Question Create different partitions with encryption for different users - Samsung Galaxy Tab S8

Hello there, I've recently bought a Samsung Galaxy Tab S8 and I plan to share it with my family.
I've also bought a SD card with it, but it seems I'm missing a really important feature: any user can have access to the same SD card single partition. So, if I take a picture with User #1, and I store it in SD's DCIM folder, User #2 would still see it, since it appears that the SD card access is free for everyone.
I come from a Lenovo Tab M1 that supported multi partitions for SD card, so that each time every user had access to its files only.
Is it possible to have such a feature on my S8 Tab too? I've already set SD encryption but it only works if I use the SD card by another device. Am I missing something?

Related

[Q] Moving apps to SD card - Question re Overcome ROM

Hi
I have a Galaxy Tab running the Overcome Rom v1.6.0
Under Settings / Applications / Manage Applications it is possible to move apps to the SD card. My questions (noob) are:
1 - is it ok to move all apps the SD card?
2- is it possible to move all the apps in one go and not have do it one by one?
Happy_Go_Lucky said:
Hi
I have a Galaxy Tab running the Overcome Rom v1.6.0
Under Settings / Applications / Manage Applications it is possible to move apps to the SD card. My questions (noob) are:
1 - is it ok to move all apps the SD card?
2- is it possible to move all the apps in one go and not have do it one by one?
Click to expand...
Click to collapse
All your apps will be installed to the 2GB partition on the internal SD card. No real need to move them to other partition or to an external card. This may be needed on other devices that do not have a internal SD card or ones that have a small nand chip etc but not really needed on the Tab.
Unless you have one of teh tabs that didnt come with 16GB of internal memory, then ofcourse nothing I said applies.
Would it make a difference in terms of speed / performance if I kept all 3rd party apps on the external sd card. The tab is 16gb.
Happy_Go_Lucky said:
Would it make a difference in terms of speed / performance if I kept all 3rd party apps on the external sd card. The tab is 16gb.
Click to expand...
Click to collapse
Not really no. They are both SD cards. Remember the tab has a 16GB sd card installed internally, hidden under the casing, its not like phones where they have onboard memory in nand, with exception to windows phones, they too also have internal SD cards.
I suppose it depends on what brand/class they are. I'm sure somebody more technically minded about this particular subject will be able to answer better.
I personally keep all my files like apk's and documents etc on my external and reserve my internal for installed data, music, videos etc.
My situation is I have 8GB space on the internal. My music file which I am about to Sync is 8.5GB. I was looking at also putting my music on the external sd. Is there a quality difference (you have yours on the internal).
Also (hope you can help me on this one). When using Kies you have the option to add your music files to the Kies Library. Is\this simply going to copy my entire music library (8gb) to a new samsung folder on the pc and hence duplicate my music + waste space? Or am I missing something?

[Q] What to do before replacing my Ext. MicroSD card in GNote

Good day,
I have a question about replacing my external microSD card on my GNote:
1) Can I simply swap out the SD card with a new one and reboot the phone?
Other than copying off my photos and music folders on the current external SD card, what else should I be looking to move over onto the new SD card once I insert it?
I am rooted on XLA1 ROM
I have not moved any downloaded Apps to the ext. SD card
I use the built in email and messaging Apps, I do not even know if\how to tell the mail app to store mail on the external card or if it does this automatically if it detects the presence of one. (Kind of a sub question I guess)
I use Dialer one (I do not think it matters but....)
I have CWM backups to external SD as well as Titanium Pro scheduled batch backups. have not looked yet to see where these are stored and what the folders are named/
The current SD card came out of my HTC HD2 where I had done a few android builds running off SD and therefore see plenty of android created folders that I am sure are as a result of my attempts to try out Android when I was a Windows Mobile user on the HD 2.
Thanks in advance for any answers giving to this matter.
Claude H.
You shouldn't have to do anything. Most programs, if they don't find the file structure they're looking for in the place they're looking, will recreate it.
Thanks for the answer.

Is it possible to move Apps to SD card ?

LG Optimus 4X HD
At least on my fone, this is a problem.
There seems to be no way to move the Apps to the Phone SD card or External SD card.
I used several apps ( App2SD etct etc ) from Google Play.
They all show the installed Apps ON PHONE.
And offer the option to select which apps you want to move over to the Phone SD card.
But when I select the Apps to move , the option that comes up only shows two choices: FORCE STOP or UNINSTALL.
Nothing else.
Do these so called new power smartphones prevent any installed apps to be
transferred to the Phone SD card or External SD card ?
I heard from a friend that even some latest Samsung phones have similar limitation features.
Probably there is some technical reason behind this. Perhaps rooting is needed ?
Appreciate if anyone here could enlighten.
Thx.
Actually, app are installed on the sdcard directly. The sdcard is actually the phone memory. Perhaps you want to install app on your micro sd card or the external_sd. You'll need Link 2 SD for that one. Moving apps to sdcard option was removed in ICS.
http://www.chainfire.eu/articles/113/Is_Google_blocking_apps_writing_to_SD_cards_/
Agustus said:
LG Optimus 4X HD
At least on my fone, this is a problem.
There seems to be no way to move the Apps to the Phone SD card or External SD card.
I used several apps ( App2SD etct etc ) from Google Play.
They all show the installed Apps ON PHONE.
And offer the option to select which apps you want to move over to the Phone SD card.
But when I select the Apps to move , the option that comes up only shows two choices: FORCE STOP or UNINSTALL.
Nothing else.
Do these so called new power smartphones prevent any installed apps to be
transferred to the Phone SD card or External SD card ?
I heard from a friend that even some latest Samsung phones have similar limitation features.
Probably there is some technical reason behind this. Perhaps rooting is needed ?
Appreciate if anyone here could enlighten.
Thx.
Click to expand...
Click to collapse
The LG 4X has a different memory structure than other Android devices I have used so far.
Normally an android device's integrated storage is partitioned like this:
-You get a program storage (1-2GBs if you are lucky)
-You get what's left of the integrated storage as SD card (minus the OS used space)
-You can add an external SD card which will be your... ermm external SD card
-In OTG enabled devices you can also add a USB storage
Now the difference in our LG 4X is that the manufacturer has opted to combine the program storage and internal storage into one storage location, thus saving us the trouble of moving apps to SD all the time and so giving as 12GBs of storage so we can use however we want.
In my Galaxy S with android 2.3.3, I can also move apps to external SD, but afaik this is not supported in ICS and JB, so yeah I concur your irony above, rergarding the super wow smartphones. Still I am sure there were various reasons for Google to not support it (and maybe moving to external SD was Samsung proprietary operation-not clear about that still)
psolord said:
The LG 4X has a different memory structure than other Android devices I have used so far.
Normally an android device's integrated storage is partitioned like this:
-You get a program storage (1-2GBs if you are lucky)
-You get what's left of the integrated storage as SD card (minus the OS used space)
-You can add an external SD card which will be your... ermm external SD card
-In OTG enabled devices you can also add a USB storage
Now the difference in our LG 4X is that the manufacturer has opted to combine the program storage and internal storage into one storage location, thus saving us the trouble of moving apps to SD all the time and so giving as 12GBs of storage so we can use however we want.
In my Galaxy S with android 2.3.3, I can also move apps to external SD, but afaik this is not supported in ICS and JB, so yeah I concur your irony above, rergarding the super wow smartphones. Still I am sure there were various reasons for Google to not support it (and maybe moving to external SD was Samsung proprietary operation-not clear about that still)
Click to expand...
Click to collapse
App2SD was introduced in Android 2.2 (FroYo). However, different developer solutions were already around at that time (a2sd+, link2sd etc.), but they required an ext3/ext4 partition, while the build-in app2sd would move them to a folder (.android-secure) on the FAT32 partition. The app2sd feature was eagerly awaited because of the limited storage devices had back then (the Nexus One had 512MB internal memory, of which 447 were usable and ~150 MB were used for /system). Now with bigger internal storage and the different internal structure which is used since ICS (and which is also the reason newer devices use MTP), moving apps to external SD is no longer officially supported. So you'll just have to use a developer's way again, in our case it's Directory Bind. I haven't used it yet since I still have some free space left, but it was reported to work properly. Afaik it just moves the files to external SD and then links the folders. Root should be required, but I don't know exactly. Personally i'd root nevertheless, as it gives you some advantages (Ti Backup, Ad-Free etc).
psolord said:
The LG 4X has a different memory structure than other Android devices I have used so far.
Normally an android device's integrated storage is partitioned like this:
-You get a program storage (1-2GBs if you are lucky)
-You get what's left of the integrated storage as SD card (minus the OS used space)
-You can add an external SD card which will be your... ermm external SD card
-In OTG enabled devices you can also add a USB storage
Now the difference in our LG 4X is that the manufacturer has opted to combine the program storage and internal storage into one storage location, thus saving us the trouble of moving apps to SD all the time and so giving as 12GBs of storage so we can use however we want.
In my Galaxy S with android 2.3.3, I can also move apps to external SD, but afaik this is not supported in ICS and JB, so yeah I concur your irony above, rergarding the super wow smartphones. Still I am sure there were various reasons for Google to not support it (and maybe moving to external SD was Samsung proprietary operation-not clear about that still)
Click to expand...
Click to collapse
Regarding OTG enable devices, I cannot understand why LG 4X doesn't support the OTG feature, it should be important to support it in order to make this smartphone a wonderful replacement of a computer (we may use external usb hard-disk or even external usb DVD/BR-writer).
Regarding internal/external sd card, if I use the command line "mount" inside a terminal, I see two lines including "/mnt/sdcard" and "/mnt/sdcard/external_sd" parameters. My question is: theoretically is it possible to swap the two a/m lines, so to mount "/mnt/sdcard" as external (the real external SD card) and "/mnt/sdcard/external_sd" as internal storage? If possible, how to do it? Root grants are enough to do it, or we need more to do it?

[Q] SDXC Support

Hello,
I'm wondering if the Galaxy S III Mini supports SDXC, and then if not would it be possible for it to be added into a ROM? I remember when the migration happened to SDHC custom roms were being released to allow original SD cards to use the larger SDHC cards.
Another question is, as Samsung seemed to have removed the ability to move data onto the SD card, I'm going to have to go about it the difficult way. I've looked into to Link2SD (I wonder if the Galaxy Mini supports ext2 & ext 3) but I'm not sure it's the right choice and I don't want to go through the hassle of changing partitions on my SD card. The phone is rooted and I can modify the paritions if needed, but I want to be sure that it will work.
So my questions are:
Does the Galaxy S 3 Mini support SDXC? If not can it be added with a custom rom?
Do most roms contain support for ext2 and ext3?
Finally, what is the best app to use to transfer my applications onto the SD card.
Any advice will be much appreciated
EDIT: I forgot to ask but does the S3 Mini support microSD cards with UHS speeds?

S5 SD Swap/ mount Question

Hi
I have just jumped from iPhone to Samsung S5 and was wondering if there is a simple way to swap the internal memory with an external SD card? I have an android gaming tablet with a custom rom which does this automatically, making the OS install, download and do everything onto the external card.
I saw a post here http://forum.xda-developers.com/showthread.php?t=1377628 which talks about modding a system file will that do what i want? currently after installing TomTom and several map packs i now only have a few GB left of 16
Ps.. I have done the SDFix already to enable writing to the SD but TomTom requires the maps to be in the Root folder so you cant " move to SD " it only moves the program. I have S5 with KitKat 4.4.2 i believe.
Anyhelp apreciated.
82 views and no reply, is it because it can no longer be done?
I'm by no means an expert, but KitKat has severely limited this capability, apparently.
I'm betting that you would need a custom boot-loader in order to fully host the OS form the SD card.
Depending upon which specific S5 variant you have you'll have different options to mitigate this. Some of the big USA carriers (notably AT&T) are shipping with locked boot-loaders, which prevents fully customizing the ROM / OS load. From what I gather, but have not attempted, not even SafeStrap is currently capable of retargeting the system to the SD card.
Depending on the app, you may be able to (on a rooted phone) make a soft-link on the filesystem and redirect that application's data to the SD card. I'd think that the more safe way to go, but again I have not tried it.
Keep in mind, also, that hosting the OS from the SD card would likely impact performance heavily. In my testing the internal flash memory has at least 2x to 3x the performance of the fastest microSD I could find to test with, and more like 10x the speed of a cheap SD card (my phone is the US AT&T variant). This has huge ramifications for much-accessed / randomly-accessed content, and by derivation probably impacts how well the phone feels in operation.
I see, i thought it would be easy like my gaming tablet, the 'system' still runs on the devices internal memory but the 'storage' runs from the SDCard.
My phone is a UK/ EU model and is not locked to any provider as bought outright. Is it possible to flash it with a stock rom that does allow the swapping of the SD, one slightly older than 4.4.2 which it is currently on?
I filled up the small 16gb within 2 hours of having the phone so having external memory is a must really. TomTom is taking up alot of the room and i dont think you can move the DATA to the SD card as it reads from root of device.
any help appreciated.
Any update in this?

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