yashsingh1/xdaforums huggingface dataset:
[Nook Color Android Development] MarkE08:
That uSD works for me.

danbutter is right. I've been using that very uSD card you linked and it's been working like a champ with the SD Eclair (rooted), SD Froyo, and now SD CM7.

I'm currently running Dalingrin's kernel from 4/4 @ 1ghz (via SetCPU with no profiles, FWIW). I'm actually looking to get another one so I can swap between configurations.

Mark
[Nook Color Android Development] sark666:
How stable is cm7 for you guys?

It's relatively stable, but I do get some weird issues. For ex, last night I installed kobo reader from the market and it worked fine. Then I turned off wifi and tried to load a book previously imported from when I first installed.

Kobo forced closed and even said this epub might be corrupted (it's not). Then market fc'd and everything seemed just unstable. So I rebooted and back to normal. I can't use pulse at all. Keeps Fc'ing. I've removed it, cleared it's cache etc, but same thing.

Again, cm7 has been stable for the most part but still encounter some weirdness with the final. It's definitely useable (using it everyday) but I wouldn't call it rock solid by any stretch.

What I don't know is are these issues with cm7 and nc or could the sdcard install be the culprit? Not knocking the great work done here, just wondering if using an sdcard can potentially cause any issues that a normal install wouldn't exhibit.
[Nook Color Android Development] 34Ford:
So I assume sometimes his finger hit the "u" and sometimes it didn't.:D

Thats cool.
[Nook Color Android Development] lanwarrior:
Looking at the CyanogenMod Settings application info, it has the following Permissions:

- Your personal information: read contact data, write contact data

- Your accounts: use the authentication credentials of an account

What does this have the ability to read/write my contacts AND use my Google account?
[Nook Color Android Development] lanwarrior:
I believe it's the SD card. Even with a good one, it's still way to slow compared to the built-in internal memory of the Nook. Heck, even with the Nook own OS running in the internal memory, sometimes things slow down.

I have installed HoneyComb and now CM7 on the SD Card, but have performance issues AND sometimes just unstable, necessitating a reboot.
[Nook Color Android Development] 34Ford:
Well I installed it and its running fine. So how do you access the SD card?

I tried the File Manager that was installed, but I still dont see it.

I want to install Root Explorer.

EDIT: Oh do I need to partition the card?
[Nook Color Android Development] jtbnet:
Actually the one hardware shortcut/cheap out that was taken on the design of the Nook was that they used comparitively slower eMMc (internal Memory)... still fast enough But I run from KingMax Class-10 SDcards only now and my last quadrant score for CM7 was 2683 running OC to 1100/performance... haven't seen any scores this high including from folks running on eMMC... So the quality/speed of the SDcard is important and can actually provide equal to or better performance/IO speed than the internal eMMC...
[Nook Color Android Development] sark666:
When I got my nook, I grabbed an sdcard with little investigation.

Is there a way to test not necessarily the speed but test it's reliability? Like a write/read test. But I guess I'll have to clear the card for a test like that.

I would expect some sluggishness if the sd card isn't top notch, but just want to determine if the sd card is causing some instability issues.
[Nook Color Android Development] yazyazoo:
Did you use SetCPU or CM7 to set the OC? DId you select performace setting?

I get 1947 scores with my WIntec Class 6 card.

I have been getting some lag on the browser sometimes. It hangs for a bit. Is this from the card speed or just slowness of the CPU?
[Nook Color Android Development] jtbnet:
I only use CM7 performance settings... Haven't found a need or benefit with SetCPU on CM7 and it can cause issues... I was running the dal's 14a test kernel which has been considerably faster but with this last few stable OC kernels I was getting just over 2400 so also good for scores... I Quadrant IO speed can great affect the end result so your class-6 at ~2000 vs. true class-10 @2400 seems reasonable difference based on IO speedup, if fact I'd say you have a good performing class-6...
[Nook Color Android Development] yazyazoo:
Thanks for the input. Have you tried any of the SD card tweaks where it supposedly uses a bigger cache to speed things up? I think they stated the default was to use a small amount of the sd card for cache which could affect speed. Also do you leave your CM7 Performace settings to performace and 1100 for both low and high settings?
[Nook Color Android Development] JohnnyDanger:
Hi everyone. I installed CM7 with the method in the original post here and want to know if anyone can point me in the right direction as to how to overclock. I want to OC to 1.1ghz. I appreciate any help anyone can give.
[Nook Color Android Development] mrmark93:
The first post of this thread details exactly how to install an overclock kernel.
[Nook Color Android Development] PMDColeslaw:
If i were to want to use phiremod with this card would I just need to rename the .zip to update-phiremod-v6.zip?
[Nook Color Android Development] JohnnyDanger:
Good grief. I dont know how I missed the "OC Kernel installation instructions:" section. I swear I looked at it several times, but it just didnt register. I think I was looking for something that had to do with an app or something.

Thanks for answering me though.
[Nook Color Android Development] juanpow3r:
Hi guys, this is working great for me except for one issue. My Nook/PC only see the boot partition. The "storage" partition is there and formatted in FAT32, but it's not being recognized. Any suggestions?
[Nook Color Android Development] robot8:
Been very happy with my CM7/OC kernel SD card install on a Class 6 8G Transcend, some random FCs and quirkiness here and there notwithstanding, until today when I tried streaming video and was getting very annoying intermittent artifacts.

Now streaming video is something very important for me and I really wanted to resolve it. So after half a day testing, tweaking, reinstalling and ruling out near every possibility, I turned to the board in desperation and found this post:

http://xdaforums.com/showpost.php?p=12964262&postcount=8

Apparently, what makes the difference in general performance zippyness is the speed of the small block random writes of your SD card.

I believe this would fix my video streaming issue, and probably would help anyone else who may be having problems with performance and stability. Gonna go grab a Class 2 Sandisk card asap and will test.

Just wondering, anyone here using a Class 2 Sandisk (or any other el cheapo) card and is not at all happy with it?
[Nook Color Android Development] cruud:
How do I remove this? I've formated system and boot. Also dd'ed stock images. I then used a CWR card to flash CM7. It booted up and was working. I restarted, this process popped up, removed CM7, flashed something older. I thought all partitions were stock, I don't know what's going on anymore, please help.
[Nook Color Android Development] joe2262:
I've got CM7 running from a uSD card nicely using the 4/04/11 OC kernel. The only thing is when I want to upgrade to the latest nightly. I have to rename a few files to get into recovery:

uImage -> uImage.old

uRamdisk -> uRamdisk.old

uRecImage -> uImage

uRecRamdisk -> uRamdisk

now recovery/upgrade goes just fine. But... I'm then renaming uImage.old -> uImage to get OC'ing back and also renaming uRamdisk.old -> uRamdisk. Is this OK or should I be using the uRamdisk file installed during the upgrade?
[Nook Color Android Development] joe2262:
Are you on Windows? Win won't pick up the ext4 partitions without some help. If you just want to see that they exist and how much space is used/available launch 'terminal' and type 'df'.
[Nook Color Android Development] 34Ford:
Im in the same boat. My 16gb card shows 4 partitions in windows 7 management.

One is 118mb fat32 Boot partition.

a 463mb primary

a 965mb primary and

a 13gb unformatted partition.

It need all 4?
[Nook Color Android Development] joe2262:
Did you look at in terminal?

One is probably /system, another is /data and the last is /sdcard.

EDIT: Yes, you need them.
[Nook Color Android Development] dkarale:
I am a noob to this SD card of CM7 installer. I installed the CM7 to the nook color on the SD card fine. Now, I want to install the OC Kernal to the SD card but I don't understand the following and how. I don't want to mess up the nook color. I downloaded the "update-CM7-dalingrin-OC-sd-040411", after unzipped, there's only :uImage file, SYSTEM folder and META-INF folder. Where's that kernel file mentioned on the below description. Can someone give me a detail steps on how to put the OC kernel to the SD card? Thank you so much.

"Get CM7 OC kernel from Dalingrin's thread. Unpack the zip file, the result should be a file with the name "kernel" and some other stuff. Rename the kernel file to uImage.

Shutdown your nook and take the uSD card out (make sure the nook is not plugged into USB bus or it'll boot into eMMC then).

Plug the SD Card into the computer, copy uImage file you just created to the first partition (the partition name would be "boot") instead of the existing file with this name (might want to save the original file just in case)."
[Nook Color Android Development] robot8:
In the download it is already named uImage, so all you have to do is:

Plug the CM7 SD Card into the computer, copy the new uImage file to the first partition ("boot") on your card and replace the existing file with the same name (save/rename the original file just in case). Then remove card, plug into your Nook and reboot. You're now running the OC kernel, check performance in Cyanogenmod settings to confirm.

edit: should note that this only works for the main kernels up to 040411 as of this edit. The test builds can't be replaced this way.
[Nook Color Android Development] chazglenn3:
Can someone please tell me what I am doing wrong??? I extracted the image from the first post and installed it to the SD card using WinImage, and then I installed the CM7 zip to the root of the card. I put the card in the Nook and turn it on. However, when I boot the Nook it goes to the standard Nook startup.

***Update*** Nevermind...I got it to work using a different image writing program.
[Nook Color Android Development] PMDColeslaw:
Can someone tell me how to get the nook to see the sdcard partition as the sdcard? I created a 16gb cm7 card and the rom runs great and shows 13+gb of sdcard space but the nook looks to the boot partition when its is told to access the sdcard.
[Nook Color Android Development] jtbnet:
I haven't tried any of the tweaks/buffer/cache changes as I've been pretty happy with my stock settings performance...
[Nook Color Android Development] KnowledgeBroker:
I did a search and never saw a fix for when you hang eternally at "writing superblocks and filesystem accounting information:"

I saw that this looks like an error people who have 16gig cards get, and I am confused that someone above was able to get it working.. what do I need to do? I followed instructions to the T..
[Nook Color Android Development] patgnds:
I am using a sandisk 16 GB with no problems. I have other cards Kinkston and Transcend that keep getting FC. Maybe it has to due with the card you are using.
[Nook Color Android Development] DizzyDen:
BUT... did you have to use a smaller card initially, then duplicate it to the 16 GB card and extend 4th partition?
[Nook Color Android Development] patgnds:
no, it worked great the 1st time
[Nook Color Android Development] KnowledgeBroker:
Isn't the way each partition formatted kind of special? I have a class 10 card, best I could buy, very snappy with other roms.. what type of card shouldn't matter as long as the nook recognizes it.

Is there another way to do this, like you would install froyo or something on an sd card?
[Nook Color Android Development] Thirtybird:
Easy fix, just install the program from samuelhalff on your Nook!

http://xdaforums.com/showthread.php?t=952456

run it, and mount the 4th SD partition and that's your "SD card" partition!
[Nook Color Android Development] KnowledgeBroker:
I am using mac osx.. It seems to create the partitions right on the 16 gig sd card, but I don't see how I can mount the other 3 partitions besides the one called boot.. I am trying with an 8 gig card now to see what I can do there.

I would rather someone explain why it stops at "writing superblocks and filesystem accounting information:" which is an issue noted multiple times in this thread regarding 16gig cards instead of trying to blame the card itself.

8 Gig card went without a hitch, and it is a low class offbrand card.. I am going to see if I can find a way to copy over to the 16 gig card, but I would rather see a solution for those of us that may be having the issue..

EDIT: Okay, I can't mount/view the data partitions, so I can't copy from one sd to another. I am going to see if there is another way, but when in terminal and I do a diskutil list those partitions are listed as linux

Edit2: I am currently trying to get my card reader to be detected in a virtual ubuntu, as copying the files in linux would be easier than trying to get osx to read ext file structures.. Is there no way to install CM7 on the partitions using disk utility like you can when you do a froyo sd card?
[Nook Color Android Development] PMDColeslaw:
No see, I can mount the sdcard partion on the pc just fine using adb. The problem is that the Nook looks at the boot (1st) partition as the sdcard for the device instead of looking at the actual SDCard (4th) partition. For example even though I moved all my files to the 4th partition (/sdcard/) when I run Titanium backup it looks in the boot partition for the files instead of in the 4th partition because the Nook is telling the apps that partition 1 is the sdcard instead of partition 4. I hope this is making sense. :confused:
[Nook Color Android Development] DizzyDen:
It is actually the script that creates and formats the partitions when you boot the card. The reason you can only see "boot" parition is because all 4 partitions are "active"... you can use some utilities and or partition managers to see the other partitions... to make them useful in your computer, you have to make only one acive... that is the partition the OS will see.

That is the indication that the mke2fs command failed... it has been my experience all along with ANY 16 GB uSD I have tried... everything seems to be fine... then it hangs writing superblocks and accounting info... because the partition is NOT formatted.

This is also the norm... the easiest way to copy it over is to use a disk imager software... read the 8 GB uSD after the partitions are created and formatted... then write the image to the 16 GB uSD... use a partition management software to extend the 4th partition to use the remainder of the card.

As for this... I don't use a Mac... so cannot help.
[Nook Color Android Development] KnowledgeBroker:
One valuable thing to know, it DID create 4 partitions on the 16 gig card, but none of the file systems were recognized..

I am more than frustrated, I got linux finally up and running, recognizing the sdcard reader, learned the commands needed to copy the files over with permissions intact, formatted the file systems correctly on the 16 gig card, then copied everything over.. the one thing I didn't think to do was reformat the BOOT partition, as that seemed to be fine, or so I thought.

Basically, I turned it on and it hung on the boot screen.. turned it off, and it won't turn back on no matter what I do. Totally baffled here, this shouldn't have done anything to the stock system.. so for now I am going to sleep on it, and play with it tomorrow and HOPE for better results.

Really wish I had bought the extended warranty now, I know I coulda made them give me a new one, just never bricked an android.. :(

EDIT: Well, I took out the uSD and kept on trying to boot it since osx would popup a usb device for about half a second.. eventually the screen kicked on, and it booted as normal. Gonna keep trying tho, I don't give up easily.

I would still like to know if there is a way to do it like you would the nookie froyo sd way, or is the problem how the cm7 zip package would unzip..?
[Nook Color Android Development] DizzyDen:
SBD.... it is not CM7... it seems to be limitations of mke2fs.... the workaround I used for my 16 GB card is as I described... created 8 GB card... imaged it to 16 GB and expanded 4th partition....

Oh one thing I did recently... since I dual boot with uSD in... I made the boot partition almost 4 GB so the rooted eclair has that as the uSD when I'm it.

If you need... I can upload an 8 GB card image you could write to your 16 GB... if you have software on the Mac that can expand the partitions you should be golden.
[Nook Color Android Development] KnowledgeBroker:
Edit: Originally I was going to ask, but sometime over my sleepless night I was able to create an image of my working uSD, and I just got it switched over and it appears to be working flawlessly.

I do have a random question.. I assume this doesn't have the stock reading software and such, is there a way to get that on here? I liked having magazines automatically delivered, and it wasn't too bad to read on either.

Edit2: Nevermind, got everything installed, then went to restore some basic apps with titanium backup, then messenger, bluetooth sharing, and calendar app started force closing, rebooting the nook, over and over.

All I really miss is the video aspect. Give me flash, and I am a happy guy.. but not if it means lag, losing the stock reader app, instability, and who knows what else.. I can just wait till the official froyo update comes out, which is supposed to be this month.
[Nook Color Android Development] DizzyDen:
SBD... the solution to your problem may be dual boot on SD to boot rooted Eclair on eMMC or CM7 on SD depending on if you use "n" button on boot... you can boot to rooted to have magazines and kid's books in B&N reader... or CM7 for video and use reader app from the market for books (just not kids books)
[Nook Color Android Development] danbutter:
Would this be why AdFree from BigTinCan won't work with CM7? I've not had any experience with any other version/installation of CM7, but it did work with nookie froyo .6.8 on SD card.
[Nook Color Android Development] SCWells72:
Has anyone successfully used Dalingrin's latest test kernels (post-4/4/11) on an SD card-based CM7 install? There are several folks (myself included) on that thread who have tried unsuccessfully to do so.

This is making me think it may be time to move from a "test drive" of CM7 on SD card to eMMC. I never boot into stock anymore anyway. Speaking of that, what would be the easiest way to migrate my existing SD card-based CM7 apps/config to an eMMC-based install? Titanium Backup? if so, with what settings?

Thanks!
[Nook Color Android Development] jmak10:
I have the same questions about the OC kernel and the easiest way to clone my CM7 SD install on the emmc

Thanks,

jmak
[Nook Color Android Development] khaytsus:
Yeah, I finally updated to 0418C today. I didn't use CWM, I did what I always do, copy uImage to /boot and system stuff to the appropriate places.
[Nook Color Android Development] DizzyDen:
I have posted several times how to update the OC kernel on SD installs....

Yes, I am running 4-18C on my CM7 SD install...

1. With NC running CM7 connect to your computer

2. adb remount

3. adb push contents of system folder from extracted kernel update to system folder on SD (e.g. adb push system /system)

4. turn off NC take SD card to computer and copy uimage to the boot partition

5. put SD in NC and boot it up
[Nook Color Android Development] SCWells72:
AHA! There's a VERY important distinction in your steps. You're pushing the contents of system into /system, not into the system directory that's in the boot partition. I'd been doing the latter. I just followed your steps (though I just adb mounted the boot partition and pushed uImage directly to it instead of putting it into the SD slot) and it worked! Now I'm getting Quadrant scores in the 2300-2500 range! Thanks so much!!!
[Nook Color Android Development] RileyGrant:
I cannot boot into the "recovery" mode to update my build, any help here?
[Nook Color Android Development] janorton05:
Thought I would let everyone know that i was able to use a 16GB card right from the start. I used the win32diskmanager to burn the .img to the SD stuck cm7 on and it worked with no errors. The card I'm using is out of one of my droids i got through insurance. Dont know if that matters. It also shows that I have 13GB SD storage in settings.
[Nook Color Android Development] joe2262:
Rename like this::

uImage -> uImage.old

uRecImg -> uImage

uRamdisk -> uRamdisk.old

uRecRam -> uRamdisk

put card back in and upgrade.

See msg #325.
[Nook Color Android Development] robot8:
To update to a new nightly build, can't it get into recovery by holding power and N key and releasing when the bootloader msg comes up?
[Nook Color Android Development] khaytsus:
There is NO reason to do this, it will automatically do the upgrade for you, per the first post.

Timing is the only issue. Put the zip file on the first partition of the SD card, hold Power and N for 8 seconds then release the Power, continue to hold the N key. If you actually hold it 8 seconds, it will install the update.
[Nook Color Android Development] joe2262:
Not working here, just boots up.

EDIT: Never mind, it is timing sensitive.
[Nook Color Android Development] khaytsus:
Uh.. Yeah. I said that ;) Timing is the only issue.
[Nook Color Android Development] kz121:
help with installing size-agnostic sd card image & cm7

hello all... can someone please be a daisy and tell me, in detail, how to burn the image to the SD card? i'm running a MacBP osx10.6. I have attempted to use the terminal window to burn the image to my 16g PNY class10 sdmicro card but everytime i do - the card is unreadable to any device and requires re-formatting. this is my 2nd card.

my nook color is NOT rooted (and i really don't want to root it), I had success installing HC3 but it's useless as it is still way to under-developed and couldn't get ADB to work to push gapps or anything else to make it functional.

this is week two with more then 20hrs of forum scavaging and trial end error to get this to fly so for me so my patience is wearing thin - how can i burn the generic size agnositc .img.gz to my microsd so that i can copy cm7's nightly build to it and get it running??? it would seem that the process to burn the image should be like this via a terminal window: dd if=generic-sdcard-v1.1.img of=/dev/disk1 bs=1m but this leaves me with an unbootable card. any other ideas?

i previously tried (on a different sd card) using the HoneyComb3 sd image which kindly does the sd card prep and installs honeycomb and then deleted all the files and replaced them with the ones for CM7 but when I did this, I left cm7 trying to install for a lengthly amount of time (more then 10-15mins) and the screen remained frozen at the words "expanding superblocks) ... it never recovers - after a hard reboot it attempts to load cm7 but freezes with the word "android" at the lower left in landscape mode and never boots

PLEASE - someone - anyone - HELP!

Thank you soooooo much!

Chris (kz121)
[Nook Color Android Development] DizzyDen:
My first thought is whether you are extracting the img file from the .gz?

I don't have mac.. so cannot help a great deal in that regard... but you do have to extract the .gz file... it should yeild a pure .img file.... that file can be written to the SD.

The freeze at the superblock line is the mke2fs failing on formatting the first ext partition... the only work around I have found for that is to use a maximum 8 GB uSD to do initial setup... image it... write to 16 GB uSD and expand 4th partition to use all available space.