I have 3 USB sticks with 1 GB, 16 GB, 32 GB. All are formatted with FAT 32 filesystem. When I copy with cpa, then no error occurs. When I use rsync -av, then next mount, dmesg gives the following error: dirty bit, stick not properly unmounted. Run fsck. The stick was correctly unmounted and the copy process did finish completly.
I have the following USB sticks: 1. Telekom: gratis 1 GB stick 2. Verbatim: 16 GB stick 3. Sony: 32 GB stick With all have the same error does occur. Can be the firmware of the sticks or something else.