FMC 6.6.4 upgrade to 6.6.5-81 failed because missing space on /var

[swscco001]

Hello everybody,

because the Field Notice: 
https://www.cisco.com/c/en/us/support/docs/field-notices/723/fn72332.html?emailclick=CNSemail
we have to check our customers FMC release and upgrade if necessary.

A customer has FMCv 6.6.4 and I wanted to upgrade it with the Cisco Firepower Mgmt Center Upgrade 6.6.5-81, that was downloaded automatically

The Readiness Check was sucessful (see attched).

At 41% the upgrade procedure stopped with the attached report.

It reports missing disk space on /var.

before the upgrade:
----------------
admin@M-Firesight:~$ df -h
Filesystem      Size  Used Avail Use% Mounted on
/dev/sda6       3.7G  1.6G  1.9G  45% /
none             24G   92K   24G   1% /dev
/dev/sda7       238G  140G   87G  62% /var                      <---
none             24G  124K   24G   1% /dev/shm
tmpfs            24G     0   24G   0% /sys/fs/cgroup
tmpfs            24G     0   24G   0% /sys/fs/cgroup/pm
/dev/sda1        88M   46M   36M  57% /boot


at 41%:
--------
admin@M-Firesight:~$ df -hl
Filesystem      Size  Used Avail Use% Mounted on
/dev/sda6       3.7G  1.6G  1.9G  45% /
none             24G   92K   24G   1% /dev
/dev/sda7       238G  222G  4.0G  99% /var                     <---
none             24G  124K   24G   1% /dev/shm                      
tmpfs            24G     0   24G   0% /sys/fs/cgroup
tmpfs            24G     0   24G   0% /sys/fs/cgroup/pm
/dev/sda1        88M   43M   39M  53% /boot
/dev/sda5       3.7G  1.6G  1.9G  45% /new-root

Does the Readiness Check do not check for necessary disk space?

I checked the System / Backup/Restore for files that could be deleted but there was not much.

The customer restored the backup and give the the virtual machine additional 100GByte of disk space:

Now I have to assign the 100GByte to the /var file system.

I did not find a guide at Cisco' CCO that shows me how to increase the /dev/sda7 file system size.

Is there a guide?

Every hint is welcome!

Thanks a lot!




Bye

R.

[Marvin Rhoads · Accepted solution]

You cannot resize the disk and allocate the new space to a partition.

You have to do a closer inspection of the /var partition and determine what files can be removed. I've seen this on older FMCs that have had many upgrades over the years and potentially have many many old SRUs on disk taking up many GB of space.

TAC can best assist if you have doubt about what can be safely removed.

[swscco001 · Accepted solution]

Hi Marvin,

I wil remove files the /var partition that will not
needed anymore.


Thanks a lot!
R.