K2Flag

Okay, so I changed out the APC UPS for a new one along with a new cable. And it works.......? The other UPS was brand new out of the box also. I'm going to do some more testing today on both of them to see what's going on.

i used ttS1 because that is what worked with a windows server that I loaded as a test. So i assume that is the port that is open with the ESXi physical host.

I get... vi-admin@localhost:~> dmesg | grep ttyS [ 0.321953] serial8250: ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A [ 0.322451] serial8250: ttyS1 at I/O 0x2f8 (irq = 3) is a 16550A [ 0.323242] 00:09: ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A [ 0.323761] 00:0a: ttyS1 at I/O 0x2f8 (irq = 3) is a 16550A vi-admin@localhost:~>

Still unable to get the vMA to see the serial port. Is there a linux command i can run to see if the port is even active on the vMA?

Thank you for the reply. The file that installed on the vMA was pcbe910_linux.tar.gz

Hello dheg, Thank you for this post. It seems to come right at the right time for me. I am currently working on getting Esxi5 working with a APC1500 though serial. I have done all of your steps to a T but I can't get the vMA to see the APC. I have enabled Passthough on ESXi. I am working with a Dell T420. Am I choosing the wrong options? During the install? I am choosing RJ45. Which is right. Its serial to the server and RJ45 to the APC Then it asks are you connected to a share UPS, Interface Expander or in Simple Signalling mode? I choose 1) Yes Then installs Then asks for a username and password. After that it asks Select the Signal Type i choose 1) Smart Then Select the Serial Port I've picked both on 2 different installs neither work. but i pick ([2] /dev/ttyS1) since that is the one that works with windows vm on this esxi install. I have even tried 3. Other and put in what ESXi says for the vMA /dev/char/serial/uart1 I still can't connect. Device Communications Not Established Any ideas? Thank you.