Ctrl+C .. you have 10 seconds to push Ctrl-C or Ctrl-] right after “r. done.”

For upgrade to nxos 7 from 6, use this command after TFTP or SCP done

install all nxos bootflash:nxos.7.0.3.I7.10.bin

nexus3k-birou# install all nxos bootflash:nxos.7.0.3.I7.10.bin
Installer is forced disruptive

Verifying image bootflash:/nxos.7.0.3.I7.10.bin for boot variable “nxos”.
[########################################] 100% — SUCCESS

Verifying image type.
[# ] 0%