What is needed to make a busybox init boot to a shell on an arm device/phone?












1














I compiled busybox with arm-linux-gnueabihf for and Cortex-A/armv7-a arm device/phone. When I run the binary on android it works well. I decided to modify the android boot image. In the boot image ramdisk I have




bin/busybox

init which is a link to busybox




I tried to boot with linuxrc in the root of the ramdisk but the phone/device reboots on boot. After I used init it boots and just hangs on the logo. My assumption is that it is actually doing something and just hangs when its finished. Is it because I need to have populated stuff in the /dev and /proc?



What would I need to make it show me the black screen for login?
Is it because init hasn't connected to the output monitor which is the phones lcd?
Do I have to call busybox login or busybox something in my /etc/init.d/rcS










share|improve this question



























    1














    I compiled busybox with arm-linux-gnueabihf for and Cortex-A/armv7-a arm device/phone. When I run the binary on android it works well. I decided to modify the android boot image. In the boot image ramdisk I have




    bin/busybox

    init which is a link to busybox




    I tried to boot with linuxrc in the root of the ramdisk but the phone/device reboots on boot. After I used init it boots and just hangs on the logo. My assumption is that it is actually doing something and just hangs when its finished. Is it because I need to have populated stuff in the /dev and /proc?



    What would I need to make it show me the black screen for login?
    Is it because init hasn't connected to the output monitor which is the phones lcd?
    Do I have to call busybox login or busybox something in my /etc/init.d/rcS










    share|improve this question

























      1












      1








      1







      I compiled busybox with arm-linux-gnueabihf for and Cortex-A/armv7-a arm device/phone. When I run the binary on android it works well. I decided to modify the android boot image. In the boot image ramdisk I have




      bin/busybox

      init which is a link to busybox




      I tried to boot with linuxrc in the root of the ramdisk but the phone/device reboots on boot. After I used init it boots and just hangs on the logo. My assumption is that it is actually doing something and just hangs when its finished. Is it because I need to have populated stuff in the /dev and /proc?



      What would I need to make it show me the black screen for login?
      Is it because init hasn't connected to the output monitor which is the phones lcd?
      Do I have to call busybox login or busybox something in my /etc/init.d/rcS










      share|improve this question













      I compiled busybox with arm-linux-gnueabihf for and Cortex-A/armv7-a arm device/phone. When I run the binary on android it works well. I decided to modify the android boot image. In the boot image ramdisk I have




      bin/busybox

      init which is a link to busybox




      I tried to boot with linuxrc in the root of the ramdisk but the phone/device reboots on boot. After I used init it boots and just hangs on the logo. My assumption is that it is actually doing something and just hangs when its finished. Is it because I need to have populated stuff in the /dev and /proc?



      What would I need to make it show me the black screen for login?
      Is it because init hasn't connected to the output monitor which is the phones lcd?
      Do I have to call busybox login or busybox something in my /etc/init.d/rcS







      boot android busybox-init






      share|improve this question













      share|improve this question











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      asked Dec 18 at 13:54









      Bret Joseph

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