Re: KVM-74: HELP PLEASE - cannot boot from cdrom for recovery

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Gerry Reno wrote:
Gerry Reno wrote:
Javier Guerra wrote:
On Tue, Mar 31, 2009 at 5:52 PM, Gerry Reno <greno@xxxxxxxxxxx> wrote:
Ok, I've been working with this for a couple hours but this command line
errors on F10 like this:

# /usr/bin/qemu-kvm -S -M pc -m 512 -smp 2 -name MX_3 -monitor pty -boot d -drive file=/var/vm/vm1/qemu/images/MX_3/MX_3.img,if=ide,index=0,boot=on
-cdrom /dev/sr0 -net nic,macaddr=00:0c:29:e3:bc:ee,vlan=0 -net
tap,fd=17,script=,vlan=0,ifname=vnet1 -serial none -parallel none -usb -vnc
127.0.0.1:1 -k en-us
TUNGETIFF ioctl() failed: Bad file descriptor
char device redirected to /dev/pts/2

What does this error mean?

ah, i didn't notice the "fd=17" in the "-net" parameter.

to make it simple, first try with userspace network:

qemu-kvm -m 512 -hda /var/vm/vm1/qemu/images/MX_3/MX_3 -cdrom /dev/sr0
-boot d -vnc 127.0.0.1


Ok, I ran this line:

qemu-kvm -m 512 -hda /var/vm/vm1/qemu/images/MX_3/MX_3.img -cdrom /dev/sr0 -boot d -vnc 127.0.0.1:1

And it started the VM but I cannot connect to it for some reason.

The error:
$ vncviewer
Rect too big: 5x3584 at 10,0 exceeds 720x400

Have you ever seen this?
I don't know what's causing this but it seems like a really weird size. I'm still working on this error... Is there a way to tell vncviewer to connect anyway?

Ok, the third try the window came up. And it is showing the same 0003 error as before on the cdrom boot. I have no clue what is causing this error. I've turned off selinux, I've made sure the disk is in drive and mounted. There just seems to be some access problem to the cdrom device from a root owned process.

Nope, it's not just root.  I tried as the desktop user and same result:

$ qemu-kvm -m 512 -hda /var/vm/vm1/qemu/images/MX_3/MX_3.img -cdrom /dev/sr0 -boot d -vnc 127.0.0.1:1
open /dev/kvm: Permission denied
Could not initialize KVM, will disable KVM support

Console show:
Boot Failure Code:  0003
Boot from CDROM failed:  cannot read the boot disk.
FATAL: No bootable device.


Regards,
Gerry

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