend 0
else
eend 1 "Could not create temporary files!"
fi
rm -rf "${save_tmp_base}"
}
main() {
store_persistent_rules
create_device_tarball
}
main
# vim:ts=4
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