tags 763197 + patch
thanks
With the help of the old udev checks I came up with this which
properly detects my systemd and kernel incompatibilities.
It is not detecting the UEFI things though.
How about applying it?
-Mikko
diff -rup systemd-215-orig/debian/systemd.preinst systemd-215/debian/systemd.preinst
--- systemd-215-orig/debian/systemd.preinst 2014-09-27 17:50:52.000000000 +0200
+++ systemd-215/debian/systemd.preinst 2014-10-10 07:55:40.081232794 +0200
@@ -2,6 +2,88 @@
set -e
+chrooted() {
+ if [ "$(stat -c %d/%i /)" = "$(stat -Lc %d/%i /proc/1/root 2>/dev/null)" ];
+ then
+ return 1
+ fi
+ return 0
+}
+
+check_kernel_features() {
+ local abort_install=0
+
+ local needed_fs='devtmpfs sysfs proc autofs cgroup'
+ # efivarfs is needed only on UEFI systems
+ local missing_fs=0
+ if [ -e /proc/filesystems ]; then
+ for fs in $needed_fs; do
+ if ! grep -q "$fs" /proc/filesystems; then
+ missing_fs=1
+ abort_install=1
+ break
+ fi
+ done
+ fi
+
+ local needed_symbols='inotify_init signalfd accept4 open_by_handle_at timerfd_create epoll_create'
+ local missing_symbol=0
+ if [ -e /proc/kallsyms ]; then
+ for symbol in $needed_symbols; do
+ if ! egrep -q "^[a-fA-F0-9]+ T \.?sys_${symbol}$" /proc/kallsyms; then
+ missing_symbol=1
+ abort_install=1
+ break
+ fi
+ done
+ fi
+
+ if [ "$missing_symbol" -eq 1 ]; then
+ cat <<END
+systemd requires support for the following features in the running kernel
+
+ CONFIG_INOTIFY_USER
+ CONFIG_SIGNALFD
+ CONFIG_TIMERFD
+ CONFIG_EPOLL
+ CONFIG_NET
+ CONFIG_FHANDLE
+
+END
+ fi
+
+ if [ "$missing_fs" -eq 1 ]; then
+ cat <<END
+systemd requires support for the following filesystems in the running kernel:
+
+ CONFIG_DEVTMPFS
+ CONFIG_CGROUPS
+ CONFIG_SYSFS
+ CONFIG_PROC_FS
+ CONFIG_AUTOFS4_FS
+
+On UEFI systems also:
+
+ CONFIG_EFIVAR_FS
+ CONFIG_EFI_PARTITION
+
+END
+ fi
+
+ if [ ! "$abort_install" -eq 0 ]; then
+ exit 1
+ fi
+ return 0
+}
+
+if [ "$1" = "install" ] || [ "$1" = "upgrade" ]; then
+ if chrooted; then
+ echo 'Running in a chroot, skipping the kernel feature checks!'
+ else
+ check_kernel_features
+ fi
+fi
+
if [ "$1" = "install" ] || [ "$1" = "upgrade" ] && [ -n "$2" ] && dpkg --compare-versions "$2" lt "44-3"; then
rm -f /lib/lsb/init-functions
dpkg-divert --remove --package systemd --rename \
