How can I start an NBD client connection during the boot sequence?
I want to have a diskless client setup where the clients use overlayroot. The lower directory/filesystem will be a read-only NFS and the upper directory/filesystem will be an NBD, but I can't seem to get it to create the /dev/nbd0 device at the right time in the boot sequence.
I would prefer to have had the overlayfs on the server and NFS export it, but it seems that overlayfs does not support NFS.
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