%general-entities; ]> $LastChangedBy$ $Date$ systemd Even though systemd was built in LFS, there are some features provided by the package that some BLFS packages need, but their dependencies didn't fit into LFS. There are two reasons why systemd needs to be rebuilt. Some packages require GUdev library to be present in order to compile while others expect working systemd-logind service in order to work properly. To build the GUdev library, make sure that you have installed first set of required dependencies. In order to get systemd-logind to work properly, make sure that you have installed second set of required dependencies. Unlike other packages in BLFS, there is no set version of systemd in this page's title and no set version specified for download. Version updates to systemd make it possible that the user's system may have a systemd version different from the one in the current LFS book. Therefore, users should use the version of systemd that is currently installed on their system. Package Information Systemd Download (HTTP): Systemd Patch Download (HTTP): Make sure you download the "compat" patch whose version matches the systemd version you are building. If you are unsure which version needs to be downloaded, issue systemctl --version in order to find out. Some of the commands below might need the version information. Issue the following command to store the systemd version number into an environment variable: export SYSTEMD_VERSION=$(systemctl --version | head -n1 | awk '{print $2}') systemd Dependencies Required (GUdev) and Required (Logind) Recommended Runtime Dependency Optional , , , , , , , , cryptsetup, libmicrohttpd, libqrencode, libseccomp, lxml (Python Module), and lz4 In order to build the systemd Python module, lxml package needs to be installed for the corresponding Python version (2 or 3). Note that configure defaults to Python 2. In order to build the module for Python 3, make sure you pass the PYTHON=python3 environment variable to the configure command below. Optional (for rebuilding manual pages) , , and User Notes: First, apply the required patch: patch -Np1 -i ../systemd-${SYSTEMD_VERSION}-compat-1.patch Rebuild systemd by running the following commands: cc_cv_CFLAGS__flto=no \ ./configure --prefix=/usr \ --sysconfdir=/etc \ --localstatedir=/var \ --with-rootprefix= \ --with-rootlibdir=/lib \ --enable-split-usr \ --disable-firstboot \ --disable-ldconfig \ --disable-sysusers \ --docdir=/usr/share/doc/systemd-${SYSTEMD_VERSION} && make For the best results, make sure you run the testsuite from a system that is booted by the same systemd version you are rebuilding. To test the results, issue: make -k check. Installing the package will override all files installed by systemd in LFS. It is critical that nothing uses either systemd or Udev libraries or programs during the installation phrase. Best way to achieve that is to do the installation in the rescue mode. To switch to the rescue mode, issue the following command as the root user from a TTY: systemctl start rescue.target Now, as the root user: make install Move NSS libraries to /lib by running the following command as the root user: mv -v /usr/lib/libnss_{myhostname,mymachines,resolve}.so.2 /lib Remove an unnecessary directory by running the following command as the root user: rm -rfv /usr/lib/rpm Remove a reference to a non-existent group by running the following command as the root user: sed -i "s:0775 root lock:0755 root root:g" /usr/lib/tmpfiles.d/legacy.conf If the systemd PAM module was built, the /etc/pam.d/system-sesion file needs to be modified and a new file needs to be created in order for systemd-logind to work correctly. To accomplish that, run the following commands as the root user: cat >> /etc/pam.d/system-session << "EOF" # Begin Systemd addition session required pam_loginuid.so -session optional pam_systemd.so # End Systemd addition EOF cat > /etc/pam.d/systemd-user << "EOF" # Begin /etc/pam.d/systemd-user account required pam_access.so account include system-account session required pam_env.so session required pam_limits.so session include system-session auth required pam_deny.so password required pam_deny.so # End /etc/pam.d/systemd-user EOF At this point it would be a nice idea to reboot to test if the reinstallation was sucessful. A list of the installed files, along with their short descriptions can be found at . Below are listed newly installed libraries and directories along with short descriptions. Installed Programs Installed Libraries Installed Directories None libgudev-1.0.so and pam_systemd.so (in /lib/security) /usr/include/gudev-1.0 and /usr/share/gtk-doc/html/gudev Short Descriptions libgudev-1.0.so is a GObject-based wrapper library for libudev. libgudev-1.0.so pam_systemd.so is a PAM module used to register user sessions with the systemd login manager, systemd-logind. pam_systemd.so