diff options
Diffstat (limited to 'doc/s6-linux-init.html')
| -rw-r--r-- | doc/s6-linux-init.html | 16 |
1 files changed, 15 insertions, 1 deletions
diff --git a/doc/s6-linux-init.html b/doc/s6-linux-init.html index 184877a..21d97bf 100644 --- a/doc/s6-linux-init.html +++ b/doc/s6-linux-init.html @@ -27,7 +27,7 @@ and execs into <a href="//skarnet.org/software/s6/s6-svscan.html">s6-svscan</a>. <h2> Interface </h2> <pre> - s6-linux-init [ -c <em>basedir</em> ] [ -p <em>initial_path</em> ] [ -s <em>env_store</em> ] [ -m <em>umask</em> ] [ -d <em>slashdev</em> ] [ -D <em>initdefault</em> ] [ -n | -N ] [ <em>args...</em> ] + s6-linux-init [ -c <em>basedir</em> ] [ -p <em>initial_path</em> ] [ -s <em>env_store</em> ] [ -m <em>umask</em> ] [ -d <em>slashdev</em> ] [ -D <em>initdefault</em> ] [ -n | -N ] [ -C ] [ -B ] [ <em>args...</em> ] </pre> <ul> @@ -67,6 +67,19 @@ Default is <tt>default</tt>. </li> <li> <tt>-n</tt> : instead of unmounting <tt>/run</tt> and mounting a tmpfs on it, just remount <tt>/run</tt>. </li> <li> <tt>-N</tt> : do not touch <tt>/run</tt> at all. </li> + <li> <tt>-C</tt> : run in a container. This option modifies a few +of the operations described below, to accommodate running in a container +instead of on real hardware. For instance: it does not scan the command +line for a specific runlevel, it does not trap ctrl-alt-del, and before +anything else it waits for its descriptor 3, if present, to close. +(Docker uses this fd 3 mechanism as synchronization between the Docker +daemon and the container's <tt>init</tt>.) </li> + <li> <tt>-B</tt> : do not run the catch-all logger. This option +removes the catch-all-logger-related operations from the list below; +<tt>s6-linux-init</tt> will not redirect output descriptors, and will +use a different synchronization mechanism to ensure <tt>rc.init</tt> +only runs when <a href="//skarnet.org/software/s6/s6-svscan.html">s6-svscan</a> +is ready. </li> </ul> <h2> Early preparation </h2> @@ -107,6 +120,7 @@ it uses <em>initdefault</em>. </li> <li> The child blocks until the catch-all logger runs. </li> </ul> </li> <li> It also makes the catch-all logger's fifo its stderr. </li> + <li> It traps the ctrl-alt-del keyboard combination. </li> <li> It execs into <a href="//skarnet.org/software/s6/s6-svscan.html">s6-svscan</a> with <tt>/run/service</tt> as its scandir (or <em>tmpfsdir</em>/service). </li> <ul> |