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Hello,
Sorry for this very basic question, I am just wondering what is the difference between a Kernel and a ROM? I see in the development forum there are lots of new Kernels, what are these actually optimizing except underclocking or undervolting (understand that terminology). I am also wondering if the Kernels are specific for the original Nexus One 2.1 Android or can you install for example Modaco or Cyan ROM and then a different random Kernel?
Thanks!
To my understanding, a kernel is what directly interacts with the hardware. Every OS has this, but it's more customizable on our phones since it's based on Linux. The Rom contains the OS itself, and the software and file structure therein. The kernel even can tell the OS how fast the processor goes and how much juice to use from the battery.
Hope that makes sense, as I'm no expert. You can mix and match the two as far as I know. I've mixed them, anyway.
Halorin,
Based on what you said, with my stock vibrant ROM 2.1 JI6 update, it is possible to change the kernel or install another kernel (like the CM kernel)?
tomasitoc said:
Halorin,
Based on what you said, with my stock vibrant ROM 2.1 JI6 update, it is possible to change the kernel or install another kernel (like the CM kernel)?
Click to expand...
Click to collapse
That is really a question better suited to the rom 's development thread, but in general yes you can flash a different kernel. Some kernel/rom combinations work better than others, but you really wont know until you try. Get comfortable with nandroid backups and start trying out different kernel combinations until you find one you like.
Usually most custom roms will include a kernel but they usually have tweaks like coding for 720p, oc, and audio tweaks and what not. Alsways do a nandroid back up and start exploring. When flashing kernels always wipe, I think their are exceptions but its best to wipe just in case. Browse XDA, download a kernel from your phone browser, rom manager install from SD, should be in your downloads folder, backup and wipe, repeat until your phone does what you want.
Sent from my Nexus One using XDA App
which is the better to install???
Thank you your post..
but i can't understand clearly.
so.,
which one is better to install NewRom / Kernal. for android phones.
Neither one is better it just depends on what you want to do.
If you want to totally change over your phone to look and function differently then you need to flash a ROM if you just want to keep the same look but want to enable lets say overclocking then flash an overclocked kernel. If it has to do with the hardware mostly then it's probably something that the kernel can change. Although like mentioned above if you flash a ROM most of the time it will come with a custom kernel.
Dude Random21 said:
Neither one is better it just depends on what you want to do.
If you want to totally change over your phone to look and function differently then you need to flash a ROM if you just want to keep the same look but want to enable lets say overclocking then flash an overclocked kernel. If it has to do with the hardware mostly then it's probably something that the kernel can change. Although like mentioned above if you flash a ROM most of the time it will come with a custom kernel.
Click to expand...
Click to collapse
What he said.
ROMs and kernels are two separate things that have two separate functions. Neither is better than the other, but they do complement each other.
Seshu9899 said:
Thank you your post..
but i can't understand clearly.
so.,
which one is better to install NewRom / Kernal. for android phones.
Click to expand...
Click to collapse
I know both Dude Random21 and codesplice have gone into this, but to try and give a bit more info...
The kernel is kinda like the nervous system of the body. It directly interacts with the hardware (which is how it is able to adjust CPU speed) and it is what allows the ROM to function.
The ROM is the rest of the body. Every other aspect of the phone. In fact, most ROMs include custom kernels. Various ROMs give you various features/enhancements/bugfixes. You will probably notice the biggest change in your phone if you load a custom ROM. Most people load the custom kernels to help with battery life as a lot of them allow you to lower the phones minimum processing speed from 245Mhz to 128MHz.
The ROM can change so many different aspects of how the phone works. There is CyanogenMod which is based off of stock Android with a lot of tweaks, bugfixes, and new features added. There is also MIUI, which is similar to the iOS style (not the same, but much closer than stock Android), and then there are a ton others out there.
Then which Rom is best for my samsung galaxy s???
so i am using froyo.jpjpg on my galaxys.
i want to flash new Rom with upgaraded to gingerbread.
can i flash only rom../ kernal also.
which is best Rom for samsung galaxys.
cynogenmod, miui, .?????
battery drain is very fast now ian running rom/kernal.
Start by going to the forum for your phone.
Sent from my Nexus One using XDA App
thank you...
i Start the post from samsung galaxy s..
Seshu9899 said:
thank you...
i Start the post from samsung galaxy s..
Click to expand...
Click to collapse
your welcomed
Nandbackup + Rom & Kernel
One question: when I do a backup with CWM, it is the Nandroid backup you talk about, correct...? Same thing? So, if I do a backup with CWM, it's a backup only of the ROM, or also the stock Kernel...? Imagine that I do a Rom (GingerDX for example), and flash with a custom Kernel.... If things go bad and I do a restore from my backup (stock) CWM, what do I restore? Rom, or Rom + (stock) Kernel...?
Yes, a backup that is done in ClockworkMod (or Amon_RA) is considered a nandroid backup. And this takes a complete snapshot of your system. Your ROM, your kernel, your apps and your data are all inlcuded. The only thing that isn't included is the fat partition on your sdcard. So if things go bad and you restore your nandroid backup, it will go back to however it was when you made the backup.
thanks a lot. reading this thread clear up a lot of things
Hi!
I am currently running Lite'ning ROM 6.1. XXKH3 Kernel version 2.6.35.11-ninphetamine-2.0.5+ [email protected] #20 on SGSII. Phew.
I've tried a lot of ROMS including MIUI, villain, galmetMIUI ICS version . I like Lite'ning ROM because it gave me the least (virtually Nil) problems (FCs/ reboots) and has almost all the features I need (TV-out that's missing from MIUI, good camera with panorama mode, Recording mode in phone). However I miss the CIFS feature. Is it because the kernel does not support it? Can I get CIFS support if I flash another kernel? Any suggesstions on which Kernel should I flash? I realise that this ROM is pretty old now so Can I get additional features with a newer Kernel.
codesplice said:
What he said.
ROMs and kernels are two separate things that have two separate functions. Neither is better than the other, but they do complement each other.
Click to expand...
Click to collapse
That made everything clear. Thanks man. I'm new to the xda but already flashed a new rom that overclocked my CPU to 1.5 and my HTC Sensation 4G Is running so much better right now. However I wish i knew how to thank people... because i see the thanks meter but cannot find where to thank from.
radoslav.trahanov said:
That made everything clear. Thanks man. I'm new to the xda but already flashed a new rom that overclocked my CPU to 1.5 and my HTC Sensation 4G Is running so much better right now. However I wish i knew how to thank people... because i see the thanks meter but cannot find where to thank from.
Click to expand...
Click to collapse
The rom didn't overclock your phone. The kernel did. READ. You came to the MT4GS forum starting up a storm for people not giving you a direct link to the regular MT4G. How is it you cant find the freakin' "thanks" button? THERE'S A FREAKIN' THANKS BUTTON IN EVERY FREAKIN' POST. OPEN YOUR FREAKIN' EYES.
Sori m jst new here..jst b0ught my f0ne 2 m0nths ago. Flashed r0m: gingercrime ITA, flashed kernel: ver 2.6.35.14 v6. And iv overclock my fone 245-710Mhz, smartass. fone: lg optimus one, running on gingerbread 2.3.3
Many thanx xda developers..!!
Hi everybody!
so can anyone explain me how to deodex my entire rom? and it's VERY IMPORTANT.
i need a good and serious guide.
my firmware version is xwjvb, csc: neejv3 AND i have cf root
i have no idea how it's done and ive clearly never done it but it dont mean i cant,
Also, ive found this post "http://forum.xda-developers.com/showthread.php?t=765270" but it's a lil bit confusing, i have xultimate 2.2.3, and for example after step 4 on that guide, i dont find any guava.odex to remove, and it doesnt even work when i start the 4th choice.....
im also not sure if it will work on my phone/os versions.
so will anybody help me please, i really need to deodex to especially try the touchwiz 4 port!
"http://forum.xda-developers.com/showthread.php?t=1050666"
DOn't waste your time in trying to do it yourself; it's already available on this forum. Check this one out!
http://forum.xda-developers.com/showthread.php?t=948790
wow, this is GREAT!!! exactly what i was looking for, thanks ALOT
***eventhough i no longer really need to manually deodex thanks to ramad, and to widget21 for letting me know about it, i'd still like to learn how to manually do it...... so can anybody please help?
once you are rooted the easiest and quickest way to get deodexed is installing a custom ROM -- there are several now that are fairly minimalist and you can cook a bare bones custom rom over at Doc's kitchen. Custom ROMs have the advantage of not only being deodexed but zipaligned and consistent with the file system. Why re-invent the wheel?
lgsshedden said:
once you are rooted the easiest and quickest way to get deodexed is installing a custom ROM -- there are several now that are fairly minimalist and you can cook a bare bones custom rom over at Doc's kitchen. Custom ROMs have the advantage of not only being deodexed but zipaligned and consistent with the file system. Why re-invent the wheel?
Click to expand...
Click to collapse
im so NOT going to reinvent anything, im not even sure if i can anyways LOL, i was just curious cuz when they talk about it it's like something than can simply be done after flashing a stock rom like rooting..... i already goofed up and lost everything i had on the phone so flashing a new rom is not that big of deal anymore lol
know how you feel: my understanding comes from doing it the hard way and having to rescue the phone several times, so now I know better I try to help people not make the same mistakes I did while I was trying to sort it out myself.
Hope you flashed the kernel and rom you like that gets the most out of your phone and all is excellent today!
Hi, i have DHD and this is my first request!....after a OTA's upgrade on gingerbread, i downgrade my device with this guide http://forum.xda-developers.com/showthread.php?t=905003 and i've 2.2.
Now what i've to do? i need a rom stable and fast, simple and without many effects, but essential, that allows me to have a long battery usage. I would also increase the wifi reception of the DHD...
What do you recommend me to install and wich guides to follow?
Thanks but I'm really inexperienced!
The most common answer: Read the different ROM threads and try some.
But my advice to your requirements is to try mike1986's Gingerbread release.
Stable, Up2date, ready for daily use..
You will find the thread on your own ;-)
ok very thanks, but i'm a new by....and this world is too big and new for me!...i don't know what to looking for, and where....
did you suggest to me mike1986's Gingerbread release....there are other ones?
and radio? s-off?....what are?
Well bro let me tell.few things...as u r new
1. The most stable rom u can hv isby coredroid v 6.3 and its preety sleek andwith htc sense.
2. No matter what dt play with anythng flashing radio etc...
3. Pref use stock kernel...and the rom I suggested is pure on stock resources so...easy ...quick and easy...
Let me know ifi can b of any more help
Sent from my Desire HD using XDA Premium App
Gimme smtime its preety late nite I will gv u sm imp links and then u'll b blazing gun..... By the way welcome to this new horizon of play.....
READY 4 HUNT
OK very thk!!!
this we i couldn't do anything, but next week i'll do all for my DHD!!!
Giovilomby said:
OK very thk!!!
this we i couldn't do anything, but next week i'll do all for my DHD!!!
Click to expand...
Click to collapse
http://www.dkszone.net/downgrade-htc-desire-hd-from-1.72-1.75-firmware-to-1.32.405.6
i followed this many times..... and it works like charm....after achieveing rooting... then install rom manager clockworkmod and backup the device in this stock stage...then copy the coredroid 6.3 rom and rock the show.....
hi guys,
ive recently bought a samsung galaxy s gt i9000 off ebay. im chuffed to bits with it, i had upgraded from my first android ( tmobile pulse) which was abysmally slow
Since having my sgs ive installed kies and updated the firmware twice, i am now on 2.3.5.
The phone seems much much faster than my pulse so i am very happy, and for this reason im wondering what are the benefits to me of rooting it and installing a custom rom? ive looked through some threads and theres alot of roms to choose from, and they confuse me with talks of pits etc.
i had rooted my pulse with custom roms flashed using clockwork mod, but this seems far more complicated. The phone seems fast enough for what i need it for, is there any point in rooting+flashing a custom rom?
edit: also as far as i can tell most of the custom roms use android 2.3.3/2.3.4? so wouldnt that be a step backwards?
thanks in advance!
Most roms uses JVT the newest gb. If you are satisfied with no root there's no need to root but if you want to do more with your phone go with root.
Sent from my GT-I9000 using XDA App
Rooting is essentially the equivalent of getting admin rights on your phone. Some apps may need root access (such as titanium backup), as they modify system files and so on.
Custom roms vary, they might simply be a package of tweaks/optimizations and themes, or a complete rework of the firmware (like CM).
If you're happy with everything there's no real need to do either
Hi, I use the half way method, I stick with stock odexed jvt as stock is the most reliable. I then use a custom kernel for speed. I use semaphore 1.8.2bm. i use themes to make it look better, and tweaks to make it run faster. I find this to be the best compromise. You need root to create a full backup, and apply many tweaks. You get root from custom kernels
Sent using TCP/IP
Thanks for all the replies. Could you link me to a guide for this please? much appreciated
Sent from my GT-I9000 using XDA App
I Have Rooted my Note with Odin and are on kernel KK5.. Im thinking of install a new kernel and getting a custom rom for improve the speed, battery and hopefully no lag after reading different topics here, its pretty hard too choose? anyone know for sure whats the best out?
Look at them all, read the responses, then pick one. There is no such thing as "best".
Agreed!
Its what best suits your needs. CF-Root may be considered as the most stable and close to stock as possible with just Root.
That may be what you want to start with.
The best ones are: of your considering and best choice to fit your device
yes there is not a best rom (never ask about which is the best rom)
there are different roms
some uses some devices/cpu drivers/controllers/governors some not, some are lighter some are more heavy
some looks quite similar to stock and some others are completely different
some boost speed others boost battery usage
i think that for make a good choice 1st element is to see who made the rom: there are some devs who have been tweacking/writing roms for years on older devices and have a strong strong reputation
2nd element very important is to check the comments of the people who tried it on the threads: read 1st page of the post and then go to last page and read the 10/20 last replies
usually for noobs like you and me the best is to go for a well tested rom without 2 many problems
i wouldnt dare to install cyanogenmod 9 so far....
anyway if i were you i would try the rocket rom vers 20 and then upgrade to rocket rom 21
this rom has a long development and its quite reliable
being .21 version many bugs have been amended and the dev is very active and nice.
2 go for reliable rom as beginner is the most intelligent choice!
hope to have been helpful
lorekarf said:
yes there is not a best rom (never ask about which is the best rom)
there are different roms
some uses some devices/cpu drivers/controllers/governors some not, some are lighter some are more heavy
some looks quite similar to stock and some others are completely different
some boost speed others boost battery usage
i think that for make a good choice 1st element is to see who made the rom: there are some devs who have been tweacking/writing roms for years on older devices and have a strong strong reputation
2nd element very important is to check the comments of the people who tried it on the threads: read 1st page of the post and then go to last page and read the 10/20 last replies
usually for noobs like you and me the best is to go for a well tested rom without 2 many problems
i wouldnt dare to install cyanogenmod 9 so far....
anyway if i were you i would try the rocket rom vers 20 and then upgrade to rocket rom 21
this rom has a long development and its quite reliable
being .21 version many bugs have been amended and the dev is very active and nice.
2 go for reliable rom as beginner is the most intelligent choice!
hope to have been helpful
Click to expand...
Click to collapse
I recommend him to install cyanogenmod 9 for an adventurous/risky feeling !!! lol
Hi, my name is g4ndr1k and I'm a flash addict.
I've tried almost every ROM and now I am on DarkyROM. Hopefully it would be my last before ICS.
My other favorites are Cassie's, CheckROM, KingDroid and Romow.
For giving a precise answer (of course, only IMHO):
CheckRom v5 with either CF Root oder SpeedMod Kernel.
But, in general: use what suits your needs best. How? take a look at every ROM.
Honestly as of now the custom ROM's dont really stand out that much compared to the stock ones, on a day to day basis with a blind test no one can tell the difference.
I was looking for smoothness, stability and the minimum lag without changing a lot in UI, stock LA4 deodexed with fm 2.0 kernel was my best choice after trying several roms, I'm satisfied with what i have before the ICS comes out.
Sent from my GT-N7000 using Tapatalk
Thanks for all the reply's
I been watching some youtube clips and i think im going with the: "CheckROM Revo NoteHD ROM" if not anyone has something bad too say about it it looks really nice!
Edit:// Rocket ROM FTW!!!
re:
lorekarf said:
anyway if i were you i would try the rocket rom vers 20 and then upgrade to rocket rom 21
this rom has a long development and its quite reliable
being .21 version many bugs have been amended and the dev is very active and nice.
2 go for reliable rom as beginner is the most intelligent choice!
hope to have been helpful
Click to expand...
Click to collapse
Why should try v20 first, cant I just flash to v21 right away?
Rocket Rom and abyssplug still you know stock is also good if you can wait till ICS
abhi98228 said:
Rocket Rom and abyssplug still you know stock is also good if you can wait till ICS
Click to expand...
Click to collapse
But after what i've seen in videos and reading on net. Its BETTER! I mean no lag, faster speed, improved battery +++
Another question: ive seen posts about not flashing custom roms with Odin, what should i do then, unroot and root again?
AleksLenin said:
But after what i've seen in videos and reading on net. Its BETTER! I mean no lag, faster speed, improved battery +++
Another question: ive seen posts about not flashing custom roms with Odin, what should i do then, unroot and root again?
Click to expand...
Click to collapse
if you already rooted and installed CWM recovery, then no need to flash using Odin.
just copy Zip (ROM) to SD card and reboot in CWM recovery then flash.
(Flashing Custom ROM using Odin(PC) adds binary counter)
ranjan.alva said:
if you already rooted and installed CWM recovery, then no need to flash using Odin.
just copy Zip (ROM) to SD card and reboot in CWM recovery then flash.
(Flashing Custom ROM using Odin(PC) adds binary counter)
Click to expand...
Click to collapse
Im actually starting too wonder if id used Odin.. This is the package i used: DooMLoRD_v3_ROOT-zergRush-busybox-su
but anyway, i dont think i have CWM recovery installed, i have downloaded Rom Manager, but when i push the Flash ClockworkMod Recovery. I can only choose between a few samsung choices like SII but no Galaxy Note?
Currently on rocket 21 but id highly recommend checkROM v5. Seems the most stable with superb performance and battery. Flash abyss kernel 3.5 and overclock and undervolt to 1600. Guarantee you'll love it. With checkrom you can install missing Samsung apps from kitchen and a variety of mods to suit your needs. Would recommend ics keyboard if you use fingers to type or swype if you use the pen a lot.
Sent from my GT-N7000 using XDA App
AleksLenin said:
Im actually starting too wonder if id used Odin.. This is the package i used: DooMLoRD_v3_ROOT-zergRush-busybox-su
but anyway, i dont think i have CWM recovery installed, i have downloaded Rom Manager, but when i push the Flash ClockworkMod Recovery. I can only choose between a few samsung choices like SII but no Galaxy Note?
Click to expand...
Click to collapse
dont use rom manager check the development section there is first thread how to root NOTE simple steps just run a batch file and they you have Root+CWM installed then installed latest ROM (Stock or Custom) if you ask me i would prefer stock LA6 there is a thread and CF Root Kernel LA6 flash it from CWM or Mobile Odin
Dont use Odin From PC
abhi98228 said:
dont use rom manager check the development section there is first thread how to root NOTE simple steps just run a batch file and they you have Root+CWM installed then installed latest ROM (Stock or Custom) if you ask me i would prefer stock LA6 there is a thread and CF Root Kernel LA6 flash it from CWM or Mobile Odin
Dont use Odin From PC
Click to expand...
Click to collapse
Sorry for a dumb question!...But if I use Mobile Odin,I dont need to get CWM?
Sent from my GT-N7000 using xda premium