Life is a Roller Coaster

July 30, 2008

Installing Junos Bootable on Removable Media (USB/PCMCIA etc)

Filed under: Technical section — adisubrata @ 12:43 AM

This post describes how to fill USB devices with Junos software. In Next Generation RE, upgrade from USB devices is available. You must have at least RE-A-1000 or RE-A-2000 to perform upgrade from USB devices.

Below is the simple manual:

The device name is /dev/rda0 instead of /dev/rad3.
optimus@prime> start shell
Log into directory where the install media file is (ie: /var/tmp/)
optimus@prime% cd <directory>
Issue the following commands:
optimus@prime% dd if=/dev/zero of=/dev/rda0 count=20 ; initialize the media
optimus@prime% dd if=install-media-9.1R2.4-export of=/dev/rda0 bs=64k ;

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For windows user you can use physdiskwrite Utility.

Additional information:

This bundle is used to produce both the PCMCIA boot flash card and the LS-120 boot floppy
to install jinstall-<release-number>-domestic.tgz.
You must have UNIX super-user privileges in order to issue the "dd" commands.

    * LS-120 boot floppy
      To create an LS-120 boot floppy, ftp the image to the router's /var/tmp directory
      and insert an LS-120 disk into the router's drive.  Then, from the UNIX shell
      on your router, change to the /var/tmp directory and issue the following commands:
            dd if=/dev/zero of=/dev/adf0 count=20
            dd if=install-media-<release-number>-domestic of=/dev/adf0 bs=64k
    * PCMCIA boot flash card
      To create a PCMCIA boot flash card, ftp the image to the router's /var/tmp directory
      and insert a PC card into the routers' drive.  Then, from the UNIX shell on your router,
      change to the /var/tmp directory and issue the following commands:
            dd if=/dev/zero of=/dev/ad3 count=20
            dd if=install-media-<release-number>-domestic of=/dev/ad3 bs=64k 

USB boot storage device:

To create a USB boot storage device, ftp the image to the router's /var/tmp directory and
insert a USB storage device into the router's USB port. Then, from the UNIX shell on your
router, change to the /var/tmp directory and issue the following commands:

dd if=/dev/zero of=/dev/da0 count=20

dd if=install-media-8.3R1.5-domestic of=/dev/da0 bs=64k

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