Add some wisdom to the jail setup instructions.
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2020-12-20 02:59:44 +00:00
svn path=/head/; revision=87943
@ -52,10 +52,12 @@ Please see the
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man page for further details.
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.Sh EXAMPLES
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.Ss "Setting up a Jail Directory Tree"
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This shows how to setup a jail directory tree:
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This example shows how to setup a jail directory tree
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containing an entire FreeBSD distribution:
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.Bd -literal
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D=/here/is/the/jail
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cd /usr/src
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mkdir -p $D
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make world DESTDIR=$D
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cd etc
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make distribution DESTDIR=$D -DNO_MAKEDEV_RUN
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@ -64,6 +66,14 @@ sh MAKEDEV jail
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cd $D
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ln -sf dev/null kernel
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.Ed
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.Pp
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In many cases this example would put far more stuff in the jail than is needed.
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In the other extreme case a jail might contain only one singe file:
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the executable to be run in the jail.
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.Pp
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We recommend experimentation and caution that it is a lot easier to
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start with a ``fat'' jail and remove things until it stops working,
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than it is to start with a ``thin'' jail and add things until it works.
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.Ss "Setting Up a Jail"
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Do what was described in
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.Sx "Setting Up a Jail Directory Tree"
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