Ticket #9109 (closed enhancement: fixed)
There are only 2 serial ports available per virtual machine
| Reported by: | aminm | Owned by: | |
|---|---|---|---|
| Priority: | major | Component: | other |
| Version: | VirtualBox 4.0.8 | Keywords: | serial port |
| Cc: | Guest type: | Linux | |
| Host type: | Windows |
Description (last modified by frank) (diff)
It seems that VirtualBox cannot support more than 2 serial ports per virtual machine. This limitation severly hampers the usefulness of VirtualBox for my applications. I run virtualized fax servers that are portable across OSs and connect to external modems through mapped serial ports. For a typical 4 or 8 line fax board, this means I cannot scale the application to fully utilize the available hardware. As far as I know only VMWare supports unlimited serial ports per VM among the competition.
Change History
comment:2 Changed 3 years ago by Netika
Hello,
has anyone found any workaround ? I'm using VirtualBox as fax server too, and the only way I found is to install a second virtual machine to connect additionnal modems...
I have modems and can help for testing.
comment:3 Changed 22 months ago by Maxim-Allen Mukhin
Hello, I have stumbled at this limitation in version 5.0.12 (r104815). Likewise need more than 2 serial ports. Using serial ports for microcontroller development.
Hi Aminm
Did you ever find a solution for this issue with virtualbox
"It seems that VirtualBox cannot support more than 2 serial ports per virtual machine. This limitation severly hampers the usefulness of VirtualBox for my applications. I run virtualized fax servers that are portable across OSs and connect to external modems through mapped serial ports. For a typical 4 or 8 line fax board, this means I cannot scale the application to fully utilize the available hardware. As far as I know only VMWare supports unlimited serial ports per VM among the competition. "