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Full Discussion: Linux Containers - /proc mounting and other queries
Top Forums UNIX for Beginners Questions & Answers Linux Containers - /proc mounting and other queries Post 303026750 by MadeInGermany on Sunday 2nd of December 2018 05:01:52 PM
Old 12-02-2018
ps looks into /proc, so having a namespace in /proc is the correct way.
(Having a namespace in ps would be inconsistent.)

Each mount of /proc is a new interface to the kernel. There is no "fowarding" of an existing mount. The only mount forwarding is the bind mount (it should work with all file system types including /proc).

/proc works a bit like /dev where each file is a driver.
The kernel is not writing out but mapping out. If you access a file it is actually written out.
 

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LEARN ABOUT DEBIAN

local-filesystems

local-filesystems(7)					 Miscellaneous Information Manual				      local-filesystems(7)

NAME

       local-filesystems - event signalling that local filesystems have been mounted

SYNOPSIS

       local-filesystems [ENV]...

DESCRIPTION

       The  local-filesystems  event  is generated by the mountall(8) daemon after it has mounted all local filesystems listed in fstab(5).  moun-
       tall(8) emits this event as an informational signal, services and tasks started or stopped by this event will do so in parallel with  other
       activity.

       This event is typically used by services that must be started in order for remote filesystems, if any, to be activated.	Remember that some
       users may not consider it wrong to place /usr on a remote filesystem.  For most normal services the filesystem(7) event is sufficient.

       This event will never occur before the virtual-filesystems(7) event.

EXAMPLE

       A service that wishes to be running once local filesystems are mounted might use:

	      start on local-filesystems

SEE ALSO

       mounting(7) mounted(7) virtual-filesystems(7) remote-filesystems(7) all-swaps(7) filesystem(7)

mountall							    2009-12-21						      local-filesystems(7)
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