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Re: Strange message during boot

On 2018-01-11 at 10:35, Greg Wooledge wrote:

> On Thu, Jan 11, 2018 at 10:27:33AM -0500, The Wanderer wrote:
>> On 2018-01-11 at 10:23, Brian wrote:

>>> Guaranteed: 'cat /proc/1/comm'.
>> On my system:
>> $ dlocate /sbin/init
>> sysvinit-core: /sbin/init
>> $ cat /proc/1/comm
>> init
>> So the former command produces recognizably useful information, whereas
>> the latter does not.
>> I can't be sure what the latter command would output on a different
>> system, not having tested it - but since AFAIK the standard practice is
>> to launch the init system via /sbin/init (symlinked to something else if
>> necessary) regardless, I would expect the command to be 'init' in all
>> cases.
> wooledg:~$ ls -l /sbin/init
> lrwxrwxrwx 1 root root 20 Jul  5  2017 /sbin/init -> /lib/systemd/systemd
> wooledg:~$ cat /proc/1/comm
> systemd

So it's smart enough to bypass the name of the symlink when populating
this node? I'm a little bit surprised, especially given the number of
programs which intentionally behave differently depending on which name
they were invoked with, but that could be useful in some circumstances.

> P.S. "ls -l /sbin/init" is the command we usually give to people in
> #debian when they ask similar questions.

Right. I meant to bring that up at some point in the thread, but it
slipped my mind during editing passes on what I'd already written.

   The Wanderer

The reasonable man adapts himself to the world; the unreasonable one
persists in trying to adapt the world to himself. Therefore all
progress depends on the unreasonable man.         -- George Bernard Shaw

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