Hello everyone, after temp fixing my laptop with ubuntu I mounted my stock SD and I figured out that it didn't have any ext3 partition only a fat32 partition...
Now I'm wondering what isthe best use of partitions on the sd...
From what I've learnt in various 3D ( unluckily outdated):
ext2: seems to be good, fast, linux native, no journal ( no useless data written on sd)
ext3: like ext2 but with journal ( dunno if on latest stock rom is optimized)
ext4: not supported by stock rom
swap: it might shorten sd life, but I didn't understand if it's really useful nor if is supported
fat32: useful for photos, videos, write data easily with windows...
Concluding and considering that I'm using latest stock rom(for the moment): ext partitions runs app really faster than fat32 and allows all app's cache to be written on ext partitions rather than internal memory?
Swap partition is worth of it(in which size?)?
[OT]Aside from benchmark in daily use there is difference between class 4 and 10 cards???
Thank you, and forgive me for any grammatical error ^^
What's the reasoning behind wanting ext partition on your sdcard? Do you really need that much room for apps and cache?
I think internal storage is much more efficient (faster) for loading apps.
As for swap, really unnecessary on this phone, performance will decrease hard,ram is much faster than flashmem and android's native task killing does an adequate job of freeing ram for active apps to run.
Also benchmark on the sdcard measures 2 things, read speed and write speed so faster usually equals faster. That said, you're probably not going to notice a huge difference on stock rom unless you transfer a lot of files to your PC.
Oh well, I've still a lot of free space, it was asking for the future ^^
BTW thank you, I've cleared all my doubts!
Related
Hey guys,
Sorry to ask, and forgive me for been dumb, not really a Linux user here.
I need help with some details. I have my Hero - rooted with 0.7 Fresh 8GB SD on it.
What is the advantages of partitioning your SD - let's assume :
Swap-size = from 32mb to ummm 1024MB
Ext2-size = from 512mb to ummm another 1024mb.
Is there any standard procedure/requirement for this.
Also, let's assume I did this and this the following :
SD: ext2 to ext3
Can anyone put this in English language for me
I did all of this and was hoping that my phone would reflect a different internal memory size, but it still shows what I had before. I also noticed under "computer management that my SD got reduced by the amount I specified earlier from HTC Recovery mode.
Many thanks in advance
There are 2 different methods for setting up Apps2SD the most common method does not show any reflection in your About Phone screen. The other UNIOn method does, but i have seen very few people use this and I have not clue how to do it. No big deal either way you do it.
If you load the newest recovery from AMON_RA you can specify the size of your partitions. It seems like you are probably using this.
If you ever fill up a 1 gig swap someone wrote a very badly handled program in terms of memory. Swap = Linux version of the Windows Page file. The more you have doesn't necesarily mean the phone will move faster, it just means you have more room to grow. you are still using RAM for programs currently in USE. Swap just holds the stuff out of RAM until it is needed.
ext2 to ext 3: Ext3 from what I understand is just adds journaling and does its own repairs/checks. Stops you from waiting around while ext2 fixes itself if something bad happens.
I am sure someone can correct me if I am wrong on any of this.
CM7 can make you install apps on the sd card, how does it differ from app2sd or app2ext? i have been trying to decide if i should partition my new sd card or its not necessary. There must be an advantage to have app2ext right?
Thank you.
CM7 basically allows you to move all applications using Froyo's app2sd mode. Even ones that have disabled it (like live wallpapers and widgets as those won't work when installed that way).
app2sdext works differently as it will install apps directly to an ext partition on your sdcard (that you manually have to set up). This functionality is NOT build into CyanogenMod, but is easily added with a number of different apps/scripts. This will give you a lot more free space on your phone, and all apps can be installed there regardless of whether they have widgets or have services running. Most app2sdext options will also give you the option of moving the dalvik cache to the sdcard which will save you a substantial amount of space on your internal memory.
Basically, if you want a lot of memory intensive apps, your only decent option with a Nexus One is an app2sdext solution. (I have it with a 1GB partition, and I will soon either need to resize it or delete apps... adding app2sdext was the second best thing I ever did to my phone behind installing CyanogenMod on it.)
bassmadrigal said:
CM7 basically allows you to move all applications using Froyo's app2sd mode. Even ones that have disabled it (like live wallpapers and widgets as those won't work when installed that way).
app2sdext works differently as it will install apps directly to an ext partition on your sdcard (that you manually have to set up). This functionality is NOT build into CyanogenMod, but is easily added with a number of different apps/scripts. This will give you a lot more free space on your phone, and all apps can be installed there regardless of whether they have widgets or have services running. Most app2sdext options will also give you the option of moving the dalvik cache to the sdcard which will save you a substantial amount of space on your internal memory.
Basically, if you want a lot of memory intensive apps, your only decent option with a Nexus One is an app2sdext solution. (I have it with a 1GB partition, and I will soon either need to resize it or delete apps... adding app2sdext was the second best thing I ever did to my phone behind installing CyanogenMod on it.)
Click to expand...
Click to collapse
why didnt i think of that? thank you for your reply... now i should decide whether to do it now or wait till i have reached maybe about a hundred apps. by the way does it have any effect on the speed of the phone if you do that?
I am on cm7 and decided to put cache apps on sd card using ta utility is there any other new apps like that? ta
Can you do this with rooted stock?
lolobabes said:
why didnt i think of that? thank you for your reply... now i should decide whether to do it now or wait till i have reached maybe about a hundred apps. by the way does it have any effect on the speed of the phone if you do that?
I am on cm7 and decided to put cache apps on sd card using ta utility is there any other new apps like that? ta
Click to expand...
Click to collapse
I have a class 4 32GB card, and I didn't notice any appreciable difference in speed. I have moved my apps and dalvik cache to the sdcard using DarkTremor's a2sd. I currently have 260 apps installed on my phone, and that is pushing the internal phone space and the 1GB partition I set up for ext. I am about to bug danger-rat for his instructions on how he resized his internal partitions to give the data residing on the phone more space (I will basically shrink the cache partition and I am looking at resizing my ext partition to 1.5GB or 2GB.
I couldn't live without this anymore. I don't know how I went so long without it. It is so nice to just browse the online market and click install on countless apps without worrying about your space.
If you want to try and move the app data (resides in /data/data) to the sdcard, I have heard that it is recommended to have a class 10 card to keep up with speed requirements. I am not sure how many apps support that.
brettbellaire said:
Can you do this with rooted stock?
Click to expand...
Click to collapse
I believe you can. You would have to have a custom recovery. The main thing I am not sure is if it will mount the ext partition. If you have a custom recovery, do a nandroid backup (just in case it doesn't work), flash the zip for DarkTremor, and reboot the phone (the first boot will take longer).
brettbellaire said:
Can you do this with rooted stock?
Click to expand...
Click to collapse
yes you can.
bassmadrigal said:
I have a class 4 32GB card, and I didn't notice any appreciable difference in speed. I have moved my apps and dalvik cache to the sdcard using DarkTremor's a2sd. I currently have 260 apps installed on my phone, and that is pushing the internal phone space and the 1GB partition I set up for ext. I am about to bug danger-rat for his instructions on how he resized his internal partitions to give the data residing on the phone more space (I will basically shrink the cache partition and I am looking at resizing my ext partition to 1.5GB or 2GB.
I couldn't live without this anymore. I don't know how I went so long without it. It is so nice to just browse the online market and click install on countless apps without worrying about your space.
If you want to try and move the app data (resides in /data/data) to the sdcard, I have heard that it is recommended to have a class 10 card to keep up with speed requirements. I am not sure how many apps support that.
I believe you can. You would have to have a custom recovery. The main thing I am not sure is if it will mount the ext partition. If you have a custom recovery, do a nandroid backup (just in case it doesn't work), flash the zip for DarkTremor, and reboot the phone (the first boot will take longer).
Click to expand...
Click to collapse
thanks for the reply i think i read on darktremors post class 4 will do for the data2sd. I have class 4 16GB sd card would 1GB good for the ext? ty
It really depends on how much you think you will be installing. I did a 1GB partition on mine, but now that I install most of the Amazon free daily apps, that space is dwindling quickly. I have programs that will resize the partition for me, but most will have to wipe the card and partition it manually. I do have the install location set to automatic, so it allows developers to specify whether they want it in the "internal" (really it is on the sdext partition, but to the phone it is internal) or external using the froyo method. The Angry Bird apps all default to install on the sdcard, so my installed app base is even larger than 1GB.
bassmadrigal said:
... adding app2sdext was the second best thing I ever did to my phone behind installing CyanogenMod on it.)
Click to expand...
Click to collapse
I second this
Sent from my Nexus One using XDA App
is it true that cwm sets the partition to ext3 by default? unlike in ra recovery where you still need to convert it? ta
I have heard that it creates it in ext3, but right now, DTa2sd is showing that it is a ext2 partition. I can't figure out how to find out for sure while the card is in the phone. Either way, it is getting mounted as an ext2 partition.
temasek said:
I thought CWM will create ext3 by default? Your steps are ok, np.
Anyway when u read the ext partition type in android, most likely u will see ext2 if u are using official DT script cuz of the auto syntax it uses.
Click to expand...
Click to collapse
then it maybe so, this was posted on the darktremor thread
http://forum.xda-developers.com/showthread.php?p=14134665#post14134665
Well, whether or not it is formatted as an ext3 partition, Android is still mounting mine as an ext2 partition.
Code:
mount | grep ext
NOTE: the "|" is called a pipe. On the keyboard it is the shift option on the backslash key "\". I don't know exactly where it is on the stock keyboard, but on swype it is located under the "D" key when the keyboard has the shift key pressed and you access it by longpressing.
To get your sdcard to ext3, you just need to turn on journaling. You can do this through adb while in the recovery (because you need the partition unmounted to do this).
Code:
adb reboot recovery
adb shell
mount system
e2fsk /dev/block/mmcblk0p2
tune2fs -j /dev/block/mmcblk0p2
reboot
Supposedly Android should auto-mount this as ext3 on boot (which you can check with the first command). At that point, I don't think it will matter what a2sd shows. As the writing of the journal (the big thing with ext3, since it helps minimize write errors on a bad shutdown) is done at the OS level, not the a2sd level.
Hi there,
Is there a way to make the add the internal SD card to the main memmory? So that there would not be an internal SD card anymore?
I do not mean swapping the moutpoints around so my External_SD becomes my primary and my internal my second....
I want to get rid of the internal one alltogether (adding it to main memory).
I figure that I'll have to format the storage in a certain way... would that do it?
Can someone tell me step by step what to do?
I do have CW-mod installed.
I did search the forum, but couldnt find anything conclusive. Just hints that it should be possible...
If there already is a thread where all this is explained, please point me to it, because I couldn't find it.
Thanks,
Pfeffa-rah
I don't think this is possible , never heard of someone who did it
I have no idea how to do that. My question is... why would you want to do that?
Having an internal_sd partition adds the benefit of having big app data (such as those in Gameloft games) sit in a very fast partition and still be called "sddata".
Also, it's mountable via PC so everything in there can still be backed up. So it's best of both worlds really.
This was discussed some time ago in this thread: http://forum.xda-developers.com/showthread.php?t=1013575
There were ideas on how to remount the cards at boot. I myself come to the conclusion that since more phones start to behave in this way, app developers will have to start dealing with it. It just sucks they are mostly slow on the uptake. My main problem was the Spotify cache location being hard coded so I resorted to hack the Spotify apk.
PS. salisbury_steak: What is it with people like you that every time someone has a question on how to do something, your immediate response is "But why would you want to do that?!".
sorech said:
PS. salisbury_steak: What is it with people like you that every time someone has a question on how to do something, your immediate response is "But why would you want to do that?!".
Click to expand...
Click to collapse
That was actually an honest question.
I wanted to understand why he wanted to do it. (i.e. What would be the advantages of it.) There was no supposed sarcasm in there.
how about the ability to install 5x more applications?
Having that stupid 5gb partition as sd card and the real sd card as a sub folder is retarded...
My 32GB class 10 cars is a lot faster than the internal one.
The internal 5gb memory is MUCH TOO SMALL!!! Most apps don't allow you to store data on the external card. If you like me and many others install some games that download aditional data + a nav app that downloads maps for europe + some streaming music app like wimp that can cache music for offline play then you are ****ed with LG's setup.
The setup CM7 uses solves the main problem but effectively wastes the 5gb by mounting it at emmc where like 0,0001% of apps are able to access it.
So adding those otherwise wasted 5gb to the main memory would be great. But i have not seen any solution to that yet :-(
Thank you Gensplejs for explaining that to them. I had no idea how to reply to that since it seemed so obvious to me.
This thread was ment to be a question about how to do it and not to discuss the usefullness of it. That is where I lost the way in other threads...
So, thanks for your replys all (realy).
But now, back On-Topic:
How would I do it?
Sent from my LG-P990 using XDA Premium App
Please don't blame me if you tried it and you screwed up your phone.. It's your choice...
Well, I don't know if this would work, but this is how I would do it (accepting the fact that I'd loose almost 2GB of /data's free space):
1. Format your internal sd card to the same file system as your /data partition is (ext3 or ext4)
2. Copy every file from /data 1:1 to your sdcard (cp -R /data/* /sdcard)
3. I don't know when and where the partitions are mounted (maybe init.rc??)...anyways change the target there and let /data point to the internal sd card partition (so it is ensured that it is mounted automatically to the new location)
4. Reboot and keep your fingers crossed
I think i figured how to do it in theory. First we need some free space at our microsd to cp /data. Then we should repartition with fdisk /dev/block/mmcblk0p8 and p9 into one partition and change vold.fstab to mount only externalsd at /sdcard as we do when we swap partitions. In theory it should work but i cant test it right now or make a script since ve gone vacations and i dont have a pc to restore in case of error
I agree.. certain apps wont store to sdcard.. its better to use the whole 8gb as phone storage, and use external sdcard as default sdcard.
Sent from my LG-P990 using XDA App
What ive found till now is that sd swapping is easy. You can do it by tweaking only vold.fstab. But repatriationing is a pain in the ass. Looks like lg has "faulty" partitions or something and to do it you must mesh up with with almost half partitions.
I had to rebuilt boot lgdrm recovery data and sdcard to make em half work. So it probably isnt worth the trouble. Also I think init.rc is built on the boot. So just remounting internal sd to /data wont work either.
sectors is not space
it says 7996, so thats 8GB
i saw it in hurry. the brain sometimes belives whats he want to belive
sorry
New to XDA
Hello everybody,
I'm new to android and i'm trying to find out how to solve the problem posted in this thread.
I see you've got the awnser but i don't know how to do this.
I've been searching google and XDA for ever but i just can't find the awnser.
Could you make a step by step howto or point out to a post how to do this.
I mean converting your external sd to ext4 and change the mounting points.
I'm a complete nood, i didn't get adb to work on my pc, ext4 recovery is not for the p990 2x.
I've read something abbout changing fstap for swapping te mounting points for sdcard and emmc, witch is also ok for me, but formating to ext4... wel i frankly don't know how to do this.
I'm quite stuk on this.
The only partitioning experience i've got is Gparted in Ubuntu or repartitioning in Windows 7.
Thans in andvance!
Greetz,
JMG
http://android.modaco.com/topic/347...-partitions/page__gopid__1821791#entry1821791
check this
you can expand data partition , but there is a limitation of 1.75gb
Thanks davjan
Thanks davjan,
As far i can see it's indeed not worth it.
I wil have to go on and try to find out how to change the filesystem to ext4 and swap the internal and external sd.
That way i get more usable space instead of a big datastorage witch cannot contain program data.
But thanks for the quick reply.
Jean Michel Gaar said:
Thanks davjan,
As far i can see it's indeed not worth it.
I wil have to go on and try to find out how to change the filesystem to ext4 and swap the internal and external sd.
That way i get more usable space instead of a big datastorage witch cannot contain program data.
But thanks for the quick reply.
Click to expand...
Click to collapse
what rom are you using? is your phone rooted?
swapping internal with internal sd is very easy
and most of the roms here on xda are ext4 , if you instal one of them they autoconvert to ext4
Jean Michel Gaar said:
Thanks davjan,
As far i can see it's indeed not worth it.
I wil have to go on and try to find out how to change the filesystem to ext4 and swap the internal and external sd.
That way i get more usable space instead of a big datastorage witch cannot contain program data.
But thanks for the quick reply.
Click to expand...
Click to collapse
I you read the link provided you'll see that it makes what you want: grow internal filesystem = lower SDcard usable space. The only thing is that it doesn't seem possible is to use the whole space: system limitation. 75Markus tried high /system and /data values and phone didn't work.
See in his Mediafire Folder, 'Nvflash + guide for changing Partitions:
http://www.mediafire.com/75markus
Ext4 is now common with custom ROMs (in fact all of them).
You should search in sd-ext partition system, which was designed to artificially expand filesystem on older phones using an 'ext' partition. I didn't heard anybody using this on O2X.
If you use CyanogenMod based ROMs, your external card will be mounted ad /sdcard by default.
Switching internal and external SD
Thanks guy's,
I'll check it out.
I've been using cyanogenmod 7.1 stable with vorkkernel 20110208.
But that gave me batterydrains while using maps and nextvid ate the same time (while i'm driving).
Now i'm trying MIUI 1.11.11 with latest swift extreme.
But MIUI is very buggy so i'm thinking of going back to CM.
The only thing is that my phone won't boot with the latest vorkkernel.
Does anyone out there know what causes 4EXT CWM and Amon Ra all (with custom tools) all to fail in regards to seeing a formatted cache partition on EXT-2.
I have DONE EVERYTHING I can possibly think of, from using Gpart in Ubuntu, to the phone itself. Many times in the past I have made it would just leave my 2 Gig cache partition empty because NOTHING works EVER!...
Did I miss something, can you even have 4 separate functional partitions with the Nexus 1 ?
The closest I have come to something really functional is with 4EXT, it seems to go through all the stages but when I check alignment I only get the first 2 partitions (fat-32 and EXT-1) EXT-2 says it is unformatted for some odd reason! This has been performed using a full card wipe on an external source. Even still everything is seems to go as planned until I check the card. With 4EXT I attempt to force a ext3 or 4 format and it restarts the recovery ! When I check A2SDGUI it says I only have 15 megabytes for cache.
I have used black rose and set it to 220/15/201 (dla5244), tried the latest versions of 4EXT and wasted many hours before posting...
CAN ANYONE HELP !!
Download SD Formatter from here, run the program and choose under Options:
FORMAT TYPE: FULL (OverWrite)
FORMAT SIZE ADJUSTMENT: ON
This will format your µSD (be sure to backup your important stuff). When finished, try to make an ext4 partition with 4EXT recovery. You only need one ext4 partition (so no 2nd) and no swap.
Thank you for the fast response but I have tried that. Except I want this phone to work optimally and I have figured everything else out so it is hard to settle for mediocrity. I mean I know that 1 SD-EXT partition works... Even 1 + fat32 and SWAP but I can NEVER have the phone identify the SD-EXT2 partition... no matter what... In partition magic (terrabyte bootit) and of course Gpart in Ubuntu all indicate that everything is great. Except the phone doesn't use the partition and like I was saying before the 4EXT shows it as unformatted after it's format. When I force a format on the partition the software reboots !?!... And if I leave it claiming it's unformatted even though we may think it is, QND's MIUI can only see 15 megabyte cache partition !
But then why not just go back to stock roms and one partition? To your point it's hard to step back and use something less inclined for performance when it should work ? no ?
I know I am a NOOB BUT I also know that it seems like no one out there can offer CLOSURE on the matter. like "ohh that's because the N1 cannot identify a EXT2 partition" or "ohh... that's your SD card's fault it isn't aligned right etc."
I mean I can see others have had this problem and gave up, I don't want to give up unless it is a limitation of the hardware (?sd card?)
Another way to look at it is although beautiful and helpful for most... 4EXT should be focused on getting that to work, I would think... To your point everyone is confused and shouldn't have more than 2 partitions ? Doesn't seem right to me.
Anyways if you have any other ideas OR anyone else can think of a solution lets do it I want to invest time into this and make it work !!
Sincerely! !
Why should you have more than 2 partitions on your µSD? 1 fat32 for your pictures and videos and stuff, and if you don't have enough space for your apps, 1 ext4 for A2SD (maximum 1GB).
Swap is not necessary and in fact slows your system down. A thread about swap is somewere to be found here.
And why the 2GB cache partition? You already have a 15MB cache partition on your phone.. 220/15/201.
You really don't need more than 2 partitions on your µSD.
?
I am willing to accept that you are right that it isn't needed. But I am not using A2SD, I am using XPART. According to the guides I am read, the best way is with 3 or 4 partitions (Swap being the option). The Cache partition on the other hand makes sense because even with titanium backup I can see my 60 or so apps are storing a couple hundred megs in cache. So this way a dedicated partition for processing things once instead of multiple times would provide the fastest solution. Being that the n1 is not the top performer anymore (still my fave though ), any extra speed should help when I am using my phone day to day.
The QND MIUI mod by jbbandos has the following about XPART :
"You can use it with one FAT32 and one ext4 partition, as A2SD, which seems to be the more stable setup, but the recommended setup for speed is one FAT32, one large ext4 (for your data partition), one smaller ext4 (cache), and a swap partition. I'm not that much of a fan of a swap partition, as I am always afraid it will wear out the SD card precociously, but most people report it working well, and I prefer the single ext4 for stability, but YMMV. "
you can read more here :
http://forum.xda-developers.com/showthread.php?t=1084726
.......
Anyways that is what I want, and I will invest the time to get it. I believe that 4EXT is primarily in development to perform this function. But I have a problem, with the results. I realize that it may not be necessary but I would like to know the WHY as to why this doesn't work.
AS ALWAYS thank you for you help none the less..
Never used XPART, I didn't know they recommend this. I never used apps to ext scripts longer than a few days.
This is because I'd rather install 10 crappy apps less, than having a slower system. Then again, if I would use an apps to ext script, I would definitely go for stability .
Unfortunately I don't know what you could do now..
I found my previous QND build with XPROT using blackrose was good for like 7 months !!! I just wanted to update and get it working properly. I would HIGHLY recommend it as you phone sees like 1 gig of internal mem so all apps that have widgets are useful and don't need to go to SD. In my opinion it was more stable than stock !!! Honestly, great tool.
OH yeah and it is also much faster I have found !
Has anyone increased the internal memory from 1.48GB ? This is very limiting since there is 25GB USB/SD card storage available for use. I do get low on space warnings these days therefore, trying to understand if this is something possible or not.
I am running CM10 and I researched and went down the path of various SD partition and finally soft bricking the tablet, thanks to WebOS for recovering
Like I mentioned I am trying to understand if this is a hardware limitation and I am sure the touchpad user community would love to take advantage of large external memory for apps.
Thanks,
~H
hjayana said:
Has anyone increased the internal memory from 1.48GB ? This is very limiting since there is 25GB USB/SD card storage available for use. I do get low on space warnings these days therefore, trying to understand if this is something possible or not.
I am running CM10 and I researched and went down the path of various SD partition and finally soft bricking the tablet, thanks to WebOS for recovering
Like I mentioned I am trying to understand if this is a hardware limitation and I am sure the touchpad user community would love to take advantage of large external memory for apps.
Thanks,
~H
Click to expand...
Click to collapse
Newer ROMs based on datamedia do not have this issue. I use http://forum.xda-developers.com/showthread.php?t=2450358 and it runs very well. To install the ROM, you have to resize the partitoins semi-manually using Tailor in Webos, but it's not too painful.
therealMazingerz said:
Newer ROMs based on datamedia do not have this issue. I use http://forum.xda-developers.com/showthread.php?t=2450358 and it runs very well. To install the ROM, you have to resize the partitoins semi-manually using Tailor in Webos, but it's not too painful.
Click to expand...
Click to collapse
Agree tailor is user friendly and all. Now, how much of the internal memory does this newer ROM give? and can you give us more info on the name and link.
Thanks,
h
hjayana said:
Agree tailor is user friendly and all. Now, how much of the internal memory does this newer ROM give? and can you give us more info on the name and link.
Thanks,
h
Click to expand...
Click to collapse
I posted the link, it's CM 10.2.
How much space is available to install applications depends on how you resize the partitions using Tailor. This info in on the post I linked:
Advised partition layout:
Quote:
system - 500mb
cache - 200mb
media - 400mb
data - [remaining space] (i.e. ~11.5gb for 16gb TouchPads)
Using that layout, there would be around 11.5G (on a 16G Touchpad) to install applications.
I am not an expert, and I installed that ROM a couple of mounths ago (I don't remember most details), so take this information with a grain of salt
Thanks for the response therealMazingerz, I was able to increase the internal memory to ~20GB using tailor, the 'memory check' failed couple of times, I uninstalled/installed android with newer mobot and I was able to 'check filesystem' and increase android data space.
I am 'still' using the CM10.1 since it does not have other quirks as in >CM10.2, while the dedicated people work on fixing it.
Stay warm!!!!!
juggling the limited touchpad memory is tricky but tailor partition is the easiest way