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Beginner

Nexus ACI mode to NX-OS mode migration using USB issue

Hi,

I install a new Nexus N9K-C93180YC-EX and when i boot it first time, it boot it in ACI mode. I need NX-OS mode but i don't have any APIC. There is no NX-OS image on bootflash as well. Now when i trying to copy the image from USB to bootflash there is no USB detected on switch. Please help me. Output is

shown below. My USB drive file-system is FAT32 

 

(none)# dir usb/usb2/
(none)#
(none)#

(none)# show version
Cisco Nexus Operating System (NX-OS) Software
TAC support: http://www.cisco.com/tac
Documents: http://www.cisco.com/en/US/products/ps9372/tsd_products_support_series_home.html
Copyright (c) 2002-2014, Cisco Systems, Inc. All rights reserved.
The copyrights to certain works contained in this software are
owned by other third parties and used and distributed under
license. Certain components of this software are licensed under
the GNU General Public License (GPL) version 2.0 or the GNU
Lesser General Public License (LGPL) Version 2.1. A copy of each
such license is available at
http://www.opensource.org/licenses/gpl-2.0.php and
http://www.opensource.org/licenses/lgpl-2.1.php

Software
BIOS: version 07.56
kickstart: version 12.2(1n) [build 12.2(1n)]
system: version 12.2(1n) [build 12.2(1n)]
PE: version 2.2(1n)
BIOS compile time: 06/08/2016
kickstart image file is: /bootflash/aci-n9000-dk9.12.2.1n.bin
kickstart compile time: 01/18/2017 03:36:35 [01/18/2017 03:36:35]
system image file is: /bootflash/auto-s
system compile time: 01/18/2017 03:36:35 [01/18/2017 03:36:35]


Hardware
cisco N9K-C93180YC-EX ("supervisor")
Intel(R) Xeon(R) CPU @ 1.80GHz with 24631296 kB of memory.
Processor Board ID FDO21220Q8C

Device name: none
bootflash: 62522368 kB

Kernel uptime is 00 day(s), 00 hour(s), 14 minute(s), 27 second(s)

Last reset at 726000 usecs after Wed Nov 08 11:59:40 2017 UTC
Reason: reset-requested-by-cli-command-reload
System version: 12.2(1n)
Service: PolicyElem Ch reload

plugin
Core Plugin, Ethernet Plugin

7 REPLIES 7
Cisco Employee

Re: Nexus ACI mode to NX-OS mode migration using USB issue

Hi,

 

Have you followed the Converting from ACI to NX-OS procedure? You have to reload then reach the loader > prompt by issuing Ctrl C or Ctrl ] then follow the steps in the document provided.

 

Hope that helps!

 

- Andrea

- Andrea, CCIE #56739 R&S
Beginner

Re: Nexus ACI mode to NX-OS mode migration using USB issue

According to that document before doing the conversion  in loader > prompt i have to copy the NX-OS into the switches Bootflash memory. currently my switch is not connected to APIC and there is no NX-OS image into the switch Bootflash memory. In (none)#  prompt I tried to copy the file from USB but no file is showing. for your information same usb work in my another nexsus ACI mode switch  model N9K-C9336PQ.      

Contributor

Re: Nexus ACI mode to NX-OS mode migration using USB issue

Check out this following link. I've used it before and worked pretty well.
http://vedtechnotes.blogspot.com/2015/03/converting-nexus-9000-from-aci-to-nxos.html

Have to copy the image to the boot flash first with
copy usb/usb1/n9000-dk9.6.1.2.I3.4.bin bootflash/
Beginner

Re: Nexus ACI mode to NX-OS mode migration using USB issue

I try to do this step as per this blog but unfortunately in my cisco nexus switch (N9K-C93180YC-EX ) there is no usb in /usb directory but when i insert the usb sticks usb2 is shown under /usb (usb/usb2), when i tried to copy the image from /ub/usb2 now file found, i also tried the command dir /usb/usb2 but know file shown, i tried with several different pen-drive but the result is same. for your information my pen-drive is FAT32 formatted and it work fine in Cisco nexus N9K-C9336PQ Spine switch. files are appear there  under /usb/usb1.

Contributor

Re: Nexus ACI mode to NX-OS mode migration using USB issue

Super weird, maybe call TAC and have them see what they can do.
Beginner

Re: Nexus ACI mode to NX-OS mode migration using USB issue

Hi, the problem is due to a bug affecting your release (12.2) and fixed by formatting your USB using EXT4:

 

ACI: DMR1 not recognizing USB drive from ACI Switch OS
CSCvf49746
 
Cannot view contents of USB drive formatted with FAT from Switch ACI OS.

Symptom:
Cannot view contents of USB drive formatted with FAT from Switch ACI OS.
So, users cannot copy any files from USB drive. (ex. cp /usb/usb1/XXXX /bootflash/XXXX)

Conditions:
Loader> prompt recognizes FAT file system even on 12.2, 12.3, all.
Only Switch ACI OS can't see USB with FAT file system.

Workaround:
use USB drive having ext4 file systems.
or copy files from external file servers with scp.

 

Highlighted
Beginner

Re: Nexus ACI mode to NX-OS mode migration using USB issue

---------------------------------------------

Load nxos code to usb and plug it in

Reaload switch then break with Ctrl + C


From Loader
loader> cmdline recoverymode=1
loader> cmdline init_system
loader > boot usb1:nxos.7.0.3.I7.4.bin


Login: admin
switch# dir ?
switch# copy usb1:nxos.7.0.3.I7.4.bin bootflash:
switch# configure terminal
switch(config)# boot nxos bootflash:nxos.7.0.3.I7.4.bin
switch(config)# copy running-config startup-config


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