[coreboot] Installing coreboot with SeaBIOS

Hi,

*Supplement:
I've noticed that the name of the USB stick is a Linux distribution so I assume I wrote a .iso or .img to it in the past what possibly changed partitions and/or file formats. How can I restore the stick back to "normal" with Ubuntu?*

while copying the coreboot/SeaBIOS installation (folder coreboot) to a USB stick I got the following error message:
Error with copying of >>usb_tcpm_v2_rev30_fuzz.c<<.
With copying of the file to ... /coreboot/3rdparty/-chromeec/fuzz an error occurred.
The file system doesn't support symbolic links
Cancel | Skip all | Skip
What can I do?
Regards,
Bernd