91 lines
2.7 KiB
HTML
91 lines
2.7 KiB
HTML
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN">
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<HTML>
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<META NAME="GENERATOR" CONTENT="SGML-Tools 1.0.9">
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<TITLE>UMSDOS HOW-TO: Different topics about the operation of Umsdos</TITLE>
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<LINK HREF="UMSDOS-HOWTO-5.html" REL=next>
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<LINK HREF="UMSDOS-HOWTO-3.html" REL=previous>
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<A HREF="UMSDOS-HOWTO-5.html">Next</A>
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<A HREF="UMSDOS-HOWTO.html#toc4">Contents</A>
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<HR>
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<H2><A NAME="s4">4. Different topics about the operation of <EM>Umsdos</EM></A></H2>
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<P>
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<P>
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<H2><A NAME="ss4.1">4.1 Mount option</A>
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</H2>
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<P>
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<P>You can use the same mount option as for the Ms-DOS file system.
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The option conv= is questionable on a <EM>Umsdos</EM> system. I suggest
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to avoid it. Mostly the option you may want to look at are
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<P>
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<UL>
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<LI>uid=</LI>
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<LI>gid=</LI>
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<LI>umask=</LI>
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</UL>
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<P>Just remember that <EM>Umsdos</EM> manage non promoted directory
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the same way as the <EM>Ms-DOS</EM> file system. The option above
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will apply globally to all non promoted directory. <EM>uid</EM>
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setup the default owner, <EM>gid</EM> setup the default group
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and <EM>umask</EM> setup the default permissions.
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<P>
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<H2><A NAME="ss4.2">4.2 How to set defaults for the root</A>
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</H2>
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<P>
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<P>umssetup was created to provide at run time default ownership
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for the root partition. For other <EM>Umsdos</EM> partition, mount
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option may be used or umssetup. Storing mount option in /etc/fstab
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is the prefered way for non root partition. Here is an example.
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Put this in /etc/rc.d/rc.S.
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<P>
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<BLOCKQUOTE><CODE>
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<PRE>
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/sbin/umssetup -u jack -g group -m 0755 /
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</PRE>
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</CODE></BLOCKQUOTE>
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<P>
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<H2><A NAME="ss4.3">4.3 To swap or not to swap</A>
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</H2>
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<P>
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<P>Using a swap file is generally slower than a swap partition.
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It is however much more flexible. You can setup a swap file
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in a <EM>Umsdos</EM> partition the same way you do it for any
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other <EM>Linux</EM> file systems. For example, to setup a
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8 megabytes swap file in the root directory:
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<P>
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<BLOCKQUOTE><CODE>
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<PRE>
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dd if=/dev/zero bs=1024k count=8 of=/swap
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mkswap /swap 8192
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sync
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swapon /swap
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</PRE>
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</CODE></BLOCKQUOTE>
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<P>Once done, you can put the following line in /etc/fstab
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<P>
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<BLOCKQUOTE><CODE>
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<PRE>
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/swap swap swap default
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</PRE>
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</CODE></BLOCKQUOTE>
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<P>And the swap file will be activated at each boot (There is
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generally a "swapon -a" in <CODE>/etc/rc.d/rc.S</CODE>).
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<P>
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<HR>
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