[Q] what is ULF kernel? - Vibrant Q&A, Help & Troubleshooting

I was wondering that what is ULF kernel? I am using Bionix 1.3.1 with Overstock 1.5 now, I want to flash Trigger Rom then flash the Overstock 2.1 kernel. Is that will work?
I saw that in Overstock 2.1 page," Flash through RED RECOVERY only to install. If you're on a ULF kernel, flash back to a stock+Voodoo kernel first" . What is ULF kernel? Is there any different Kernels, what r the difference?

pxc668 said:
I was wondering that what is ULF kernel? I am using Bionix 1.3.1 with Overstock 1.5 now, I want to flash Trigger Rom then flash the Overstock 2.1 kernel. Is that will work?
I saw that in Overstock 2.1 page," Flash through RED RECOVERY only to install. If you're on a ULF kernel, flash back to a stock+Voodoo kernel first" . What is ULF kernel? Is there any different Kernels, what r the difference?
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ULF stands for universal lag fix. It's a type of kernel that can use a variety of different file systems. I don't think anyone is using it anymore because it wasn't very stable. If you are going from one version of Overstock to another you should be fine.

The last kernel it was most commonly used in was Eugene's deadhorse

pvspencer22 said:
The last kernel it was most commonly used in was Eugene's deadhorse
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Yes which used to be my favorite kernel .
Great battery life on jfs lagfix. But I don't see much differences using overstock.. so I'm using overstock noww
axura 2.3.0 with adw launcher ex

uuuuugh i tried dead horse yesterday....and it wiped my entire phone

Rayn1328 said:
uuuuugh i tried dead horse yesterday....and it wiped my entire phone
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It was a good idea it just never seemed to work properly. The old ULF kernels would eat my battery in like 8 hours.

Related

[Q] How to revert to stock kernel w/o wiping?

I want to install Bionix 1.7 w/ JACs OC kernel. I have flashed his kernel before, but i want to know, can I flash the stock kernel and just lose my OC? In case I have to go back to stock Bionix.
So, can I expect to flash the stock kernel on top of Bionix 1.7 to get rid of JACs kernel?
SamVib said:
I want to install Bionix 1.7 w/ JACs OC kernel. I have flashed his kernel before, but i want to know, can I flash the stock kernel and just lose my OC? In case I have to go back to stock Bionix.
So, can I expect to flash the stock kernel on top of Bionix 1.7 to get rid of JACs kernel?
Click to expand...
Click to collapse
I don't think this will work, I'm not 100% but since his 1.7 build is based off of the JI6, I believe the kernel is different and this might mess some stuff up for you. Please someone correct me if I'm wrong
If I decide to go back to stock, I'll have have to use odin? When I was using 1.4 w/ OC, I flashed stock kernel via clockwork. then I soft bricked :O

[Q] bionix v kernal swaping

Greetings! Just a quick question. I recently flashed bionix v 1.3.1 (just amazing).
I then had to take it to thee extreme and flashed destroyer of worlds kernel on it.( again amazing) my question is this. I notices after flashing the kernel my version changed from bionix
To nero w/destroyer of worlds. Soon is this still bionix? Or did the kernel flash nero b4 over
Bionix? Also if I wanted to try the dragon kernel out, can I flash over the down kernel? Or
Should I reflash thee original bionix back and then proceed to flash dragon as I did with
dow? Sorry im just confused why my build went from bionix to nero with a kernal and not a
Rom. Love it either way.

Voodoo Not Working In Bionix-V 1.3.1 TouchWiz Edition

I have 2 Samsung Vibrants( t-959 ), and I installed two versions of Bionix, and still, no voodoo! It says something about the kernel not supporting extended sound controls.
Additional Info -
Firmware: 2.2
Baseband: T959UVKB1
Kernel Version: 2.6.32.9
Build Number: Bionix-v 1.3.1 By Team Whiskey
Please help... Thanks!
Just try flashing a different kernel instead of a different ROM. Try Overstock or Tiger's Blood and see if that makes a difference.
I didnt know you could flash just the kernel! Thats pretty cool... Now how do I do it without messing up? Is there a tutorial, or do you just go into recovery, and install the sip like you would a ROM?
Did you go into recovery and enable voodoo and enable it to change your file system?
There are plenty of guides, take a look in the Bible or simply google, "how to flash kernel, vibrant."
Yes.
Here is a link to the kernel I'm using.
http://forum.xda-developers.com/showthread.php?t=967861
My phone can handle the 2.2 version, but I would start out with the 1.4.2 version and see how that treats you.
In case you don't know, flashing through red recovery is done by pushing your power button and selecting Recovery, not by using clockworkmod.
siconic said:
I have 2 Samsung Vibrants( t-959 ), and I installed two versions of Bionix, and still, no voodoo! It says something about the kernel not supporting extended sound controls.
Additional Info -
Firmware: 2.2
Baseband: T959UVKB1
Kernel Version: 2.6.32.9
Build Number: Bionix-v 1.3.1 By Team Whiskey
Please help... Thanks!
Click to expand...
Click to collapse
You have voodoo, just not voodoo sound or color. Bionix 1.3 uses stock kernels so like others have said you should flash a custom kernel like Overstock. You flash kernels the same way you flash ROMs
Thanks for all the replies! Just to make sure I got this right, I downloaded and put onto the phones SD card Overstock 1.4.2. Now all I have to do is boot to Red Screen recovery, select the zip, and intall... Is this correct, or am I missing a step? I already backed up the stock ROM.
Settai said:
You have voodoo, just not voodoo sound or color. Bionix 1.3 uses stock kernels so like others have said you should flash a custom kernel like Overstock. You flash kernels the same way you flash ROMs
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Click to collapse
Hence the reason I said to flash Overstock or Tiger's Blood. You can even use Kernel Flasher from the market.
siconic said:
Thanks for all the replies! Just to make sure I got this right, I downloaded and put onto the phones SD card Overstock 1.4.2. Now all I have to do is boot to Red Screen recovery, select the zip, and intall... Is this correct, or am I missing a step? I already backed up the stock ROM.
Click to expand...
Click to collapse
Correct, my friend. Just let us know if you have any other issues.
Thanks again guys! Only problem is I dont see that the Kernel was updated. Oh well, at least everything on Voodoo now works, and some of my apps seem to have a few new features... Plus it is QUICK! I went from 12.86 to 14.74 on linpack!

SC 2.9 voo doo

Warning Noob Question:
So I flashed sc 2.9 nv. Does the sc 2.9v rom include a voo doo kernel or would I flash the kernel then flash the 2.9v rom? Also is this worth my time. Everything seems to run smooth as is. Will voo doo give me any noticable benefits?
Thanks
Superclean comes with either a voodoo kernel or a nonvoodoo kernel depending on which one you install. But in reality, its better to flash some of the custom Froyo kernels afterwards for a bit more umph.
Sent from my SCH-I500 using XDA Premium App
What kernel would you recomend
pwshadow said:
What kernel would you recomend
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Newest comavolt kernel
Sent from my SCH-I500 using XDA App
I cant find one thats non touchwiz
Or imnuts' latest I think it's 330, works great for me
What advantage does that have over the standard eb01 voodoo kernel?
Well it looks like it doesn't matter because I cant flash them anyway. The only Kernels I can find wont flash using cwm 3. I cannot find an older version of cwm anywhere.
SC should have installed cwm 2.5 at the same Time. The fascinate still use cwm red, not orange.
Also I would install jt's new ec10 based voodoo kernel. Yes it's TW but it's stable and clean.
Sent from my SCH-I500 using XDA App
What happens if I flash a tw kernel with a rom that isnt?
voodoo kernel, IMO, since it utilizes the faster ext4 file system instead of the stock samsung one.
Ok so i tried flashing a bunch of different cwm versions and eventually started getting an error in cwm when i did a boot to recovery through Rom Manager. So i did the normal boot and when it pulled up it was red lettering and said CWM Voodoo lagfix recovery 2.5.x. So I figured while i was there i would try to flash the voodoo kernel in my sd card and it worked. Creepy robot voice and all. Now im wondering what I did and if maybe i screwed up something since my CWM 3 doesn't seem to be working.
You don't want CWM 3 to work. With the Fascinate, you need to stay on 2.5.x.x because CWM 3 is written for the newer edify scripting. Fascinate still uses amend scripting.
Awesome. Thanks for all the help. One more question. Is it a necessaty to download setcpu with voodoo? am i going to hurt my phone without it?
No it's not necessary, and it won't cause any damage. Over/under clocking your CPU can be of some benefit (performance vs. battery life when idle), but it is definately not mandatory.

Here's a stupid question

After I rooted my phone, I simply installed Bionix 1.3 on it and that was it.
Do I NEED to install a kernel? What does that do exactly?
Everything has been running fine on my T-Mo Vibrant with the Bionix, but would the kernel help in any way?
Thanks.
Read the ROM OP. A kernel is usually prepackaged. Understand your ROM first, then start working with different kernels. Go to the Bible stickied in the forum and you'll see links to all the kernels.
Kernels come with all custom roms. With Bionix roms, they all come with a stock + Voodoo kernel. Its is a stock kernel that has the Voodoo lagfix built in and comes preactivated. Custom kernels have more tweaks and features than the stock voodoo kernels, like Voodoo sound, Overclocking and Undervolting abilities, and more. I advise you research the advantages and disadvantages of installing custom kernels. Until you have done your research about them, i suggest you stay on the stock+Voodoo kernel for now. Once you think you're ready for a custom kernel, please choose one that is up-to-date and was built to work on Froyo roms, like Bali, Bali-X, Bullet, and Immortality.
Okay, so my question then is, with the Bionix them, if I wanted to install Bali 1.8v
http://forum.xda-developers.com/showthread.php?t=1043947
Would I just do that via Clockwork Mod, then reinstall the Bionix ROM?
Or would that be too messy and possibly screw something up?
Thanks Mr. Apocalypse
You can flash kernels through CWR or SGS Kernel Flasher (in the market). Thing is, the I agree with Mr Apocalypse, you need to be reading and checking out things or your next post will be, "I bricked my phone, how to I fix it?"
This is directly from the OP of the Bionix ROM thread.
Optional Kernels:
NOTE:
Team Whiskey is not liable and takes absolutely no responsibility for any damages. Overclocking your phone adds additional stress to your hardware, so please understand the risks involved before you decide to overclock. Not all devices overclock the same, so please test the different clock speeds and see which one works best for you. Many times, certain devices will not accept an overclock at all. If you fall into this category, you will have to flash back to a stock kernel.
(all of these kernels have been compiled from official Vibrant 2.2 source code. They are include voodoo sound, voodoo color, and bln support. Bionix-v 1.3.1 already included the necessary apps for these features. Test these optional kernels and see which one works best for you!)
OverStock v1.3 by cmenard
DoW14 v1.1.1 by Morfic
Dragon v5.0 TEST1 by Ttabbal
Categorically Worthless by s0niqu3
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Click to collapse
koooba said:
Okay, so my question then is, with the Bionix them, if I wanted to install Bali 1.8v
http://forum.xda-developers.com/showthread.php?t=1043947
Would I just do that via Clockwork Mod, then reinstall the Bionix ROM?
Or would that be too messy and possibly screw something up?
Thanks Mr. Apocalypse
Click to expand...
Click to collapse
After you flash Bionix, then flash Bali. You can do that in ClockWorkMod Recovery or SGS Kernel Flasher, i prefer to use CWM Recovery because sometimes the app doesnt install some special files that are needed for things like BLN to work. But either way is ok, just dont reflash the rom afterward or you'll be back on the stock+Voodoo kernel
Bali is a great choice, drhonk builds those rock solid.

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