motorhead/qemu
1
0
Fork 0
mirror of https://github.com/Motorhead1991/qemu.git synced 2025-08-09 10:34:58 -06:00
Code Issues Projects Releases Packages Wiki Activity Actions

qemu-nbd: support internal snapshot export

Browse source 
Now it is possible to directly export an internal snapshot, which
can be used to probe the snapshot's contents without qemu-img
convert.

Signed-off-by: Wenchao Xia <xiawenc@linux.vnet.ibm.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
This commit is contained in:
Wenchao Xia 2013-12-04 17:10:55 +08:00 • committed by Stefan Hajnoczi
parent 7b4c4781e3
commit 8c116b0e41
4 changed files with 77 additions and 3 deletions
Download patch file Download diff file Expand all files Collapse all files

8
qemu-nbd.texi
View file

@ -27,7 +27,13 @@ Export QEMU disk image using NBD protocol.
@item -P, --partition=@var{num}
only expose partition @var{num}
@item -s, --snapshot
use snapshot file
use @var{filename} as an external snapshot, create a temporary
file with backing_file=@var{filename}, redirect the write to
the temporary one
@item -l, --load-snapshot=@var{snapshot_param}
load an internal snapshot inside @var{filename} and export it
as an read-only device, @var{snapshot_param} format is
'snapshot.id=[ID],snapshot.name=[NAME]' or '[ID_OR_NAME]'
@item -n, --nocache
@itemx --cache=@var{cache}
set cache mode to be used with the file. See the documentation of