Norbert Preining asked: >> fmtutil: fmtutil: unknown option `--no-error-if-no-format'. Try fmtutil --help for help. > > Did this happen again, i.e., after updating 'tetex' package? > It should not happen more than once. Yes, it has happened at least 3 times. Herb Schulz noted that TL is owned by root. I always use sudo to run tlmgr.