[mythtv-users] Kernel Panic - SCSI & IDE

Brian Wood beww at beww.org
Sat Jul 8 17:32:40 UTC 2006



On Jul 8, 2006, at 11:09 AM, Bruce Nordstrand wrote:

> Hi all
>
> before I retry an install on my machine I have to ask if this will  
> work.
> I have spent the last 2 days trying various flavors of Myth on my
> proof-of-concept box, all failing in various ways. I have a sneaking
> suspicion I cannot do want I want to do, so I have finally given in  
> and
> have to ask you guys.
>
> My machine is an IBM eSeries x200 server that has a 29160LP Adaptec  
> SCSI
> card with an IBM ST31840LW 18GB 160Mbs 10,000 RPM SCSI drive in it
> (sda). The machine is a PIII 933Mhz with 384Mb ram (to be upgraded to
> more later on....maybe). I added a 40GB 7200rpm Segate Barracuda drive
> (hda) along with a DVD burner (hdb).

Not related to your primary problem but it's generally not a good  
idea to put a hard drive and an optical drive on the same IDE channel.

Unless of course you have no options, perhaps your mobo has only one  
IDE connector ?


>
> So far I have been unsuccessful at installing KnoppMyth which just
> didn't want to work with this configuration at all. I have just  
> finished
> installing a Fedora Core 4 version and while it boots from the SCSI
> drive, it fails with a kernel panic complaining about the LVM I  
> created.
>
> During setup I created sda1 as /boot (1GB - ext3), sda2 as swap (1GB),
> sda3 as / (16GB - ext3). The entire IDE drive was allocated to an LVM
> group and then 2 virtual partitions were created within that group for
> /video (18GB) and /music (19GB). I set the install to write the MBR to
> sda after changing the order of sda and hda to make sure sda was the
> "first" drive.
>
> I did it this way so I can add bigger IDE drives later on (can't  
> afford
> any more SCSI drives!).
>
> The FC4 install went fine and rebooted. That's when things went pear
> shaped. After starting Linux it dies with a kernel panic. The message
> is: not synching VFS: Unable to mount root fs on unknown-block(3,1).
>
> Does anyone know what this means and , better still, know if I can fix
> it? Actually anything at all would help!
>
> Ever hopeful I can get this machine to work as is...

Just a personal opinion, but I really wonder if 18GB of additional  
storage warrants the hassle of trying to make SCSI and IDE play nice  
together.

You really don't need the capability of the SCSI drive for a Myth  
system, IDE drives are more than fast enough for that.

Granted it should be possible to do what you are trying, but is it  
really worth it for an additional 9 hours of storage ?

You are really going to want more than the 40Gb of storage that you  
have, I can guarantee that.

I'd save that nice SCSI card and drive for a system that could really  
make use of them :-)

<joke>

I'd certainly trade you a 500GB IDE drive for that scsi card :-)

</joke>


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