Bug 516034
| Summary: | libvirt is not chowning kernel/initrd images before launching qemu | ||||||
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| Product: | [Fedora] Fedora | Reporter: | James Laska <jlaska> | ||||
| Component: | libvirt | Assignee: | Daniel Veillard <veillard> | ||||
| Status: | CLOSED RAWHIDE | QA Contact: | Fedora Extras Quality Assurance <extras-qa> | ||||
| Severity: | high | Docs Contact: | |||||
| Priority: | high | ||||||
| Version: | rawhide | CC: | berrange, clalance, crobinso, dwmw2, gcosta, itamar, jaswinder, jturner, markmc, veillard, virt-maint | ||||
| Target Milestone: | --- | ||||||
| Target Release: | --- | ||||||
| Hardware: | All | ||||||
| OS: | Linux | ||||||
| Whiteboard: | |||||||
| Fixed In Version: | Doc Type: | Bug Fix | |||||
| Doc Text: | Story Points: | --- | |||||
| Clone Of: | Environment: | ||||||
| Last Closed: | 2009-08-06 16:23:16 UTC | Type: | --- | ||||
| Regression: | --- | Mount Type: | --- | ||||
| Documentation: | --- | CRM: | |||||
| Verified Versions: | Category: | --- | |||||
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |||||
| Cloudforms Team: | --- | Target Upstream Version: | |||||
| Embargoed: | |||||||
| Bug Depends On: | |||||||
| Bug Blocks: | 498968 | ||||||
| Attachments: |
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Description
James Laska
2009-08-06 13:42:00 UTC
Oh, i think this is probably due to us forgetting to chown() the kenrel/initrd image to be readable by the 'qemu' user that VMs now run as. As a quick hack, you can edit /etc/libvirt/qemu.conf and set user="root" and group="root", and chown /var/lib/libvirt/images back to root:root. if it then works, then this is a libvirt bug. Okay, problem seems to be that we're not chowning the kernel and initrd before spawning qemu This should be done in e.g. qemuDomainSetDeviceOwnership() Patch posted upstream: http://www.redhat.com/archives/libvir-list/2009-August/msg00118.html After making the suggested change in comment#1 1. Change user/group = root in '/etc/libvirt/qemu.conf' 2. chown root:root /var/lib/libvirt/images virt-install fails with ... Traceback (most recent call last): File "/usr/sbin/virt-install", line 929, in <module> main() File "/usr/sbin/virt-install", line 825, in main start_time, guest.start_install) File "/usr/sbin/virt-install", line 880, in do_install dom = install_func(conscb, progresscb, wait=(not wait)) File "/usr/lib/python2.6/site-packages/virtinst/Guest.py", line 628, in start_install return self._do_install(consolecb, meter, removeOld, wait) File "/usr/lib/python2.6/site-packages/virtinst/Guest.py", line 726, in _do_install self.domain = self.conn.createLinux(install_xml, 0) File "/usr/lib64/python2.6/site-packages/libvirt.py", line 1077, in createLinux if ret is None:raise libvirtError('virDomainCreateLinux() failed', conn=self) libvirtError: internal error unable to start guest: bind(unix:/var/run/libvirt/qemu/RATS.monitor): Permission denied qemu: could not open monitor device 'unix:/var/run/libvirt/qemu/RATS.monitor,server,nowait' More chown'ing needed? Yeha, ignore my suggestion - its not worth the hassle of chown'ing stuff - put it back to qemu:qemu. Mark has a patch in libvirt for rawhide already.... (In reply to comment #4) > libvirtError: internal error unable to start guest: > bind(unix:/var/run/libvirt/qemu/RATS.monitor): Permission denied > qemu: could not open monitor device > 'unix:/var/run/libvirt/qemu/RATS.monitor,server,nowait' virt-install is working fine for me now with: libvirt-0.7.0-2.fc12.x86_64 qemu-kvm-0.10.91-0.4.rc1.fc12.x86_64 selinux-policy-3.6.26-6.fc12.noarch python-virtinst-0.500.0-1.fc12.noarch if this "could not open monitor device" error persists for you, please open a new bug f12-alpha tag request: https://fedorahosted.org/rel-eng/ticket/2051 * Thu Aug 6 2009 Mark McLoughlin <markmc> - 0.7.0-2 - Make sure qemu can access kernel/initrd (bug #516034) - Set perms on /var/lib/libvirt/boot to 0711 (bug #516034) |