i thought a purely ubuntu method would be helpful for those just starting out [like me] and the linux methods haven't been updated [to my knowledge].
1. charge your phone to at least 50%.
2. get adb.
Install adb. Download it here: developer.android.com/sdk/index.html . adb is a little program distributed as part of the Android software development kit (SDK). Its job is to communicate with the phone from a shell (terminal). To install adb, I strongly suggest you copy the adb file from the tools directory into your system's /usr/local/bin directory. This way, it will always be in your path. If you don't intend to do development work on Android applications, feel free to delete the rest of the SDK after installing adb.
gksu nautilus /usr/local/bin
drag the adb file in there and close nautilus.
3. pick a rom from the rom bible: forum.xda-developers.com/showthread.php?t=704567
i like the ota updated one from CR, the froyo ones were "too lacking" for me. although still awesome*
place the rom on your phone's sd card. don't unzip it. and remember where you put it.
4. download this 4shared.com/file/J6i52nwy/slideroot.html
make a folder somewhere [i use the desktop] and name it something, like "root". extract the downloaded files into that folder.
5. set the phone up to be rooted:
-unplug it from the computer if it is plugged in
-again, make sure it is charged to at least 50%
-settings > applications > development > USB debugging (check mark here)
-settings > connect to pc > charge only
-settings > wireless & networks > wifi unchecked (important)
-settings > sound & display > screen timeout > never
-now plug it back in
6. minimize all other windows.
open up a terminal and type:
now drag the folder you extracted all the stuff from step 4 into the terminal window [faster than typing it all out ]. click the title bar of the terminal. press enter. don't close this terminal. we should now be inside the folder.
7. copy and paste these commands in order.
they make some time to complete, so be patient or risk KILLING YOUR PHONE TO DEATH. [also, i'm not sure which commands actually require sudo to run so i just included it in all of the commands, forgive my noobishness].
sudo adb devices
-to start it up and make sure your phone is recognized the first time, if not, try again:
sudo adb devices
sudo adb push exploid /sqlite_stmt_journals
sudo adb push flash_image /data/local
sudo adb push mtd0.img /data/local
sudo adb push update.zip /sdcard
sudo adb push esprimg.zip /sdcard/ESPRIMG.zip
-you might want to get a drink or say hi to some friends at this point; takes a while. just wait until it says it's done like the rest.
chmod 0755 exploid
-at this time go to settings and turn wifi on and then back off before continuing
-the password is : secretlol
you should now have a # instead of a $
chmod 04755 *
/data/local/flash_image misc /data/local/mtd0.img
8. turn off the phone.
9. press and hold volume down and then power up; hold both buttons.
let go when see the 3 skateboarding androids.
10. wait until the bar on the side of the screen loads.
if you don't see the bar wait about 4 minutes and something should happen.
11. when it is finished, press volume up, when prompted, to apply the update.
wait some more!~
DON'T REBOOT when it is done.
12. DON'T REBOOT!
13. press volume down.
press volume down once to highlight recovery and select with the power/lock button to boot recovery.
on the recovery screen you will see a device with a red warning triangle.
hold volume up and power together for a second or so.
14. ignore the warning at the bottom.
press volume down and then power to select apply update.zip.
you will now be loaded into the clockwork recovery and will be able to flash the rom of your choosing from your sd card.
you can use your touchpad at the bottom now and select with it.
otherwise: volume butttons=navigation power/lock=select
15. do a backup of your phone with nandroid.
-pretty self explanatory > press backup >wait >??? >profit!
16. wipe the device.
this won't wipe your sd card though, so don't worry.
17.install a custom rom
scroll down and select "install zip from sd"
select choose "zip from sdcard"
find your rom and apply!!!
18. complain on the dev forums about how bad the roms are, how dead the phone is, and speculate about newer phones. also, make sure to start your own thread even if it is a question, general banter, or to post pictures .
19. seriously don't do step 18.
20. update the radio if it is not the newest one.
ubuntu set up:
go donate money to the active devs now.