| 1 | <sect1 id="ch04-creatingdirs">
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| 2 | <title>Creating directories</title>
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| 3 |
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| 4 | <para>
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| 5 | Let's create the directory tree on the LFS partition based on the FHS
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| 6 | standard, which can be found at <ulink
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| 7 | url="http://www.pathname.com/fhs/">http://www.pathname.com/fhs/</ulink>.
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| 8 | Issuing the following commands will create a default directory layout:
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| 9 | </para>
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| 10 |
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| 11 | <blockquote><literallayout>
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| 12 |
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| 13 | <userinput>cd $LFS</userinput>
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| 14 | <userinput>mkdir -p bin boot dev/pts etc home lib mnt proc root sbin
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| 15 | tmp var</userinput>
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| 16 | <userinput>for dirname in $LFS/usr $LFS/usr/local</userinput>
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| 17 | <userinput><literal> do</literal></userinput>
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| 18 | <userinput> mkdir $dirname</userinput>
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| 19 | <userinput> cd $dirname</userinput>
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| 20 | <userinput> mkdir bin etc include lib sbin share
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| 21 | src tmp var</userinput>
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| 22 | <userinput> ln -s share/man man</userinput>
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| 23 | <userinput> ln -s share/doc doc</userinput>
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| 24 | <userinput> ln -s share/info info</userinput>
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| 25 | <userinput> cd $dirname/share</userinput>
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| 26 | <userinput> mkdir dict doc info locale man nls misc
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| 27 | terminfo zoneinfo</userinput>
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| 28 | <userinput> cd $dirname/share/man</userinput>
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| 29 | <userinput> mkdir man1 man2 man3 man4 man5 man6 man7
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| 30 | man8</userinput>
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| 31 | <userinput>done</userinput>
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| 32 | <userinput>cd $LFS/var</userinput>
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| 33 | <userinput>mkdir lock log mail run spool tmp</userinput>
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| 34 |
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| 35 | </literallayout></blockquote>
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| 36 |
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| 37 | <para>
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| 38 | Normally, directories are created with permission mode 755, which isn't
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| 39 | desired for all directories. The first change is a mode 0750 for the
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| 40 | $LFS/root directory. This is to make sure that not just everybody can
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| 41 | enter the /root directory (the same a user would do with /home/username
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| 42 | directories). The second change is a mode 1777 for the tmp
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| 43 | directories. This way, any user can write data to the /tmp directory but
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| 44 | cannot remove another user's files (the latter is caused by
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| 45 | the socalled "sticky bit" - bit 1 of the 1777 bit mask).
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| 46 | </para>
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| 47 |
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| 48 | <blockquote><literallayout>
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| 49 |
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| 50 | <userinput>cd $LFS &&</userinput>
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| 51 | <userinput>chmod 0750 root &&</userinput>
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| 52 | <userinput>chmod 1777 tmp usr/tmp usr/local/tmp var/tmp</userinput>
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| 53 |
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| 54 | </literallayout></blockquote>
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| 55 |
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| 56 | <para>
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| 57 | Now that the directories are created, copy the source files that were
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| 58 | downloaded in chapter 3 to some subdirectory under $LFS/usr/src (you
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| 59 | will need to create the desired directory yourself).
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| 60 | </para>
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| 61 |
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| 62 | </sect1>
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| 63 |
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