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MT3500 Musical beep sound

Last Updated: Dec 01, 2017 09:56AM PST
Problem: Terminal making "musical" beep sound when power on.  Terminal cannot enter Linux main menu. Displays error below...

uncompressing linux
kmod: faild to exec /sbin /modprodb -s -k scsi_host adapter, errno=2

Problem Description:
When you try to remote image the device and it reboots into linux or manually boot into linux you get above error on the screen and an error tone is played.  

- When try to remote image using snmpadm, it reboots into linux, linux does not complete booting, you get the tone and above error on the screen.
- When you manually select UPDATE ONLY, it begins to boot into linux, linux does not complete booting, you get the tone and above error on the screen.

Cause: USB keyboard conflict with internal wireless card.

Solution: Remove the USB keyboard, and use PS/2 keyboard to enter Linux mode.

Note: Some USB keyboard models work ok on MT3560, and others cause the above problem.  We have seen this on the CLI test rack with CLI USB keyboard occasionally as well.

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