notes

1: 小米手机MIUI安装Google服务框架和Google Play的教程
# https://www.jianshu.com/p/3ef94c719de7

2: lantern
#  https://github.com/getlantern/download

# udevadm info -a -p $(udevadm info -q path -n /dev/sda4)

# while read l; do echo $l;  n=${l/:/_}; lspci -v -s $l >  ${n}.dev;  done  < bdf

# 
  systemd-analyze dot "local-fs.*"  > local-fs.dot
  dot -Tjpg -olocal-fs.jpg   local-fs.dot 
  systemd-analyze dot  --order  "local-fs.*"  > local-fs.order.dot
  dot -Tjpg -olocal-fs.order.jpg  local-fs.order.dot 
  systemd-analyze dot  --require  "local-fs.*"  > local-fs.require.dot
  dot -Tjpg -olocal-fs.require.jpg  local-fs.require.dot 
  systemd-analyze dot  --order  "local-fs.*"  --from-pattern="local-fs.*" >>  localfs.after.dot
  dot -Tjpg -olocalfs.after.jpg  localfs.after.dot 

#
 systemd-analyze dot --to-pattern="*.target" --from-pattern="*.target"  >  target.dep.dot
 dot -Tjpg -otarget.dep.jpg  target.dep.dot 
 dot -Tjpg -otarget.noshut.jpg  target.noshut.dot 

# 
 qemu-system-x86_64  -nographic -kernel  bzImage   -initrd rootfs -append "root=/dev/ram rdinit=/helloworld console=ttyS0 "