[Nbd] Server immediately closes connection
- To: nbd-general@lists.sourceforge.net
- Subject: [Nbd] Server immediately closes connection
- From: "Robin Van Loock" <rvloock@...17...>
- Date: Mon, 7 Jan 2008 20:21:09 +0100
- Message-id: <15ec8ae10801071121r1a1a6d7fu65e1fcaed83e2aa@...18...>
Hey everybody,
Some background first. I got myself one of those Western Digital MyBooks to make some backups on. The thing runs on an AMR processor (nothing fast), has a disk, and has ethernet on it. It runs a custom-built
2.6.17 kernel (uname reports 2.6.17.14 #1 PREEMPT Mon Mar 26 12:36:33 BST 2007 armv5tejl GN).
Now I wanted to export its main shared partition (empty by default, and I removed it from fstab and it's unmounted) by nbd, so I can use LUKS from my main box through nbd and make secure encrypted backups on the disk, without the disk having to know anything about encryption (keys) and such.
I compiled nbd 2.9.9 on the MyBook succesfully, and tried starting a server in the following settings:
- standalone for a temp file.
- standalone for a block device (/dev/md4)
- through inetd for a temp file.
- through inetd for a block device (/dev/md4).
My main box is a gentoo box, and I'm currently running 2.6.22 on it (gentoo build). I loaded the nbd module, compiled nbd 2.9.9 as well, and tried connecting to the MyBook.
Everytime I do that, in each of the settings above, I get the following:
# /usr/local/sbin/nbd-client 192.168.1.164 99 /dev/nbd0
Negotiation: Error: Server closed connection
It is the correct port and IP (I get connection refused if I shut down nbd-server on the MyBook or inetd), but it always gives this message.
I also tried connecting to the nbd-server with nc, but it also immediately returns, so I don't think it's a problem with the client setup. The daemon on the MyBook keeps running.
If anyone has any thoughts on how to solve this I would greatly appreciate it (or any other ideas of accomplishing what I'm trying to do).
Thanks in advance,
Greets,
Robin
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