Current Version: 191.4 introduced with WebOS 1.4.1
Old version : 145.2.6 introduced with WebOS 1.0.3
Bootie is the stage3 bootloader of webOS devices. It is unpacked from the end of boot.bin, and loaded to **0x82000000** in memory. Bootie looks very similar to iBoot from the iPhoneOS devices.
Getting into bootie mode is as easy as holding the volume-up key while plugging the phone into USB while the phone is in the "off" state. The novaterm/novaproxy programs can then be used to talk to bootie.
Running Bootie commands
The following is an example of using novaterm to run the bootie command "help":
] help command list: nduid : get the device id usb : usb transfer commands lboot : boot linux image klog : klog commands printenv : print all of the environment variables getenv : read an environment variable setenv : set an environment variable reset : reset the device script : run a script at specified address run : run a script at from an environment variable return : return from current script help : this list version : get bootie version battery : battery status (found in webOS 1.4.1 and not in 1.0.3) charging : commands to set charging states fsboot : boot current image based on environment chainboot : boot another bootloader image based on environment go : Jump to a given address with the given arguments cpurev : read the cpu revision (found in webOS 1.0.3 but not in 1.4.1) diag : perform diag operations: write, boot, verify poweroff : power off completely
The Bootie Environment
The default environment of Pre phones during boot follows:
] getenv T ? = 0 T chargebypass = 0 T framebuffer = 0x8f600000 T boardtype = castle-dvt3 installer = trenchcoat T klog_len = 0x100000 T klog_addr = 0x8ff00000 T logofile = boot/logo.tga T bootaddress = 0x81000000 T bootfile = uImage T bootfs = ext2 T bootdevice = mmc0p1 T bootargs-ramdisk = root=/dev/ram0 ramdisk=32768 ro T bootargs = root=b302 rootdelay=2 ro T bootconsole = tty1 autoboot = fsboot
The boot environment on a TouchPad (3.0.2) follows:
T ? = -1000 T framebuffer = 0x7f600000 installer = trenchcoat checkbatt = 1 T chargebypass = 1 T klog_len = 0x100000 T klog_addr = 0x7ff00000 T tablet_wod_support = 0x0 T extended_timeout = 0x0 T chainbootdevice = mmc0 T bootaddress = 0x41000000 T bootdevice = mmc0p12 T bootfile = uImage T bootfs = ext2 T bootargs-ramdisk = root=/dev/ram0 rw T bootargs = root=/dev/mmcblk0p13 rootwait ro T bootconsole = ttyS0,115200n8 T autoboot = fsboot T boardtype = topaz-Wifi-pvt
In addition to the commands listed by the help command displayed above, bootie supports the command get which will return the contents of a file, for example:
novacom get file://klog