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Re: empty /proc directory

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On Sunday 15 February 2015 05:10, William Unruh conveyed the following 
to comp.os.linux.misc...

> On 2015-02-14, Pascal Hambourg <boite-a-spam@plouf.fr.eu.org> wrote:
>> porparek@gmail.com a ?crit :
>>> 
>>> /etc/fstab contains:
>>> proc /proc procfs rw,noauto 0 0
> 
> Mine has
> none /proc proc defaults 0 0
> 
> Ie, what is proc that is supposed to be mounted there, and what is
> procfs, as mentioned by Pascal?

The keyword "none" in the device field is a placeholder [*].  One /can/ 
substitute it with "proc" if one wishes to.

Likewise, the keyword "defaults" in the mount options field is also only 
a placeholder [*] because the defaults will still apply for any mount 
with the exception of explicitly listed non-default options.  So for 
instance, if you put "noauto" there, then all the default mount options 
will still apply except for "auto" (if that is a default mount option 
for that particular filesystem and device).  What the default mount 
options are for each device and filesystem can be gleaned from the man 
page.

  $ man mount

"procfs" is a term used by the kernel developers ─ likewise for "sysfs" 
─ but the actual filesystem type as must be used in mount commands and 
in /etc/fstab is, indeed, "proc".


[*] Placeholders are needed because /etc/fstab is a database of records
    comprised of space-separated fields.  Therefore an attempt to leave
    a field blank by omitting a particular keyword would result in an
    incorrect parsing of the file.

-- 
= Aragorn =

         http://www.linuxcounter.net - registrant #223157

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empty /proc directory porparek@gmail.com - 2015-02-14 13:55 -0800
  Re: empty /proc directory Pascal Hambourg <boite-a-spam@plouf.fr.eu.org> - 2015-02-15 00:31 +0100
    Re: empty /proc directory William Unruh <unruh@invalid.ca> - 2015-02-15 04:10 +0000
      Re: empty /proc directory Aragorn <thorongil@telenet.be.invalid> - 2015-02-15 07:34 +0100
    Re: empty /proc directory Baho Utot <baho-utot@columbus.rr.com> - 2015-02-15 07:32 -0500
  Re: empty /proc directory "David W. Hodgins" <dwhodgins@nomail.afraid.org> - 2015-02-15 10:54 -0500

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