[CALUG] Difference between telinit and init

[James Ewing Cottrell 3rd]

This is what I'm saying!

JIM

Eric K. Dickinson wrote:
> Is there a difference?
> 
>   1 lrwxrwxrwx  1 root root      4 2006-01-24 00:58 telinit -> init
> 
> eric
> 
> Gregory Haase wrote:
> 
>>init -t appears to work, although that would be an "undocumented
>>feature" as far as the man page is concerned.
>>
>>I don't understand why your second answer is "better yet" - It looks
>>like a CLI hack for solving a problem that already has a viable solution.
>>
>>The real true difference between init and telinit is that init always
>>carries a PID of 1 whereas telinit will acquire a separate PID as any
>>other process in the system. Although I have no idea why this would
>>actually matter in the grand scheme of things.
>>
>>-G
>>
>>James Ewing Cottrell 3rd wrote:
>>
>>>And what does "init -t 300 3" do? Better yet, what does "(sleep 300;
>>>exec init 3)&" do?
>>>
>>>JIM
>>>
>>>Gregory Haase wrote:
>>>
>>>>If you look at the man page for init or telinit (actually the same page
>>>>on my machine), you will see that other than including a runlevel after
>>>>the command, the two have different switches - specifically, telinit
>>>>includes the -t switch which allows you to add a time component to the
>>>>command.
>>>>
>>>>Running init 3 will instantly cause the init process change the runlevel
>>>>
>>>>Running telinit -t 300 3 will cause the init process to change the
>>>>runlevel in 5 minutes.
>>>>
>>>>-Greg
>>>>
>>>>James Ewing Cottrell 3rd wrote:
>>>>
>>>>
>>>>>Which brings up the question: Why TF does "telinit" exist in the
>>>>>first place? What's wrong with simply typing "init 1"? Nothing!
>>>>>
>>>>>JIM
>>>>>
>>>>>Gary wrote:
>>>>>
>>>>>
>>>>>>Hi,
>>>>>>
>>>>>>I usually accomplish this with the "telinit" command:  "telinit 1"
>>>>>>
>>>>>>This drops you into runlevel 1, which is single-user mode. 
>>>>>>Networking isn't typically enabled in runlevel 1, but you
>>>>>>probably don't need it if the NVIDIA driver resides on the
>>>>>>local machine.  Depending on the Linux distro, you might
>>>>>>also try "telinit 3", which is multi-user command console
>>>>>>mode in RedHat and Fedora Core distros.
>>>>>>Good Luck,
>>>>>> Gary.
>>>>>>
>>>>>>Edward D. Browne wrote:
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>>Hmmm, guess I haven't needed to do this since quite a few
>>>>>>>releases ago.  I'm trying to upgrade my graphics driver
>>>>>>>(to NVIDIA-Linux-x86-1.0-8762-pkg1.run), which means
>>>>>>>I have to get out of X.  As I recall, there was always a menu
>>>>>>>option at the login screen to log in without X running, but now
>>>>>>>with RH AS3, I see no such option.  Killing X, and everything
>>>>>>>that looks connected to X, only results in it automatically
>>>>>>>restarting.   init 3 or 4 or 5 or 6 (it doesn't seem to matter)
>>>>>>>just causes the machine to reboot all the way back to run
>>>>>>>level 6.  What obvious solution am I missing?
>>>>>>>
>>>>>>>TIA - Ed
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>>>>>>>
>>>>>>>
>>>>>>
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>>>>>
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>>
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> 
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