"done\0" \
\
"scan_dev_for_boot_part=" \
- "part list ${devtype} ${devnum} devplist; " \
+ "part list ${devtype} ${devnum} -bootable devplist; " \
+ "env exists devplist || setenv devplist 1; " \
"for bootpart in ${devplist}; do " \
"if fstype ${devtype} ${devnum}:${bootpart} " \
"bootfstype; then " \