X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=README;h=7fd5c0e5bf4176bb7e1df92a665c742cdb62b6aa;hp=cc439534fd6b27ae080b0239c767346481e09720;hb=374c356979ba7222fa7e09005824fe6996b0e91e;hpb=a65c89bbb056b18e069008a4f477aed7af0b316b diff --git a/README b/README index cc439534f..7fd5c0e5b 100644 --- a/README +++ b/README @@ -30,13 +30,18 @@ AUTHOR: LICENSE: LGPLv2.1+ for all code - - except sd-daemon.[ch] and sd-readahead.[ch] which are MIT - - except src/shared/MurmurHash3.c which is Public Domain + - except sd-readahead.[ch] which is MIT + - except src/shared/MurmurHash2.c which is Public Domain + - except src/shared/siphash24.c which is CC0 Public Domain - except src/journal/lookup3.c which is Public Domain - except src/udev/* which is (currently still) GPLv2, GPLv2+ REQUIREMENTS: Linux kernel >= 3.0 + Linux kernel >= 3.3 for loop device partition support features with nspawn + Linux kernel >= 3.8 for Smack support + + Kernel Config Options: CONFIG_DEVTMPFS CONFIG_CGROUPS (it's OK to disable all controllers) CONFIG_INOTIFY_USER @@ -45,8 +50,8 @@ REQUIREMENTS: CONFIG_EPOLL CONFIG_NET CONFIG_SYSFS - - Linux kernel >= 3.8 for Smack support + CONFIG_PROC_FS + CONFIG_FHANDLE (libudev, mount and bind mount handling) Udev will fail to work with the legacy layout: CONFIG_SYSFS_DEPRECATED=n @@ -61,9 +66,6 @@ REQUIREMENTS: Some udev rules and virtualization detection relies on it: CONFIG_DMIID - Mount and bind mount handling might require it: - CONFIG_FHANDLE - Support for some SCSI devices serial number retrieval, to create additional symlinks in /dev/disk/ and /dev/tape: CONFIG_BLK_DEV_BSG @@ -75,14 +77,12 @@ REQUIREMENTS: CONFIG_TMPFS_XATTR CONFIG_SECCOMP - For systemd-bootchart, a kernel with procfs support and - several proc output options enabled is required: - CONFIG_PROC_FS + For systemd-bootchart, several proc debug interfaces are required: CONFIG_SCHEDSTATS CONFIG_SCHED_DEBUG For UEFI systems: - CONFIG_EFI_VARS + CONFIG_EFIVAR_FS CONFIG_EFI_PARTITION Note that kernel auditing is broken when used with systemd's @@ -91,9 +91,17 @@ REQUIREMENTS: runtime using the kernel command line option "audit=0", or turn it off at kernel compile time using: CONFIG_AUDIT=n + If systemd is compiled with libseccomp support on + architectures which do not use socketcall() and where seccomp + is supported (this effectively means x86-64 and ARM, but + excludes 32bit x86!), then nspawn will now install a + work-around seccomp filter that makes containers boot even + with audit being enabled. This works correctly only on kernels + 3.14 and newer though. TL;DR: turn audit off, still. glibc >= 2.14 libcap + libseccomp >= 1.0.0 (optional) libblkid >= 2.20 (from util-linux) (optional) libkmod >= 15 (optional) PAM >= 1.1.2 (optional) @@ -113,9 +121,11 @@ REQUIREMENTS: During runtime, you need the following additional dependencies: - util-linux >= v2.19 (requires fsck -l, agetty -s) + util-linux >= v2.19 (requires fsck -l, agetty -s), + v2.21 required for tests in test/ dbus >= 1.4.0 (strictly speaking optional, but recommended) - sulogin (from util-linux >= 2.22 or sysvinit-tools, optional but recommended) + sulogin (from util-linux >= 2.22 or sysvinit-tools, optional but recommended, + required for tests in test/) dracut (optional) PolicyKit (optional) @@ -131,8 +141,8 @@ REQUIREMENTS: gperf gtkdocize (optional) python (optional) + python-lxml (optional, but required to build the indices) sphinx (optional) - python-lxml (entirely optional) When systemd-hostnamed is used, it is strongly recommended to install nss-myhostname to ensure that, in a world of @@ -187,6 +197,9 @@ WARNINGS: about this, since this kind of file system setup is not really supported anymore by the basic set of Linux OS components. + systemd requires that the /run mount point exists. systemd also + requires that /var/run is a a symlink → /run. + For more information on this issue consult http://freedesktop.org/wiki/Software/systemd/separate-usr-is-broken