meaning of error

meaning of error

[Steven Blakeslee]

Any help would be appreciated.  In the error "Kernel panic: VFS: Unable to
mount root fs on 01:01" what does the 01:01 stand for?  I've also seen 00:00
and 01:00.

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re: meaning of error

[David Boutcher]

> Any help would be appreciated.  In the error "Kernel panic: VFS: Unable
to
> mount root fs on 01:01" what does the 01:01 stand for?  I've also seen
00:00
> and 01:00.

Devices are identified by a major number and minor number.  This says the
kernel is looking on major 01 minor 01 for a file system....and not finding
one. Usually you fix this by adding a "root=/dev/sda1" (or whatever) kernel
parameter when you boot.  The kernel doesn't "search" for a root file
system....it basically expects it to be where you tell it.

Dave Boutcher
Senior Technical Staff Member
iSeries Linux Development and Architecture


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Re: meaning of error

[Matt Porter]

On Thu, Apr 11, 2002 at 05:23:56PM -0400, Steven Blakeslee wrote:
>
> Any help would be appreciated.  In the error "Kernel panic: VFS: Unable to
> mount root fs on 01:01" what does the 01:01 stand for?  I've also seen 00:00
> and 01:00.

Major:Minor of the root device it attempted and failed to open.

See Documentation/devices.txt in your kernel source for information
on the assignment of these values.

--
Matt Porter
MontaVista Software, Inc.
mporter@mvista.com

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