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[Xen-users] Cannot open root device "sda1" or unknown-block(0, 0) -- RHE

from [Steven J. Backus]

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Subject:	[Xen-users] Cannot open root device "sda1" or unknown-block(0, 0) -- RHEL 5
From:	"Steven J. Backus" <backus@xxxxxxxxxxxxx>
Date:	Sun, 10 Jun 2007 07:48:16 -0600 (MDT)
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Whenever I try to boot a client I get:

VFS: Cannot open root device "sda1" or unknown-block(0,0)

My disk image looks like this:

drwxr-xr-x  6 root root  4096 Jun  8 14:12 .
drwxr-xr-x 25 root root  4096 Jun  8 14:14 ..
drwxr-xr-x  2 root root  4096 Jun  8 15:31 dev
drwxr-xr-x  2 root root  4096 Jun  8 14:13 etc
drwx------  2 root root 16384 Jun  8 14:01 lost+found
drwxr-xr-x  5 root root  4096 Jun  8 14:02 var

I have an etc/fstab:

/dev/sda1               /                       ext3    defaults 1 1
none                    /dev/pts                devpts  gid=5,mode=620 0 0
none                    /dev/shm                tmpfs   defaults 0 0
none                    /proc                   proc    defaults 0 0
none                    /sys                    sysfs   defaults 0 0

I'm not sure I made the sda1 node correctly:

MAKEDEV -d /mnt/dev -x sda1

xend.log says:

[2007-06-08 15:55:53 xend 2081] DEBUG (blkif:24) exception looking
up device number for sda1: [Errno 2] No such file or directory:
'/dev/sda1'

Can someone tell me how to create /dev/sd1 properly?  Is there any
good documentation anywhere on setting this up?

Thanks,
  Steve

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