Hi all! I have a slackware64-15.0 linux host running libvirt-11.10.0 with qemu 10.2.2 and a windows XP guest. I'm trying to have the gustes COM1 port redirected to the hosts /dev/ttyUSB0 device. I have not found a direct way of doing this in virt-manager since the only options for a serial device are "Output to a file", "Pseudo TTY" or a "UNIX socket". I have managed to modify the domains XML adding the following
<commandline xmlns:qemu='http://libvirt.org/schemas/domain/qemu/1.0'> <arg value='-chardev'/> <arg value='serial,path=/dev/ttyUSB0,id=hostserial0'/> <arg value='-device'/> <arg value='pci-serial,chardev=hostserial0'/> </commandline>
When I start the VM with this I get an error that says
Could not open '/dev/ttyUSB0': Operation not permitted
I checked the device's permissions which are u+rw,g+rw and qemu is being executed with root permissions, I added o+rw to /dev/ttyUSB0 just in case but got the same error. I also tried with /dev/tty0 but got the same error. Thanks in advance! Best regards, Dave. Sent with Proton Mail secure email.