nbdtab systemd-mark about nbd

[yoe]

Well. It's a bug, but in the documentation.

It currently says "every option", but what it should say is "every option that can be used to set up a device". The -systemd-mark (or -m) option applies to the nbd-client process, not to the device. Similarly, the -list option also can't be specified in the nbdtab file, and that also isn't a bug.

Reading the nbdtab file in initramfs is not usually possible; after all, the nbdtab file is expected to be on the filesystem, not on the initramfs. Such initramfs environments are expected to deal with issuing the -m option themselves; it should not be necessary to specify that in configuration.

Of course, it's possible that you are trying to do something that I didn't think of, in which case I'm happy to be educated. In the absense of that, though, since specifying systemd-mark in nbdtab is highly unlikely to do what is expected, and since that that would cause confusion, I think the correct course of action here is to update the documentation and clarify that not all options make sense in an nbdtab file.

[yoe]

Fixed in the man page now.