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56 lines
2.4 KiB
XML
56 lines
2.4 KiB
XML
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<sect1 id="ch05-installasuser">
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<title>Install all software as an unprivileged user</title>
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<?dbhtml filename="installasuser.html" dir="chapter05"?>
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<para>When you are logged in as root during chapter 5, it is possible
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that some files of your host system will be overwritten by the ones
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you'll build in chapter 5. There can be all kinds of reasons for this
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to happen, for example because the $LFS environment variable is not
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set. Overwriting some files from your host system will most likely
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cause all kinds of problems, so it's a good idea to be logged in as
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an unprivileged user during chapter 5. To make sure the environment
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is as clean as possible, we'll create a new user lfs that can be
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used while building the static installation. Issuing the following
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commands as root will create a new user "lfs":</para>
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<para><screen><userinput>useradd -s /bin/bash -m lfs
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passwd lfs</userinput></screen></para>
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<para>Now it's time to change the permissions on your LFS partitions
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so user "lfs" will have write access to it. Run the following command
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as root to change the ownership of the LFS partition to user "lfs":</para>
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<para><screen><userinput>chown lfs $LFS</userinput></screen></para>
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<para>Now you can login as user "lfs". You can do this two ways: either
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the normal way through the console or the display manager, or with
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<userinput>su - lfs</userinput>. When you're working as user "lfs", type
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the following commands to setup a good environment to work in:</para>
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<para><screen><userinput>cat >~/.bash_profile <<"EOF"
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#!/bin/sh
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umask 022
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LFS=/mnt/lfs
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LC_ALL=POSIX
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export LFS LC_ALL
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EOF
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source ~/.bash_profile</userinput></screen></para>
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<para>This profile makes sure the umask is set to 022 so newly created
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files and directories will have the correct permission. It is advisable
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to keep this setting throughout your LFS installation. Also, the $LFS
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and $LC_ALL environment variables are set. $LFS has been explained in
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previous chapters already. $LC_ALL is a variable that is used for
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internationalization.</para>
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<para>When your host distribution uses a glibc version older than 2.2.4,
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having $LC_ALL set to something else than "C" or "POSIX" while working
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through chapter 5 may cause trouble when you've exited the chrooted
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environment of chapter 6 and try to return to it. By setting this to
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"POSIX" ("C" is an alias for "POSIX") we ensure that everything will
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work as expected in the chrooted environment.</para>
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</sect1>
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