09-15-2021 10:55 AM
Hi Guys,
I am trying downgrade Nexus 93108TC switch from the current ACI 14.2 firmware to NX-OS 7.0(3)I7(8). I am following steps given in the below document however got stuck at step-6.
From the loader prompt, not able to boot the OS, getting below error. The firmware image is located on the remote Linux server, tftp service is enabled on that.
Could someone tell me what could be the issue?
loader > boot tftp://10.10.10.2/tftpboot/nxos.7.0.3.I7.8.bin
Security Lock
Booting tftp://10.10.10.2/tftpboot/nxos.7.0.3.I7.8.bin
Trying netboot
Filename: /tftpboot/nxos.7.0.3.I7.8.bin
Address: 10.10.10.20
Netmask: 255.255.255.128
Server: 10.10.10.2
Gateway: 10.10.10.1
Filesystem type is tftp, using whole disk
Formed cmdline console=ttyS0,9600n8nn loader_ver="5.43" quiet recovery=1 ksimg=tftp://10.10.10.2/tftpboot/nxos.7.0.3.I7.8.bin
tftp fragment = 0
Boot failed
Error 9: Unknown boot failure
==========================
Tried with boot tftp://10.10.10.2/tftpboot/nxos.7.0.3.I7.8.bin and boot tftp://10.10.10.2/nxos.7.0.3.I7.8.bin
Solved! Go to Solution.
09-16-2021 11:54 AM
Hmm that looks like slow transfer rate. Have you tried loading from USB? Do you get same result?
Cheers,
Sergiu
09-15-2021 10:05 PM
It could be possible that the BIOS version on the switch is not compatible with the image you are trying to load.
Try booting another image - older train release first (6.X), then if still doesn't work try a newer one (newer train release - 9.X)
Stay safe,
Sergiu
09-16-2021 09:59 AM
Thanks for the response. I tired loading one of the NX-OS and now getting below result -
tftp fragment = 0
blksize = 1024
no fragement tsize = 982681088
filemax = 3a928600
.........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................Retry 3: Congestion or cable issue
Retry 4: Congestion or cable issue
Retry 5: Congestion or cable issue
Retry 6: Congestion or cable issue
Retry 7: Congestion or cable issue
Retry 8: Congestion or cable issue
Retry 9: Congestion or cable issue
Vendor info. Expected 1536 Read 0
Boot failed
Error 9: Unknown boot failure
09-16-2021 11:54 AM
Hmm that looks like slow transfer rate. Have you tried loading from USB? Do you get same result?
Cheers,
Sergiu
09-20-2021 04:30 AM
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