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I want to format my miniSD card and I can choose FAT or FAT32.
What is the difference between them and what is beter to use for the trinity?
Thanx a lo!
John
jjplayground said:
I want to format my miniSD card and I can choose FAT or FAT32.
What is the difference between them and what is beter to use for the trinity?
Thanx a lo!
John
Click to expand...
Click to collapse
I don't know the technical aspects, but personally I found FAT32 to be more reliable (and quicker).
The primary reason for creating the FAT32 system was to alleviate the 2GB limitation of the FAT system (or rather FAT16 as it is).
In addition to this, FAT32 does not have a Root Directory Region as FAT has, and therefore it does not have the (in practice) 512 limit for entries in the root directory.
Also FAT32 allows for more files to be stored on the system than FAT, in practice 268,435,437 vs. 65,517.
For a SD card I don't really see any reason that FAT32 should be superior to FAT, unless you run into the 512 or 65,517 limits.
There should be no difference in neither performance nor reliability between the two.
hi.
how about the choice of cluster syze when formating? is this important? in what way?
Hi,
I recently got myself a 16-gig micro-sd card on which I want 3 partitions:
1) 12gb (FAT32): Media
2) 2gb (ext2): Apps2SD
3) 2gb (ext2): Debian
I've been trying to make them with gparted and I can't create 2 ext partitions. Whenever I try to format 3, then 2 gets corrupted. Then I fomat 2 again and 3 gets corrupted.
Everything works OK with just 1 FAT and 1 ext partition. The problem comes when I create the two ext partitions.
Does anyone have an idea about what the issue is?
Thanks in advance.
No one? Has anybody managed to create a similar layout on their sd card? Anyone with two ext partitions?
I'd appreciate some info.
Is there a reason for ext2?
Have you tried ext3 / ext 4? Even if you don't want 3 or 4, might be good to try for troubleshooting purposes.
Any reason for two ext2 partitions?
If no one here knows, a great place guaranteed to have the answer is http://ubuntuforums.org
2gig for applications is WAY overkill, even 1gig is. Just use a ubuntu live cd, if you don't run it already, to format the card.
ext3 supports journalling, which I think may be harmfull to my sd card.
I don't really think the 2 gigs are the issue here. Any size will fail. I'll try a few more things tomorrow and post back.
Thanks for the replies.
BTW I do use Ubuntu as my main OS.
St.Jimmy! said:
ext3 supports journalling, which I think may be harmfull to my sd card.
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Click to collapse
Woah, what? Can you elaborate? I hadn't heard of that.
Hi all,
One question:
Can it be, that with some SD-cards the creation of an ext partition is not possible?
I've got a sandisc 32GB card in my HTC HD2.
I formatted it in an external reader under XP using 'card formatter' in fat32.
Then I used partition manager to create one big fat32 partition, cluster size 4096 an a small, 1GB ext4 partition, same cluster size. Both are set to primary, first is fat, second is ext.
It doesn't matter, if I choose ext2, 3 or 4, as soon as I insert the card in my phone, the ext partition is not seen by it...
Using Titanium Backup, the ext partition should show up...
Under XP, in partition manager, everything works out smooth and both partitions show up fine.
Thank you for your suggestions!
jollmo said:
Hi all,
One question:
Can it be, that with some SD-cards the creation of an ext partition is not possible?
I've got a sandisc 32GB card in my HTC HD2.
I formatted it in an external reader under XP using 'card formatter' in fat32.
Then I used partition manager to create one big fat32 partition, cluster size 4096 an a small, 1GB ext4 partition, same cluster size. Both are set to primary, first is fat, second is ext.
It doesn't matter, if I choose ext2, 3 or 4, as soon as I insert the card in my phone, the ext partition is not seen by it...
Using Titanium Backup, the ext partition should show up...
Under XP, in partition manager, everything works out smooth and both partitions show up fine.
Thank you for your suggestions!
Click to expand...
Click to collapse
what do you mean when you say ext partition is not seen by phone?
When you open titanium backup, in the lower part of the window, it shows:
System-ROM: 'size(free)'
Intern: 'size(free)'
SD-card: 'size(free)'
and then there should be ext?: 'size(free)'
but it doesn't show up...
jollmo said:
Hi all,
One question:
Can it be, that with some SD-cards the creation of an ext partition is not possible?
I've got a sandisc 32GB card in my HTC HD2.
I formatted it in an external reader under XP using 'card formatter' in fat32.
Then I used partition manager to create one big fat32 partition, cluster size 4096 an a small, 1GB ext4 partition, same cluster size. Both are set to primary, first is fat, second is ext.
It doesn't matter, if I choose ext2, 3 or 4, as soon as I insert the card in my phone, the ext partition is not seen by it...
Using Titanium Backup, the ext partition should show up...
Under XP, in partition manager, everything works out smooth and both partitions show up fine.
Thank you for your suggestions!
Click to expand...
Click to collapse
Format the SD-card using CWR (P.s. everything gets deleted on the SD-card)
in CWR, the card gets formattedd, but no ext partition comes up
I tried several times, but checking in my cardreader, there is no ext partition
I read and tried already so many tutorials and howtos from xda and other forums, that for now, I'm a bit confused...
Some of them say, the ext partition has to be the first, and others say, it has to be the second...
But all point out, both have to be primary and clustersize should be 4k...
So I start to think, maybe its because the card is too big?
All reports refer to cards smaller than 32GB...
what rom are you using ?
[OCT16] AmeriCanAndroid AOSP HD2 GB2.3.7 CM7 | bk2sdext [KERNEL:ACA823]
thats an SD build isnt it? i dont think the ext partition works on sd builds but i could be wrong
an ext partitoin is used on nand builds, what exactly are you needing the ext partion for?
no, its a NAND-build, runs on clk...
I was running it from SD for over half a year and switched to NAND-version mid september...
From that time on I tried to get the ext stuff running, by reading and trying, but now I decided to ask
Weird.. I stick my SD-card in a computer and remove all partitions leaving it blank. Then CWR-partition it. Has worked for me all the time..
Can you try with a smaller card??
For me its weird too, I briefly followed every tutorial I've seen so far, moving the ext partition from the beginning to the end, trying different cluster sizes...
Thats why I ask if it might be the size of the card, everything else is working fine.
I've got a 2GB card lying around somewhere I'll try to find it and see if that one works.
One thing, thats making it a pain in the a.. to try again and again is, that in the meantime I've got about 16GB of music on my card, which is taking some time to copy everything back
Ok, just to end this:
I managed, to get it to work.
I didn't change anything in my setup, but after downloading Link2SD from the market, my ext4 partition is recognised and working
It's still not recognised by TB or other skripts, but thats ok for me, as long as I can use it...
Hi,
I wonder if someone can help me, I've got WP7.5 install as a NAND installation, with Android 4.0.4 as a SD installation. Both work brilliantly, although I do have some slight problems.
Android won't detect an SD card installed, so I can't use some apps, that require an SD card to be present.
Does anyone know if there is a fix for this, surely I'm not the only person in this position.
Cheers
I'm guessing it's because your SD has been formatted specially by WP, and Android can't read this. Your FAT32 partition is probably too small for anything to be stored in it.
The Fat32 partition is 1.6Gb.
Is it worth making that bigger, or creating another FAT32 partition?
Cheers
Hmm, I'd guess that you wouldn't have any more than 200-300MB free on your SD as read by SD Android then. I don't know how much an SD Android build takes up but the data.img is at least 1GB of that. As for increasing the partiton/creating a new one, I don't actually think that's possible without losing your data is it?
Hi,
Thanks for your help.
I'm not too fussed about losing anything...
Here is what I have just tried without any success.
I have a 8Gb card partitioned like this.
1.*Gb
Primary, FAT32, (Android SD install)
2Gb
Primary, FAT32, (My hope would be that Android would see this as the SD card)
4Gb Other (WP 7 partition)
No luck unfortunately, any ideas?
Cheers
Are you sure you're using an 'unlockable' WP7.x ROM? If so, try formatting the storage card to normal and flash a Android build, see if it utilises the memory card like normal, if it does, then I would say that you're doing something wrong when setting it up.
Just double check each step of a tutorial (example: this one) twice and hopefully you'll only have to flash one more time.
Why do you have 2 fat 32 partitions ?...just use one fat 32 partition..in regular sd android....data image is used as internal memory and fat 32 part as sd card
I believe your second partition is not being recognised...make only one fat 32 partition you don't need two
Sent from my HTC HD2 using Tapatalk 2
So I have a Samsung Tab a6 7 T280 wifi and I've inserted a MicroSD card (128GB). I've done this with the stock os first and I just got the message card can be removed safely. and it wouldn't let me mount it.
Now I've installed the Tinker V5.1 Stock Rom over it and it still happens. (wanted a faster os on it).
I can reformat the card with twrp to be ext4 or exFAT and it doesn't change a single thing. if I insert the sd card I get a quick preparing card and then instantly the message card can be safely removed. clicking on mount sd card in storage from settings doesn't do anything except prompt same message.
I'd try a different sdcard.
Okay, so I hope I can help, I have the SM-T280, I do not use Tinker ROM, instead I debloated my stock ROM and use an SPA kernel by @_mone. If you're trying to extend storage to your tablet, you'll need to use a PC to partition the SD card two PRIMARY partitions. I used on Windows MiniTool Partition Wizard (free), and I used a FAT32 partition and an ext2 partition. With the stock ROM/kernel I had problems using ext4 or extFAT which didn't make sense to me but it is what it is, and I used the app Apps2SD to handle all the work.
The main thing, you need to make sure your SD card has TWO (2) PRIMARY partitions.
Good luck.
zenful said:
Okay, so I hope I can help, I have the SM-T280, I do not use Tinker ROM, instead I debloated my stock ROM and use an SPA kernel by @_mone. If you're trying to extend storage to your tablet, you'll need to use a PC to partition the SD card two PRIMARY partitions. I used on Windows MiniTool Partition Wizard (free), and I used a FAT32 partition and an ext2 partition. With the stock ROM/kernel I had problems using ext4 or extFAT which didn't make sense to me but it is what it is, and I used the app Apps2SD to handle all the work.
The main thing, you need to make sure your SD card has TWO (2) PRIMARY partitions.
Good luck.
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Click to collapse
What about the Sizes? As in one partition 60 GB the other one also 60 GB ? Or the fat32 partition 1 GB and the ext2 the rest?
Panslothda said:
What about the Sizes? As in one partition 60 GB the other one also 60 GB ? Or the fat32 partition 1 GB and the ext2 the rest?
Click to expand...
Click to collapse
FAT32 is not for large capacity storage. Use exFat. There isn't much point in having such a large ext2 partition. It's incompatible with media transfer protocols unless you use a Linux system.
This device fully supports exFAT. I use a 64gb sdcard no issues.
ashyx said:
FAT32 is not for large capacity storage. Use exFat. There isn't much point in having such a large ext2 partition. It's incompatible with media transfer protocols unless you use a Linux system.
This device fully supports exFAT. I use a 64gb sdcard no issues.
Click to expand...
Click to collapse
Well my current one is exfat formatted. works perfectly fine on PC only thing is its 128 GB.... I mean is that maybe the issue? that its to large?
Panslothda said:
Well my current one is exfat formatted. works perfectly fine on PC only thing is its 128 GB.... I mean is that maybe the issue? that its to large?
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Click to collapse
I wouldn't think so, I'm sure it supports 128gb cards.
Just partition it into to halves. First partition exfat. Leave the other unformatted and see what happens.
ashyx said:
I wouldn't think so, I'm sure it supports 128gb cards.
Just partition it into to halves. First partition exfat. Leave the other unformatted and see what happens.
Click to expand...
Click to collapse
partitioned into a 40 GB exFAT partition and left rest unpartitioned. Didn't change anything. if I pop it in the tablet I get a short preparing sd card notification then immediately an SD card safe to remove notification...
I'm really confused by this. The tablet is new so I doubt that it's broken but I don't know. Do you know if there's a way to check any kind of logs on Android like dmesg on Linux as an example to see what happens with the sd card?
Panslothda said:
partitioned into a 40 GB exFAT partition and left rest unpartitioned. Didn't change anything. if I pop it in the tablet I get a short preparing sd card notification then immediately an SD card safe to remove notification...
I'm really confused by this. The tablet is new so I doubt that it's broken but I don't know. Do you know if there's a way to check any kind of logs on Android like dmesg on Linux as an example to see what happens with the sd card?
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Click to collapse
It's best just try out another card to rule out the card.
ashyx said:
It's best just try out another card to rule out the card.
Click to expand...
Click to collapse
Welp gotta buy one first then :/
Panslothda said:
Welp gotta buy one first then :/
Click to expand...
Click to collapse
Nobody can lend one for a few minutes? Or try the card in someone else device?
Panslothda said:
So I have a Samsung Tab a6 7 T280 wifi and I've inserted a MicroSD card (128GB). I've done this with the stock os first and I just got the message card can be removed safely. and it wouldn't let me mount it.
Now I've installed the Tinker V5.1 Stock Rom over it and it still happens. (wanted a faster os on it).
I can reformat the card with twrp to be ext4 or exFAT and it doesn't change a single thing. if I insert the sd card I get a quick preparing card and then instantly the message card can be safely removed. clicking on mount sd card in storage from settings doesn't do anything except prompt same message.
Click to expand...
Click to collapse
According to Samsung, the T280 will support a 256gb SD card BUT I know from experience that SD cards over 32gb can be VERY touchy. If you use a PC to remove all of the partition and then let the tablet try to do its own formatting and it still doesn't work, I'd say you have an incompatible SD card. That doesn't mean the card is bad but that it just won't work in the T280.
As an example, a Samsung EVO+ card (which can be found on eBay for $30) will probably work while a "no name" card from China, probably won't.
lewmur said:
According to Samsung, the T280 will support a 256gb SD card BUT I know from experience that SD cards over 32gb can be VERY touchy. If you use a PC to remove all of the partition and then let the tablet try to do its own formatting and it still doesn't work, I'd say you have an incompatible SD card. That doesn't mean the card is bad but that it just won't work in the T280.
As an example, a Samsung EVO+ card (which can be found on eBay for $30) will probably work while a "no name" card from China, probably won't.
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Click to collapse
I always use Samsung EVO cards and they always work perfectly. Price per GB they are very reasonable too.
Scandisk ultra i find ok no matter what size
Sent from my SM-T585 using XDA-Developers Legacy app