How to perform netinstall on VDX 6740 and 6940 via USB?
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Steps for repairing: vdx reboot loop, vdx boot loop, vdx corrupt filesystem, vdx corrupt file system, vdx corrupt compact flash, vdx reboot loop after upgrade
Starting with NOS 6.x, firmwarecleaninstall is no longer a reliable method to recover switches. So, the preferred method now is to use netinstall.
The netinstall process will re-partition and format the switch's compact flash. So, all existing data on the local switch's compact flash will be erased!
Netinstall will install the firmware like a new switch. This can be useful when a switch is experiencing the following issues and it will take too long to fix manually:
A non-Brocade branded USB may work for this, but limited testing has been done. A Brocade-branded USB (one which was shipped with VDX switches) is preferred and have been confirmed to will work for the netinstall process.
After entering the bootprom, boot images will need to be loaded from the USB formatted with an EXT2 filesystem in order to boot into the recovery environment. To format the USB with EXT2 in Windows, the following will be needed:
The specific items required for:
These items will need to be downloaded before proceeding with the steps below for the netinstall process.
NOTE: If using a large USB stick larger than 4GB, format the USB to be 2-4GB to reduce formatting time