[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Qemu-devel] [Bug 1223467] Re: Unable to use USB as hda in Windows
From: |
Will |
Subject: |
[Qemu-devel] [Bug 1223467] Re: Unable to use USB as hda in Windows |
Date: |
Mon, 14 Apr 2014 14:37:51 -0000 |
I can confirm the same bug. I am not building from source, but rather
using the unofficial Windows binaries linked to by Qemu.
http://wiki.qemu.org/Links
I'm running as Administrator on Win8.1 x86_64
qemu-system-i386.exe -L . -hda \\.\PhysicalDrive3
qemu-system-i386.exe: -hda \\.\PhysicalDrive3: Block protocol 'host_device'
doesn't support the option 'filename'
qemu-system-i386.exe: -hda \\.\PhysicalDrive3: could not open disk image
\\.\PhysicalDrive3: Invalid argument
I see this error in the 1.51, 1.53, and 1.60 builds from a couple
different sources
PhysicalDrive3 is a USB device that's visible in the Windows Disk
Management Snap-In. I see the activity light on the drive blink when
running this command.
I've found some older Qemu binaries from various random sources
https://code.google.com/p/kqemu-portable-win/ and they seem to be able
to access physical devices without issue, though they also seem to have
other problems of their own...
--
You received this bug notification because you are a member of qemu-
devel-ml, which is subscribed to QEMU.
https://bugs.launchpad.net/bugs/1223467
Title:
Unable to use USB as hda in Windows
Status in QEMU:
New
Bug description:
I built qemu 1.6.0 from source in MinGW (and all dependents not available
with mingw-get)
The command line:
qemu-system-i386.exe -m 1024 -hda \\.\PhysicalDrive1 -L pc-bios
or
qemu-system-x86_64.exe -m 1024 -hda \\.\PhysicalDrive1 -L pc-bios
(or the *w.exe equivalents)
reports in stderr.txt:
qemu-system-i386.exe: -hda \\.\PhysicalDrive1: Block protocol 'host_device'
doesn't support the option 'filename'
qemu-system-i386.exe: -hda \\.\PhysicalDrive1: could not open disk image
\\.\PhysicalDrive1: Invalid argument
I have also found this bug in 1.5 but not in 1.4
Some Help:
The code in Qemu is a bit beyond me at 1am, but I was able to determine the
root cause seems to be that block.c is becoming confused about referring to a
file but not having a file name. I have been able to work around this by
changing line 860 of block.c from: "if (qdict_size(options) != 0) {" to "if
(qdict_size(options) != 0 && !is_windows_drive(filename)) {"
But I don't think this is a good solution (it is assuming that nothing
else could be wrong), and I can't be sure that I'm not masking some
real issue.
FWIW; Build is on XP, but execution is on Win7.
Thanks.
To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/1223467/+subscriptions
- [Qemu-devel] [Bug 1223467] Re: Unable to use USB as hda in Windows,
Will <=