NCS55A2 router issue after 'reload'
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10-30-2024 12:51 PM
Hello everyone,
I have an NCS55A2 router that I mistakenly rebooted using the 'reload' command, but the router only has a single supervisor card. After issuing the command, I encountered several issues regaining console access to the device, and now I can only access it in admin mode. Could anyone help me restore the device?
sysadmin-vm:0_RP0# show vm
Location: 0/RP0
Id Status IP Address HB Sent/Recv
-------------------------------------------------------------
sysadmin running 192.0.0.1 NA/NA
default-sdr shutoff 192.0.0.4 0/0
default-sdr shutoff 192.0.0.6 0/0
Thanks in advance.
@ios-XR
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10-30-2024 01:08 PM
Hi @TelesEC,
Try with “CTRL +O” on your keyboard and see if it will exit/cycle from the sysadmin to XR vm.
Regards,
Martin
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10-30-2024 01:24 PM
Hi Martin, thanks for your comment, I will try Ctrl+"o". Regards,
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10-30-2024 01:15 PM
The syslogs from sysadmin might help. If you just want to try and recover try a 'hw-module loc all reload'. Note when you did reload (either from sysadmin or exec/xr) it only reloads the VM and not the hardware, hw-module is the proper way to reload.
It is also possible you just need to wait a little longer for the VMs to come up, but syslog should say what is going on.
If its stuck we can gather a few show techs like os, ctrace, install, hb-loss.
Sam
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10-30-2024 01:22 PM
Hello Sam,
Thank you for your response. The router doesn’t have any configuration, just the management IP, and since I’m used to IOS-XE and NX-OS, I did a reload on that equipment without thinking, and it spent over half an hour rebooting with errors, eventually ending up in admin mode.
What I want is to regain normal access to the router, as it was before the 'reload.' The version is 7.9.1, so I’ll try the command 'hw-module loc all reload' to try to recover the router.
Regards,
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10-30-2024 01:31 PM
Hi, In the attached file, you will find the 'show logg'. Thanks a lot.
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10-30-2024 01:58 PM
There is a chance it's an issue caused by having used the 'reload' command and going headless.
But essentially everytime sysadmin tried to bring up the XR VM we get an LXC crash file and auto-reload to try and recover the VM. There are also some CPU errors but they could be harmless.
If you really want an RCA then we would have to provision the mgmt. port on sysadmin or insert a USB and copy several show techs off the box.
Sam
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10-30-2024 02:09 PM
The news isn't so good... During working hours, I'll run the hw-module command, hoping the issue gets resolved
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10-30-2024 11:45 PM
Hello Sam, it didn't work, so the only option left is the RMA?
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10-31-2024 11:27 AM
Sam
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10-31-2024 11:46 AM
Thanks Sam. I will do it. The equipment is practically new, and it was restarted to prepare for a later upgrade, so was it the "reload" command that affected the router? Is there any specific reason that could explain it? Thanks for your time & help.
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10-30-2024 02:03 PM
Hi,
I would try an upgrade first, I've seen enough similar bugs, not exactly with same logs, but very similar.
Best,
Cristian.
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10-30-2024 10:51 PM
Hi, The router is on version 7.9.2, and I wasn't planning on performing an upgrade, so I'm not sure if there's another image (.tar) on it. Regards,
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10-31-2024 12:32 AM - edited 10-31-2024 12:33 AM
Hi,
Download a newer image (maintenance / stable version) and perform the upgrade, I'd say there are good chances on fixing it this way; after the upgrade, perform a reload via "hw-module loc all reload" to validate it comes back alive. https://www.cisco.com/c/en/us/td/docs/iosxr/ncs5500/system-setup/711x/configuration/guide/b-system-setup-cg-ncs5500-711x/m-install-ios-xr-software.html
Best,
Cristian.
