I flash cf-root kernel in cm7 rc2.2 couldn't start. CF-root kernel is fast、and no lag to screen unlock and gallery3d,I think it's wonderful of using cm7 rom with cf-root kernel.
the failed to boot is obvious, as cfroot isnt meant for cm. also cfroot and current cm7 kernel that most people use is compiled by the same man, ketut. and i'm pretty sure what he did with cfroot also already incorporated in the cm kernel which he also compiled himself.
an0nym0us_ said:
the failed to boot is obvious, as cfroot isnt meant for cm. also cfroot and current cm7 kernel that most people use is compiled by the same man, ketut. and i'm pretty sure what he did with cfroot also already incorporated in the cm kernel which he also compiled himself.
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Click to collapse
Well,I'm sure too.
CF-root => Cyanogen mod
Hello everybody,
There are a few threads that discuss this question, but they all draw a different conclusion.
This one for instance : http://forum.xda-developers.com/showthread.php?t=1256707 (or if the link is broken, search this: [Q] CF-root to ClockworkMod (for cyanogenmod), and non-responsive launcher).
In the thread above they claim that repeating the installation of the .zip file twice, will install CM7 on the device. However, in this very thread , CF-root and CM7 are said to be incompatible. As i want to install CM7 on my device (Samsung Galaxy S2, i know it's different from the ace but the rooting principles are the same), i'd like to know for sure:
Is there a way to install CM7 on a CF-rooted device?
Many thanks
EDIT: Question already answered in the linked thread. Thx anyway
Related
Hi All,
I bought my SGS 2 yesterday and flashed it today so I'm entirely new to this phone but not entirely new to Android because I had a Nexus S before.
My questions are:
1. At the moment what is the best kernel for performance, stability and good battery life while being secure (I don't want the triangle during boot) and supporting CWM?
2. Will my root remain with any kernel that I flash?
Thanks,
1) respect forum rules (cluttering forum)
2) read sticky posts (you don't have coded/modded anything)
3) wrong forum (this goes in Q&A forum)
4) read the relevant thread and learn from them
Other solutions here:
http://m.youtube.com/#/watch?desktop_uri=http%3A%2F%2Fwww.youtube.com%2Fwatch%3Fv%3DJmvCpR45LKA&v=JmvCpR45LKA&gl=IT
You've been on the forums since 2007 and you still don't know where you should post a question? This is Android Development not Question. Theres different sub-forum for a reason.
1) At the moment Tegrak would be the best performance since your able to control your GPU clock speed as well as overclocking the CPU. The best battery life would (personal preference) be Cognition own kernal built for his own ROM.
To get rid of the triangle flash it using CWMManager (APK), you just get the zImage out of the kernal file put it on your sd card go to CWMManager app and select flash kernal then select zImage. Although you first would have to Flash a custom-kernal with CWM to flash a rom, use odin to flash stock kernal and then use CWMManager to flash the kernal, this will get rid of the annoying triangle.
2) Yes.
Press thanks if I helped
I would recommend that you use the cf-root kernels they are quit good.
As far as I know are there at the moment no special kernels with uv or other cool features. Most of them are quite similar.
I try at the moment the Jame Bond kernel because I know this one from the Nexus S but just flashed 5 min ago so can't give any informations.
Because of the triangle when you flashed the cf-root kernel then boot once with it
go back to download mode and flash the stock kernel of your choice.
I don't know if it works with other kernels but fore sure with cf.
The best thing would be if you don't care about the triangle is too much work if you always try to remove it after you flashed something.
Nebucatnetzer said:
As far as I know are there at the moment no special kernels with uv or other cool features. Most of them are quite similar.
Click to expand...
Click to collapse
wrong. Lulz Kernels (Tegrak) for example.
Thanks to everyone for the answers!
I've been doing this whole "reading" thing about flashing and all that, but some confusion is still there.
I have rooted my newly got SGS2 (i9100, UK).
Now what ? I'm looking at Darky's rom, but there are two files to flash separately: kernel (darkcore1.7) and ROM itself.
1. I was just wondering what is kernel in this situation ? Can i keep my current kernel, which was flashed by superoneclick(2.1.1) or do i absolutely need to flash darkcore ?
2. Same question applies to any other rom out there - can i use different kernel to the rom i may want to flash ? A lot of them come in sets (rom+kernel)
3. Another question - if i mess up kernel flash somehow, does that kill "download mode" of the phone (voldn+pwr)?
I have SGS1 flashed just another day, due to it being "expendable" now that i have SGS2, so jumped in and flashed it following instructions, but without solid understanding. Either stuff gets too complicated or i'm getting too old for this **** (I do have a background of messing with PCs, videogame consoles (ps1 era to ps3/360), winmo6 phones, gadgetry in general...engineer at heart )
You can use any kernel with any ROM. And no I don't think your Download Mode will be gone if you mess up a Kernel.
Kernel don't come in sets. You can choose your favorite there. See Dev section for more details.
Regards.
Correction: SuperCore, not darkcore...
Can i use cwm app (v2.0)to flash any kernels ? Or does it have to be odin ?
sliex said:
Correction: SuperCore, not darkcore...
Can i use cwm app (v2.0)to flash any kernels ? Or does it have to be odin ?
Click to expand...
Click to collapse
Rom>>That depends upon the instructions as always in the rom you choose for a custom rom .
Kernel is flashed via Odin Via CWM app or via CWM recovery .
Kernel is the core of the system between hardware and operating .
jje
Ok, so saying that, What stock Kernel can I use for Cyanogenmod7 ROM?
I was using "XWKE7" previously.
The ZIP file that i downloaded actually replaced my kernel with its own.
I'm asking this as I wanna use Tegrak overclock which is only compatible with stock kernels.
Rjmcgauley said:
Ok, so saying that, What stock Kernel can I use for Cyanogenmod7 ROM?
I was using "XWKE7" previously.
The ZIP file that i downloaded actually replaced my kernel with its own.
I'm asking this as I wanna use Tegrak overclock which is only compatible with stock kernels.
Click to expand...
Click to collapse
Stock kernels will not work with cyanogenmod. There are no overclockable kernels available for it yet.
Sent from my GT-I9100M
Hi all,
I have a few questions now I am running cm7. And I can't find the answers propably because (you're a NOOOB!!!) I lack some basic understanding of the relation between kernels, mods, modems etc.
First the situation: SGS2 (duh) rooted using CF-Root OXA KG3. Flashed CM7 nightly (88 or 89 don't know from the top of my head).
My understanding of the parts is limited to the rom (cm7) is running on top of the kernel. Where the modem fits in I don't know.
Now the questions:
1. Does cm7 have (and am I running) it's own kernel or am I still on CF-Root?
2. If I want to switch to another kernel how would I do it and where can I find kernels working well with cm7? (I know about Swi7chblades thread)
3. Where is the modem for and can I change and improve it? (sorry couldn't find it in the guides nor the glossary on the wiki)
And I thought I had more but will say what pops up when I read your answers.
I think CM7 has a own kernel but i'm not sure
SiyahKernel v2.0 will work for you if you are still running CM7
Cangir said:
I think CM7 has a own kernel but i'm not sure
SiyahKernel v2.0 will work for you if you are still running CM7
Click to expand...
Click to collapse
Yeah I am still running CM7 and plan to stay there until their is either an ICS version or another ICS rom. Thanks for the kernel suggestion will check it out.
edit: SiyahKernel v2.0 looks promising, I'll put it on the list of things to try.
I tried siyah 2.0 stable but it wasn't a success. I ended up going back to stock and flashing cm7 again. On the modem front I flashed to KI4 and things seem a little better. But I still don't really know what to look for. Anyone?
CM7 has the kernel from cyanogen dev codeworkz. I'm using siyah ATM though which is decently stable.
Sent from my GT-I9100 using XDA App
Hi,
I recently bought Samsung Galaxy S II I9100 on ebay. After receiving it I realized that it has a custom ROM installed on it. Now I cannot update my Galaxy SII using Kies. So, I decided why not flash it to stock ICS firmware.
as fas as I understand I need to flash my phone using ODIN with a stock ICS firmware (I choose the first one from Nordic countries from http://forum.xda-developers.com/showthread.php?t=1544487 ).
Now what if I think of rooting it ? I mean I want to unlock super user privileges. As far as I understand I choose SiyahKernel v3.2.7.2 (from http://www.gokhanmoral.com/gm/). Just like the way I flashed using ODIN. I repeat it with this .tar file from SiyahKernel v3.2.7.2. Is that it ?
Can anyone verify it ?
Yes, but you should flash CF-Root kernel first (after flashing stock ROM).
If not satisfied with this, then you can try Siyah...
thanks for your reply. What is the difference between Chain Fire and Siyah ? I tried to look for differences ... couldn't find any .. CyanogenMod has a lot of documentation... in fact it is kinda scary (with some of its security problems)..
satish1986 said:
thanks for your reply. What is the difference between Chain Fire and Siyah ? I tried to look for differences ... couldn't find any .. CyanogenMod has a lot of documentation... in fact it is kinda scary (with some of its security problems)..
Click to expand...
Click to collapse
hey ma8 first try to understand everything about root and recovery then try to implement the same
ps- also for rooting ur phone after flashing stock ics rom please check the link below
http://forum.xda-developers.com/showthread.php?p=20075898#post20075898
There is almost no visible diffrences between kernels. at least in normal mode.(siyah has its own CWM, way better than other CWM versions).
Siyah Kernel eliminates some of logging processes and unusefull procedures of android, so it gives you better battery life. specially in idle mode.(about 1 percent for 7-8 hour) and I feel CF-kernels are more battery consuming than stock kernels.
Also Siyah gives you advanced control over hardware, and has a dual boot option.(two different ROM of same version. both ICS or both GB). for best results you should download EX Tweaks from market.
satish1986 said:
thanks for your reply. What is the difference between Chain Fire and Siyah ? I tried to look for differences ... couldn't find any .. CyanogenMod has a lot of documentation... in fact it is kinda scary (with some of its security problems)..
Click to expand...
Click to collapse
CF-Root kernel from Chainfire is only a rooted stock kernel with a few extras (such as SuperSU, BusyBox, CWM recovery, CWM Manager app, etc.).
Have a look at CF-Root thread for detailed information => http://forum.xda-developers.com/showthread.php?t=1103399&highlight=CF+Root
SiyahKernel from gokhanmoral is completely different, as it is a custom kernel with a lot of patched, parts from other kernels/linux sources/other phones/individually developed code/etc.
See corresponding thread for further information => http://forum.xda-developers.com/showthread.php?t=1555259
If you want to stay "stock" but rooted, then flash the corresponding CF-Root kernel for your stock ROM.
Happy flashing !
P.S.: Use TriangleAway app from Chainfire to remove the yellow triangle and reset the counter after flashing an insecure kernel, such as CF-Root or Siyah.
And as soon as your phone is rooted, you can use Mobile Odin app from Chainfire to flash stock ROMs, kernels and other part of the firmware with an on-device app - without the yellow triangle and without increasing the counter.
CF kernels are STOCK kernels, only with root access.
Syiah, Speedmod and others are developed as new kernels with special properties - adjustable voltage and over- under- clocking... also there is a greater risk of them being unstable
all of this makes me scared .. but, I want to take that leap ... sounds geeky to me..
As long as you understand the process of whatever you're going to do to your phone & follow instructions to the letter you should be fine.
If you don't understand exactly what it is you're going to do to your phone, don't do anything until you do.
hi everyone.
well, i've searched a lot about kernels in different threads, but didn't find any detailed and comprehensive information about kernels.
i rooted my SGSII with Odin through a guide which installed Siyah-s2-v6.0b4.tar kernel and CWM based recovery on my phone.
i flashed RootBox-JB-i9100-V4.2 ROM and now have 3.0.64-CM-g32f12dd kernel.
Before i flashed a custom ROM i got stweaks working, and after i flashed rootbox i recieve a message:"no kernel support" on stweaks.
This is leading to my first question- does my kernel change when i use different ROMs?
now i want to try and change my kernel to one who is supported by stweaks and has touch CWM and works with RootBox, but i'm not sure how to flash kernels.
This is leading to my second question- can anyone describe the whole procedure of how to change kernels on SGSII?
thanks for your attention.
There's nothing to describe. Custom kernels are flashed in CWRecovery mostly (some have Odin flashable versions as well). Always follow the exact flashing instructions for the kernel in question which are always on the first page of the thread devoted to the kernel in whichever development section, and are always very clear/simple to follow.
Only some kernels like Siyah or DorimanX support STweaks.Look up here on S2 forums in the Android Development section for kernelsThere are some others that have STweaks support.Also,.don't flash kernels made for Sammy ROMs.If you wanna flash DorimanX, then flash 9.39, not 8.39.
ido.n said:
This is leading to my first question- does my kernel change when i use different ROMs?
Click to expand...
Click to collapse
Yes, if the ROM comes bundled with its own kernel(s). :good:
ido.n said:
hi everyone.
.....
This is leading to my first question- does my kernel change when i use different ROMs?
...
thanks for your attention.
Click to expand...
Click to collapse
Yes.. The ROM ZIP usually contains Rom+kernel+modem combination
ido.n said:
hi everyone.
.....
This is leading to my second question- can anyone describe the whole procedure of how to change kernels on SGSII?
thanks for your attention.
Click to expand...
Click to collapse
1.Just go the kernel thread you want to use.(Mind that you cant use siyah with Rootbox). Search for a kernel which supports 4.2.2 (eg. Dorimanx 9.x) and download the CWM Flashable zip in the thread.
2.Download Hawker Paul`s Kernel Cleaning Script
3.Flash Hawker Paul`s Kernel Cleaning Script first trhu CWM
4.Then Flash the Kernel ZIP
Hit Thanks if I`ve helped you
thanks everyone! you're great!
absolutely clear now.