On 04/27/11 17:05, Luiz Capitulino wrote: >> +If a new image file is specified, the new image file will become the >> > +new root image. If format is specified, the snapshot file will be >> > +created in that format. Otherwise the snapshot will be internal! >> > +(currently unsupported). > Sorry for the stupid question, but what's a "new root image"? Also, all > these assumptions seem human features to me, as it can save some typing > and I can poke around to see where the snapshots are stored. > > All arguments should be mandatory in QMP, IMO.
Sorry, but there is absolutely no reason to make all arguments mandatory. Sure it can be done, but the only result is a separate handling function for it, so we got more almost identical, but still different code to maintain. > Finally, what's the expect behavior when -snapshot is used? I'm getting > this: > > (qemu) snapshot_blkdev ide0-hd0 snap-test > Could not open '/tmp/vl.6w8YXA' > (qemu) What type of file system is your /tmp? You need to provide full path to the snapshot file if you don't want it created next to where your qemu binary is being executed. > At first, I don't see why we shouldn't generate the live snapshot, but anyway, > any special behavior like this should be noted in the section called Notes > in the command's documentation. > I don't follow this at all, please elaborate. Jes
