local cfg_size= kernel_size= rootfs_size=
local append=""
- [ -f "$UPGRADE_BACKUP" -a "$UPGRADE_OPT_SAVE_CONFIG" -eq 1 ] && append="-j $UPGRADE_BACKUP"
+ [ -f "$UPGRADE_BACKUP" ] && append="-j $UPGRADE_BACKUP"
cfg_size=$(dd if="$img_path" bs=2 skip=35 count=4 2>/dev/null)
kernel_size=$(dd if="$img_path" bs=2 skip=71 count=4 2>/dev/null)