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Bug 611291 - qemu: Cannot boot off host CDROM device /dev/sr0
qemu: Cannot boot off host CDROM device /dev/sr0
Product: Red Hat Enterprise Linux 6
Classification: Red Hat
Component: qemu-kvm (Show other bugs)
All Linux
high Severity medium
: beta
: ---
Assigned To: john cooper
Virtualization Bugs
Depends On:
Blocks: 580953
  Show dependency treegraph
Reported: 2010-07-04 14:28 EDT by Jon Masters
Modified: 2014-07-24 23:46 EDT (History)
10 users (show)

See Also:
Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of:
Last Closed: 2010-11-19 14:40:53 EST
Type: ---
Regression: ---
Mount Type: ---
Documentation: ---
Verified Versions:
Category: ---
oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---

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Description Jon Masters 2010-07-04 14:28:25 EDT
Description of problem:

Out of the box RHEL6 install does not attach to /dev/sr0 (CDROM) when creating a new guest to install RHEL5.5 using virt-manager. The result is that the newly created guest refuses to boot the installer and must then be halted, boot device changed, the CDROM explicitly attached to the guest, then installation begun.

Instead, the CDROM device should be attached on first install boot if desired, with a warning if it cannot be so attached.

Comment 1 Jon Masters 2010-07-04 14:29:45 EDT
This probably isn't a problem if you test using ISO image files, but the raw device does not seem to be working as intended.
Comment 3 Cole Robinson 2010-07-07 10:44:05 EDT
Please provide the output of virt-manager --debug when creating the guest, and /var/log/libvirt/qemu/<vmname>.log
Comment 4 Cole Robinson 2010-07-07 11:38:54 EDT
Tried this myself. Here's the libvirt generated command line:

/usr/libexec/qemu-kvm -S -M rhel6.0.0 -enable-kvm -m 512 -smp 1,sockets=1,cores=1,threads=1 -name cdrom-test -uuid 028c1604-f683-bbef-ffb0-ec0c5df82c88 -nodefconfig -nodefaults -chardev socket,id=monitor,path=/var/lib/libvirt/qemu/cdrom-test.monitor,server,nowait -mon chardev=monitor,mode=control -rtc base=utc -no-reboot -boot d -drive file=/var/lib/libvirt/images/cdrom-test.img,if=none,id=drive-virtio-disk0,format=raw,cache=none -device virtio-blk-pci,bus=pci.0,addr=0x4,drive=drive-virtio-disk0,id=virtio-disk0 -drive file=/dev/sr0,if=none,media=cdrom,id=drive-ide0-1-0,readonly=on,cache=none -device ide-drive,bus=ide.1,unit=0,drive=drive-ide0-1-0,id=ide0-1-0 -netdev tap,fd=20,id=hostnet0,vhost=on,vhostfd=21 -device virtio-net-pci,netdev=hostnet0,id=net0,mac=52:54:00:92:21:41,bus=pci.0,addr=0x5 -chardev pty,id=serial0 -device isa-serial,chardev=serial0 -usb -device usb-tablet,id=input0 -vnc -k en-us -vga cirrus -device AC97,id=sound0,bus=pci.0,addr=0x6 -device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x3

VM shows a boot error:

Boot failed: Could not read from CDROM (code 0003)
No bootable device.

Reproduced with a smaller command line:

/usr/libexec/qemu-kvm -M rhel6.0.0 -enable-kvm -m 512 -boot d -drive file=/dev/sr0,if=none,media=cdrom,id=drive-ide0-1-0,readonly=on,cache=none -device ide-drive,bus=ide.1,unit=0,drive=drive-ide0-1-0,id=ide0-1-0

Reassigning to qemu.
Comment 5 Dor Laor 2010-07-12 07:30:06 EDT
What's the qemu-kvm and seabios versions? It did work for me.
Comment 7 lihuang 2010-07-31 02:36:20 EDT
I can reproduce it on 
( tested under virt-manager and command line )

install from host cdrom is ok if use CLI : -cdrom /dev/sr0
Comment 8 lihuang 2010-07-31 03:53:19 EDT
well . just found bz#608548 and the workaround bz#616480
Comment 12 john cooper 2010-11-19 14:40:53 EST
Closing per comment above.

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