I am trying to set up a test kvm virtual machine on a core2 quad system. I have managed to thread my way through bridging eth0 and I have a CentOS-5.4 dvd iso prepared.
Using virt-manager, when I try and add a new guest then I get the error reproduced below. Now, I know that I can 'fix' this by building a local mod via audit2allow and installing via semodule. However, I cannot seem to find this particular problem when I Google for it. Therefore, it seems likely that I have done something wrong rather than having encountered a bug.
Does anyone have any suggestions as to what step I may have missed in setting up a kvm guest? All I have done so far is:
Install qemu. Set libvirtd to start at boot. Bridge eth0 to br0 via customs ifcfg-X scripts in /etc/sysconfig/network-scripts. Run virt-manager. Add a new guest.
Summary:
SELinux is preventing qemu-system-x86 (qemu_t) "read" to rtc (clock_device_t).
Detailed Description:
SELinux denied access requested by qemu-system-x86. It is not expected that this access is required by qemu-system-x86 and this access may signal an intrusion attempt. It is also possible that the specific version or configuration of the application is causing it to require additional access.
Allowing Access:
Sometimes labeling problems can cause SELinux denials. You could try to restore the default system file context for rtc,
restorecon -v 'rtc'
If this does not work, there is currently no automatic way to allow this access. Instead, you can generate a local policy module to allow this access - see FAQ (http://fedora.redhat.com/docs/selinux-faq-fc5/#id2961385) Or you can disable SELinux protection altogether. Disabling SELinux protection is not recommended. Please file a bug report (http://bugzilla.redhat.com/bugzilla/enter_bug.cgi) against this package.
Additional Information:
Source Context system_u:system_r:qemu_t:SystemLow-SystemHigh Target Context system_u:object_r:clock_device_t Target Objects rtc [ chr_file ] Source qemu-system-x86 Source Path /usr/bin/qemu-system-x86_64 Port <Unknown> Host inet02.hamilton.harte-lyne.ca Source RPM Packages qemu-0.9.0-4 Target RPM Packages Policy RPM selinux-policy-2.4.6-255.el5_4.1 Selinux Enabled True Policy Type targeted MLS Enabled True Enforcing Mode Enforcing Plugin Name catchall_file Host Name inet02.hamilton.harte-lyne.ca Platform Linux inet02.hamilton.harte-lyne.ca 2.6.18-164.el5 #1 SMP Thu Sep 3 03:28:30 EDT 2009 x86_64 x86_64 Alert Count 1 First Seen Mon 09 Nov 2009 06:28:32 PM EST Last Seen Mon 09 Nov 2009 06:28:32 PM EST Local ID d8ca7ab9-f135-4700-a515-c7b8efba1e27 Line Numbers
Raw Audit Messages
host=inet02.hamilton.harte-lyne.ca type=AVC msg=audit(1257809312.343:21): avc: denied { read } for pid=4166 comm="qemu-system-x86" name="rtc" dev=tmpfs ino=796 scontext=system_u:system_r:qemu_t:s0-s0:c0.c1023 tcontext=system_u:object_r:clock_device_t:s0 tclass=chr_file
host=inet02.hamilton.harte-lyne.ca type=SYSCALL msg=audit(1257809312.343:21): arch=c000003e syscall=2 success=no exit=-13 a0=4d8b3c a1=0 a2=0 a3=8 items=0 ppid=1 pid=4166 auid=4294967295 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=(none) ses=4294967295 comm="qemu-system-x86" exe="/usr/bin/qemu-system-x86_64" subj=system_u:system_r:qemu_t:s0-s0:c0.c1023 key=(null)