yashsingh1/xdaforums huggingface dataset:
[Chromebooks] nabil2000:
RFC - first attempt on Acer Chromebook leads to blank screen when booting from USB

on chromefy thread posted:

https://xdaforums.com/showpost.php?p=78313870&postcount=376

RFC - first attempt on Acer Chromebook C720P leads to blank screen when booting from USB

with chromefy - fizz/caroline

from

Originally Posted by JonnehXD

I've been attempting this for a while now, not sure what I'm doing wrong. I'm able to get a bootable chromium flash drive working just fine, so I know it's not my drives being weird.

As soon as I run the chromefy.sh script with the fizz & caroline files, the file it makes no longer boots when used on a live USB. I see the bios on my C720p try to boot the drive, but then instead of a chrome splash screen, I get a black screen.

Any advice? :S

-----------------

used this to resolve:

if you are lucky use ctrl-L, choose proper usb, a few times

switch off

do ctrl-U

it might fix it...

otherwise you need another PC device to boot it from

allow it to fully boot to the google os GUI

switch off,

now use ctrl-U on the C720P, it will work...

well, this worked everytime for me....

luckily I have a few devices to play with...

hope you do too, or you can use a friend's or colleague's device.

other ideas -

Maybe repair both /dev/sdx3 (root A) & /dev/sdx1 (stateful partition)

then reapply chromefy script...

also try other recovery images combos...

it took me a while to figure out my devices needed fizz/caroline...

RFC - any more elegant solution?

Until this is fixed - for rooting purposes... stick to my method of Post #1 using original C720P ROOT-A /dev/sdx3 partition with Kernel 3.18
[Chromebooks] nabil2000:
Testing chromeos_11151.33.0_nocturne_recovery_stable-channel_mp.bin

It works, spoke too fast -

do not use the second argument caroline bin image when running the chromefy script ;)

but in desktop, struggling to get Android working... Android not working so far.

I think Android is 8.1 Oreo & needs Linux Kernel 4.15 or above, this is why it is not loading, so we might need [MENTION=4134963]arnoldthebat[/MENTION] r71 special build to be compiled, is the source code released? there is no sign of r70 either.

Only good news so far is that crostini works with nocturne on Acer C720P in usb installation.

While waiting maybe for chromeos_11151.33.0_fizz_recovery_stable-channel or chromeos_11151.33.0_cyan_recovery_stable-channel...

Testing chromeos_11151.33.0_nocturne_recovery_stable-channel_mp.bin

Probably won't work for Acer Chromebook C720P - but I will test nocturn with chromefy script (Chromebook recovery image for Google Pixel Slate).

Instructions same as in post #111 above.

name=Pixel Slate

version=11151.33.0

desc=

channel=stable-channel

hwidmatch=^NOCTURNE .*

hwid=

md5=0683584ace7530849c286312b1c351c0

sha1=cd612a48d029070e354667fbf593591dc23add80

zipfilesize=1290752927

file=chromeos_11151.33.0_nocturne_recovery_stable-channel_mp.bin

filesize=2690670592

url=https://dl.google.com/dl/edgedl/chromeos/recovery/chromeos_11151.33.0_nocturne_recovery_stable-channel_mp.bin.zip

-----------------------------------------------------------------------------------------

OLD

Done, tested - gets to the login screen - but does not get to the desktop, putting in password, nothing happens.

Can access terminal console shell using ctrl-alt-F2 & back ctrl-alt-F1

mouse, contrast, WiFi, BT, etc work...

can't add person, can't browse as guest...

and no login access to desktop, so useless, need to wait for

chromeos_11151.33.0_fizz_recovery_stable-channel

so reverting to fizz

actually now using eve as brightness control not working with fizz...

hilarious news -

Google removed chromeos_11151.33.0_nocturne_recovery_stable-channel_mp.bin.zip from recovery.conf :)
[Chromebooks] nabil2000:
There might be a simpler solution for you with Acer CB C720P - I tried it, it seems to work -

use chromefy once using cyan / caroline - you should be able to boot this time... then after setting up your account,

use chromefy again this time with fizz / caroline to get crostini.
[Chromebooks] nabil2000:
Brightness button issue using chromefy for Acer CB C720P

Using fizz/caroline - I cannot use the brightness button.

using nocturne - brightness button works

Obviously fizz is for a chromebox, & nocturne for a laptop/tablet, so it figures.

If I use nocturne, I lose Android (until arnold releases r70 or r71)

Any idea how to fix this, or a recovery rom other than fizz that works with Android & crostini?

Answer: I used eve on top of fizz & it fixed it somehow, only the low brightness works & it only increases the brightness...

so use the mouse to adjust brightness after having the bar appear...

Note: funny bit, initially eve/caroline would not work at all (no booting)

so I did cyan/caroline, then fizz/caroline working without brightness

now on top eve/caroline booted OK with control of brightness with mouse.
[Chromebooks] nabil2000:
New Chromebook recovery release in recovery.conf - chromeos_11021.81.0

New Chromebook recovery releases in recovery.conf - chromeos_11021.81.0

(not yet for cyan, caroline...)

Might be r70 ? - will [MENTION=4134963]arnoldthebat[/MENTION] builds get compiled soon?

name=Google Pixelbook

version=11021.81.0

desc=

channel=stable-channel

hwidmatch=^EVE .*

hwid=

md5=77b16b5384fd75fa61c95e87658541df

sha1=717f92df313018aed6a81e80fd9f3c900b8cdd5f

zipfilesize=1500818361

file=chromeos_11021.81.0_eve_recovery_stable-channel_mp.bin

filesize=2690670592

url=https://dl.google.com/dl/edgedl/chromeos/recovery/chromeos_11021.81.0_eve_recovery_stable-channel_mp.bin.zip
[Chromebooks] nabil2000:
chromeos_11021.81.0_eve_recovery_stable-channel

chromeos_11021.81.0_eve_recovery_stable-channel installed successfully, everything seems working on Acer Chromebook C720P using caroline as second argument with chromefy script...

still issue of the bright plus button not working, but now has access to the brightness slide menu without having to press the button (in menu panel).

Note - the Chrome OS version is r70

Android is still Nougat 7.1.1

Version 70.0.3538.110 (Official Build) (64-bit)

Platform

11021.81.0 (Official Build) stable-channel eve

Firmware

Google_Peppy.4389.117.0

Channel

Currently on stable

ARC Version

5133027

Extra notes -

1st gripe - mouse/trackpad/bt mouse occasionally seize up for few seconds at a time.

2nd gripe - recurring aw snaps in Chrome browser tabs

overall -

using ROOT-A /dev/sdx3 original Google Chrome OS partition (so vanilla Kernel 3.18)

is far more stable than using arnoldthebat ROOT-A partition (Kernel 4.14)

of course the con is that one loses crostini

but crouton is far better anyways & one can root Android unlike with chromefy...

so I am keeping my version (from post #1) on a SSD when I need root.

Arnoldthebat has announced he will be releasing Chromium OS R71 soon, maybe it will iron out above issues of chromefy.

- https://github.com/arnoldthebat/chromiumos/issues/179
[Chromebooks] Ricardoch:
Current Version

Hi, and thanks for the great job.

Just for reference my c720p is updated and has exactly the same version and references, so seems you're working with the last update.

Great job!

(I'm sure I'll able to do it work:)
[Chromebooks] nabil2000:
Best combo so far

I think finally stumbled on the perfect combination for

Acer Chromebook C720P

It is

nami / kip using chromefy

name=Acer Chromebook Spin 13 (CP713-1WN)

version=11021.81.0

desc=

channel=stable-channel

hwidmatch=^AKALI360 .*

hwid=

md5=a20dce3bf36c8c8072aa4af9b4469417

sha1=b0bc331233f1d63546723475f68e2812834ec0b7

zipfilesize=1440198730

file=chromeos_11021.81.0_nami_recovery_stable-channel_mp-v5.bin

filesize=2585812992

url=https://dl.google.com/dl/edgedl/chromeos/recovery/chromeos_11021.81.0_nami_recovery_stable-channel_mp-v5.bin.zip

name=HP Chromebook 14 ak000-099 / HP Chromebook 14 G4

version=11021.81.0

desc=

channel=stable-channel

hwidmatch=^KIP [DE].*

hwid=

md5=6d4abe9133ff3311e5c61ff75c200204

sha1=21e7f062759c21fc0aa1068cd44eb20c5c772a00

zipfilesize=641092982

file=chromeos_11021.81.0_kip_recovery_stable-channel_mp-v3.bin

filesize=2271240192

url=https://dl.google.com/dl/edgedl/chromeos/recovery/chromeos_11021.81.0_kip_recovery_stable-channel_mp-v3.bin.zip

Again still waiting to crack the root for Android from a genious coder ;)

So far so good, seems to have ironed out all issues from eve/caroline...

$ sudo bash chromefy.sh /dev/sdc3 chromeos_11021.81.0_nami_recovery_stable-channel_mp-v5.bin chromeos_11021.81.0_kip_recovery_stable-channel_mp-v3.bin

Pitfalls - there's always something - camera is fiddly - hard to explain, sometimes works sometimes does not, also is labelled as external camera in settings... other camera listed as Back Camera Environment... usb camera (supposed to be compatible with Chromebooks) not working, etc - so camera issues

either try another recovery rom, or wait for cyan 11021.81.0 release...

Reverting to eve/kip as I can use it on all my devices - Acer CB C720P, Acer Iconia W700 & Apple Macbook Air mid 2011...

the small issues are bearable, & camera works.

eve/kip

$ sudo bash chromefy.sh /dev/sdc3 chromeos_11021.81.0_eve_recovery_stable-channel_mp.bin chromeos_11021.81.0_kip_recovery_stable-channel_mp-v3.bin

nami/kip good for Acer CB C720P but camera fiddly

eve/kip great for Acer CB C720P & Acer Iconia W700 with camera good - & Apple Macbook Air mid 2011 - no WiFi, no trackpad.

In conclusion -

[MENTION=281641]Chromefy[/MENTION] made a great script, but it still yields unstable results for Acer Chromebook C720P - the script I hacked (post #1) which uses the vanilla original 3.18 Linux Kernel & [MENTION=4134963]arnoldthebat[/MENTION] R55 (to give R69 Chrome OS) is stable so more useful to me - via [MENTION=228437]xdadevelopers[/MENTION] [MENTION=2762421]androidauth[/MENTION]

Extra note - I believe using original ROOT-A partition for cyan worked so well with original vanilla Linux Kernel 3.18 is due to Acer Chromebook C720P (peppy) has very similar hardware to Acer Chromebook R11 (cyan)

Still waiting for a newer recovery stable ROM, currently R69, & latest for many CBs is now R70...

Many R70 recovery ROMs have Root-A as 2.5 GB - but cyan is 2.0 GB & currently cannot do crostini, is the delay because they are working on upgrading the Linux Kernel to 4.4 (from 3.18)? -

Acer CB R11 was in the list for crostini, unless they now removed it?
[Chromebooks] nabil2000:
NeverWare CloudReady Chromebook clone - revisiting

Discussed my experiments with neverware cloudready here:

https://xdaforums.com/showpost.php?p=76948168&postcount=2

Queried on their website about their plans for Android, they said they will not support,

coupled with R68 of cloudready broke ability to boot from Acer Chromebook C720P - so I lost interest.

>> - Now if the grub fix can fix booting cloudready from Acer Chromebook C720P - that is of interest to me, since they now support crostini.

>> - Also seeing if it is possible to force it to load Android.

Ideally, having arnoldthebat special builds doing also Android in future versions will remove the need to have to rely on scripts altogether.

copied in - chromefy thread -

https://xdaforums.com/showpost.php?p=78434927&postcount=520

Useless, forget it - waste of time -

Why does [MENTION=2019776]neverware[/MENTION] [MENTION=8977063]cloudready[/MENTION] upgrades get worse after each update? -

latest R70 update (from R68) is unusable on Acer Iconia W700 & Macbook Air & Acer CB C720P - RFC - bad customer service too :(
[Chromebooks] nabil2000:
Testing FydeOS on Acer C720P & chromefy on top

FydeOS FydeOS_PC_v5.1dev.img released is in fact Chromium OS R70 -

Installs well for Acer Chromebook C720P, loads well using ctrl-U from a USB, needs to expand storage of /dev/sdx1 to maximum - & expand /dev/sdx3 to ~ 4GB -

all went well.

Used Acer Iconia W700 to do the install from a USB 3.0 hub (it has only one USB 3.0 port)...

How?

1. 2 USB sticks with imaged FydeOS_PC_v5.1dev.img on both, one source FydeOS to work from, other target to install to Chrome OS.

(to image I used win disk imager, but you could do sudo dd if=FydeOS_PC_v5.1dev.img of=/dev/sdx bs=4M - where /dev/sdx is target partition, in my case x=c - /dev/sdc)

2. using gparted from a liveusb,

target usb stick increase size of ROOT-A /dev/sdx3 to at least 4 GB.

both usb sticks expand /dev/sdx1 stateful_partition to maximum size.

3. check both usb sticks source & target boot OK.

4. boot from source (/dev/sdb) usb stick & apply chromefy on target (/dev/sdc) -

my example

sudo bash chromefy.sh /dev/sdc3 chromeos_11021.81.0_cyan_recovery_stable-channel_mp-v3.bin chromeos_11021.81.0_caroline_recovery_stable-channel_mp.bin

5. boot from target, it might work, I had to boot it first from Acer Iconia W700 so it works, as initially would not boot with ctrl-U from Acer Chromebook C720P - then it could both OK from Acer Chromebook C720P.

5b. There might be a way to fix this to boot directly from Acer Chromebook C720P, you're welcome to find it, I couldn't, but am lucky to have both Acer's to play with :) - no concern if you use normal laptop, but might need eve image instead.

The use of cyan recovery image suits me as it has very similar hardware to both Acer W700 & C720P.

So no need to wait for arnoldthebat release as FydeOS works as well with R70 (arnoldthebat plans to release R71 in fact).
[Chromebooks] nabil2000:
FydeOS R70 with chromefy works well on Apple Macbook Air mid 2011

Apple Macbook Air mid 2011 (Intel core i5 chipset)

FydeOS using cyan R70 / caroline R70 - all drivers work, including webcam, WiFi, BT & trackpad -

unlike with Arnoldthebat R69 which was missing trackpad & WiFi...

small caveat - thunderbolt Ethernet pass-through not recognised, which is no big deal...

Important note - you need to use chromefy from a FydeOS install to a FydeOS install to get this to work, otherwise proper drivers won't install (like trackpad won't work) or worse it will not even boot.

This is why I said 2 FydeOS sticks/ssd's, one to install from, & one to install to, i.e. apply chromefy script to.

Another note - with latest Fydeos 5.1 R70 - the ROOT-A partition can be left as is, no need to resize as it is 2.7 GB, enough space to use chromefy & crostini.
[Chromebooks] nabil2000:
FydeOS 5.1 vs Arnoldthebat R69

FydeOS 5.1 (R70) yields better result than Arnoldthebat R69 overall, especially for drivers support.

Arnoldthebat special build R71 needs to address drivers issues for non covered devices in R69.

As for my own hack, it is great if you wish to root Android in Chrome OS R65 through to R70, though it also suffers from lack of drivers even worse than Arnoldthebat R69,

but works great on Acer Chromebook C720P, still crostini not loading even with R70 (crouton is a better alternative to crostini, & with chromebrew one can use a more powerful command line).
[Chromebooks] nabil2000:
Testing FydeOS 5.2 in Acer Chromebook C720P + chromefy...

FydeOS 5.2 removed left menu setting for Play Store - it's still there but you can only invoke it when it's updating apps, good idea to pin it to the task bar.

They claim they improved loading & usage for crostini - might test it.

It does not solve the camera migration issue to open camera from within Android for non Chromebooks. Also no access to the native camera from menus.

The webstore camera is functional from within Chrome OS (like for FydeOS 5.1)

Someone complained in the chromefy alesimula thread that it is a CPU hog, cannot confirm it.

I will test it for chromefy & report. I suspect same results as for FydeOS 5.1

Also it is still R70 - not R71 as I would have hoped :)

Test results -

with chromefy cyan/caroline

no difference to FydeOS R70 v5.1 - so far...

- crostini loads slightly faster

and there is Chrome OS without my hacked script, chromefy, arnoldthebat...

FydeOS 5.1 / 5.2 can be used to replace Chrome OS on PCs using a Google account, as described here -

https://xdaforums.com/hardware-hacking/chromebooks/fydeos-google-sync-using-fydeos-account-t3872442

It can be made to behave like an ordinary latest Chromebook, the only thing not working is using camera within Android.

Tested & after jumping all the hoops, works OK on Acer Chromebook C720P - no need to use chromefy at all - some caveat might be having data transferred to the FydeOS team :( - as the FydeOS controller & Android for FydeOS stay in the hidden FydeOS account (if you powerwash)...

FydeOS will still be there if you do not powerwash.

Powerwash is with:

sudo mkfs.ext4 YOURDATAPARTITION (Ex: /dev/sdc1)

Important Note - FydeOS converted to Chrome OS ends up becoming very unstable...

using chromefy + powerwash corrects this...

therefore FydeOS alone is not the best solution to update/upgrade Acer Chromebook C720P...

Currently I have two USB sticks, one with FydeOS 5.1 & one with 5.2 - just in case, I will keep updating them with future versions.

FydeOS notes copied from - https://xdaforums.com/hardware-hacking/chromebooks/fydeos-google-sync-using-fydeos-account-t3872442 ...
[Chromebooks] nabil2000:
New images alternatives to Arnoldthebat, FydeOS

New images alternatives to Arnoldthebat, FydeOS

ArnoldTheCat v2: https://drive.google.com/uc?id=1O1EX9j0QaeEby9GYPrPkRwQMabrI_3Z0&export=download

EmydeOS v2: https://drive.google.com/uc?id=1wDbpxAgQVox7rkO2VnQfZWh60gG94MF3&export=download

CloudRadish v2: https://drive.google.com/uc?id=1QBcLTeDDB1je2oAK1NtE_P5O7_HVcQ2C&export=download

Test results -

ArnoldTheCat v2: not booting on Acer Iconia W700, not booting on Acer Chromebook C720P

EmydeOS v2: not booting on Acer Iconia W700, not booting on Acer Chromebook C720P, not booting on BBEN ICS, not booting on Macbook Air mid 2011

CloudRadish v2: assume same not working, do not wish to waste more time on badly compiled Chromium OSes...

actually, I tested it after all on a spare USB stick - it seems to be indistinguishable from Arnoldthebat R72...

it booted well on LPE BBEN ICS cherry trail stick from USB - will now test if it has video graphics for Acer CB C720P (I doubt it...)

As suspected it does not boot.

I also suspect CloudRadish v2 is just Arnoldthebat R72 repackaged, or just copied as it says in the menu compiled by tonyd...

if correct that is unfair & theft from arnoldthebat, so not cool :(

Actually not a copycat of arnoldthebat as there are slight differences such as: non working cros shell, wifi working on Macbook Air mid 2011...

I will test FydeOS 5.3 instead...

Arnoldthebat R72: booting OK on Acer Iconia W700, no BIOS graphics on Acer Chromebook C720P.
[Chromebooks] nabil2000:
Testing arnoldthebat R72 with nocturne

arnoldthebat released Chromium OS R72 instead of R71...

here - https://arnoldthebat.co.uk/wordpress/2019/01/06/chromiumos-enhanced-special-build-r72-11316-b/

It installs OK on Acer Iconia W700 hybrid tablet.

It does not have graphics for Acer Chromebook C720P - which is surprising, so could not test it.

With new resources, a new chromefy & a TPM 2.0 hack, Nocturne can be installed on Acer W700, yields Android v9 Pie...

caveat - still no webcam from within Android as Camera Migration does not work on non Chromebook...

other pitfall - camera from webstore does not work either, + did not install ubuntu via crouton, so no idea if camera can be accessed at all :(

latest testing - in crouton ubuntu bionic xfce4 - webcam & usb webcam work, so there is access to camera, just that chromefy breaks it (on Nocturne with ABAT R72)

camera works in Arnoldthebat R72 - but gets broken when chromefied with Nocturne...

I will test the other images above to see if any of them has graphics drivers for the Acer CB C720P...

more details later...

Command used (latest chromefy)

sudo bash chromefy.sh /dev/sdx3 chromeos_11151.33.0_nocturne_recovery_stable-channel_mp.bin swtpm.tar

(x=c in my case)

Note: ATB said he will increase the size of the ROOT-A (/dev/sdx3) partition to 4GB from 2GB - still not done :(

So I reduced the size of ROOT-B (/dev/sdx5) which is not used to 100 MB & increased ROOT-A to fill to 3.9GB.

Oddities, peculiarities, strangeness -

Using $ sudo bash chromefy1.sh /dev/sdc3 chromeos_11151.33.0_nocturne_recovery_stable-channel_mp.bin swtpm.tar gives strange error at end:

sed: can't read /home/chronos/local/etc/camera/camera_characteristics.conf: No such file or directory

RFC? comments?

As I installed to SSD, some USB to SATA interfaces do not allow booting, weird that.

I hope the next Arnoldthebat R72 update will iron out issues, especially the camera/usb camera not detected issues for Nocturne, & bios graphics for Acer CB C720P

or maybe I should learn how to compile my own versions of Chromium OS :) ;)

Note to arnoldthebat coder -

On Acer CB C720P

I just tested https://chromium.arnoldthebat.co.uk/.testing//chromiumos_image.bin.gz

which is an alpha release of R73 - no dice, it gets even worse it returns to the white screen - neither ctrl-U nor ctrl-L works...

It does boot & works with caveats on other x86 laptops such as Acer Iconia W700 & Chromebook Air mid 2011, one of the caveats is webcam not working with error File System error...

R69 is the last one that works for Acer CB C720P...

RFC why didn't you compile R71? can you point me to instructions on how to compile an image, I'd like to learn how to do it, & see if I can solve issues for myself :)

https://github.com/arnoldthebat/chromiumos/issues/227

https://github.com/arnoldthebat/chromiumos/issues/237
[Chromebooks] nabil2000:
using my hack on ABT R72 in post #1 with ABT & cyan yields crostini

I used my hack instead of chromefy - using cyan R70 on top of ABT R72

surprise, crostini works - however it cannot be used with Acer CB C720P, only ABT R55 does the job for that, but no crostini...

As FydeOS released version 5.3, I will see if it can be chromefyed with Nocturne, so far FydeOS is the only one which works with Acer CB C720P for latest releases.

All the ones I tested apart from ABT & FydeOS are not good.
[Chromebooks] nabil2000:
FydeOS v5.3 nocturne, eve, cyan, caroline...

Best outcome with google assistant - FydeOS v5.3 & chromefy eve/kip or eve/caroline -

you get Chrome OS R70 with Android 7.1.1 on Acer Chromebook C720P

good enough for most needs...

PS - please note that eve does not allow camera migration to Android on Acer CB C720P -

to get camera working from within Android, you need cyan / caroline (or kip) instead...

with cyan no google assistant though, so tough... or buy the google chromebook pixel slate if you're rich :)

Android Pie (9) is just extra cosmetics,

& ATB R72 with Nocturne still buggy (& no camera), so not worth it until bugs are sorted out ;)

Note - I can get Nocturne on Acer Chromebook C720P by not using the last argument in the chromefy/chromefy1 command line & FydeOS 5.x as base (ATB r72 cannot boot) -

issues still no camera & worse no Android.

eve/caroline on C720P not bad with Google Assistant...

Note 2 - Interesting development - nocturne then eve - after formatting /dev/sdx1 (powerwash) on Acer CB C720P I ran chromefy1 again, this time with eve/caroline, & made sure I answered yes to keep local files, & no for selinux permissive - result camera migration worked - maybe having installed nocturne first allowed for some missing files/settings to correct themselves - so R70 eve/caroline give camera access to within Android like R70 cyan/caroline & eve/caroline also gives google assistant - so it looks like the system is complete.
[Chromebooks] Hnk1:
Hi mate

I have been following your updates for a while. Thanks a lot mate for updates and all your work.

I was wondering, what is the best combo till now for c720P in which i can use google play and crostini ?

I have managed to run play store from usb from your guide and want to have it on hard drive. What are my options ?

Thanks alot