TBSM v4.2.1 FP1 has been in the wild for a few weeks now. I’ve seen numerous issues with this fix pack related to local server disk space requirements.
Please review each server’s available disk space before starting your FP1 installation. Make sure you have plenty of space available (> 5GB ++) specifically in the /tmp, /home and where you choose to do a backup. Make sure the tbsm install user has permissions to write to that backup location.
If you do not want to do a backup (ie new install & patch), you can use the flag ./install.sh -DNO_BACKUP=true to skip the backup step.