Not able to start Xen VM

Solution Verified - Updated -


  • Getting the following error while trying to start a XEN VM:
# virsh start VM_name
error: Failed to start domain VM_name
error: POST operation failed: xend_post: error from xen daemon: (xend.err 'Error creating domain: I need 1048576 KiB, but dom0_min_mem is 262144 and shrinking to 262144 KiB would leave only 529240 KiB free.')


Red Hat Enterprise Linux (RHEL) 5.10

Subscriber exclusive content

A Red Hat subscription provides unlimited access to our knowledgebase, tools, and much more.

Current Customers and Partners

Log in for full access

Log In

New to Red Hat?

Learn more about Red Hat subscriptions

Using a Red Hat product through a public cloud?

How to access this content