[ ${erase_size:-0} -gt 0 ];
then
local append=""
- [ -f "$UPGRADE_BACKUP" -a "$UPGRADE_OPT_SAVE_CONFIG" -eq 1 ] && append="-j $UPGRADE_BACKUP"
+ [ -f "$UPGRADE_BACKUP" ] && append="-j $UPGRADE_BACKUP"
( dd if="$1" bs=$CI_BLKSZ skip=1 count=$kern_blocks 2>/dev/null; \
dd if="$1" bs=$CI_BLKSZ skip=$((1+$kern_blocks)) count=$root_blocks 2>/dev/null ) | \