Hello, Currently, my problem when trying to boot linux is: After the board entered cygmon, I typed "go" command, then the minicom screen show below information: ****************** cygmon>go cygmon_handle_exception()monitor_loop return=0 Returned from breakpoint Waiting for host based download Press space bar to abort host download mode.... .. .. .. Press space bar to abort host download mode.... ******************** Then I open another terminal and entered the directory of /opt/ixasdk/enp-2505/bin. I run the script .create_environment.rc and boot_bv. The screen of boot_bv show: ********************* eht1: unknow interface: No such device rmmod: module pciDgNet is not loaded rmmod: module pciDg is not loaded Booting board before = 0x7e6c6700 ********************* Then the screen of minicom show below information: ******************** Booting linux.... Hit breakpointDisassembling 0xc4e9.8944 mrcge 13, 4, r9, cr3, cr14, {4} Waiting for host based download Press space bar to abort host download mode... Press space bar to abort host download mode... ..