Database Develop

How can I remove the splash screen for output text of kernel startup?

is this can be done just in the kernel source?
can any body provide some info or suggestions? sample is better
thx.

theory is: replace bootanimation from /bin with a blank script. Make sure you backup your bootanimation in case that doesn't work

I like this idea too! It appeals to my nerdiness.

Sadly however it is not this easy. This is something I have wanted for a while and I have tried this. It just gives a black screen. If you look at the source code for bootanimation it even has a disable option(statically set to 0), if this is enabled and recompiled it also just yields a black screen. I think we would need a way to display via opengl or whatnot.

Text output would kick ass

thank you all guys, at least I get some response
I have some thoughts, I will try some different way to make it possible.
jubeh said:
theory is: replace bootanimation from /bin with a blank script. Make sure you backup your bootanimation in case that doesn't work
Click to expand...
Click to collapse
not boot animation, just the first splash screen. there are no /bin since nothing have been mounted.

I found bootanimation in /system/bin
Code:
mount -o remount,rw /system
cd /system/bin
cp bootanimation /sdcard
rm bootanimation
And now maybe my phone startup faster, but i have black screen instead of booting text output...
Any other ideas?

[Q] Bootanimation infinite loop - please help

Hi All,
I hope you can help me - I promise I've searched for a solution!
I downloaded a few new boot animations to try on my CM6 install (on G1).
At first I tried simply copying a bootanimation.zip to /data/local and rebooting. So far so good - the animation worked perfectly. Then it looped, and looped, and...well you get the idea. Phone no longer actually booted!
No problem I thought, I'll get a flashable zip and flash a new animation using the recovery console (Amon_RA's). Did that, and it changed the animation OK, but still no dice on the OS loading (waited 10 mins plus to be sure).
For info, the animations were the pc-style one from Superbad Eclair and the CM6 one for the N1 (big X with the little android in the middle). Both worked fine and didn't freeze or anything, but they won't stop looping.
Tried the recovery console, but my linux exp. is limited and I didn't manage to access /data/local to delete bootanimation.zip (can cd to data but ls in data shows nothing - I guess it's coz I'm in recovery).
Getting a little worried here - can someone please suggest a solution that doesn't involve re-flashing CM6?
UPDATE: Tried flashing two more anims (R2D2 and Matrix from this forum) and no dice - Nexus 1-style animation stays. Basically, I've made no progress and I'm more confused.
UPDATE 2: Ah well I got too impatient and re-flashed CM6. Jeez there are a lot of settings to change. Anyhoo, will leave thread here for a bit in the hope that someone tells me what the issue was, so I can change my boot animation in future w/o fear.

The problem I think ur having was u copied it to the local file ur suppsed to install it straight onto the sd then open emulator and enter
Su
Cp /sdcard/bootanimation.zip /data/local/
Reboot
Sent from my HTC Dream using XDA App

I had the same issue. All I did was
I used abd push bootanimation.zip data/local/ "to install"
adb shell
#rm /data/local/bootanimation.zip
You can actually still do it even though the boot animation is running.
Freaked me out i didn't want to start over on Angry Birds.

[Q]Bootanimation Black Screen

Hi guys,
I realized my bootanimation, but it doesn't work!
Can someone look at it?
When I flash it and restart the screen become black and then It loads home screen!
Thx

Try this. Also are you putting it in the right spot and setting permissions appropriately?

yes, I use the adb with the command
adb push bootanimation.zip /data/local/
but I never change de permission, how can I do?
Using the terminal and chmod 7777?
Thx a lot, it works!
But when I restar the phone, after the bootanimation the phone starts "locked" and I've to push the power button and slide down to use it.
I've got a HTC WildFire

"Stuck" on Nexus Prime boot animation

Hi,
I've downloaded and installed though recovery mode the boot animation from Nexus Prime on my Galaxy S but now that animation doesn't leave my screen anymore, it keeps running in the foreground even after boot is complete. I can feel and "interact" with the home screen in the background but I'm totally blind.
Already attempt to install Samsung stock boot animation back and also other ones without any success. Prime animation is still there.
Anyone here had the same issue or know some smarter and better way to remove this without have to install custom rom back? Unfortunately I don't have a backup for everything :/ (lessons learned)
Appreciate your attention and help!
- Willian

Get to recovery and try connect your phone via adb, then replace the boot animation... But it sounds like the boot animation may not be the issue...

I've tried to mount /system and move the boot animation to /system/media without any luck, getting 'permission denied' everytime.
C:\android-sdk-windows\platform-tools>adb push GalaxyS-Edify.zip /system/media/
failed to copy 'GalaxyS-Edify.zip' to '/system/media//GalaxyS-Edify.zip': Permis
sion denied
Click to expand...
Click to collapse
/system/media $ mv /sdcard/GalaxyS-Edify.zip /system/media/bootanimation.zip
mv /sdcard/GalaxyS-Edify.zip /system/media/bootanimation.zip
mv: overwrite '/system/media/bootanimation.zip'? y
y
mv: can't remove '/system/media/bootanimation.zip': Permission denied
Click to expand...
Click to collapse
Any idea?
Thanks again!

You could try to make an update.zip which replaces the nexus prime bootanimation with the stock one.

I'll give a try. First time creating an update.zip but let's see if it works.
Thank you.

Nothing ;/
unless I've made something wrong

Im not too familiar with adb but ill give it a shot... Btw you have root and busybox installed?
Get to recovery..hopefully debug is on, plug it in..
Get to platform-tools as you did, then type
adb devices (you should see your device, if not close it all and install the drivers again from kies, then try again...)
type the following, after you have got to platform-tools using the cd command
adb shell mount /system
nothing should show up
you know where the bootanimation is? if not find it, using "adb shell ls /" this will show all the directories, carry on searching it till you find it
next you want to move it so like you did...or like this
"adb shell rm /system/media/bootanimation.zip"
Now check its gone, using the ls command
now put yours in.. rename it to bootanimation.zip
"adb push C:\your full directory of where it is with bootanimation.zip /system/media"
and it should say that its gone....
hopefully that all works..
let us know

Hey Talon, thanks for helping me out, really appreciate!
Hmm, yes for root but no quite sure about busybox now.
I found bootanimation.zip inside /system/media and there's also a bootanimation file inside /system/bin but not quite sure what it's used for.
Got a permission problem when trying to remove the .zip file:
C:\android-sdk-windows\platform-tools>adb shell rm -f /system/media/bootanimatio
n.zip
rm: can't remove '/system/media/bootanimation.zip': Permission denied
Click to expand...
Click to collapse
C:\android-sdk-windows\platform-tools>adb shell chmod 755 /system/media/bootanim
ation.zip
chmod: /system/media/bootanimation.zip: Operation not permitted
Click to expand...
Click to collapse
What am I missing?
Regards.

Ok maybe you know more about these commands but why did you type "-f" after rm? have you tried without it?
In the second box you were trying to change permission (had to search that ) why not change it to 777 for full, and instead apply it to the directory, so the media folder then try...
have you tried just pushing the new file to the media folder?
Btw why not just try flash a new rom either through recovery or odin. I guess you can try this so you don't loose anything, but i think that would be the simplest of things to do. You will loose apps and settings, but int sd should still be there.
Anyway see how that goes...
Just seen this says to remove you can use "adb shell rm -r" so add "-r" instead of the f that you did.
Oh and lastly, if you still cant do that, try copy the whole media folder, make sure you have everything by using ls /system/media then try remove the media file and put it all back with your new boot animation.. (dont forget to rename the bootanimation

Not really, just a few commands. The "-f" just removes the file without the need to confirm your action but no enough permission to perform such action and I'm not able to change this.
I have been trying many ways to move the file to the media folder but could not find one that works yet.
Hmm, I would like to avoid that :/ but maybe it's the only way.
I think my problem here is that I can't get superuser access. When I type "su" I just get a segmentation fault message. Couldn't find a way to fix that yet.
Thanks.

willian7 said:
Nothing ;/
unless I've made something wrong
Click to expand...
Click to collapse
Try to flash this update.zip threw your cwm, just go to install zip from sdcard and choose the update.zip, sure first you have to copy it to your sdcrad . (i've tested it, for me everything worked fine)
hope i was able to help

[Guide] How to fix black screen of death after dirty flashing lollipop

On threads of lollipop flashing, There are quite lots of people asking about the black screen issue, but not really clear solution's out there.
These are the symptoms:
1. After booting, you get black screen with just upper notification bar and back button below
2. If you turn on the screen after a few second, you see the normal screen but only for a fraction of second.
3. You can hear some notification sound, but notification bar still says "no notification" (or something, well I'm not using english ui )
4. no response on cancel button
The reason is that, you've set a lock screen before, but your phone thinks you've never performed initial setup, so your phone gets confused and doesn't know what to do.
You can solve this by deleting /data/system/gesture.key (for gesture lock) or /data/system/password.key (for password lock) on recovery mode. Now your lock screen's gone, and you can normally boot your phone. If you're doing this on recovery, you should mount /data partition to locate the file.
There could be some other problems because your phone still thinks that you haven't initiallized it, so you should manually run initial setup by "adb shell am start -n com.google.android.setupwizard/.SetupWizardTestActivity" on normal boot.
I hope this helps!
credit : @nighthammer http://forum.xda-developers.com/showpost.php?p=56715651&postcount=7664

FreakyTux said:
On threads of lollipop flashing, There are quite lots of people asking about the black screen issue, but not really clear solution's out there.
These are the symptoms:
1. After booting, you get black screen with just upper notification bar and back button below
2. If you turn on the screen after a few second, you see the normal screen but only for a fraction of second.
3. You can hear some notification sound, but notification bar still says "no notification" (or something, well I'm not using english ui )
4. no response on cancel button
The reason is that, you've set a lock screen before, but your phone thinks you've never performed initial setup, so your phone gets confused and doesn't know what to do.
You can solve this by deleting /data/system/gesture.key (for gesture lock) or /data/system/password.key (for password lock) on recovery mode.
after that, you should manually run initial setup by "adb shell am start -n com.google.android.setupwizard/.SetupWizardTestActivity" on normal boot, to avoid several problems.
I hope this helps!
credit : @nighthammer http://forum.xda-developers.com/showpost.php?p=56715651&postcount=7664
Click to expand...
Click to collapse
This would be sweet except for some reason I hadn't accepted the adb authorization request on my device before I went all darkscreen duck.
wipe it is.

perdid0 said:
This would be sweet except for some reason I hadn't accepted the adb authorization request on my device before I went all darkscreen duck.
wipe it is.
Click to expand...
Click to collapse
You can delete the file via recovery, with file explorer or adb.
Since you have to unlock the bootloader to flash a factory image, you can flash a recovery image any time if you need one.

FreakyTux said:
You can delete the file via recovery, with file explorer or adb.
Since you have to unlock the bootloader to flash a factory image, you can flash a recovery image any time if you need one.
Click to expand...
Click to collapse
i cannot find that file in the location you specified. any other suggestions for locating it?!
---------- Post added at 09:23 AM ---------- Previous post was at 09:16 AM ----------
actually.......i found it!!!! same place you said!!! deleted both .key files and rebooted.......the screen was gone allowing me to accept the adb autorization and run the setupwizard!!! woot woot.....thanks a billion!!

perdid0 said:
i cannot find that file in the location you specified. any other suggestions for locating it?!
---------- Post added at 09:23 AM ---------- Previous post was at 09:16 AM ----------
actually.......i found it!!!! same place you said!!! deleted both .key files and rebooted.......the screen was gone allowing me to accept the adb autorization and run the setupwizard!!! woot woot.....thanks a billion!!
Click to expand...
Click to collapse
I'm glad that it helped!:highfive:

Hey man, thank you for your post !
I delated the file you said, but i didn't understand what should I do then ? Does it work if I don't do that adb setup (that I don't know what it is..)
Thank you for your help !

jordanl68 said:
Hey man, thank you for your post !
I delated the file you said, but i didn't understand what should I do then ? Does it work if I don't do that adb setup (that I don't know what it is..)
Thank you for your help !
Click to expand...
Click to collapse
Check the help threads for Nexus devices, there are "how-to" ADB & fastboot guides just everywhere. It works for all Nexus devices just the same way.
tetakpatalked from Nexus 7 flo

Please add this to your post. I had the black screen, but I never had a password set up. The black screen was happening because before I flashed an update, I had a system profile set to bypass the lockscreen. Once I put it back on the default profile (which you can do from the notification bar) everything was fine.

HELP! BLACK SCREEN ISSUE (Lollipop)
I flashed cm12 on my Galaxy Grand 2,but everytime i push the power button to unlock the screen,All i get is a black screen.I can hear touch sounds and responses and the harware buttons light up,but that's it.The black only goes on rebooting and I have to reboot my phone everytime I unlock it.Please Help?

Better Explanation
To make this guide appear better , and make it more easy doing etc etc..
Add this instead of a line method (well explained)
Download Aroma File Manager
Place it in your scdard directory
Boot in recovery
Mount Data
Go to Install and flash this zip..
Navigate to /data/system
Now delete password.key if a normal password or
gesture.key if a gesture

akastixx said:
Please add this to your post. I had the black screen, but I never had a password set up. The black screen was happening because before I flashed an update, I had a system profile set to bypass the lockscreen. Once I put it back on the default profile (which you can do from the notification bar) everything was fine.
Click to expand...
Click to collapse
I don't understand what you're saying. I've never seen "system profile set to bypass the lockscreen". could you tell me more specifically?
Aman_Arora said:
To make this guide appear better , and make it more easy doing etc etc..
Add this instead of a line method (well explained)
Download Aroma File Manager
Place it in your scdard directory
Boot in recovery
Mount Data
Go to Install and flash this zip..
Navigate to /data/system
Now delete password.key if a normal password or
gesture.key if a gesture
Click to expand...
Click to collapse
Thanks for your help. that's also a great workaround, but you know, it was nexus 5 that I was working on. If you were to place the file on the device, you would have to use adb anyway.

how can you do anything while screen is black? You just do not have any options displayed. I mean I am a layman

As everyone involved seems to be new to rooting, judging from the number of posts , tell them to READ READ READ . There is something called running before you can walk.

A clean install avoids the BS to begin with ...

Doesn't work with Nougat 7.1.1 (Dark ROM)
Does anyone know what if this solution works with Nougat 7.1.1 (Dark ROM)? I couldn't find the given files under /data/system, but I've found one as gatekeeper.password.key. However, if I delete it and reboot, I still get black screen.
Also, trying to run the setup wizard using ADB gives me a "SecurityException: Permission Denial: starting intent { ... } from null ( ... ) not exported from uid 10020".
Any ideas?