Install ASR9k IOS from ROMMON via TFTP

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  • Connect to the Console Port
  • Get to ROMMON prompt (sometimes you have to hit CTRL-C whan asked)
  • Connect Mgmt0 port to the network
  • Place the vm File of your ASR IOSXR distribution (e.g. asr9k-mini-px.vm-4.3.0, normally found within the tar file of your distribution) onto your TFTP server
  • Issue the following commands from the ROMMON promt, line by line (bold values may have to be replaced acording to your environment):
unset BOOT
unset TFTP_FILE
sync
unset BOOT_DEV_SEQ_OPER
unset MIRROR_ENABLE
sync
priv
diswd
IP_ADDRESS=192.168.1.241
IP_SUBNET_MASK=255.255.255.0
DEFAULT_GATEWAY=192.168.1.254
TFTP_RETRY_COUNT=4
TFTP_TIMEOUT=6000
TFTP_CHECKSUM=1
TFTP_SERVER=192.168.1.11
TFTP_MGMT_INTF=0
TFTP_BLKSIZE=1400
TURBOBOOT=on,disk0,format
sync
  • Now, boot and install via TFTP
boot tftp://192.168.1.11/asr9k-mini-px.vm-4.3.0
  • Wait without hitting any key until the ASR reboots. May take quite long, 30 mins or so.
  • Type show install active and check the path starts with disk0: and not mem:. If it starts with mem:, you have to repeat the whole procedure.
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