CyanogenMod kernels

[Greyjawripper]

Just curious if i can use the same kernel from CyanogenMod 7.2.0 in CyanogenMod 9.1


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[Greyjawripper]

Anyone der to help me... I wanna flash my rom but am away from a pc... So cant flash kernel
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[cybroid]

I think it's better if you find a pc to use to flash it, 'cause you can't do it from it from the device itself if you don't know or don't have the recovery installed...

 

[speed_bot]

you can use but with minor edits to source

 

[Greyjawripper]

I have the recovero.... It seems información will need to flash the kernel from pc..... Cause when i flashed Cm 9 without the kernel that came in it my phone got stuck in boot Screen....... Luckily i had a nandroid backup

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[speed_bot]

I have the recovero.... It seems información will need to flash the kernel from pc..... Cause when i flashed Cm 9 without the kernel that came in it my phone got stuck in boot Screen....... Luckily i had a nandroid backup

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i cant excatly guarantee for it to work because we need minor changes in source to fit in the different api so ... this just might be your case why not ask someone to upload the kernel for you

 

[Greyjawripper]

I guess the only way to flash it by using the kernel i got in the rom..... Btw thanx for the reply apprentiate it

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[sashank]

You definitely can't use the CM7.2 kernel for CM9.1. There are a lot of differences between the two since one is GB based and the other is ICS based.

 

[moddlerlotes]

boot.img

please can anyone tell me in detail , what is boot.img for??????

 

[sashank]

Boot.img contains all the files required for the device to boot such as kernel and ramdisk. Without it, the device can't start. Boot.img when flashed, will copy all files to the /boot partition.

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[Greyjawripper]

Boot.img is the kernel file

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[speed_bot]

You definitely can't use the CM7.2 kernel for CM9.1. There are a lot of differences between the two since one is GB based and the other is ICS based.

but many phones use 2.6 kernel for both ics and gb so just the defconfig differs ...

 

[sashank]

but many phones use 2.6 kernel for both ics and gb so just the defconfig differs ...

That's partially true. For example, ICS ROMs for my HTC Desire HD used the 2.6 GB kernel as there was no official ICS kernel update from HTC. But the 2.6 ICS kernels required a lot of hacks, forward ports from various ICS kernel branches and backports from GB to work with ICS. For lack of a newer kernel version, the 2.6 kernel was used, but it was very different from the 2.6 GB kernel. It took months of hacks and hard work for devs to get everything working on the ICS ROMs with the 2.6 kernel. After Jelly Bean was released, it would have taken a ton of work to get the 2.6 kernel to work with it and not everything would have worked properly. Fortunately, Team Virtuous made a custom 3.0.xx kernel for the Desire HD all on their own, effectively making any kernel update from HTC's side useless, even if they did choose to release it. Another dev took this kernel and improved upon it like hell, and now we have perfectly working 4.2.1 Jelly Bean.

Of course, I might not be fully right about this because I'm no developer, but I've been following the ICS and JB threads for my phone for a long time and this is the way development was for it.