At what point do I install a new Kernel?
I'm about to flash a new ROM and it is recommended to use a particular Kernel. At which point do I do this? Just before the first boot? After the first boot?
Thanks!
Kernel comes with the ROM you are flashing. So my suggestion is to try the one that came along with the ROM. If for some reason you are not satisfied with it may it be high battery drain, undervolting, overclocking, or missing governor options, that's when you look for another kernel.
There are 2 types of kernel for Desire, Sense based or AOSP based. You can't use one with the ROM based with the other.
You install new kernels the same way you flash a ROM. Kernel comes in a flashable zip. ONLY wipe dalvik and cache before flashing a new kernel. No need to wipe system at this point. Yeah flash it after the first boot, although flashing it right after the rom wouldn't hurt I believe.
Just flash it right after you flashed the ROM.
MatDrOiD said:
Just flash it right after you flashed the ROM.
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Okay thanks a bunch!
Cheers! That's what I was after! ;-)
Sent from my HTC Desire using xda premium
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Hi i am pretty new to his i have upgraded to CM7 and everything works fine but i noticed posts about changing the kernal, I am now looking to change to a new rom, the RCMIX do i have to change a kernal or shall i just full wipe and install rcmix zip from the recovery
xvicedice said:
Hi i am pretty new to his i have upgraded to CM7 and everything works fine but i noticed posts about changing the kernal, I am now looking to change to a new rom, the RCMIX do i have to change a kernal or shall i just full wipe and install rcmix zip from the recovery
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Just a full wipe, and flash RCMIX from recovery that will install it's own kernel.
i believe you come from Samsung or any other device where you need to flash kernel first and then flashing rom.
HTC is different, the rom itself contain the kernel. Just flash the rom, it contains the kernel.
Try out the ROM first, and then if you want to further optimize your overclocking, you can try other kernels. (usually the built in rom will work just fine)
Personally I recommend Jkoljo's utility to do that
If you do find a kernel you like and you flash another ROM you will have to re-flash the kernel again.
This is because, as previously stated, ROMs will install their own Kernel.
Sent from my Desire HD using XDA Premium App
So, there is Haus's thread which provides download links to the ROM, Kernel and Radios.
I am currently running Salvage Mod and a Tiamat kernel.
If I flash the 2.3 OTA ROM while still running the Tiamat kernel, will I run into issues?
Mindspin_311 said:
So, there is Haus's thread which provides download links to the ROM, Kernel and Radios.
I am currently running Salvage Mod and a Tiamat kernel.
If I flash the 2.3 OTA ROM while still running the Tiamat kernel, will I run into issues?
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No because after you flash you will no longer be running the Tiamat kernel you will be running the new stock HTC kernel. Flashing the ROM flashes the kernel as well.
zone23 said:
No because after you flash you will no longer be running the Tiamat kernel you will be running the new stock HTC kernel. Flashing the ROM flashes the kernel as well.
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Oh...
I was under the impression (based off the links provided in the other thread) that the ROM and kernel needed to be flashed separately.
Thanks for clarifying!!
Mindspin_311 said:
Oh...
I was under the impression (based off the links provided in the other thread) that the ROM and kernel needed to be flashed separately.
Thanks for clarifying!!
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Generally no I flashed it on my EVO and didn't flash any thing else. You might want to go back and take another look I will as well but that generally not the case they come with the kernel.
To flash back to sense you don't have to do anything special. You don't have to nandroid back to sense or anything like that. The only thing you have to do is clear user data, cache, and dalvik cache then flash. You don't need to restore anything first. I saw your other post. Also I'm fairly positive that the ROM has the kernel but if you want to be safe download the kernel as well and just stick it on your storage card just in case.
Remember clearing user data will wipe all of your apps and data.
The kernel is a modified one just incase you have the brightness bug still I think.
When I flashed the new mikg v1.0 i know I still did but I flashed that kernel and it fixed it but I never flashed one of the new stock ROMs cause of the 1.0 sense on it.
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This may be a stupid question, but it's one I've never seen a definative answer for. When installing a new ROM and Kernel, which should be installed first, or does it not matter, and should you reboot recovery between installations, or just install one over the other?
If the ROM includes the kernel I personally install the ROM w/ kernel then reboot. After it reboots I then go back and install the alternate kernel. Might not be necessary but has always worked for me. Hope this helps.
I also just flash the rom then flash the kernel. No rebooting. I've never had a problem.
You will be fine to do rom then kernel no need for reboot
Sent from my Incredible 2 using Tapatalk
Thanks guys.
Hello,
I was wondering about flashing kernels and Roms separately. I want to flash the SGS2 Streamline kernel and the |ROM|Paradox II|L.O.V.E|. I know that the Rom already has the Darkside kernel in it, which is why I am wondering how this process would work and if I flash the kernel before the Rom or vice versa?
Thank you.
izayani said:
Hello,
I was wondering about flashing kernels and Roms separately. I want to flash the SGS2 Streamline kernel and the |ROM|Paradox II|L.O.V.E|. I know that the Rom already has the Darkside kernel in it, which is why I am wondering how this process would work and if I flash the kernel before the Rom or vice versa?
Thank you.
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Flash the rom first. Let it settle for a while. Then go back into recovery and wipe cache, dalvik then flash kernel. After it installs fix permissions in recovery, then reboot. make sure you give it about 10-15 minutes after first boot to settle in.
I came from a Droid X2 that had a locked bootloader. All the ROM's for it didn't change the kernel and the ROM had to be on a certain kernel to function properly.
My question is do the ROM's on Galaxy nexus come with kernel when you flash them or do you need to be on a certain kernel first or flash a kernel With the ROM while still in recovery.
The ROM I'm looking at doesn't say anything about what kernel to be on so I assume it comes with one.
Thanks,
Troy
Sent from my DROID X2 using xda app-developers app
No need to flash a custom kernel unless you want to, or unless the directions for that specific ROM instruct you to. Personally I found that my device performs better if I stay with the packaged kernel and not flash a different kernel after flashing a ROM. But others have had different results with different kernels. I would recommend sticking with the kernel packaged with your ROM to start with, that way you would know how it should perform. Then if you flash a new kernel in the future, if you start having an issue you would know it could be due to the custom kernel and not the ROM.
tshelby73 said:
I came from a Droid X2 that had a locked bootloader. All the ROM's for it didn't change the kernel and the ROM had to be on a certain kernel to function properly.
My question is do the ROM's on Galaxy nexus come with kernel when you flash them or do you need to be on a certain kernel first or flash a kernel With the ROM while still in recovery.
The ROM I'm looking at doesn't say anything about what kernel to be on so I assume it comes with one.
Thanks,
Troy
Sent from my DROID X2 using xda app-developers app
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Some come with a kernel some do not....and there's no need to wipe cache or dalvik when flashing a kernel (as per Mr imoyseon himself)....flashing a kernel could cause a boot loop when its not compatible so just take your battery out and reflash a different one....just try some out and make sure you read allllllll of the OP whenever you flash anything