virt-rescue lets you run a rescue shell against a virtual machine
(don't run it on a live VM).
# virt-rescue F11x64
Welcome to virt-rescue, the libguestfs rescue shell.
Note: The contents of / are the rescue appliance.
You have to mount the guest's partitions under /sysroot
before you will be able to examine them.
<rescue> /sbin/e2fsck /dev/vg_f11x64/lv_root
<rescue> mount /dev/vg_f11x64/lv_root /sysroot
<rescue> ls /sysroot/
bin dev home lib64 media opt root
selinux sys usr
boot etc lib lost+found mnt proc sbin srv tmp var
<rescue> umount /sysroot
virt-edit lets you edit a file inside a VM (again, not for live VMs):
# virt-edit mydomain /boot/grub/grub.conf
These are or will be in the Fedora libguestfs-tools package, version
(There's a build problem which stops us from building libguestfs in
rawhide at the moment).
Richard Jones, Emerging Technologies, Red Hat http://et.redhat.com/~rjones
virt-top is 'top' for virtual machines. Tiny program with many
powerful monitoring features, net stats, disk stats, logging, etc.