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  • 1.  Single-user mode to reset the password

    Posted 10-21-2021 08:30
    My greetings to all!
    I need to reset the password on my device (srx300).
    I press the space bar during OS boot (15.1X49-D150.20.2) and get a prompt (Octeon srx_300_ram#).
    When I try to boot into single-user mode (boot -s) nothing happens (boot - boot default, i.e., run 'bootcmd').

    All articles and manuals say that I get a "loader>" prompt.

    What am I doing wrong?

    Denis Rasskazov

  • 2.  RE: Single-user mode to reset the password

    Posted 10-21-2021 20:14
    Try the alternate method on this link to enter recovery mode.

    Steve Puluka BSEET - Juniper Ambassador
    IP Architect - DQE Communications Pittsburgh, PA (Metro Ethernet & ISP)

  • 3.  RE: Single-user mode to reset the password

    Posted 10-23-2021 08:54
    JunOS 15 has a different way of booting into single user mode. You need to get into u-boot, delete a keyword then perform the "standard" procedure.

    After the device shows USB devices, press Enter or any key (I don't remember which) to get u-boot's => prompt.


    There should be an entry for


    If there is

    setenv boot_unattended

    Now when you see "Hit [Enter] to boot immediately, or space bar for command prompt." press space bar to get the loader> prompt. Here you can issue

    boot -s