Your system is crashed at the loader prompt. The general kb for the ex crash is here tagged to the loader prompt section.
https://kb.juniper.net/InfoCenter/index?page=content&id=KB20464#loaderThere are two usb recovery options linked there. Which one are you following and at which step do you have an issue?
------------------------------
Steve Puluka BSEET - Juniper Ambassador
IP Architect - DQE Communications Pittsburgh, PA (Metro Ethernet & ISP)
http://puluka.com/home------------------------------
Original Message:
Sent: 01-14-2022 07:03
From: Anonymous User
Subject: Error after update - cannot load kernel
This message was posted by a user wishing to remain anonymous
Hi all!
Unfortunately i'm stucked in this condition after a failed upgrade on my ex2300-48p
=> boot
SF: Detected MX25L6405D with page size 256 Bytes, erase size 64 KiB, total 8 M
iB
device 0 offset 0x3c0000, size 0x10000
SF: 65536 bytes @ 0x3c0000 Read: OK
## Checking Image at 61000000 ...
Legacy image found
Image Name: Juniper U-Boot Script File
Image Type: ARM Unknown OS Script (uncompressed)
Data Size: 1900 Bytes = 1.9 KiB
Load Address: 00000000
Entry Point: 00000000
Contents:
Image 0: 1892 Bytes = 1.8 KiB
Verifying Checksum ... OK
## Executing script at 61000000
Setting bus to 0
SF: Detected MX25L6405D with page size 256 Bytes, erase size 64 KiB, total 8 M
iB
device 0 offset 0x140000, size 0x140000
SF: 1310720 bytes @ 0x140000 Read: OK
7313fffc: 5a6d1cc7 ..mZ
crc32 for 73000000 ... 7313ffff ==> c71c6d5a
Total of 1 word(s) were the same
starting USB...
USB0: USB EHCI 1.00
scanning bus 0 for devices... 4 USB Device(s) found
scanning usb for storage devices... 2 Storage Device(s) found
SF: Detected MX25L6405D with page size 256 Bytes, erase size 64 KiB, total 8 M
iB, mapped at 00000088
## Starting application at 0x00000074 ...
Consoles: U-Boot console
FreeBSD/armv6 U-Boot loader, Revision 1.2
(fbsd-builder@svl-bsdx-05.juniper.net, Fri Aug 26 11:13:00 PDT 2016)
DRAM: 2048MB
Number of U-Boot devices: 3
U-Boot env: loaderdev not set, will probe all devices.
Found U-Boot device: disk
Probing all disk devices...
Checking unit=0 slice=<auto> partition=<auto>... good.
|
can't load 'kernel'
Type '?' for a list of commands, 'help' for more detailed help.
loader> set currdev="disk1s1a"
loader> include /boot/loader.rc
can't open '/boot/loader.rc': no such file or directory
loader>
Even if i plugged my usb as i've seen on many KB it shows no directory
Any suggestion?
Thank you in advance
Gabriele