%general-entities; ]> udev &systemd-version;

&systemd-url;

Udev Udev is part of the systemd-&systemd-version; package. Use the systemd-&systemd-version;.tar.xz file as the source tarball. Remove two unneeded groups, render and sgx, from the default udev rules: sed -i -e 's/GROUP="render"/GROUP="video"/' \ -e 's/GROUP="sgx", //' rules.d/50-udev-default.rules.in Remove one udev rule requiring a full Systemd installation: sed '/systemd-sysctl/s/^/#/' -i rules.d/99-systemd.rules.in Prepare Udev for compilation: mkdir -p build cd build meson setup \ --prefix=/usr \ --buildtype=release \ -Dmode=release \ -Ddev-kvm-mode=0660 \ -Dlink-udev-shared=false \ -Dlogind=false \ -Dvconsole=false \ .. --buildtype=release This switch overrides the default buildtype (debug), which produces unoptimized binaries. -Dmode=release Disable some features considered experimental by upstream. -Ddev-kvm-mode=0660 The default udev rule would allow all users to access /dev/kvm. The editors consider it dangerous. This option overrides it. -Dlink-udev-shared=false This option prevents udev from linking to the internal systemd shared library, libsystemd-shared. This library is designed to be shared by many Systemd components and it's too overkill for a udev-only installation. -Dlogind=false -Dvconsole=false These options prevent the generation of several udev rule files belonging to the other Systemd components that we won't install. Only build the components needed for udev: ninja udevadm systemd-hwdb \ $(ninja -n | grep -Eo '(src/(lib)?udev|rules.d|hwdb.d)/[^ ]*') \ $(realpath libudev.so --relative-to .) Install the package: install -vm755 -d {/usr/lib,/etc}/udev/{hwdb,rules}.d install -vm755 -d /usr/{lib,share}/pkgconfig install -vm755 udevadm /usr/bin/ install -vm755 systemd-hwdb /usr/bin/udev-hwdb ln -svfn ../bin/udevadm /usr/sbin/udevd cp -av libudev.so{,*[0-9]} /usr/lib/ install -vm644 ../src/libudev/libudev.h /usr/include/ install -vm644 src/libudev/*.pc /usr/lib/pkgconfig/ install -vm644 src/udev/*.pc /usr/share/pkgconfig/ install -vm644 ../src/udev/udev.conf /etc/udev/ install -vm644 rules.d/* ../rules.d/README /usr/lib/udev/rules.d/ install -vm644 $(echo ../rules.d/*.rules | \ sed 's/70-power-switch.rules//') /usr/lib/udev/rules.d/ install -vm644 hwdb.d/* ../hwdb.d/{*.hwdb,README} /usr/lib/udev/hwdb.d/ install -vm755 $(find src/udev -type f \ -not -name '*.*') /usr/lib/udev Install some custom rules and support files useful in an LFS environment: tar -xvf ../../&udev-lfs-version;.tar.xz make -f &udev-lfs-version;/Makefile.lfs install Install the man pages: tar -xf ../../systemd-man-pages-&systemd-man-version;.tar.xz \ --no-same-owner --strip-components=1 \ -C /usr/share/man --wildcards '*/udev*' '*/libudev*' \ '*/systemd-'{hwdb,udevd.service}.8 sed 's/systemd\(\\\?-\)/udev\1/' /usr/share/man/man8/systemd-hwdb.8 \ > /usr/share/man/man8/udev-hwdb.8 sed 's|lib.*udevd|sbin/udevd|' \ /usr/share/man/man8/systemd-udevd.service.8 \ > /usr/share/man/man8/udevd.8 rm /usr/share/man/man8/systemd-*.8 Udev configuring /etc/udev/hwdb.bin Information about hardware devices is maintained in the /etc/udev/hwdb.d and /usr/lib/udev/hwdb.d directories. Udev needs that information to be compiled into a binary database /etc/udev/hwdb.bin. Create the initial database: udev-hwdb update This command needs to be run each time the hardware information is updated. Installed programs Installed libraries Installed directories udevadm, udevd (symlink to udevadm), and udev-hwdb libudev.so /etc/udev and /usr/lib/udev Short Descriptions udevadm Generic udev administration tool: controls the udevd daemon, provides info from the Udev database, monitors uevents, waits for uevents to finish, tests Udev configuration, and triggers uevents for a given device udevadm udevd A daemon that listens for uevents on the netlink socket, creates devices and runs the configured external programs in response to these uevents udevd udev-hwdb Updates or queries the hardware database. udev-hwdb libudev A library interface to udev device information libudev /etc/udev Contains Udev configuration files, device permissions, and rules for device naming /etc/udev