FAQ.txt

1) how to get crashlog after reboot
A:
	for example with mt7621 platform, make with this flag:
	
	# vim target/linux/ramips/mt7621/config-4.14

add:  CONFIG_CRASHLOG=y

then:
	# cat /sys/kernel/debug/crashlog


2) convert img file to vmdk file:
A:
	qemu-img convert -f raw openwrt.img -O vmdk openwrt.vmdk

3) luci-app-xxx not shown in the "make menuconfig" list
A:
    # rm -rf tmp/*
    # ./script/feeds update -a
    # ./script/feeds install -a

4) add USB support
Base system  -->  block-mount , blockd(option)
Kernel modules --> Filesystem --> kmod-fs-exfat/ext4/msdos/ntfs
Kernel modules --> USB support --> kmod-usb-ohci/uhci
Kernel modules --> USB support --> kmod-usb-usb2/usb3
Kernel modules --> USB support --> kmod-usb-storage/storage-extras
Utilities --> Disc -->  blkid/cfdisk/lsblk (option)

5) transmission failed to start
A:
    in /etc/init.d/transmission file, modified following two lines:

		[ "$incomplete_dir_enabled" = "0" ] || service_dirs="$service_dirs $incomplete_dir"
        [ "$watch_dir_enabled" = "0" ] || service_dirs="$service_dirs $watch_dir"


6) build frp package fail for "dial tcp 34.64.4.113:443: i/o timeout"
A:
  open Make file of "feeds/packages/net/frp/Makefile" , then add following two lines 
  in file head, then make again: #make package/frp/compile V=s

export GO111MODULE=on
export GOPROXY=https://goproxy.cn


7) enable mesh and 802.11s-kvrw
A:
  -- kernelmodule --> kernel-support -->  kmod-batman-adv
  -- network --> wirelessAD --> wpad-wolfssl/wpad-openssl