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From what I've read up on, it seems like most non-server bioses do
some sort of fake raid, where the raid is controlled from the bios
but is actually a software raid (at least partially). Windows which
came installed on the machine sees it (or reports it) as one disk
(although it does call it oemraid). Linux seems a bit more confused.
When I started it with dmraid=true, it sees it both as a strip drive
(raid 0) and it seems that somewhat also as multiple disks. I have
both /dev/sda and /dev/sdb and /dev/mapper/{really long name}.<br>
<br>
I can partition the drives and install the system to it, but then
grub (grub2 actually) chokes. I can't mount the system properly
under /target, calling grub-probe directly recognizes the partition
as ext2 (although it is ext4) but calling grub-install says that
grub-probe chokes.<br>
<br>
The system has 2 500gb disks in raid0 (strip) setup. The partition
setup:<br>
<br>
#1 (primary) is windows 7 boot partition (1.17GB)<br>
#2 (primary) Windows 7 (600GB)<br>
<br>
free space for linux (will probably need to be logical)<br>
<br>
#3 (primary) lenovo recovery (15.6 GB)<br>
<br>
On 18-Aug-11 17:39, Oleg Goldshmidt wrote:
<blockquote
cite="mid:CAM+3FtTp2pBHmWS8e5quxwpnYj8EjyniWpFctg_-r8CSM5mdWw@mail.gmail.com"
type="cite">
<div dir="ltr"><font face="georgia,serif"><br>
</font><br>
<div class="gmail_quote">On Thu, Aug 18, 2011 at 3:23 PM, Micha
Feigin <span dir="ltr"><<a moz-do-not-send="true"
href="mailto:michf@post.tau.ac.il">michf@post.tau.ac.il</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt
0.8ex; border-left: 1px solid rgb(204, 204, 204);
padding-left: 1ex;">I just got a new w520 with two 500GB
hard drives configured in raid0 (seems to be a bios based
software raid0).</blockquote>
<div><br>
I am a bit confused. If the RAID is "BIOS-based" then it
sounds to me like it is HW RAID. In this case it should be
transparent to Linux, grub, even DOS, shouldn't it?<br>
<br>
Is it some sort of "fake RAID" that is not a true HW RAID?
In that case you may be out of luck or it may still work
after some incantations and contortions.<br>
</div>
<blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt
0.8ex; border-left: 1px solid rgb(204, 204, 204);
padding-left: 1ex;"> Windows is already installed and
running on it (and I need it to stay there unfortunately)
and I'm trying to install linux along side it (debian
unstable).<br>
</blockquote>
<div><br>
Are you trying to install Linux on the RAID itself or on
another disk and use the RAID under it? Or on the RAID
itself? It sounds like the latter, but I am not sure. Some
details on your partition layout would help.<br>
<br>
</div>
<blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt
0.8ex; border-left: 1px solid rgb(204, 204, 204);
padding-left: 1ex;">
<br>
I got the installed running and it installed fine</blockquote>
<div><br>
I am not familiar with debian installation, but what did it
show as the partition table during install? Did you modify
it in any way?<br>
<br>
What does the partition table look like now?<br>
</div>
<blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt
0.8ex; border-left: 1px solid rgb(204, 204, 204);
padding-left: 1ex;"> as it seems (although it looks like it
messed up the partition table a bit as now I also have sda1
and sda2 that weren't there to begin with I think), but I
can't get grub to install</blockquote>
<div><br>
What exactly did you do and what didn't work?<br>
</div>
<blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt
0.8ex; border-left: 1px solid rgb(204, 204, 204);
padding-left: 1ex;"> and rescue mode also won't boot into
linux no matter what drive I choose as root. I did manage to
mount the partition from /dev/matter/...05 and everything is
installed on it, but again, no grub.<br>
<br>
Any ideas on how to get linux up and running (I need to boot
into it somehow).<br>
</blockquote>
<div><br>
My first guess is that you need to edit grub's device map
as appropriate for your setup.<br>
<br>
</div>
</div>
However, this is a wild guess. It would help if you posted fdisk
-l, mount table, details of your grub configuration, things that
you have tried and the corresponding outputs...<br clear="all">
<br>
-- <br>
Oleg Goldshmidt | <a moz-do-not-send="true"
href="mailto:oleg@goldshmidt.org" target="_blank">pub@goldshmidt.org</a><br>
</div>
</blockquote>
<br>
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