10-01-2018 03:08 AM - edited 03-08-2019 04:16 PM
switch: format flash:
Are you sure you want to format "flash:" (all data will be lost) (y/n)?y
Filesystem "flash:" not formatted -- invalid argument
10-01-2018 07:11 AM
I am not sure you able to do that, i believe i tried and it failed for me too.
1. Boot from usbflash0: and after successful boot from usbflash0:
2. Format flash:
3. Copy the IOS XE what you looking to upgrade from usbflash0: to flash:,
4. change the "boot system switch all flash:version.bin.
5.reboot
Make sure you have back of the config to restore.
08-23-2022 10:27 AM
Emergency install from usb will format the flash.
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