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doc: Update description of the chroot contents. 

* doc/guix.texi (Build Environment Setup): Adjust description of /dev
  and /proc; remove footnote about /dev/shm, now obsolete.
This commit is contained in:
Ludovic Courtès 2014-04-03 23:43:14 +02:00
parent 4b00f3434e
commit 4743a4da9b
1 changed files with 8 additions and 6 deletions
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doc/guix.texi
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@ -245,12 +245,14 @@ environment contains nothing but:
@c Keep this list in sync with libstore/build.cc! -----------------------
@itemize
@item
the @code{/dev} and @code{/proc} directories@footnote{On some systems
@code{/dev/shm}, which supports shared memory, is a symlink to another
directory such as @code{/run/shm}, that is @emph{not} is the chroot.
When that is the case, shared memory support is unavailable in the
chroot environment. The workaround is to make sure that @file{/dev/shm}
is directly a @code{tmpfs} mount point.};
a minimal @code{/dev} directory, created mostly independently from the
host @code{/dev}@footnote{``Mostly'', because while the set of files
that appear in the chroot's @code{/dev} is fixed, most of these files
can only be created if the host has them.};
@item
the @code{/proc} directory; it only shows the container's processes
since a separate PID name space is used;
@item
@file{/etc/passwd} with an entry for the current user and an entry for