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Re: [Xen-devel] blktap2: need more than 3 values to unpack
The tap:aio:/pathto/file.img syntax that you're using in your config was changed before blktap2 was introduced. tap:tapdisk:aio:/pathto/file.img is apparently the correct syntax now, though the README didn't get updated to reflect this. Our blktap2 documentation is no better - I'll try to remedy that this week.
If you're still seeing this error: "Error: 'file' object has no attribute 'find'"Then I might be able to help, but I'm not sure how to reproduce it. If you send a log file and config for this latter error I'll take a look. Yang seems to be reporting the same thing in another thread.
--Dutch On Mon, 1 Jun 2009, Dan Magenheimer wrote:
Hmmm... trying blktap2 for the first time, using 19682. I had thought that the syntax hadn't changed, but I am getting what appears to be a parsing error on my vbd line. "ValueError: need more than 3 values to unpack" Thinking maybe that "w!" was the culprit, I changed it to "w" with no change in result. Looking at the python code that generated the error, I tried to figure out the syntax by experimentation but without luck. I tried: tap:tapdisk:aio:/pathto/file.img but got "Error: 'file' object has no attribute 'find'" To see if I could use the old blktap, I tried tap:tapdisk:ioemu:/pathto/file.img but got the dreaded "Error: Device 768 (tap) could not be connected. Hotplug scripts not working" Am I missing something in the syntax for blktap2? Is there a how-to or readme I didn't find? Or is there some required dependency I don't know about that is missing? I thought maybe I had a bad install, so rebuilt and reinstalled with the same result. xend.log and config file attached. Thanks, Dan P.S. I am trying blktap2 because both blktap and file-backed fail. Blktap sometimes reads garbage from the file and
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