Say hi to "CyanoBoot" -- a 2nd bootloader/w menu aka "ub2" - (WIP)

[lillo95]

How do you expect to enter cwm without cyanoboot? And why would you want to remove it in the first place? It adds options to boot into emmc and sdcard Rom and recovery and alternate recovery also.

If you really really don't want it, flash stock image again root it, then use indirect's nook recovery flasher (an older version, not sure of the newer one's stability)

Sent from my ST27i

i tried this awesome bootloader
but isn't useful for me
sorry
but how i can flash stock image back??

i've used this metod
http://xdaforums.com/showthread.php?t=1402190
several times
but cyano still remain y.y

 

[DanGeorges]

i tried this awesome bootloader
but isn't useful for me
sorry
but how i can flash stock image back??

i've used this metod
http://xdaforums.com/showthread.php?t=1402190
several times
but cyano still remain y.y

Try this method: http://raywaldo.com/2012/06/how-to-un-brick-a-nook-tablet-8gb-or-16gb/
This will get your nook back to the stock configuration.

Here is my recommendation on how you can preserve what you have:

1. Load Titanium Backup and back up all your apps that you'd like to keep
2. Using the unbrick method above, restore the Nook back to factory state
3. Root using this method: http://xdaforums.com/showthread.php?t=1529553
4. Load Nook Tab Recovery Flasher if you'd like to get CWM recovery: http://xdaforums.com/showthread.php?t=1650927
5. Check out this link for blocking OTA updates and for loading a new launcher: http://xdaforums.com/showthread.php?p=24843139

I did this, and now my nook is rooted with ADW EX launcher. No problems that I can find.

And no Cyanoboot - so you're good to go!

 

[lillo95]

How do you expect to enter cwm without cyanoboot? And why would you want to remove it in the first place? It adds options to boot into emmc and sdcard Rom and recovery and alternate recovery also.

If you really really don't want it, flash stock image again root it, then use indirect's nook recovery flasher (an older version, not sure of the newer one's stability)

Sent from my ST27i

Try this method: http://raywaldo.com/2012/06/how-to-un-brick-a-nook-tablet-8gb-or-16gb/
This will get your nook back to the stock configuration.

Here is my recommendation on how you can preserve what you have:

1. Load Titanium Backup and back up all your apps that you'd like to keep
2. Using the unbrick method above, restore the Nook back to factory state
3. Root using this method: http://xdaforums.com/showthread.php?t=1529553
4. Load Nook Tab Recovery Flasher if you'd like to get CWM recovery: http://xdaforums.com/showthread.php?t=1650927
5. Check out this link for blocking OTA updates and for loading a new launcher: http://xdaforums.com/showthread.php?p=24843139

I did this, and now my nook is rooted with ADW EX launcher. No problems that I can find.

And no Cyanoboot - so you're good to go!

alredy followed
doesn't work
when i install a custom rom this cyanoboot still appear
it's really hard to remove

 

[fattire]

As explained numerous times in this thread, you need a second boot loader such as cyanoboot to run any non-barnes and noble third party ROM. The nook tablet has a locked bootloader which prevents a non-stock, unsigned operating system from loading, and cyanoboot fixes this. The menu stuff and other features are all extras.

The claim above that cb "bricked" a device is highly suspect on numerous counts.

I recommend reading this thread where I and others explain what the second bootloader is for, and why it is a requirement on the nook tablet as well as nook HD and the new kindle fire HDs, all of which have locked bootloaders that required fixes.

 

[DanGeorges]

alredy followed
doesn't work
when i install a custom rom this cyanoboot still appear
it's really hard to remove

I thought you wanted it back to stock...

If you want to load a custom ROM, the only way to do it, as I understand, is to boot via the SD card or internally via Cyanoboot, which is typically included in Nook custom ROMs.

So my instructions work, but only to the point where you loaded a custom ROM - which itself included Cyanoboot.

If you don't want Cyanoboot, please don't load a custom ROM.

PM me for more information.

 

[lillo95]

yes yes yes
it's necessary
but before installing this cyanoboot i was able to load any custom rom
so, how i can remove it and replace??
and cyano give me an error every time: Normal SD boot overriden. Alt boot from EMMC...
booti: bad boot image magic (in memory)
how can i resolve that??
if i can't remove this **** bootloader at least i want to make work properly

 

[digixmax]

yes yes yes
it's necessary
but before installing this cyanoboot i was able to load any custom rom
so, how i can remove it and replace??
and cyano give me an error every time: Normal SD boot overriden. Alt boot from EMMC...
booti: bad boot image magic (in memory)
how can i resolve that??
if i can't remove this **** bootloader at least i want to make work properly

It's hard for folks to help when it's not clear what it is that you're looking to achieve -- keep the NT emmc on stock or rooted stock, and run a custom ROM on SD?

 

[DanGeorges]

It's hard for folks to help when it's not clear what it is that you're looking to achieve -- keep the NT emmc on stock or rooted stock, and run a custom ROM on SD?

If I understand correctly, this person wants the ability to load custom ROMs without replacing the Nook bootloader with Cyanoboot. The result would be to use the SD card as storage and NOT run a ROM from the card.

 

[RhinoNelson]

making Cyanoboot work

yes yes yes
it's necessary
but before installing this cyanoboot i was able to load any custom rom
so, how i can remove it and replace??
and cyano give me an error every time: Normal SD boot overriden. Alt boot from EMMC...
booti: bad boot image magic (in memory)
how can i resolve that??
if i can't remove this **** bootloader at least i want to make work properly

Quick 'fix' is to hold the 'n' key when the Boot Menu screen comes up during the boot process. This gives the ability, using the sound UP and DOWN keys to scroll through the options and select which you prefer. Select Internal Boot (EMMC?) and hit 'n' again and your ROM will boot.

The longer term fix is to go to your /bootdata folder (assuming you are rooted to this level) and in the U-boot.altboot file, use a text editor and change the 1 to 0 and you are good to go. The 'problem' you are experiencing is because Cyanoboot sees the Alt-Boot file before the Boot file, acts on what is there, and tries to boot from the AltBoot image which probably doesn't exist.

Once you sort the Alt-Boot issue booting becomes seamless and you will hardly know Cyanoboot exists -- until you want to take advantage of its many uses.

 

[lillo95]

Quick 'fix' is to hold the 'n' key when the Boot Menu screen comes up during the boot process. This gives the ability, using the sound UP and DOWN keys to scroll through the options and select which you prefer. Select Internal Boot (EMMC?) and hit 'n' again and your ROM will boot.

The longer term fix is to go to your /bootdata folder (assuming you are rooted to this level) and in the U-boot.altboot file, use a text editor and change the 1 to 0 and you are good to go. The 'problem' you are experiencing is because Cyanoboot sees the Alt-Boot file before the Boot file, acts on what is there, and tries to boot from the AltBoot image which probably doesn't exist.

Once you sort the Alt-Boot issue booting becomes seamless and you will hardly know Cyanoboot exists -- until you want to take advantage of its many uses.

wow, the long term solution work good for me =D
i've tried several times the "quick fix" but it's boring and annoying to do every times
well thank's dude =D u re the best

 

[sailerph]

Running CM 10.1 RC4 Clockwork mod 6.029 internal

Cyanoboot starts up, Hold N for menu, but then "Boot Menu" shows with no options below (no greyed out options either-nothing at all). Frozen here.I then have to power down and restart, it then loads to emmc fine Any ideas ? Thanks

 

[Firerouge]

Is their no download link to the precompiled images of this?

 

[fattire]

it should come with every cm build....

 

[oneway2k]

No Fastboot option from CyanoBoot menu

Fastboot (used for development)

For those familiar with “fastboot”, you can select the fastboot option from the CyanoBoot menu to go into fastboot mode. You can then (hopefully) flash to the boot or recovery partitions via USB cable using a command such as:

$ fastboot flash boot boot.img

I seem to be missing something here. I don't see a fastboot option in the menu. I'm running CM 11 nightly with CWM 6.0.4.8.

Thanks!

 

[digixmax]

Fastboot (used for development)

For those familiar with “fastboot”, you can select the fastboot option from the CyanoBoot menu to go into fastboot mode. You can then (hopefully) flash to the boot or recovery partitions via USB cable using a command such as:

$ fastboot flash boot boot.img

I seem to be missing something here. I don't see a fastboot option in the menu. I'm running CM 11 nightly with CWM 6.0.4.8.

Thanks!

To access Cyanoboot's "Boot Menu", hold down the N button as soon as the Cyanoboot boots up. "Start Fastboot" should be the last item on the menu.

 

[lourdliwanagM@gmail.com]

hi cynoboot

 

[fattire]

hi cynoboot

Cyanoboot says hi back.

 

[J.Michael]

I was unable to boot to stock without removing the SD-card. An older version of flashing_boot.img on the SD-card allows me to boot to stock.

I made a bootable SD-card using Succulent's cm_acclaim_11.0_01OCT2014_HD_SDC.zip. I used the MLO, u-boot.bin, and flashing_boot.img from the zip's root directory in the boot partition of my SD-card. My Nook Tablet would boot from the SD-card, I would get Cyanoboot, and I was able to SDC boot into Kitkat. When I tried to "INT boot" to the stock system, the screen would hang on "Read Forever" (never gets to "nook by Barnes & Noble").

The flashing_boot.img from post 100 of this thread, and the one from succulent_boot.zip, both allow me to boot to stock without removing the SD-card. They both display dates (at the bottom of the Cyanoboot screen) earlier than that displayed by the one from the CM11 zip.

I don't see any mention in this thread of a bug that was introduced and later fixed.

flashing_boot.img

from cm_acclaim_11.0_01OCT2014_HD_SDC.zip
      Thu Feb 6 19:43:36 2014
     boot to stock hangs on "Read Forever"
     (never gets to "nook by Barnes & Noble")
     boots to SD

from XDA thread   Say hi to "CyanoBoot"  post 100
  https://xdaforums.com/showthread.php?t=1522226&page=10
  link https://dl.xda-developers.com/1/2/9/1/1/7/1/flashing_boot.img?key=Uh_dTxbbaqL03aFHh5rICw&ts=1516415905
ALPHA Sat Feb 18 07:51:59 2012
     boots to stock
     boots to SD

from succulent_boot.zip
      Wed Jan 9 16:53:13 2013
     boots to stock
     boots to SD

 

[Mighty]

Hello!
i didnt understand the SD card method