Attaching to a Console with the Grub Boot Loader
Troubleshooting E-7
E.12 CD-ROM Image Not Found
If you create a paravirtualized or hardware virtualized guest using a configuration file,
and the CDROM image cannot be found during the installation, you may have the IDE
devices in the incorrect order. Putting the IDE devices in order fixes this problem.
Check that the disk = [ ... ] parameter is defined as hdc:cdrom and is included
before hda, otherwise the usual boot='dc' configuration fails to find the CDROM
image.
E.13 Firewall Blocks NFS Access
Oracle VM Server blocks NFS access from any external computer (or guest) by default.
This may cause problems when trying to create a guest using an NFS connection. To
resolve this, disable the firewall with the following command:
# service iptables stop
E.14 Migrating Domains
You cannot migrate domains on computers with hardware that is not identical. To
migrate a domain, you must have hardware that is the same make and model. You
must also have the same Oracle VM Server release.
E.15 Attaching to a Console with the Grub Boot Loader
Tracking down startup problems with a hardware virtualized guest may be difficult
because you may not be able to attach a console using the xm console command. To
workaround this problem, you can include a console in the guest’s Grub boot loader,
and connect to a console during boot.
To include a console in the Grub boot loader, add the following lines before the first
"title ..." line in the /etc/grub.conf file:
serial --unit=0 --speed=9600 --word=8 --parity=no --stop=1
terminal --timeout=10 serial console
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