[Dev] Kboot release (Stable), boot multiple kernel/os

• 0.0. Unstable release. Freeze bug. Install release ARCHIVE (Obsolete)
• 0.1. Fix freeze. Python bytecode generation (pyc files) is naturally not friend with squashfs. Install release ARCHIVE (Obsolete)
• 0.2. STABLE Release. Display timeout, migration from squashfs to initramfs. Install release ARCHIVE

• zImage and initramfs.cpio.gz to flash in SDE menu
• a directory kboot which contain:
  • conf directory : configuration file
  • os directory : os to boot
  • images directory : background menu image

1. Kboot directory
   Copy the kboot directory on your archos in /mnt/storage/, you should have this path /mnt/storage/kboot. The path should be exactly the same otherwise kboot will not be launched
2. Flash zImage and initramfs.cpio.gz
   Follow this link to setup SDE on your archos http://xdaforums.com/showthread.php?t=930197
3. After Reboot
   You should have the following screen. Note: after installing Kboot the device permanently reboot in Kboot.
   
   
   
   The main menu will display the os put in os directory (see in Configuration OS boot menu to see how to include your os), advanced menu and halt.

1. OS boot menu
   I have tried to make things simple. To add an OS, all you need is to create a directory in /mnt/storage/kboot/os/ and put in this newly created directory the files zImage and initramfs.cpio.gz.
   Important, the name should be exactly zImage and initramfs.cpio.gz, if one file is missing or misnamed the menu item don't appear
   For example, the menu above have the following content in /mnt/storage/kboot/os :
   
   Code:

   /mnt/storage/kboot/os/Android Froyo:
   drwxrwxrwx    2 2000     2000         4096 Feb 27 23:42 .
   drwxrwxrwx    5 2000     2000         4096 Feb 28 15:02 ..
   -rw-rw-rw-    1 2000     2000       726520 Feb 27 23:39 initramfs.cpio.gz
   -rw-rw-rw-    1 2000     2000      2564460 Feb 27 23:39 zImage
   
   /mnt/storage/kboot/os/Android Honeycomb:
   drwxrwxrwx    2 2000     2000         4096 Feb 27 16:46 .
   drwxrwxrwx    5 2000     2000         4096 Feb 28 15:02 ..
   -rw-rw-rw-    1 2000     2000            0 Feb 27 13:42 initramfs.cpio.gz
   -rw-rw-rw-    1 2000     2000            0 Feb 27 13:42 zImage
   
   /mnt/storage/kboot/os/UrukDroid 1.6:
   drwxrwxrwx    2 2000     2000         4096 Feb 28 15:03 .
   drwxrwxrwx    5 2000     2000         4096 Feb 28 15:02 ..
   -rw-rw-rw-    1 2000     2000      2874800 Jan  3 19:41 initramfs.cpio.gz
   -rw-rw-rw-    1 2000     2000      2302252 Jan  3 19:26 zImage

   Note : for specific kernel you can add a file named cmdline containing kernel parameters
2. Advanced boot menu
   • Boot init : boot into android, if android kernel was uninstalled, this item didn't appear
   • Boot recovery : boot into recovery
     
     
   • Soft boot : For details about omap soft reboot see the discussion here
     
     

• init
  • telnet : 1 to enable telnet, 0 to disable
  • usbip : set the ip address of usb ethernet interface
  Code:

  [init]
  telnet = 1
  usbip = 192.168.10.1

• kboot
  • last_selection : enable (1) or disable (0) the boot by default of the last selectioned entry after a configured timeout
  • last_selection_timeout : timeout in second
  • softboot : enable or disable softboot menu
  • title_font_size : set the title font size
  • menu_font_size : set the menu font size
  • title_color : title color in r,g,b format
  • menu_item_color : menu unselected color in r,g,b format
  • menu_item_selected_color : menu selected color in r,g,b format
  Code:

  [kboot]
  # boot last selection if no key pressed after 30 seconds
  last_selection = 1
  last_selection_timeout = 30
  # enable soft boot menu (bootloader dev only)
  softboot = 1
  
  # some tuning
  title_font_size = 36
  menu_font_size = 32
  # change the color, R,G,B format
  title_color = 255,255,255
  menu_item_color = 92,97,98
  menu_item_selected_color = 0,0,255

• softboot
  • item<n> : the boot sequence wanted
  Code:

  [softboot]
  # put a list of items to display in Soft boot menu
  # item<n> = sequence
  item1 = uart,usb,mmc1,mmc2
  item2 = uart,usb
  item3 = mmc1,mmc2

• background image
  To customize the background image, just replace the file kboot/images/bkg.png with your own and adapt if necessary the size and the font color.

fzelle said:

Unfortunately it's not working on the A70S, as we only have 800x480 and therefor need a diff picture.

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MarsCarmen said:

EDIT:Sorry, Urukdroid cannot boot.It stay at the boot animationan and always show that.

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fzelle said:

The menu is not readable because the resolution adaption is not doing what it should do.

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fzelle said:

@alephzain:
Copied the whole kboot dir and flashed the new initrams and zimage.
Looks still as before.

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ifconfig usb0 192.168.10.2 netmask 255.255.255.0 up
telnet -l root 192.168.10.1

fzelle said:

Found a Live Linux to use in a vm.

ps output starts with :
{init} /bin/sh /init A70S 07 /dev/mmcblk1p1 /dev/mmcblk0p1

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wdl1908 said:

This may be a stupid question but why do you need a squashed fs that contains (when unsquashed) about 30Mb on files including python?

it should be possible to trim that down and put all the scripts and support libs in the initramfs so that you only need to flash the kernel and initramfs and nothing else.

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