CB Response: Upgrade fails with error in cb-pgsql startup log: "could not access directory "/var/cb/data/pgsql": No such file or directory.

Products

• Carbon Black EDR (formerly Cb Response)

Issue/Introduction

• Cb Response server upgrade fails.
• /tmp is on a small partition (i.e. 1.8 GB free)
• During cluster startup, cb-pgsql fails to start.
• Temporary cb-pgsl folder exists (i.e /var/cb/data/pgsql.93)
• error in cb-pgsql startup log: "could not access directory "/var/cb/data/pgsql": No such file or directory

 

Environment

• CB Response Server: 6.0.1 and higher

Cause

The partition that /tmp resides on is too small to fit temporary working space for pgsql upgrading.

Resolution

To fix, 

1. Allow for larger working space by creating a symbolic link for /tmp to a larger partition
2. # lsof /tmp   <-  close any processes with open files in /tmp
3. # umount /tmp
4. # ln -s /tmp /big/tmp
5. Now follow the solution in Article Related Content to re-run the cbupgrade process.