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Date: Wed, 2 Jul 2008 22:26:07 +0100
From: Thiemo Seufer <ths@networkno.de>
Subject: Re: [Qemu-devel] [patch 2/5] qemu-nbd: merge NBD client/server
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To: qemu-devel@nongnu.org
Cc: Laurent.Vivier@bull.net

Laurent.Vivier@bull.net wrote:
> This patch allows to connect directly a disk image file to an NBD
> device. It introduces the use of a unix socket (instead of inet).
> 
> - To connect a file to a device:
> 
> # qemu-nbd --connect=/dev/nbd0 my_disk.qcow2
> 
> Then you can see directly your disk (no need of nbd-client):
> 
> # fdisk -l /dev/nbd0
> 
> Disk /dev/nbd0: 4294 MB, 4294967296 bytes
> 255 heads, 63 sectors/track, 522 cylinders
> Units = cylinders of 16065 * 512 = 8225280 bytes
> 
>      Device Boot      Start         End      Blocks   Id  System
> /dev/nbd0p1   *           1         492     3951958+  83  Linux
> /dev/nbd0p2             493         522      240975    5  Extended
> /dev/nbd0p5             493         522      240943+  82  Linux swap /
> Solaris
> 
> - To disconnect the file from the device:
> 
> # qemu-nbd --disconnect /dev/nbd0
> 
> Changelog:
> - v2: call show_parts() from client and avoid the sleep(1). Thank you to
> Avi and Anthony. Include my cleanup patch and comments from Carlo
> Marcelo Arenas Belon.
> - v3: allow to specify unix socket name with "--socket" and update 
> documentation.

There's still a call to sleep() in this patch.


Thiemo