157 lines
4.9 KiB
Bash
Executable File
157 lines
4.9 KiB
Bash
Executable File
#!/bin/sh -e
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chrooted() {
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if [ "$(stat -c %d/%i /)" = "$(stat -Lc %d/%i /proc/1/root 2>/dev/null)" ];
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then
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# the devicenumber/inode pair of / is the same as that of /sbin/init's
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# root, so we're *not* in a chroot and hence return false.
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return 1
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fi
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echo "A chroot environment has been detected, udev not started."
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return 0
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}
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in_debootstrap() {
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# debootstrap --second-stage may be run in an emulator instead of a chroot,
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# we need to check for this special case because start-stop-daemon would
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# not be available. (#520742)
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if [ -d /debootstrap/ ]; then
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echo "Being installed by debootstrap, udev not started."
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return 0
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fi
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return 1
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}
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can_start_udevd() {
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if [ ! -d /sys/class/ ]; then
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echo "udev requires a mounted sysfs, not started."
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return 1
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fi
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return 0
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}
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enable_udev() {
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can_start_udevd || return 0
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invoke-rc.d udev start
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}
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update_initramfs() {
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[ -x /usr/sbin/update-initramfs -a -e /etc/initramfs-tools/initramfs.conf ] \
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|| return 0
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update-initramfs -u
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}
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upgrade_fixes() {
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if dpkg --compare-versions "$2" lt "226-1"; then
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update-rc.d udev-finish remove
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fi
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# we enabled net.ifnames in 220-7 by default; don't change iface names in
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# virtualized envs (where 75-persistent-net-generator.rules didn't work)
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if dpkg --compare-versions "$2" lt-nl "220-7~" &&
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[ ! -e /etc/udev/rules.d/70-persistent-net.rules ] &&
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[ ! -e /etc/udev/rules.d/80-net-setup-link.rules ] &&
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[ ! -e /etc/systemd/network/99-default.link ] &&
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[ ! -L /etc/systemd/network/99-default.link ] &&
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! grep -q net.ifnames /proc/cmdline && ! chrooted; then
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mkdir -p /etc/systemd/network
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cat <<EOF > /etc/systemd/network/99-default.link
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# This machine is most likely a virtualized guest, where the old persistent
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# network interface mechanism (75-persistent-net-generator.rules) did not work.
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# This file disables /lib/systemd/network/99-default.link to avoid
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# changing network interface names on upgrade. Please read
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# /usr/share/doc/udev/README.Debian.gz about how to migrate to the currently
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# supported mechanism.
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EOF
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fi
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# 226 introduced predictable interface names for virtio
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# (https://github.com/systemd/systemd/pull/1119); disable for upgrades
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if dpkg --compare-versions "$2" lt-nl "226-2~" &&
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[ ! -e /etc/systemd/network/50-virtio-kernel-names.link ] &&
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ls -d /sys/bus/virtio/drivers/virtio_net/virt* >/dev/null 2>&1; then
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echo "virtio network devices detected, disabling predictable interface names in /etc/systemd/network/50-virtio-kernel-names.link"
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mkdir -p /etc/systemd/network/
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cat <<EOF > /etc/systemd/network/50-virtio-kernel-names.link
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# udev 226 introduced predictable interface names for virtio;
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# disable this for upgrades. You can remove this file if you update your
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# network configuration to move to the ens* names instead.
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# See /usr/share/doc/udev/README.Debian.gz for details about predictable
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# network interface names.
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[Match]
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Driver=virtio_net
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[Link]
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NamePolicy=onboard kernel
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EOF
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fi
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# new Default-Stop (see #791944)
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if dpkg --compare-versions "$2" lt-nl "239-8"; then
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update-rc.d -f udev remove
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fi
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}
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update_hwdb() {
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systemd-hwdb --usr update || true
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}
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case "$1" in
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configure)
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# update/create hwdb before we (re)start udev
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update_hwdb
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# Add new system group used by udev rules
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addgroup --quiet --system input
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# Make /dev/kvm accessible to kvm group
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addgroup --quiet --system kvm
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# Make /dev/dri/renderD* accessible to render group
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addgroup --quiet --system render
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if [ -z "$2" ]; then # first install
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if ! chrooted && ! in_debootstrap; then
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enable_udev
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fi
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else # upgrades
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upgrade_fixes "$@"
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if ! chrooted; then
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if can_start_udevd; then
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if [ -d /run/systemd/system ] ; then
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systemctl daemon-reload || true
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fi
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invoke-rc.d udev restart
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fi
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fi
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fi
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update_initramfs
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;;
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triggered)
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update_hwdb
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exit 0
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;;
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esac
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# Automatically added by dh_installdeb/12.1.1
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dpkg-maintscript-helper rm_conffile /etc/init.d/udev-finish 226-1\~ -- "$@"
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dpkg-maintscript-helper rm_conffile /etc/init/udev-finish.conf 226-1\~ -- "$@"
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dpkg-maintscript-helper rm_conffile /etc/init/udev-fallback-graphics.conf 226-1\~ -- "$@"
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dpkg-maintscript-helper symlink_to_dir /usr/share/doc/udev libudev1 221-2\~ -- "$@"
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dpkg-maintscript-helper rm_conffile /etc/modprobe.d/fbdev-blacklist.conf 229-6\~ -- "$@"
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dpkg-maintscript-helper rm_conffile /etc/init/udev.conf 233-1\~ -- "$@"
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dpkg-maintscript-helper rm_conffile /etc/init/udevmonitor.conf 233-1\~ -- "$@"
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dpkg-maintscript-helper rm_conffile /etc/init/udevtrigger.conf 233-1\~ -- "$@"
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# End automatically added section
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# Automatically added by dh_installinit/12.1.1
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if [ "$1" = "configure" ] || [ "$1" = "abort-upgrade" ] || [ "$1" = "abort-deconfigure" ] || [ "$1" = "abort-remove" ] ; then
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if [ -x "/etc/init.d/udev" ]; then
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update-rc.d udev defaults >/dev/null || exit 1
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fi
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fi
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# End automatically added section
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