I followed the OpenWrt installation instructions here as follows:
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Configure an tftp server which is reachable from the switch via Ethernet. The server ip is 192.168.1.88.
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Download the “KERNEL” image from the here and renamed it openwrt-24.10.5-hpe_1920-24g-initramfs.bin (i.e. less than 50 charactrs). The file was copied to the tftp server folder. I tested the tftp server from a different device on the same subnet as the server.
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Connect to the serial port on the front of the switch using an 8P8C RS232 adapter.
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Power on the switch.
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Allow the switch to begin booting its second stage bootloader.
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When prompted Press Ctrl+B to enter extended boot menu..., do-so.
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Select menu item 3 Enter Ethernet SubMenu.
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In the Ethernet SubMenu, select item 5 Modify Ethernet Parameter.
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When prompted Protocol (FTP or TFTP), entered tftp.
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When prompted Load File Name entered openwrt-24.10.5-hpe_1920-24g-initramfs.bin.
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When prompted Target File Name left it unchanged.
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When prompted Server IP Address entered 192.168.1.88.
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When prompted Local IP Address entered 192.168.1.222 (a spare unused IPv4 address on the subnet).
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When prompted Gateway IP Address entered the default.
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Back at the Ethernet SubMenu, select item 1 - Download Application Program To SDRAM And Run.
This results in an Loading...Failed! error, see the serial log below:
===========================<EXTEND-BOOTWARE MENU>===========================
|<1> Boot System |
|<2> Enter Serial SubMenu |
|<3> Enter Ethernet SubMenu |
|<4> File Control |
|<5> Restore to Factory Default Configuration |
|<6> Skip Current System Configuration |
|<7> BootWare Operation Menu |
|<8> Clear Super Password |
|<9> Storage Device Operation |
|<0> Reboot |
============================================================================
Ctrl+Z: Access EXTEND-ASSISTANT MENU
Ctrl+F: Format File System
Ctrl+C: Display Copyright
Enter your choice(0-9): 3
==========================<Enter Ethernet SubMenu>==========================
|Note:the operating device is flash |
|<1> Download Application Program To SDRAM And Run |
|<2> Update Main Application File |
|<3> Update Backup Application File |
|<4> Update Secure Application File |
|<5> Modify Ethernet Parameter |
|<0> Exit To Main Menu |
|<Ensure The Parameter Be Modified Before Downloading!> |
============================================================================
Enter your choice(0-5): 5
==========================<ETHERNET PARAMETER SET>==========================
|Note: '.' = Clear field. |
| '-' = Go to previous field. |
| Ctrl+D = Quit. |
============================================================================
Protocol (FTP or TFTP) :ttp tftp
Load File Name :openwrt-24.10.5-hpe_1920-24g-initramfs.bin
:openwrt-24.10.5-hpe_1920-24g-initramfs.bin
Target File Name :target
:
Server IP Address :192.168.1.88
Local IP Address :192.168.1.222
Gateway IP Address :
==========================<Enter Ethernet SubMenu>==========================
|Note:the operating device is flash |
|<1> Download Application Program To SDRAM And Run |
|<2> Update Main Application File |
|<3> Update Backup Application File |
|<4> Update Secure Application File |
|<5> Modify Ethernet Parameter |
|<0> Exit To Main Menu |
|<Ensure The Parameter Be Modified Before Downloading!> |
============================================================================
Enter your choice(0-5): 1
Loading...Failed!
After much searching and many AI red-herrings, I don't know how to proceed.
I've tried a shorter filename for the initramfs file (initramfs.bin), booted/rebooted many times, and performed a factory reset.
Also, the HPE firmware loaded is JG924A-CMW520-R1114.bin and I have tried in vain to upgrade to the latest OEM firmware of JG924A-CMW520-R1121.bin, but it fails with a "No enough space for uploading the file." error (see below):
Entering Summary in the serial console to confirm the model number yields:
<HPE>summary
Vlan-interface: 1
Select menu option: Summary
IP Method:
IP address:
Subnet mask:
Default gateway:
IPv6 Method:
IPv6 link-local address:
IPv6 subnet mask length:
IPv6 global address:
IPv6 subnet mask length:
IPv6 default gateway:
Mac address: xxxx-xxxx-xxxx
Current boot app is: flash:/jg924a-cmw520-r1114.bin
Next main boot app is: flash:/jg924a-cmw520-r1114.bin
Next backup boot app is: flash:/jg924a-cmw520-r1114_bak.bin
HPE Comware Platform Software
Comware Software, Version 5.20.99, Release 1114
Copyright (c) 2010-2016 Hewlett Packard Enterprise Development LP
HPE 1920-24G Switch uptime is 0 week, 0 day, 0 hour, 1 minute
HPE 1920-24G Switch
128M bytes DRAM
32M bytes Flash Memory
Config Register points to Flash
Hardware Version is REV.A
Bootrom Version is 117
[SubSlot 0] 24GE+4SFP Hardware Version is REV.A
Any suggestions?

