Re: Unable to start NCS - PI 3.5 cat: write errror: No space left on device

Charlie Jones · ‎09-19-2019

I was going to install the maintenance release for 3.5, I performed an ftp backup, and then I stopped NCS via ssh so that I could create a VM snapshot. When that was finished, I attempted to run NCS start, and that failed with the following message:

Warning: Unable to open /dev/sr0 read-write (Read-only file system). /dev/sr0
has been opened read-only.
Error: /dev/sr0: unrecognised disk label
cat: write error: No space left on device

I attempted to restore from the ftp backup, and that failed. I then tried rolling back with the VM snapshot, but I am unable to start NCS because of the message above and I was wondering if anyone had any suggestions. I do have a case open but I thought I would try this avenue as well.

Thanks!

marce1000 · ‎09-20-2019

- Issue the command show disks to see which partition is actually full.

M.

-- Each morning when I wake up and look into the mirror I always say ' Why am I so brilliant ? '
When the mirror will then always repond to me with ' The only thing that exceeds your brilliance is your beauty! '

Charlie Jones · ‎09-20-2019

Thanks for the help. I came across the link below and there is a reference where someone rebuilt the wtmp folder so I tried that and it worked.

#enter shell:
shell
#get root
sudo su -
#write an empty new wtmp file (this can take a minute)
cat /dev/null > /var/log/wtmp

https://community.cisco.com/t5/network-management/cisco-prime-infra-3-1-does-not-start/td-p/2949520