[HEADS-UP] systemd is now the default init system in rawhide

[Bryn M. Reeves]

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On 07/24/2010 09:39 PM, Matt McCutchen wrote:
> On Sat, 2010-07-24 at 16:36 -0400, Matthew Miller wrote:
>> On Sat, Jul 24, 2010 at 12:14:33AM -0400, Casey Dahlin wrote:
>>>> Why is the systemd executable in /bin instead of /sbin?
>>> Without looking too closely I believe systemd eventually seeks to replace
>>> things like gnome-session daemon. It has session management in mind as
>>> well as system.
>>
>> Still belongs in /sbin, unless it's meant to actually be executed directly
>> by end-users.
> 
> No.  If that were the criterion, update-mime-database would belong
> in /sbin .
> 

The FHS puts it like this:

(a) "/bin contains commands that may be used by both the system
administrator and by users, but which are required when no other
filesystems are mounted (e.g. in single user mode). It may also contain
commands which are used indirectly by scripts."

(b) "/sbin contains binaries essential for booting, restoring,
recovering, and/or repairing the system in addition to the binaries in
/bin."

So if the intent is that systemd will eventually be invoked (indirectly
by some script/daemon) by users this seems justified by (a). On the
other hand the page has this to say on "init":

"The following files, or symbolic links to files, must be in /sbin if
the corresponding subsystem is installed: ...
init"

It's arguable though whether this refers to SysV's init or is intended
to be more general.

http://www.pathname.com/fhs/pub/fhs-2.3.html#BINESSENTIALUSERCOMMANDBINARIES
http://www.pathname.com/fhs/pub/fhs-2.3.html#SBINSYSTEMBINARIES

Regards,
Bryn.
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