Juniper Bootable Compact Flash

Creating a Bootable Compact Flash for Juniper Devices

If you want to create a boot disk to reconfigure a juniper router from scratch, you may want to create a boot disk. Sometimes it is easier to upgrade junos by formatting and reloading the old config if you are upgrading from an old release which requires a step by step upgrade through major releases.

There are various ways to create a CF card, but the easiest way i found to create CF card is:

• Download physdiskwrite-gui from   http://m0n0.ch/wall/physdiskwrite.php
• Download “install-media” junos from Juniper website (be careful, not install-package version!!)

Select the CF card in program and write the junos install-media image to CF as raw.

 

 

If you reboot a Juniper with a bootable CF card created as explained, system will be booted from CF card and will ask you if you want to reconfigure your router from scratch.