Bug#474217: initramfs-tools: /etc/lvm.conf needed in initrd
while creating an initrd the /etc/lvm.conf is not copied into the
initrd, this can result in a pretty ugly behaviours as the initrd will
activate all VG/LV it can find. For example if you boot from SAN all
LUNs will show up in the initrd, including those which may be part of a
cluster and should not be activated (yet), or those which are supposed
to be passed into a guest OS of your favourite virtualization solution.
The listed reasons are just a few why you probably don't want to
activate all LVs, and why you usually configure lvm in lvm.conf -
ignoring this file can result in a severe loss of data. Of course,
copying the file only makes sense if it was modified.