X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=README;h=b8d1f42e254676193c6aeacc1385d0d98e22bd3f;hp=889c687bacdbe1f6f88cb90ad28663faa2c7f119;hb=b8beb2781682738f3a59aab993bf2869447a77c9;hpb=37c0e8f35e92190a22b2ac0fbb23bf396121e84a diff --git a/README b/README index 889c687ba..b8d1f42e2 100644 --- a/README +++ b/README @@ -31,13 +31,54 @@ AUTHOR: LICENSE: LGPLv2.1+ for all code - except sd-daemon.[ch] and sd-readahead.[ch] which are MIT - - except src/udev/ which is GPLv2.0+ + - except src/udev/ which is (currently still) GPLv2+ REQUIREMENTS: Linux kernel >= 2.6.39 - with devtmpfs - with cgroups (but it's OK to disable all controllers) - optional but strongly recommended: autofs4, ipv6 + CONFIG_DEVTMPFS + CONFIG_CGROUPS (it's OK to disable all controllers) + CONFIG_INOTIFY_USER + CONFIG_SIGNALFD + CONFIG_TIMERFD + CONFIG_EPOLL + CONFIG_NET + CONFIG_SYSFS + + Linux kernel >= 3.8 for Smack support + + Udev will fail to work with the legacy layout: + CONFIG_SYSFS_DEPRECATED=n + + Legacy hotplug slows down the system and confuses udev: + CONFIG_UEVENT_HELPER_PATH="" + + Userspace firmware loading is deprecated, will go away, and + sometimes causes problems: + CONFIG_FW_LOADER_USER_HELPER=n + + Some udev rules and virtualization detection relies on it: + CONFIG_DMIID + + Mount and bind mount handling might require it: + CONFIG_FHANDLE + + Optional but strongly recommended: + CONFIG_IPV6 + CONFIG_AUTOFS4_FS + CONFIG_TMPFS_POSIX_ACL + CONFIG_TMPFS_XATTR + CONFIG_SECCOMP + + For systemd-bootchart a kernel with procfs support and several + proc output options enabled is required: + CONFIG_PROC_FS + CONFIG_SCHEDSTATS + CONFIG_SCHED_DEBUG + + For UEFI systems: + CONFIG_EFI_VARS + CONFIG_EFI_PARTITION + dbus >= 1.4.0 libcap libblkid >= 2.20 (from util-linux) (optional) @@ -63,13 +104,6 @@ REQUIREMENTS: dracut (optional) PolicyKit (optional) - For systmed-bootchart a kernel with procfs support and several - proc output options enabled is required: - - CONFIG_PROC_FS - CONFIG_SCHEDSTATS - CONFIG_SCHED_DEBUG - When building from git you need the following additional dependencies: docbook-xsl @@ -82,6 +116,7 @@ REQUIREMENTS: gtkdocize (optional) python (optional) 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 @@ -101,14 +136,15 @@ REQUIREMENTS: pass the same DESTDIR to 'make sphinx-html' invocation. USERS AND GROUPS: - Default udev rules use the following standard system group names,\ - which need to be resolvable by getgrnam() at any time, even in the - very early boot stages, where no other databases and network is - available: - tty, dialout, kmem, video, audio, lp, floppy, cdrom, tape, disk + Default udev rules use the following standard system group + names, which need to be resolvable by getgrnam() at any time, + even in the very early boot stages, where no other databases + and network are available: + + tty, dialout, kmem, video, audio, lp, floppy, cdrom, tape, disk During runtime the journal daemon requires the - "system-journal" system group to exist. New journal files will + "systemd-journal" system group to exist. New journal files will be readable by this group (but not writable) which may be used to grant specific users read access. @@ -119,6 +155,11 @@ USERS AND GROUPS: # setfacl -nm g:wheel:rx,d:g:wheel:rx,g:adm:rx,d:g:adm:rx /var/log/journal/ + The journal gateway daemon requires the + "systemd-journal-gateway" system user and group to + exist. During execution this network facing service will drop + privileges and assume this uid/gid for security reasons. + WARNINGS: systemd will warn you during boot if /etc/mtab is not a symlink to /proc/mounts. Please ensure that /etc/mtab is a