Database Develop

Swap question.

I've been reading up a bit about all the Hero, Blur, Donut releases and whatnot, and they keep mentioning the use of swap as if it's a casual everyday thing to have.
Call me conservative, call me paranoid, (hopefully, call me incorrect,) but what I've also read is that having swap kills your SD card faster than anything, as it's not built to be used that way.
I'd like to hear some information from people who have actually experienced problems from having swap kill their card. I have a 16gb SD card which I don't want to trash, so I hope that I've read the wrong thing and that it is indeed safe to have a swap partition on your card.
Also, from what I've picked up, class 6 cards are the best to use with swap. I have a class 2 card. Can anyone explain the difference between the two and why class 6 cards are better for that?
While I'm already posting a question thread, I'll go ahead and throw this one in... do bluetooth and LEDs work yet with the current Hero builds?
My reason for asking about all these is I've just gotten into the whole 'switchrom' scene, so I have really nothing to lose and can jump around firmwares quickly and without much hassle. I'd like to test a few other builds, Cyanogenmod is stable now so I have something to fall back on

Proxin said:
I've been reading up a bit about all the Hero, Blur, Donut releases and whatnot, and they keep mentioning the use of swap as if it's a casual everyday thing to have.
Call me conservative, call me paranoid, (hopefully, call me incorrect,) but what I've also read is that having swap kills your SD card faster than anything, as it's not built to be used that way.
I'd like to hear some information from people who have actually experienced problems from having swap kill their card. I have a 16gb SD card which I don't want to trash, so I hope that I've read the wrong thing and that it is indeed safe to have a swap partition on your card.
Also, from what I've picked up, class 6 cards are the best to use with swap. I have a class 2 card. Can anyone explain the difference between the two and why class 6 cards are better for that?
While I'm already posting a question thread, I'll go ahead and throw this one in... do bluetooth and LEDs work yet with the current Hero builds?
My reason for asking about all these is I've just gotten into the whole 'switchrom' scene, so I have really nothing to lose and can jump around firmwares quickly and without much hassle. I'd like to test a few other builds, Cyanogenmod is stable now so I have something to fall back on
Click to expand...
Click to collapse
using linux-swap (i recommend swapper from the market -- [AFTER YOU HAVE PARTITIONED YOUR CARD FOR LINUX-SWAP!]) yes, shortens the life of you sd card because its pushing it capabilities much further than normal. Personally, i use a regular 2gb (non-class 6 or class anything) for all my hero ROMs and they work fine with the ext4 and swap. As an analogy - if you drive you car everyday on the highway safely going 55mph, or if you drive you car everyday on the highway going 130 and slamming the gas out of red lights.. which one would ensure a longer life for your car?
Class 2/4/6 refers the the data transfer rate. Class 6 being 6MB/SEC. Your class 2 would work, however. Its a risk you'll have to take... I have had the same 2gb micro in my phone for almost a year, using swapper with hero and non hero roms and ext3/4. Still not dead. Im sure what brand card you have, also plays a role in the life of your card.
As for your ?s about the Hero ROMS both the Herver and Kingklick have the best hero roms out there, IMO. They are SPEEDY and VERY optimized. I am also pretty sure?? that BT is not working on these roms. The LEDs are working great though! The notification LED is an alternation of all the led colors and looks pretty cool.

A basic Question

First, many thanks to EVERYONE here. I have a Dash running Windows 6.1 thanks to this site.
Please, move this if it's in the wrong area...
I have ordered a Tmobile G1 and plan on putting on a new ROM. I am still very new to all of this and was wondering...
I like what I see so far the Cyanogen 5.08 and read that I should use a class 6 micro sd card. Is there a specific size that I can not exceed, such as 32 GB? I can not afford to screw this phone up so I want to make sure I get it right!
Any other suggestions or comments? I have been searching this site as well as Android Spin and the internet to find a good, user friendly ROM.
Thanks!

best thing u can do is take some time and read the "Rom Bible" in the stickies

I have been reading it, super informative!

i think 32 gb is the limit, and yeah class 6 or more (i think class 10 may be in microsd now (it is in regular sd for sure)) is highly recommended.
Also, cyanogen always has a nice mix of features and stability. Just wait for 5.0.8 to come out of test form (any day now)

There seems to be a lot of misunderstanding over class rating in SD cards, but the general consensus seems to be "16 GB Class 6 (or highest capacity/class available)." I'm using a 4 GB Class 2 card and CM5 runs smoothly with Apps2SD/Dalvik2SD, so I guess you don't need the best card unless using a Sense ROM as a daily driver. (Sense really does run badly on the Dream, no matter what you do about it.)
Size limits I'm very unsure of. You can definitely use 16 GB cards (everyone here seems to use one), you can most likely use 32 GB cards, and I don't know anything about 64 GB cards other than that's the max size the Nexus One can use.
Battery life is a huge issue on the G1, you should know. I can get two days' worth of battery (576/576MHz wake, 245/245MHz sleep, 0% brightness, sync+GPS, very few apps), but that's because I got that (very fattening) 2600mAh Seidio battery. With the original it wouldn't last an entire day.

For future reference "A basic Question" should be posted in Question and Answers post (Q&A). I'll request for it to be moved.

Thanks for the replies. I have read about the battery, that's on my list but the SD card and a case have to come first.
Binary, thanks. It looks like you have the exact setup that I was looking into.

6.1dash said:
Thanks for the replies. I have read about the battery, that's on my list but the SD card and a case have to come first.
Binary, thanks. It looks like you have the exact setup that I was looking into.
Click to expand...
Click to collapse
You're welcome. And they are all links so you can click on any of them and it'll take you to a page that will help you accomplish it.

[Q] Virtual Ram by using SD card memory

I am currently a XT720 user, and had rooted and Apps2carded my new great machine (used HD2 android before)... however, i found that my new supermachine is lack of ram (only 45Mb in average...) .Therefore, i am thinking is it possible to use the memory of SD card to build "virtual ram" just like what the guys doing in HD2...
Does any one agree this idea and can give a big hand for me....

If I understand correctly, you're looking for something like swap space? If so, there have been countless attempts at getting this to work. However, all have failed because we lack one simple feature...an unlocked bootloader.
Even if there are other ways to do it, it most likely requires access to the bootloader, and hence we are back to square one. For now, we can only rely on good task managers and overclocking to get some more juice out of our Milestones.
MrP.

Dear MrP.
Understood your answer and thank you very much for your information. The key is to get the right to get into the bootloader...... seems far away....-_-...but I still hope it can become true in the road of android development....
Add

With a 2048Bit RSA encryption? Unlikely...^^

RW-Speed on your SD-Card is to slow to be used as RAM anyway..

m0jo said:
RW-Speed on your SD-Card is to slow to be used as RAM anyway..
Click to expand...
Click to collapse
I had swap setup on my G1 and it made one massive difference anything with a class 6 is fast enough for it and on the milestone would make a massive difference with the Desire HD rom and sense loading.. It's a shame that we can't get it cause it'd make me happy until I get enough cash to get a milestone 2 and hopefully be able to break the bootloader...

avatar_43 said:
I had swap setup on my G1 and it made one massive difference anything with a class 6 is fast enough for it and on the milestone would make a massive difference with the Desire HD rom and sense loading.. It's a shame that we can't get it cause it'd make me happy until I get enough cash to get a milestone 2 and hopefully be able to break the bootloader...
Click to expand...
Click to collapse
i got a class6 and i tested the new DesireHD image on my SdCard, as its a huge 400MB+ image odex'd, and its actually slower although its odex'd for little loading improvements.. so putting everything on the sdcard makes it slow.
using menus and starting apps were unacceptable..
my conclusion is that using internal flash + deodex was much faster, so no good..
but! maybe its just a badly compiled ext2 module we have on milestone..

[Q] Can the Regular Nook be rooted with Android 3.0?

Hello fellow members/ xda developers. I was just wondering if the regular nook can be rooted with Android 3.0 honeycomb. I used the search feature and couldn't find any post to answer my question.
I even used Google with no luck. I would greatly appreciate an answer to my question. I have the regular nook wifi.
If so is it the same steps and process with the Nook color? If it is possible would someone please point me in the right direction to attempt it.
Once again your help would be appreciated. I love the site and plan on sticking around for a long time . Thanks for viewing my thread.

seriously? No.
ask yourself, its not a touchscreen device, is it?

kdeguy said:
seriously? No.
ask yourself, its not a touchscreen device, is it?
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Click to collapse
gezz I was just asking... Mr sarcastic.

You could but I won't say how. Why would you'd want to though? The current version of HC is an incomplete OS preview. I'd never even consider making this my primary OS until a non preview was available on the NC. Why? It's like taking an awesome device and subjecting it to reduced functionality mode. It'd be much better to just run it from a 16GB class 10 MicroSD card for $40 at newegg.com (optionally using the recently released HC OC v3 Kernel) if you're after more speed from the filesystem / CPU. That way you'd leave the all the existing functionality intact.
BOTTOMLINE: Leave the the internal eMMC alone, run Froyo and NC from their own cards. Don't use slow class cards and you should be fine.

epakrat75 said:
You could but I won't say how. Why would you'd want to though? The current version of HC is an incomplete OS preview. I'd never even consider making this my primary OS until a non preview was available on the NC. Why? It's like taking an awesome device and subjecting it to reduced functionality mode. It'd be much better to just run it from a 16GB class 10 MicroSD card for $40 at newegg.com (optionally using the recently released HC OC v3 Kernel) if you're after more speed from the filesystem / CPU. That way you'd leave the all the existing functionality intact.
BOTTOMLINE: Leave the the internal eMMC alone, run Froyo and NC from their own cards. Don't use slow class cards and you should be fine.
Click to expand...
Click to collapse
He was asking about the original nook if I am reading the post correctly, not the nook color.
Anyway, what good would having Android be on the original nook? Honestly, if you think about it, with a refresh rate of that of eInk, doing anything would be a headache. Just imagine to play Angry Birds. Which brings me to the next point. Android would be really hard to navigate with out the screen being a touch screen. Could the OS be ported? I'm sure it could. Why isn't it ported? What good would it do without being able to navigate?
What would be cool is a linux build that lets you do other things. Again, it still suffers from the refresh rate issues, however it would be cool to have extra functionality, maybe a few games, and support for some more formats. But now I'm just ranting. haha.

pts69666 said:
He was asking about the original nook if I am reading the post correctly, not the nook color.
Click to expand...
Click to collapse
That did cross my mind but then I thought who would want to use a non touchscreen device with HC. So, then I thought that the OP's use of "regular" might have meant "stock". That wasn't the case so please ignore my post then.

[Q] Need a detailed walkthrough for a beginner.

I'll be honest. The NC confuses me slightly when it comes to how to root, flash ROMs, etc. compared to my Incredible, it feels like day and night.
I made a thread about a month ago about wanting to learn the process but since then it has changed greatly with the 1.2 update.
I would really like if someone could detail out to me the steps I need to root and have CM7 on the NC.
I have questions that are probably answered right in front of me but they get lost in the vast amount of posts.
Since the eMMC is pretty much canceled out for the time being, I want to run CM7 off the SD card, I've already read a Sandisk Class 2 8 or 16GB is the right card for this, how the hell do I put CWM, CM7, etc on this one SD card or am I supposed to use 2-3 different cards for the process? Then what do I do from there?
What is the most stable, but feature packed release of CM7 at this point in time, like what build, which kernel, etc.? Market and GAPPS working?
Assuming the SD card is good, does running off the SD card impact performance or is it as slick as running off the internal?
Pretty much I'm starting from dead scratch when it comes to the NC and I feel the guide threads don't do enough justice to explain certain questions fully enough or at all?
If it helps at all, I just plan to download apps, internet browse, stream music from Mougg, little or no game playing, and overclock.
So someone please help me out? It's not like I know nothing, as I have a rooted and kept up to date phone but for some reason, the NC confuses me and I may be overthinking.
If I remember any more questions, I'll list them. Thanks.

Here you go...step by step.
http://forum.xda-developers.com/showthread.php?t=1030227

The link above is for emmc installs; if you want to install to the sd card, and it's your first time, I highly recommend Verygreen's install here:
http://forum.xda-developers.com/showthread.php?t=1000957
I was able to get my SD card up in running in under a half hour with Google apps market! Verygreen really does a great job explaining how to do this.
From my experience, a Sandisk Class 4 8 gig card works VERY well...very responsive, it will run as well or possibly better than stock 1.2. I know that CM7 is up to 7.0.3 stable, but I'm sticking with 7.0.2 until 7.1.0 comes out stable; everything is running fine, I have Netflix up and running with the boot.prop mod, and the only issue is battery life, which is a bit less than stock 1.2. Once 7.1.x is stable, I expect that to be fixed, and I'll be looking to flash to emmc, but for now this gives me all I need.

Plus one for the size agnostic method in Goferbroke's post. Simple and stable.
I'm running 7.0.3 stable without any major problems. For battery life, I installed Auto WiFi Toggle, free in the Android Market.
https://market.android.com/details?id=com.appspot.eikatou0.autowifionoff

Still looking for answers.
Sent from my Incredible with the XDA Premium App.

I agree with Goferbroke and brucemcl and recommend Verygreen's method: http://forum.xda-developers.com/showthread.php?t=1000957. I am fairly technical, but not at this level. I have never worked with a card reader, SD Card, Win32DiskImager, etc., and everything went fine.
A couple things I would recommend are: read through the entire thread - you will find some steps clarified and some issues others have run into, and; when rebooting to install the Market and Gapps, hold the 'n' button down, even after you release the power button.
The process just requires one SD card and a card reader. I personally chose the most recent Release Candidate for stability (update-cm-7.0.0-RC4-encore-signed.zip). However, I believe that I am in the minority - I have read where most people use a recent 'stable' release, which is newer than the latest RC.
The research I did does not indicate that running off the SD Card is any faster or slower than running off the eMMC. But, I have not run CM7 on the eMMC, so I have no performance benchmarks to share.
I have since installed a number of applications, a boot menu (u-boot_v0.4.bin) and am currently looking at ways to disable the 'Phone idle' and 'Cell standby' applications, which I don't think can be used on the NC, but are two of the highest battery consumers.

Briaom said:
I have since installed a number of applications, a boot menu (u-boot_v0.4.bin) and am currently looking at ways to disable the 'Phone idle' and 'Cell standby' applications, which I don't think can be used on the NC, but are two of the highest battery consumers.
Click to expand...
Click to collapse
To my understanding, the 'phone idle' & 'cell standby' are the equivalent of 'system idle' & 'system processes' on a PC. I don't think these can be disabled and still have a workable tablet.

I Am Marino said:
Still looking for answers.
Sent from my Incredible with the XDA Premium App.
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Click to collapse
Be patient. I spent three weeks reading through all the posts and I'm still confused.
I just put CM7 on an SD card this morning. So far, so good.
First, I read the post < Barnes & Noble Nook Color - Nook Color Android Development - [Ref] Nook Color Links |Guides|How To|Utilities| Etc. 12/26 Read FIRST =) > (sorry, don't know how to put links in a quick reply yet). Read the 4th post, starting at the top of the post, pick the first link, then the second, then the third. This guide is really good. That is what you need to understand it. Then read the 3rd post and pick the link.
This is the generic image you will burn to your SDcard using WinImager (if you are using a Windows PC). After burning your SDcard, unmount it from the PC and then remount it, Then you will be able to see the boot partition. COPY the CM7 ...-encore.zip you wish to use to the card, DO NOT UNZIP it, just copy it to the SDcard. Then unmount the SDcard from your PC and put it into the NC and power the NC.

I used verygreen's method but I'm on 7.02. Having said that I think you mean Sandisk Class 4 8gb, not class 2. FYI.
For a more detailed look at Verygreen's method I found the below link helpful:
http://quinxy.com/2011/04/01/comple...c4-android-2-3-gingerbread-on-the-nook-color/
Hope that helps.
It's pretty easy and people will help you here if you have any problems.

noblerinthemind said:
I used verygreen's method but I'm on 7.02. Having said that I think you mean Sandisk Class 4 8gb, not class 2. FYI.
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Click to collapse
The class only applies to the sequential speed. The random read/write speed seems to depend on.... I dunno, pixie dust? Differences in how clean the clean rooms are? Either way, some of the class 2 Sandisks have outperformed the class 4s in the random benchmark.
I'd go with either a class 2 or class 4 Sandisk, whichever one you find at a reasonable price. I've had good luck with both an 8GB class 2 and a 16GB class 4.