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  • 1.  Can't load kernel

    This message was posted by a user wishing to remain anonymous
    Posted 12-15-2021 09:41
    This message was posted by a user wishing to remain anonymous

    Hi all!

    Unfortunately i'm stucked in this condition after a failed upgrade

    => 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



  • 2.  RE: Can't load kernel

     
    Posted 12-16-2021 05:56
    I assume you are trying to use this kb instructions to recover.

    https://kb.juniper.net/InfoCenter/index?page=content&id=KB33842

    Which step are you running into the problem and what is on the screen?

    ------------------------------
    Steve Puluka BSEET - Juniper Ambassador
    IP Architect - DQE Communications Pittsburgh, PA (Metro Ethernet & ISP)
    http://puluka.com/home
    ------------------------------



  • 3.  RE: Can't load kernel

    This message was posted by a user wishing to remain anonymous
    Posted 12-16-2021 12:23
    This message was posted by a user wishing to remain anonymous

    Hi Steve, thanks for you reply

    i'm stucked at point 5

    Confirm 'loader.rc'is on the USB (to make sure the bootable USB was properly created):
    loader> ls /boot /boot

    When i try :              "ls /boot"
    i get :          "can't open /boot, no such file or directory"

    I tried with different usb key (32Gb and 16Gb hard drive) and also i followed this KB27255 but with no results

    Gabriele




  • 4.  RE: Can't load kernel

    Posted 12-16-2021 12:23

    Hi Steve, and thank you for your reply

    Step 5 is my stuck point

    I always receive 

    "can't open boot, no such file or directory"

    Gabriele



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