Dell EMC Networking PowerConnect 5500 management access lost while copying Boot software (Boot PROM)
Summary: Dell EMC Networking PowerConnect 5500 management access lost while copying Boot software (Boot PROM)
Symptoms
While copying boot software (Boot PROM) in a PowerConnect 5500 switch, the copy operation is hung and we loose management access to the switch. The only recovery method is to reboot.
This article explains the reason and solution to this issue. This document is applicable to Dell Power Connect 5524/5548/5524P/5548P switches in standalone or stack.
Table of content
How to check boot software version
What if my boot software is latest version
What if my boot software is Older
Reason
If the Boot PROM (Boot software) version is already present in the switch, we do not upload it again. Doing so, may cause the management access to go unresponsive.
For example, if Boot Software is already 1.0.0.14, and we are trying to copy it again to switch, we might lose management access.
Check the release notes added along with the firmware zip file for the appropriate firmware version.
How to check boot code version
Use the command "show version" to verify bootcode version
Sample output
console#show version
Unit S W version Boot version HW version
------------------- ------------------- ------------------- ----------------
1 4.1.0.1 1.0.0.14 00.00.02
* 1.0.0.14 is bootcode version
What if my boot software is already in latest version?
Proceed with Firmware copying and upgrade. Skip copying Boot Software
What if my boot software is Older?
Proceed with Firmware and Boot Software upgrade
Firmware and Bootcode
Below table mentions some firmware version and their corresponding Boot software (Boot PROM)
| Firmware Version |
Boot software (Boot PROM) |
| 4.1.0.22 |
1.0.0.14 |
| 4.1.0.21 |
1.0.0.14 |
| 4.1.0.20 |
1.0.0.14 |
| 4.1.0.19 |
1.0.0.14 |
| 4.1.0.16 |
1.0.0.14 |
| 4.1.0.15 |
1.0.0.14 |
| 4.1.0.12 |
1.0.0.14 |
| 4.1.0.10 |
1.0.0.14 |
| 4.1.0.8 |
1.0.0.14 |
| 4.1.0.5 |
1.0.0.14 |
| 4.1.0.1 |
1.0.0.14 |
| 4.0.1.12 |
1.0.0.12 |
*If a newer Firmware is released, check the release notes and find the appropriate Boot Prom Version.