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.TH INSTALL 1
.SH NAME
install \- notes about Plan 9 from User Space installation
.SH SYNOPSIS
.B
cd \*9; ./INSTALL
.SH DESCRIPTION
To obtain the Plan 9 tree, use CVS
(see
.IR cvs (1))
or download a tar file from
.HR http://swtch.com/plan9port "" .
.PP
In the root of the tree, run
.BR ./INSTALL .
This script first uses
.IR make (1)
to build the Plan 9 build program
.IR mk (1)
if necessary.
It cleans all previously built object files and libraries out of the tree,
rebuilds and installs everything, and then cleans up.
.PP
There are a few files in tree which have the root
hard-coded in them.
After the build,
.I INSTALL
edits these files to replace the string
.B /usr/local/plan9
with the name of the root of the current tree.
.PP
Finally,
.I INSTALL
builds an HTML version of the manual and installs it in
.BR \*9/man .
.PP
.I INSTALL
can safely be repeated to rebuild the system from scratch.
.PP
The system uses different threading implementations on Linux 2.6 and
later kernels than on 2.4 and earlier;
and on FreeBSD 5 and later kernels than on FreeBSD 4 and earlier.
Running binaries from one class on another may not work.
.SH FILES
.TP
.B \*9/lib/moveplan9.files
the list of files that need to have
.B /usr/local/plan9
edited out of them
.TP
.B \*9/lib/moveplan9.sh
the script that edits the files
.TP
.B \*9/src/mkmk.sh
the shell script used to build
.IR mk (1)
.TP
.B \*9/dist/manweb
the shell script that builds the HTML manual
.TP
.B \*9/man/index.html
the top-level page in the HTML version of the manual
.SH SEE ALSO
.IR intro (1),
.IR cvs (1)
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