=== FILES ===

PB00IMG_Desire_C_Verizon_WWE_2.37.605.4_release_signed.zip
  - PB00IMG.ZIP for Eclair MR4 (includes locked hboot)
  - signed with HTC-specific whole-file signature (uses data after EOCD)
  - has downgrade protection based on a version number in the misc partition
  - includes hboot 1.49.0000 (locked), userdata, system, radio, etc.
  - place in /sdcard root (must be FAT32) and run bootloader

PB00IMG-leaked-root.zip
  - PB00IMG.ZIP for pre-MR3 leaked enginering build
  - includes hboot 1.49.2000 (engineering hboot)
  - http://androidforums.com/all-things-root-eris/121597-how-install-engineering-bootloader.html "Original Root Rom"

boot-root-serial.img
  - custom boot.img with changes:
  - headset & serial console disabled (to leave serial port available)
  - chmod 0666 /dev/ttyMSM2 (serial port) in init.rc
  - ro.secure=0 (root adb) in default.prop

misc-rollback-custom.img
  - misc image to defeat rollback protection that blocks PB00IMG-leaked-root
  - (of course you need to be able to flash misc somehow)
  - http://androidforums.com/all-things-root-eris/121597-how-install-engineering-bootloader.html "Custom Misc Image"

recovery-RA-eris-v1.6.2.img
  - Amon Ra enthusiast recovery
  - http://forum.xda-developers.com/showthread.php?t=648025

gscript.zip
  - root exploit for any Eris version
  - http://androidforums.com/all-things-root-eris/127861-universal-eris-root-dummies.html

passion-ota-121341.zip
  - for Nexus 1, not Eris -- signed full OTA image for GRJ22 update

signed-hboot-0.35.0017.zip
  - for Nexus 1, not Eris -- signed hboot OTA image

=== NOTES ===

Starting from Cupcake:
  - apply PB00IMG-leaked-root.zip (write /PB00IMG.ZIP on sdcard, boot to hboot)
  - fastboot flash system and radio from PB00IMG_Desire_C...zip
  - fastboot flash recovery recovery-RA-eris-v1.6.2.img
  - fastboot flash boot boot-root-serial.img
  - fastboot erase userdata
  - reboot

Starting from locked Eclair:
  - use gscript.zip (or some other exploit) to get temporary root
  - adb shell flash_image misc misc-rollback-custom.img
  - go to "Starting from Cupcake"

Building the kernel:
  - download the NDK
  export ARCH=arm
  export CROSS_COMPILE=.../android-ndk-r4b/build/prebuilt/linux-x86/arm-eabi-4.4.0/bin/arm-eabi- 
  adb pull /proc/config.gz .config.gz && gunzip .config.gz
  - edit .config to remove HEADSET, SERIAL_DEBUGGER items
  make oldconfig
  make -j4

Packing a boot.img:
  mkbootimg --kernel newkernel.zImage --ramdisk newramdisk.cpio.gz --cmdline 'no_console_suspend=1 console=null' --base 0x11200000 -o newboot.img

See also:
  - http://android-dls.com/wiki/index.php?title=HOWTO:_Unpack,_Edit,_and_Re-Pack_Boot_Images
  - http://www.thefuzz4.net/home/AndroidPhones/Eris/HowToRootYourHTCEris/ErisRootRoms.aspx
  - http://code.google.com/p/zen-droid/downloads/detail?name=mkbootimg
  - http://code.google.com/p/android-serialport-api/wiki/Htc