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diff --git a/sag-0.6.1-www/Invisible/sag-0.6/node45.html b/sag-0.6.1-www/Invisible/sag-0.6/node45.html new file mode 100644 index 0000000..80a3f00 --- /dev/null +++ b/sag-0.6.1-www/Invisible/sag-0.6/node45.html @@ -0,0 +1,106 @@ +<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN"> +<!--Converted with LaTeX2HTML 96.1-h (September 30, 1996) by Nikos Drakos (nikos@cbl.leeds.ac.uk), CBLU, University of Leeds --> +<HTML> +<HEAD> +<TITLE>Creating a filesystem</TITLE> +<META NAME="description" CONTENT="Creating a filesystem"> +<META NAME="keywords" CONTENT="sag"> +<META NAME="resource-type" CONTENT="document"> +<META NAME="distribution" CONTENT="global"> +<LINK REL=STYLESHEET HREF="sag.css"> +</HEAD> +<BODY LANG="EN" > + <A NAME="tex2html885" HREF="node46.html"><IMG WIDTH=37 HEIGHT=24 ALIGN=BOTTOM ALT="next" SRC="./next_motif.gif"></A> <A NAME="tex2html883" HREF="node41.html"><IMG WIDTH=26 HEIGHT=24 ALIGN=BOTTOM ALT="up" SRC="./up_motif.gif"></A> <A NAME="tex2html877" HREF="node44.html"><IMG WIDTH=63 HEIGHT=24 ALIGN=BOTTOM ALT="previous" SRC="./previous_motif.gif"></A> <A NAME="tex2html887" HREF="node1.html"><IMG WIDTH=65 HEIGHT=24 ALIGN=BOTTOM ALT="contents" SRC="./contents_motif.gif"></A> <A NAME="tex2html888" HREF="node114.html"><IMG WIDTH=43 HEIGHT=24 ALIGN=BOTTOM ALT="index" SRC="./index_motif.gif"></A> <BR> +<B> Next:</B> <A NAME="tex2html886" HREF="node46.html">Mounting and unmounting</A> +<B>Up:</B> <A NAME="tex2html884" HREF="node41.html">Filesystems</A> +<B> Previous:</B> <A NAME="tex2html878" HREF="node44.html">Which filesystem should be </A> +<BR> <P> +<H2><A NAME="SECTION00584000000000000000">Creating a filesystem</A></H2> +<A NAME="secmkfs"> </A> +<P> + Filesystems are created, i.e., initialized, with the <tt>mkfs</tt><A NAME="1563"> </A> + command. There is actually a separate program for each filesystem + type. <tt>mkfs</tt><A NAME="1565"> </A> is just a front end that runs the appropriate + program depending on the desired filesystem type. The type is + selected with the <tt>-t fstype</tt> option. +<P> + The programs called by <tt>mkfs</tt><A NAME="1567"> </A> have slightly different + command line interfaces. + The common and most important options are summarized below; see + the manual pages for more. + <BLOCKQUOTE> <DL ><DT><STRONG><TT>-t</TT> <I>fstype</I></STRONG> +<DD> Select the type of the filesystem. + <DT><STRONG><TT>-c</TT></STRONG> +<DD> Search for bad blocks and initialize the bad + block list accordingly. + <DT><STRONG><TT>-l</TT> <I>filename</I></STRONG> +<DD> Read the initial bad block list + from the file <I>filename</I>. +<P> +</DL></BLOCKQUOTE> + To create an ext2 filesystem on a floppy, one would give the + following commands: + <BLOCKQUOTE> <TT> +<code>$</code> <I>fdformat -n /dev/fd0H1440 </I> <BR> +<code>Double-sided, 80 tracks, 18 sec/track. Total capacity 1440 kB.</code> <BR> +<code>Formatting ... done</code> <BR> +<code>$</code> <I>badblocks /dev/fd0H1440 1440 > bad-blocks</I> <BR> +<code>$</code> <I>mkfs -t ext2 -l bad-blocks /dev/fd0H1440</I> <BR> +<code>mke2fs 0.5a, 5-Apr-94 for EXT2 FS 0.5, 94/03/10</code> <BR> +<code>360 inodes, 1440 blocks</code> <BR> +<code>72 blocks (5.00%) reserved for the super user</code> <BR> +<code>First data block=1</code> <BR> +<code>Block size=1024 (log=0)</code> <BR> +<code>Fragment size=1024 (log=0)</code> <BR> +<code>1 block group</code> <BR> +<code>8192 blocks per group, 8192 fragments per group</code> <BR> +<code>360 inodes per group</code> <BR> +<code></code><BR> +<code>Writing inode tables: done </code> <BR> +<code>Writing superblocks and filesystem accounting information: done</code> <BR> +<code>$</code> + </TT></BLOCKQUOTE> + First, the floppy was formatted (the <tt>-n</tt> option prevents + validation, i.e., bad block checking). Then bad blocks were + searched with <tt>badblocks</tt><A NAME="1569"> </A>, with the output redirected to + a file, <tt>bad-blocks</tt>. Finally, the filesystem was created, + with the bad block list initialized by whatever <tt>badblocks</tt><A NAME="1571"> </A> + found. +<P> + The <TT>-c</TT> option could have been used with <tt>mkfs</tt><A NAME="1573"> </A> + instead of <tt>badblocks</tt><A NAME="1575"> </A> and a separate file. The example + below does that. + <BLOCKQUOTE> <TT> +<code>$</code> <I>mkfs -t ext2 -c /dev/fd0H1440</I> <BR> +<code>mke2fs 0.5a, 5-Apr-94 for EXT2 FS 0.5, 94/03/10</code> <BR> +<code>360 inodes, 1440 blocks</code> <BR> +<code>72 blocks (5.00%) reserved for the super user</code> <BR> +<code>First data block=1</code> <BR> +<code>Block size=1024 (log=0)</code> <BR> +<code>Fragment size=1024 (log=0)</code> <BR> +<code>1 block group</code> <BR> +<code>8192 blocks per group, 8192 fragments per group</code> <BR> +<code>360 inodes per group</code> <BR> +<code> </code> <BR> +<code>Checking for bad blocks (read-only test): done</code> <BR> +<code>Writing inode tables: done </code> <BR> +<code>Writing superblocks and filesystem accounting information: done</code> <BR> +<code>$ </code> + </TT></BLOCKQUOTE> + The <TT>-c</TT> is more convenient than a separate use of + <tt>badblocks</tt><A NAME="1577"> </A>, but <tt>badblocks</tt><A NAME="1579"> </A> is necessary for checking + after the filesystem has been created. +<P> + The process to prepare filesystems on hard disks or partitions + is the same as for floppies, except that the formatting isn't needed. +<P> +<HR><A NAME="tex2html885" HREF="node46.html"><IMG WIDTH=37 HEIGHT=24 ALIGN=BOTTOM ALT="next" SRC="./next_motif.gif"></A> <A NAME="tex2html883" HREF="node41.html"><IMG WIDTH=26 HEIGHT=24 ALIGN=BOTTOM ALT="up" SRC="./up_motif.gif"></A> <A NAME="tex2html877" HREF="node44.html"><IMG WIDTH=63 HEIGHT=24 ALIGN=BOTTOM ALT="previous" SRC="./previous_motif.gif"></A> <A NAME="tex2html887" HREF="node1.html"><IMG WIDTH=65 HEIGHT=24 ALIGN=BOTTOM ALT="contents" SRC="./contents_motif.gif"></A> <A NAME="tex2html888" HREF="node114.html"><IMG WIDTH=43 HEIGHT=24 ALIGN=BOTTOM ALT="index" SRC="./index_motif.gif"></A> <BR> +<B> Next:</B> <A NAME="tex2html886" HREF="node46.html">Mounting and unmounting</A> +<B>Up:</B> <A NAME="tex2html884" HREF="node41.html">Filesystems</A> +<B> Previous:</B> <A NAME="tex2html878" HREF="node44.html">Which filesystem should be </A> +<P><ADDRESS> +<I>Lars Wirzenius <BR> +Sat Nov 15 02:32:11 EET 1997</I> +</ADDRESS> +</BODY> +</HTML> |