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a Dummies Guide to repartitioning ?

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carkev
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Default a Dummies Guide to repartitioning ?

let me first say that virtually none of what follows is my own work!

I have simply 'tweaked' and plagiarized the brilliant postings made by others, to hopefully make it all a bit more idiot proof for newbies, and lesser mortals such as myself. (respect to 'tselling' in particular) ...
Note that this only for 16GB Nooks that have been rooted, and with CM Recovery available
I'm sure it would work on the 8 gigs, but don't know the figures to use

background:
after rooting, installing CWmod, and a CM 10 rom on my 16 gig Nook Tablet by following the great guides on here, I then wanted to go the whole hog and repartition it.

initially, Veronicas post here: http://forum.xda-developers.com/show....php?t=1531120
seemed the best, as I could get 12 Gig for myself. sadly it did not work for me as my copy of Cwmod does not support 'sqdisk' - but I learned a lot nonetheless.

I then found 'tselling's great post here:http://forum.xda-developers.com/show...5&postcount=25
I eventually resized my partitions to approx 4GB & 9GB, but not without some issues.
the posting stated that all actual commands were in bold, eg: 2nd command was (parted) print but this failed.
“back in the day”, I was very good with MSDOS and batch files, so I knew in my heart that I had missed something obvious!, yep! - (parted) is the screen response, print is the command ... from then on it was all a bit of a doddle

so here is my two pennyworth:
preparation: read everything at least once! ... and ensure you have done a full CM backup !

1. from all the great guides on here, ensure that you know how to connect your Nook to a PC,install drivers, and 'ADB' etc, and how to get into an ADB Shell.
2. the method works via CW Recovery, which can be either from an sdcard, or installed internally, (as mine is). do not continue until you are comfortable with all that

3. reboot your Nook into Recovery, cable it to your PC, and get ADB running.
4. run command ADB devices, then ADB shell to ensure you have connectivity.

5. all the actual commands to enter into your PC are in red (some are just single letters)
6. screen responses from ADB are in black (but not bold)
7. my comments and observations are in blue (but not bold)
8. despite the length of this post, (and my blathering), the whole process takes less than 10 minuets, and only entails the copying and pasting of 24 commands from here, onto your PC

9.some of the screen responses you will get are not exactly as I have got shown below. (this is simply because I had already done it once for 4 & 9 gig, and this was my 2nd run for 12gig.)
10.even if you mess up, don't panic, as the backup you made earlier can easily be restored with your CM recovery, and you are good to go again.
11. so let's start:- below are the commands to copy into your PC (remember, red lines only)

~ # parted /dev/block/mmcblk0
parted /dev/block/mmcblk0
GNU Parted 1.8.8.1.179-aef3
Using /dev/block/mmcblk0
Welcome to GNU Parted! Type 'help' to view a list of commands.
(parted) print (here we are simply asking it what partitions we currently have, but we don't get them until we do the 2 required 'fixes' that follow)
print
print
Error: The backup GPT table is not at the end of the disk, as it should be.
This might mean that another operating system believes the disk is smaller.
Fix, by moving the backup to the end (and removing the old backup)?
Fix/Ignore/Cancel? f
f
f
Warning: Not all of the space available to /dev/block/mmcblk0 appears to be
used, you can fix the GPT to use all of the space (an extra 569312 blocks) or
continue with the current setting?
Fix/Ignore? f
f
f
Model: MMC SEM16G (sd/mmc)
Disk /dev/block/mmcblk0: 15.9GB
Sector size (logical/physical): 512B/512B
Partition Table: gpt

Number Start End Size File system Name Flags
1 131kB 262kB 131kB xloader
2 262kB 524kB 262kB bootloader
3 524kB 16.3MB 15.7MB recovery
4 16.8MB 33.6MB 16.8MB boot
5 33.6MB 83.9MB 50.3MB fat32 rom
6 83.9MB 134MB 50.3MB fat32 bootdata
7 134MB 522MB 388MB ext4 factory
8 522MB 1164MB 642MB ext4 system
9 1164MB 1611MB 447MB ext4 cache
10 1611MB 2684MB 1074MB fat32 media
11 2684MB 15.6GB 12.9GB ext4 userdata

(parted) rm 11 (removing partition 11, it needs to be removed as most of that space will be needed for partition 10 to stretch in to)
rm 11
rm 11
(parted) resize
resize
resize
Partition number? 10 (partition 10 is the one we want to the be largest, so it is to be resized))
10
10
Start? [1611MB]? (1611MB is end of partition 9, so don’t' anything -just hit enter key only)


End? [2684MB]? 13.6GB (increased from tsellings 11.6GB) (I put an extra 2 gig here as the original instructions ended up with 9 gig and 4 gig)
(also, there will be a pause here whilst it completes)

13.6GB
13.6GB
(parted) p
p
p
Model: MMC SEM16G (sd/mmc)
Disk /dev/block/mmcblk0: 15.9GB
Sector size (logical/physical): 512B/512B
Partition Table: gpt

Number Start End Size File system Name Flags
1 131kB 262kB 131kB xloader
2 262kB 524kB 262kB bootloader
3 524kB 16.3MB 15.7MB recovery
4 16.8MB 33.6MB 16.8MB boot
5 33.6MB 83.9MB 50.3MB fat32 rom
6 83.9MB 134MB 50.3MB fat32 bootdata
7 134MB 522MB 388MB ext4 factory
8 522MB 1164MB 642MB ext4 system
9 1164MB 1611MB 447MB ext4 cache
10 1611MB 13.6GB 12GB fat32 media lvm

(now making partition 11, which was removed earlier)

(parted) mkpartfs primary ext2
mkpartfs primary ext2
mkpartfs primary ext2
Start? 13.6GB (ie: - where partition 10 ended earlier)
11.6GB
11.6GB
End? 15.6GB
15.6GB
15.6GB
(another pause here whilst it does it)
(parted) p
p
p
Model: MMC SEM16G (sd/mmc)
Disk /dev/block/mmcblk0: 15.9GB
Sector size (logical/physical): 512B/512B
Partition Table: gpt

Number Start End Size File system Name Flags
1 131kB 262kB 131kB xloader
2 262kB 524kB 262kB bootloader
3 524kB 16.3MB 15.7MB recovery
4 16.8MB 33.6MB 16.8MB boot
5 33.6MB 83.9MB 50.3MB fat32 rom
6 83.9MB 134MB 50.3MB fat32 bootdata
7 134MB 522MB 388MB ext4 factory
8 522MB 1164MB 642MB ext4 system
9 1164MB 1611MB 447MB ext4 cache
10 1611MB 13.6GB 12GB fat32 media lvm
11 11.6GB 15.9GB 2326MB ext2
(success! look at nos 10 & 11 -my partitions are now 12GB and 2.36Gb,rather than the 4 & 9 as in the original 'tsellings' posting)

(parted) name 11 userdata (just naming partition 11)
name 11 userdata
name 11 userdata
(parted) p
p
p
Model: MMC SEM16G (sd/mmc)
Disk /dev/block/mmcblk0: 15.9GB
Sector size (logical/physical): 512B/512B
Partition Table: gpt

Number Start End Size File system Name Flags
1 131kB 262kB 131kB xloader
2 262kB 524kB 262kB bootloader
3 524kB 16.3MB 15.7MB recovery
4 16.8MB 33.6MB 16.8MB boot
5 33.6MB 83.9MB 50.3MB fat32 rom
6 83.9MB 134MB 50.3MB fat32 bootdata
7 134MB 522MB 388MB ext4 factory
8 522MB 1164MB 642MB ext4 system
9 1164MB 1611MB 447MB ext4 cache
10 1611MB 11.6GB 9989MB fat32 media msftres
11 11.6GB 15.9GB 4326MB ext2 userdata

(parted) quit (just quitting 'part' only, and staying in the ADB shell)
quit
quit

(Information: You may need to update /etc/fstab - I did.)

~ # tune2fs -j /dev/block/mmcblk0p11
tune2fs -j /dev/block/mmcblk0p11
tune2fs 1.41.6 (30-May-2009)
Creating journal inode: done
This filesystem will be automatically checked every 30 mounts or
0 days, whichever comes first. Use tune2fs -c or -i to override.

~ # e2fsck -fDp /dev/block/mmcblk0p11
e2fsck -fDp /dev/block/mmcblk0p11
/dev/block/mmcblk0p11: 11/529056 files (0.0% non-contiguous), 49429/1056092 blks

~ # tune2fs -O extents,uninit_bg,dir_index /dev/block/mmcblk0p11
tune2fs -O extents,uninit_bg,dir_index /dev/block/mmcblk0p11
tune2fs 1.41.6 (30-May-2009)

(now running e2fsck on the files system)

~ # e2fsck -fDp /dev/block/mmcblk0p11
at this point, my system did not show all the 'fixed' responses as in 'tselling's original post but it did end with the same confirmation that all was ok,
ie:
/dev/block/mmcblk0p11: 11/529056 files (0.0% non-contiguous), 49429/1056092 bloc ks
so it is ok to continue


~ # parted /dev/block/mmcblk0
parted /dev/block/mmcblk0
GNU Parted 1.8.8.1.179-aef3
Using /dev/block/mmcblk0
Welcome to GNU Parted! Type 'help' to view a list of commands.
(parted) p
p
p
Model: MMC SEM16G (sd/mmc)
Disk /dev/block/mmcblk0: 15.9GB
Sector size (logical/physical): 512B/512B
Partition Table: gpt

Number Start End Size File system Name Flags
1 131kB 262kB 131kB xloader
2 262kB 524kB 262kB bootloader
3 524kB 16.3MB 15.7MB recovery
4 16.8MB 33.6MB 16.8MB boot
5 33.6MB 83.9MB 50.3MB fat32 rom
6 83.9MB 134MB 50.3MB fat32 bootdata
7 134MB 522MB 388MB ext4 factory
8 522MB 1164MB 642MB ext4 system
9 1164MB 1611MB 447MB ext4 cache
10 1611MB 11.6GB 9989MB fat32 media msftres
11 11.6GB 15.9GB 4326MB ext4 userdata

(parted) quit (simply quitting 'part')
quit
quit
~ # reboot recovery (finally, the last command)

at this point the Windows CMD box on your PC will drop out of ADB, and your Nook will reboot back into Recovery,
where, from “backup and restore - advanced restore” you can restore your data partition only.
Reboot system yet again, and all should be fine

I have attached photo of mine.
.................................................. .................................................. .......

Also, once you've done all this you can, if you wish, go back into an ADB shell and enter the following commands one at a time

cd "/data/media/B&N Downloads"
rm -r *
cd ..
rmdir "B&N Downloads"
ln -s "/media/B&N Downloads" "B&N Downloads"

this points your B & N library to your /media folder for downloading, helpful if you want to manage all your books in Calibre.
.................................................. .................................................. ...........
again,
many thanks, and my full respect and appreciation, to all those whose knowledge and postings here at XDA have made all this possible for the less experienced amongst us.
Kevin
ps: it's a pity though that I do not know ADB as well as I do MSDOS, else I would have compiled a 'batch file' or script to make it automated.
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nooknut
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Wow. Thanks. This was just what I needed. For some reason, I simply couldn't get my PCs at home to load the appropriate USB driver update for my Nook. So I did it on my Mac. I have RARELY ever opened a shell on a mac. But with a couple searches, a download or two, and this simple guide, not only did I get my nook to show up on my mac (via CWM) but to also adjust my partitions.

Awe-Some!

 
carkev
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Quote:
Originally Posted by nooknut View Post
Wow. Thanks. This was just what I needed. For some reason, I simply couldn't get my PCs at home to load the appropriate USB driver update for my Nook. So I did it on my Mac. I have RARELY ever opened a shell on a mac. But with a couple searches, a download or two, and this simple guide, not only did I get my nook to show up on my mac (via CWM) but to also adjust my partitions.

Awe-Some!

glad it was of some use mate,
but remember, it was not really a result of my knowledge, all I did was put it all together a bit more simply.
 
nooknut
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Quote:
Originally Posted by carkev View Post
glad it was of some use mate,
but remember, it was not really a result of my knowledge, all I did was put it all together a bit more simply.
Understood. It takes a village.
 
CrazyShot
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Default Same here

Quote:
Originally Posted by nooknut View Post
Wow. Thanks. This was just what I needed. For some reason, I simply couldn't get my PCs at home to load the appropriate USB driver update for my Nook. So I did it on my Mac. I have RARELY ever opened a shell on a mac. But with a couple searches, a download or two, and this simple guide, not only did I get my nook to show up on my mac (via CWM) but to also adjust my partitions.

Awe-Some!

Nook was recognized as NookTablet without driver from recovery, instead of ADB device or something, so I couldn't update driver for it, as it didn't
Took me 40 minutes to finally give up and open my work mac. Worked like magic from there.
Can anyone explain why this happens on windows?

---------- Post added at 12:37 AM ---------- Previous post was at 12:20 AM ----------

Did the whole guide (thanks a big for really easy-to-follow guide), because I thought that it's totally locked and unusable with Cyanogenmod. And then I understood that it's actually used by CM for apps, apps data and cache.

So I have few questions.
1. After some time of usage, do you feel that 2GB is enough for all apps and their data?
2. Is it possible to make apps that do additional download use internal storage (the freed 12GB) instead of requiring external SD? Is it maybe a matter of mounting it as sdcard1 somehow?
3. Is it totally impossible to use same partition both for apps and for media and just mount some folders right way?

Sorry for the noob questions, i'm just totally new to android partitioning and mounting.
 
carkev
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(Last edited by carkev; 20th February 2014 at 11:33 AM.)
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Quote:
Originally Posted by CrazyShot View Post
Nook was recognized as NookTablet without driver from recovery, instead of ADB device or something, so I couldn't update driver for it, as it didn't
Took me 40 minutes to finally give up and open my work mac. Worked like magic from there.
Can anyone explain why this happens on windows?

---------- Post added at 12:37 AM ---------- Previous post was at 12:20 AM ----------

Did the whole guide (thanks a big for really easy-to-follow guide), because I thought that it's totally locked and unusable with Cyanogenmod. And then I understood that it's actually used by CM for apps, apps data and cache.

So I have few questions.
1. After some time of usage, do you feel that 2GB is enough for all apps and their data?
2. Is it possible to make apps that do additional download use internal storage (the freed 12GB) instead of requiring external SD? Is it maybe a matter of mounting it as sdcard1 somehow?
3. Is it totally impossible to use same partition both for apps and for media and just mount some folders right way?

Sorry for the noob questions, i'm just totally new to android partitioning and mounting.
I'm glad that you managed it ok with you Mac and the only thing I can think of re Windows USB drivers is that sometimes windows can have too many drivers on it ( from other devices that you may not use anymore) and it gets confused
this has happened to me, and I use a simple utility I found called USBDeview with which it is easy to uninstall drivers for old phones/printers etc.
it can be found here: http://www.nirsoft.net/utils/usb_devices_view.html

as to your other 3 questions, 2 gig for apps has proved more than enough for me,
but I don't know enough to advise on you with Qs 2 & 3.
 
CrazyShot
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Default fstab

Hi, something that I missed in your guide.
You said you modified "fstab".
Can you tell what is it and why/how to modify it, or point to good article about it?
 
carkev
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Quote:
Originally Posted by CrazyShot View Post
Hi, something that I missed in your guide.
You said you modified "fstab".
Can you tell what is it and why/how to modify it, or point to good article about it?
I'm sorry mate. but I can't remember!

I picked up everything from either Veronica's or Tselling's original posts as I said,
and can only assume that this was something I actually did whilst doing the process.
I don't have the Nook anymore, so cannot go through it again as I did. having said that it probably isn't that important
 
sagirfahmid3
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Quote:
Originally Posted by CrazyShot View Post
Hi, something that I missed in your guide.
You said you modified "fstab".
Can you tell what is it and why/how to modify it, or point to good article about it?
Fstab is a file that checks where your drive partitions are mounted. For example, on Linux, it's stored as a file called /etc/fstab, and you modify it if you want to map other harddrives or partitions (or even ISO images and such) to a mountpoint.

It is VERY important. If you mess up your fstab, your computer or device may be unable to boot, depending on how much you mess it up (but your data will remain intact).
Nook Color running CM7 Mirage, no gapps, Nook Tweaks app @ 1.3GHz (+500MHz past stock 0.8GHz)
Nook Tablet running CM10.1.3, no gapps, BexusNv4 kernel @ 1.3GHz (+300MHz x2 past stock 1GHz)
SGS2 T-Mobile (unlocked) running HellyBean 4.2.2, no gapps, @ 1.72GHz (+~200MHz x2 past stock 1.51GHz)
 
carkev
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Quote:
Originally Posted by sagirfahmid3 View Post
Fstab is a file that checks where your drive partitions are mounted. For example, on Linux, it's stored as a file called /etc/fstab, and you modify it if you want to map other harddrives or partitions (or even ISO images and such) to a mountpoint.

It is VERY important. If you mess up your fstab, your computer or device may be unable to boot, depending on how much you mess it up (but your data will remain intact).
thanks, good advice - obviously I was quite lucky with whatever I did!

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