There is no space or incorrect permissions on the /tmp/ directory.
CA Spectrum and CA Spectrum Remote Administration (SRAdmin) Daemon installations require root privileges to evaluate available resources and run custom installation scripts. Installing under the root ensures root privileges for the setuid executable, which lets the SpectroSERVER connect to SNMP ports. Because an initial installation generates residual files with root ownership, subsequent upgrade installations also require root privileges.
Make sure there is sufficient space in /tmp/ folder and the root user has full permission on /tmp/ folder.
Is it writeable and executable for the root user?
Check the directory permissions as follows:
ls -ld /tmp
drwxrwxrwt. 12 root root 4096 Jul 19 04:13 /tmp
Check disk space as follows:
To check the space in /tmp, run:
$ df /tmp