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Cannot use Parallel Port Device Through /dev/parport0 or /dev/parport1

Details

I have tried setting the virtual machine up to use /dev/parport0 and /dev/parport1, but the guest operating system still cannot see the device that is attached to the port. What is wrong?

Solution

There are some known issues with ESX Server virtual machines using parallel ports in releases prior to ESX Server 1.5.2 patch 3. If you DO NOT have ESX Server 1.5.2 patch 3 installed, please upgrade to ESX Server 1.5.2, patch 3, and test the parallel port again. All known parallel port issues have been addressed with this release. Once the upgrade is complete, be sure to follow the parallel port configuration instructions found in the ESX Server release notes: www.vmware.com/support/esx15/doc/releasenotes_esx152.html#parallel.Other Solutions If upgrading to patch 3 does not allow you to use the device in question, it is possible that the motherboard of the server in question has an onboard parallel port controller device. On some configurations, there may not be a PORT for said onboard device, which creates confusion. If this is the case, the parallel port device that you are trying to use is actually the second parallel port device on the system. The Service Console code expects to find the second parallel port on /dev/parport16. However, the Service Console insists on using /dev/parport1. To work around this, create a link called "parport16" which points at /dev/parport 1. Do the following at the Service Console command prompt as the root user: rm /dev/parport16 ln -s /dev/parport1 /dev/parport16 When this is done, edit the .cfg file for the virtual machine to use /dev/parport16 instead of /dev/parport1. When you boot the virtual machine, the parallel port should be accessable.

Keywords

1017; urlz; lpt1

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