[WBEL-users] Problems with mirroring a system disk using software RAID andGRUB...

Thu, 12 Aug 2004 17:15:14 +0100

This is a multi-part message in MIME format.

--=-N3P68ODXVAsq1o1jsFjT
Content-Type: text/plain;
	charset="utf-8"
Content-Transfer-Encoding: quoted-printable

Dear all,

I have built a machine with Whitebox Linux 3.0r1 and fully up2dated it.
During the build process, I configured the machine to have three RAID 1
partitions (/boot / & swap) mirrored across the  two IDE drives. I am
using GRUB as my boot loader.

The machine boots happily onto these mirrored partitions when both
drives are connected to the system but if I detach either of the drives
(to simulate a disk failure) the machine will not boot - it will not
even reach the grub screen. This is obviously a bit of a major problem.

I have followed the guidance in documents that I have found on the
Internet and have installed GRUB onto both drives using the interactive
GRUB program as I understand that this is not done by the installation
program.

Any help or advice that you can give me would be greatly appreciated as
I have spent a lot of time googling for an answer but to no avail.

--

Gary Mansell
Technical Computing Team Leader
IT Department
Ricardo Consulting Engineers Ltd.
--=20

This e-mail and any files transmitted with it are confidential and =
intended
solely for the use of the individual or entity to whom they are =
addressed.
If you have received this e-mail in error please notify the sender =
immediately
and delete this e-mail from your system.  Please note that any views or =
opinions
presented in this e-mail are solely those of the author and do not =
necessarily
represent those of Ricardo (save for reports and other documentation =
formally
approved and signed for release to the intended recipient).  Only =
Directors
or Duly Authorised Officers are authorised to enter into legally binding
obligations on behalf of Ricardo unless the obligation is contained =
within
a Ricardo Purchase Order.

Ricardo may monitor outgoing and incoming e-mails and other =
telecommunications
on its e-mail and telecommunications systems.  By replying to this =
e-mail you
give consent to such monitoring.  The recipient should check this e-mail =
and
any attachments for the presence of viruses.  Ricardo accepts no =
liability for
any damage caused by any virus transmitted by this e-mail.  "Ricardo" =
means
Ricardo plc and its subsidiary companies.

Ricardo plc is a public limited company registered in England with =
registered
number 00222915.
The registered office of Ricardo plc is Bridge Works, Shoreham-by Sea,
West Sussex, BN43 5FG.
=20

--=-N3P68ODXVAsq1o1jsFjT
Content-Transfer-Encoding: quoted-printable
Content-Type: text/html;
	charset="utf-8"

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 TRANSITIONAL//EN">
<HTML>
<HEAD>
  <META HTTP-EQUIV=3D"Content-Type" CONTENT=3D"text/html; =
CHARSET=3DUTF-8">
  <META NAME=3D"GENERATOR" CONTENT=3D"GtkHTML/3.0.9">
</HEAD>
<BODY>
Dear all,<BR>
<BR>
I have built a machine with Whitebox Linux 3.0r1 and fully up2dated it. =
During the build process, I configured the machine to have three RAID 1 =
partitions (/boot / &amp; swap) mirrored across the&nbsp; two IDE =
drives. I am using GRUB as my boot loader.<BR>
<BR>
The machine boots happily onto these mirrored partitions when both =
drives are connected to the system but if I detach either of the drives =
(to simulate a disk failure) the machine will not boot - it will not =
even reach the grub screen. This is obviously a bit of a major =
problem.<BR>
<BR>
I have followed the guidance in documents that I have found on the =
Internet and have installed GRUB onto both drives using the interactive =
GRUB program as I understand that this is not done by the installation =
program.<BR>
<BR>
Any help or advice that you can give me would be greatly appreciated as =
I have spent a lot of time googling for an answer but to no avail.<BR>
<BR>
<BR>
<TABLE CELLSPACING=3D"0" CELLPADDING=3D"0" WIDTH=3D"100%">
<TR>
<TD>
--<BR>
<BR>
<TABLE CELLSPACING=3D"0" CELLPADDING=3D"0" WIDTH=3D"100%">
<TR>
<TD>
<PRE>Gary Mansell
Technical Computing Team Leader
IT Department
Ricardo Consulting Engineers Ltd.</PRE>
</TD>
</TR>
</TABLE>
<BR>
<BR>
</TD>
</TR>
</TABLE>

--  <BR>
<BR>=20
<font size=3D1 font face=3D"arial" color=3Dnavy>This e-mail and any =
files transmitted with it are confidential and intended solely for the =
use of the individual or entity to=20

whom they are addressed. 
If you have received this e-mail in error please notify the sender =
immediately and delete this e-mail from your system. Please note that =
any views 
or opinions presented in this e-mail are solely those of the author and =
do not necessarily represent those of Ricardo (save for reports and =
other 
documentation formally approved and signed for release to the intended =
recipient). Only Directors or Duly Authorised Officers are authorised =
to 
enter into legally binding obligations on behalf of Ricardo unless the =
obligation is contained within a Ricardo Purchase Order. 
 
Ricardo may monitor outgoing and incoming e-mails and other =
telecommunications on its e-mail and telecommuncations systems. By =
replying to 
this e-mail you give consent to such monitoring. The recipient should =
check e-mail and any attachments for the presence of viruses. Ricardo =
 
accepts no liability for any damage caused by any virus transmitted by =
this e-mail. "Ricardo" means Ricardo plc and its subsidiary =
companies. 
 
Ricardo plc is a public limited company registered in England with =
registered number 00222915. 
The registered office of Ricardo plc is Bridge Works,Shoreham-by Sea, =
West Sussex, BN43 5FG.

</BODY>
</HTML>

--=-N3P68ODXVAsq1o1jsFjT--