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[Qemu-devel] [Bug 1196498] Re: Failed to create COM port in Windows Gues
From: |
Thomas Huth |
Subject: |
[Qemu-devel] [Bug 1196498] Re: Failed to create COM port in Windows Guest VM |
Date: |
Thu, 08 Feb 2018 18:19:17 -0000 |
Triaging old bug tickets... can you still reproduce this issue with the
latest version of QEMU? Or could we close this ticket nowadays?
** Changed in: qemu
Status: New => Incomplete
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https://bugs.launchpad.net/bugs/1196498
Title:
Failed to create COM port in Windows Guest VM
Status in QEMU:
Incomplete
Bug description:
Hi,
Tried to establish virtual serial connection between two Windows Guest
VMs(Windows 2008 Server).
As it mentioned under the link,
http://www.linux-kvm.org/page/WindowsGuestDrivers/UpdatedGuestDebugging
Started VM using the below command with serial device as TCP port.
# qemu-system-x86_64 -smp 1 -enable-kvm -m 512 -boot c -serial
tcp:127.0.0.1:50001,server,nowait -hda
/mnt/sda5/var/lib/libvirt/images/win2008host.img
And started WinDbg in the Windows VM, with serial port:COM1 and
Baudrate:115200.
It throws the error "Could not start kernel debugging using
com:port:COM1,baudrate:115200 parameters, Win32 error 0n2. The system
cannot find the file specified."
Checked under Device Manager and there is no COM1 port.
Does the -serial tcp:127.0.0.01:50001 creates COM1 port? I doubt.
If no what are the parameters I should pass to WinDbg for serial port?
Please help me how to solve this issue.
Thanks
Venkatesh
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