[RHEL5.6] KVM: guest recognizes already detached disk

Solution Verified - Updated -


  • If some disks are online attached/detached to a RHEL5.x guest OS before the guest OS loads acpiphp.ko module, the guest OS recognizes those already detached disks at the next online disk attachment time.
  • Such (ghost) disks can't be detached from the guest OS until power off the guest OS. (Reboot doesn't work.)


  • Red Hat Enterprise Linux 5.6 
    • kernel-2.6.18-238.el5 
    • kmod-kvm-83-224.el5 
    • kvm-83-224.el5 
    • libvirt-0.8.2-15.el5

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