https://www.juniper.net/documentation/en_US/junos/topics/topic-map/upgrading-bios-and-firmware.html#id-disabling-auto-bios-upgrade-on-srx-series-devices ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":13,"length":152,"key":0}],"data":{}},{"key":"7rrkj","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"f47jf","text":"It states:","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"c3hui","text":" To disable the user inputs at u-boot, boot loader and Junos Kernel boot stage, use the chassis routing-engine bios command as following: ","type":"blockquote","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"3ilh6","text":"user@host# set chassis routing-engine bios uninterrupt","type":"code-block","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"dm3ak","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"7tld5","text":"If the device boots into loader what happens if this is enabled? ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"f9sie","text":"Can you still reboot the device? ","type":"unordered-list-item","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"22jm1","text":"Can you install Junos from file with usb/tftp/etc?","type":"unordered-list-item","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"66d3n","text":"Does it auto reboot here if it stops on boot? Seems to be common occurence after upgrades or just a general reboot of the device.","type":"unordered-list-item","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"aahr3","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"1p2eh","text":"Something of note the documentation give a warning:","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"fuaj0","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"4l4uh","text":" On SRX Series devices, if both set system ports console insecure and set chassis routing-engine bios uninterrupt options are configured, there is no alternative recovery method available in case Junos OS fails to boot and the device might become unusable. ","type":"blockquote","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"dsmca","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}}]}">
Does anyone know what exactly does this do? Why/What scenarios would this be used for?
To disable the user inputs at u-boot, boot loader and Junos Kernel boot stage, use the chassis routing-engine bios command as following:
user@host# set chassis routing-engine bios uninterrupt
If the device boots into loader what happens if this is enabled?
-
Can you still reboot the device?
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Can you install Junos from file with usb/tftp/etc?
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Does it auto reboot here if it stops on boot? Seems to be common occurence after upgrades or just a general reboot of the device.
Something of note the documentation give a warning:
On SRX Series devices, if both set system ports console insecure and set chassis routing-engine bios uninterrupt options are configured, there is no alternative recovery method available in case Junos OS fails to boot and the device might become unusable.