红帽全球峰会33.12. Modifying the Xen hypervisor
Managing host systems often involves changing the boot configuration file
/boot/grub/grub.conf. Managing several or more hosts configuration files quickly becomes difficult. System administrators often prefer to use the 'cut and paste' method for editing multiple grub.conf files. If you do this, ensure you include all five lines in the Virtualization entry (or this will create system errors). Hypervisor specific values are all found on the 'xen' line. This example represents a correct grub.conf virtualization entry:
For example, to change the memory entry on your hypervisor (dom0) to 256MB at boot time, edit the 'xen' line and append it with this entry:
'dom0_mem=256M'. This example is the grub.conf with the hypervisor's memory entry modified.
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