By default rsync verifies written files to make sure that it matches the original file. I can reproduce this by copying a volatile file from /sys$ rsync -v /sys/power/state /tmp/statersync: read errors mapping /sys/power/state: No data available (61)WARNING: state failed verification -- update discarded (will try again).statersync: read errors mapping /sys/power/state: No data available (61)ERROR: state failed verification -- update discarded.sent 8,328 bytes  received 133 bytes  16,922.00 bytes/sectotal size is 4,096  speedup is 0.48rsync error: some files/attrs were not transferred (see previous errors) (code 23) at main.c(1165) [sender=3.1.0]Is there an option to turn this error into a warning and without discarded the file again? Context: I want to use rsync instead of cp to workaround a common bug in coreutils (broken since 12 years), see Why does cp --no-preserve=mode preserves the mode? Alternative tools available?
rsync option to disable verification?
rsync