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<H3 align="left"><img src="../../gx/dennis/qbubble.gif"
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height="50" width="60" alt="(?) " border="0"
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>Kernel Panic after putting disk back</H3>
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<p><strong>From hma
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</strong></p>
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<p align="right"><strong>Answered By Heather Stern
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<br></strong></p>
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<!-- sig -->
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<!-- ::
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Kernel Panic after putting disk back
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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:: -->
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<P><STRONG>
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Hi,
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</STRONG></P>
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<P><STRONG>
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I like to thank u guys for great job. Am still going thru your past issues.
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I have sent 2 questions here and I have not heard anything from u guys..
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is my pattern wrong?
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</STRONG></P>
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<BLOCKQUOTE><IMG SRC="../../gx/dennis/bbub.gif" ALT="(!)"
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HEIGHT="28" WIDTH="50" BORDER="0"
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> [Heather]
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1. We can't reply to every message. There are hundreds and hundreds of them
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every month. That you received no reply before is not a personal slight.
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We will never get to all of them. Just continue to look for whether
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someone else's answers apply to your questions too.
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</BLOCKQUOTE>
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<BLOCKQUOTE>
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2. You had no subject this time - that usually doesn't help.
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For good behavior patterns that help your message get seen, see the TAG
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entry "Creed of the Querent" a few issues ago:
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<A HREF="http://www.linuxgazette.com/issue62/tag/5.html"
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>http://www.linuxgazette.com/issue62/tag/5.html</A>
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</BLOCKQUOTE>
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<P><STRONG><IMG SRC="../../gx/dennis/qbub.gif" ALT="(?)"
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HEIGHT="28" WIDTH="50" BORDER="0"
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>
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I still have the following problem and I hope U can help now...The problem
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am having is that when I boot to my linux I recieve the following message:
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" Vfs: Kernel panic" and that it. It doesn't go.
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</STRONG></P>
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<BLOCKQUOTE><IMG SRC="../../gx/dennis/bbub.gif" ALT="(!)"
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HEIGHT="28" WIDTH="50" BORDER="0"
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> [Heather]
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This message means the kernel loaded, then could not find what it's looking
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for next. VFS means virtual file system - that's what really manages all
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of Linux' filesystem drivers - it probably can't find the root fs. Although
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usually if that's the problem it says so. Odd.
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</BLOCKQUOTE>
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<P><STRONG><IMG SRC="../../gx/dennis/qbub.gif" ALT="(?)"
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HEIGHT="28" WIDTH="50" BORDER="0"
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>
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When I try doing fsck,
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I get command not found.
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</STRONG></P>
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<BLOCKQUOTE><IMG SRC="../../gx/dennis/bbub.gif" ALT="(!)"
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HEIGHT="28" WIDTH="50" BORDER="0"
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> [Heather]
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You're doing fsck from where? fsck is a linux utility, so you need to come
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up from a linux rescue disk of some sort. Toms Root Boot perhaps - handy
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because you can download and create one using DOS if you have to:
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<A HREF="http://www.toms.net/rb"
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>http://www.toms.net/rb</A>
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</BLOCKQUOTE>
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<BLOCKQUOTE>
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There are Windows utilities for accessing ext2 volumes, but they won't
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directly help you get back into Linux, and I don't know of a Windows based
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ext2 analogue to Scandisk.
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</BLOCKQUOTE>
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<P><STRONG><IMG SRC="../../gx/dennis/qbub.gif" ALT="(?)"
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HEIGHT="28" WIDTH="50" BORDER="0"
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>
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The problem started when I remove one of my harddisk and after puting it
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back, I got this problem. But I get into win when I select it.
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</STRONG></P>
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<BLOCKQUOTE><IMG SRC="../../gx/dennis/bbub.gif" ALT="(!)"
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HEIGHT="28" WIDTH="50" BORDER="0"
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> [Heather]
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When you select Win from what? Have you replaced LILO with something else?
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(LILO doesn't normally have a selector, it makes you type things. Of course
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you could have Storm Linux, which replaced the boot: prompt with a cool
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selector screen.) Did you move any partitions before you put the drive back?
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Is the drive now your second drive?
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</BLOCKQUOTE>
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<BLOCKQUOTE>
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To fix LILO:
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</BLOCKQUOTE>
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<BLOCKQUOTE><ol>
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<li> Boot from that rescue disk
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<li> mount up the <TT>/</TT> volume on some empty directory ... <tt>/mnt</tt>
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would do nicely ... <em> don't forget to tell it to use ext2, example:
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<br><tt>mount -t ext2 /dev/hda5 /mnt</tt></em>
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<li> cd into the mountpoint and run chroot
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<li> edit your <TT>/etc/lilo.conf</TT> so it mentions your new volumes... and
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points
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at the right volume as your root partition now! For example, if it's
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now the second drive, than all your references to <TT>/dev/hda</TT> have to
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refer to <TT>/dev/hdb</TT>, except for "boot" (which says where to put the
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LILO first stage)
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<li> (If it has become the second drive) you'll also want to edit
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<TT>/etc/fstab</TT>,
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since all its drive references are off, too. Otherwise you'll get a
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failure in the next stage when Linux really spins up.
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<li> Run <TT>/sbin/lilo</TT> to put your bootloader back together.
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Or else fix your new bootloader so it passes good options to your linux
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kernel - I think NT needs a copy of a (correct) LILO bootsector for its
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mechanism, in a tiny little file.
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<br>
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In short, LILO hates it when you move stuff around. Sorry.
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</ol></BLOCKQUOTE>
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<P><STRONG><IMG SRC="../../gx/dennis/qbub.gif" ALT="(?)"
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HEIGHT="28" WIDTH="50" BORDER="0"
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>
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I hope u reply now.
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</STRONG></P>
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<BLOCKQUOTE><IMG SRC="../../gx/dennis/bbub.gif" ALT="(!)"
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HEIGHT="28" WIDTH="50" BORDER="0"
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> [Heather]
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My inbox load today was light and I'm in a crossplatform mood, so you got
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lucky. Usually I leave LILO matters for the rest of the Gang.
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</BLOCKQUOTE>
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<P><STRONG><IMG SRC="../../gx/dennis/qbub.gif" ALT="(?)"
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HEIGHT="28" WIDTH="50" BORDER="0"
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>
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Thanks.
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<br>Hassan
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</STRONG></P>
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<BLOCKQUOTE><IMG SRC="../../gx/dennis/bbub.gif" ALT="(!)"
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HEIGHT="28" WIDTH="50" BORDER="0"
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> [Heather]
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Have a happier day
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</BLOCKQUOTE>
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<p>... I merged answers about his chroot troubles into the steps above ...</p>
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<P><STRONG><IMG SRC="../../gx/dennis/qbub.gif" ALT="(?)"
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HEIGHT="28" WIDTH="50" BORDER="0"
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>
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Once again, thanx and keep up the good work...some day when I become a guru, I hope to help too...
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<IMG SRC="../../gx/dennis/smily.gif" ALT=":-)"
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height="24" width="20" align="middle">
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</STRONG></P>
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<P><STRONG>
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Hassan
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</STRONG></P>
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<BLOCKQUOTE><IMG SRC="../../gx/dennis/bbub.gif" ALT="(!)"
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HEIGHT="28" WIDTH="50" BORDER="0"
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> [Heather]
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When you feel ready, I'm pretty sure the Gang will still be here to welcome
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you aboard!
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</BLOCKQUOTE>
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<!-- end 5 -->
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<H5 align="center">This page edited and maintained by the Editors
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of <I>Linux Gazette</I>
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<a href="http://www.linuxgazette.com/copying.html"
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>Copyright ©</a> 2001
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<BR>Published in issue 66 of <I>Linux Gazette</I> May 2001</H5>
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<H6 ALIGN="center">HTML script maintained by
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<A HREF="mailto:star@starshine.org">Heather Stern</a> of
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Starshine Technical Services,
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