Attaching guestfish to live domains

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Attaching guestfish to live domains is actually pretty nice. Why? Why is this different from the normal mode? Well, normally guestfish spawns a generic appliance to inspect a disk image. The runtime context is thus this appliance. If you connect to to a running (libvirt) domain, then you run the commands in teh context of the domain. This can make a difference if you want to i.e. introspect the runtime behavior of an domain, like getting some network informations.

It works nicely in Fedora, if you install a VM with

virt-install … --channel="unix,target_type=virtio,name=org.libguestfs.channel.0"

Inside the guest you need to ensure to have libguestfs-live-service installed.

But why the heck doesn’t this work on CentOS!? Because the libguestfs-live-service is not available there.

::: {#footer} [ May 2nd, 2016 10:41am ]{#timestamp} [fedora]{.tag} [libvirt]{.tag} [libguestfs]{.tag} :::