[Q] Help: External SD unreadable after flashing ROMs - Captivate Q&A, Help & Troubleshooting

Hi,
What would be making the files on my external SD invisible to my phone?
When I was running stock 2.1 JH7 on my Captivate I was able to access files on my 16gb class 2 external SD card just fine.
However after flashing Cognition 3.04 and then Perception I am unable to see any of the files on the external SD card. When I browse to /sdcard/sd the file browser reports accurate memory stats (3.67 gb used) but say no files. Via USB I'm able to mount both internal and external SD cards and perform file management via my PC (such as copying files from one internal to external and vice versa).
I have removed the external SD card from my phone and formatted it fat32 and copied files back onto it and reinstalled in my phone and still can't see any files on the card from the phone.
Shot in the dark... Is there an issue with the lagfix file system and the fat32 on the external sd?
Any suggestions would be appreciated!
thanks,
Fred

check /sd/external_sd

This happened to me just once in my last 50 flashes....only thing I did was reflash and it started working. Sorry this doesn't help since you already flashed again and still have the issue.

psyopstt said:
check /sd/external_sd
Click to expand...
Click to collapse
That led me to the right spot. On my phone my external SD is at:
/sdcard/external_sd
Where /sdcard/ is the internal SD card
What then is /sdcard/sd ? This is where I looked before for external SD data... does the path change with various ROMs?

think they changed the mount points of the external sd from 2.1 and 2.2 around a bit
in 2.1 the external is /sdcard/sd
in 2.2 its /sdcard/external_sd

psyopstt said:
think they changed the mount points of the external sd from 2.1 and 2.2 around a bit
in 2.1 the external is /sdcard/sd
in 2.2 its /sdcard/external_sd
Click to expand...
Click to collapse
Thanks again.
/sdcard/sd is still on my system but I can't see any files. Oh well.

yeah you will still see a /sdcard/sd folder in your explorer but that /sdcard/sd is not pointing to your external sd card after the froyo update. My guess is that they made a directory /sdcard/sd for backwards compatibility with older apps.

Related

What happens to internal SD ?

What happens to internal SD when you insert an external SD card?
Why does it disappear?
When I go into 'My Files' after I've inserted an external SD card, I can now see the files on my SD card, but my internal SD is now missing!
Mysteriously though, when I remove my external SD card, my internal SD files become visible again in 'My Files' !!!
Yes, both internal and external SD are mounted in Settings.
TIA
in File Manager app
/sdcard/ = internal SD
/sdcard/sd/ = external SD
AllGamer said:
in File Manager app
/sdcard/ = internal SD
/sdcard/sd/ = external SD
Click to expand...
Click to collapse
Maybe our phones are a little different?
When I don't have my external SD in the phone and I go into 'My Files'
I see at the top /sdcard/
and below that I see:
albumbthumbs
bluetooth
DCIM
Android
SD (internal)
When I have my external SD in the phone and I go into 'My Files'
I see at the top /sdcard/
and below that I see:
albumbthumbs
bluetooth
DCIM
Android
SD folder with a white symbol (indicating external SD card)
what if you navigate to /sdcard/sd/
what does it shows?
AllGamer said:
what if you navigate to /sdcard/sd/
what does it shows?
Click to expand...
Click to collapse
It shows all of the folders on my SD external card (nothing at all about internal SD card).
not sure what's the cause of the problem, but that is one weird bug indeed.
So when you go to /sdcard/ without an external SD card you find all the files on your internal SD card (albumbthumbs, bluetooth, DCIM, etc.)
And when you go to /sdcard/sd/ with an external SD card you find all the files on your external SD card? I don't see a problem.
You said without the external card you see "SD (internal)" in My Files, does it actually say internal or are you assuming? That should actually be external.
ShezUK said:
So when you go to /sdcard/ without an external SD card you find all the files on your internal SD card (albumbthumbs, bluetooth, DCIM, etc.)
Click to expand...
Click to collapse
Well let's first make an important distinction here.
There appears to be an internal SD card section that is *separate* from another part of the phone's memory.
So *without* the external card in the phone I have the following at /sdcard/
-bluetooth
-albumthumbs
-sd (internal) (with a bunch of test files that I placed here)
-DCIM
-Android
You seem to be lumping all of the files that are not on the external SD card as 'sd internal'. This is not the case!
Now, when I place the external SD card back in the phone and go back to /sdcard/, this is what I see:
-bluetooth
-albumthumbs
-DCIM
-Android
-sd (white marker external, with all of its subfolders and files)
And when you go to /sdcard/sd/ with an external SD card you find all the files on your external SD card? I don't see a problem.
Click to expand...
Click to collapse
Correct. See above, there is a problem. My SD internal is now gone (with the test files that I placed there).
You said without the external card you see "SD (internal)" in My Files, does it actually say internal or are you assuming? That should actually be external.
Click to expand...
Click to collapse
It simply says 'sd'. I know for a fact that it is 'sd internal' because of the test files that I placed there, and because there is no little white icon next to the sd folder.
When I tap on this sd icon I see the test files and I don't see any of my 'SD external' folders/files.
i was always under the impression that the the place where the
-bluetooth
-albumthumbs
-DCIM
-Android
folders IS the internal SD card and the SD card folder shown in there is the external?
I'm assuming i've been incorrect all this time then?
makamiso said:
i was always under the impression that the the place where the
-bluetooth
-albumthumbs
-DCIM
-Android
folders IS the internal SD card and the SD card folder shown in there is the external?
I'm assuming i've been incorrect all this time then?
Click to expand...
Click to collapse
Yes by all indications you have been incorrect.
Let's put it this way. If someone paid an Android OS programmer to develop the most confusing way to set up the SD/file system on this phone, they couldn't have come up with something more complicated than what we have.
I just tried out some new experiments, but before I get into them, I notice in your example above you have left out the 'sd folder' under /sdcard/. Is this because you can't see it listed with the other folders listed above?
How big is your internal memory and is your internal SD card mounted?
Here's my latest experiments:
I went into settings/sd card and phone storage/ and Unmounted my External sd card.
Then I went into 'My Files' and this was the list under /sdcard/
-00001.vcf (a backup of my phone contacts)
/bluetooth
/albumthumbs
/sd (in here are some of my test files)
/DCIM
/Android
I couldn't see my external SD card because I unmounted it, but I COULD see my internal /sd folder now (mentioned above).
Next I went back to settings/sd card and phone storage/ and Unmounted my Internal SD card. It's Interesting to note that the message on the front notification panel said "Internal SD card safe to remove; The internal SD card can now be safely removed" !!!! Yeah right!
Next we go into My Files and it says "Your phone does not have a SD card inserted. So even though I believe the internal SD section is separate from the other phone storage memory (DCIM, Android etc.) they are still tied together so that when you Unmount the 'internal SD card' you are unmounting both of them at the same time.
Next I went back to settings/sd card and phone storage/ and Mounted my External sd card and left my Internal SD unmounted.
But before I could do that I had to physically remove the SD card from the phone and re-insert it! The phone will not allow you to Mount the external SD card unless you pull it from the machine (unlike the internal SD card).
Or should I say I tried to Mount my external SD card. Get this!!!
After I removed and then re-inserted the card and went back to the home screen there was a message on the front notification panel that said "Can not mount External SD card; Mount point absent or incorrect. Please unplug USB".
!!! Holy cow. USB! I haven't been able to get my USB to connect to my computer. What's the deal now??? There is nothing plugged into the USB!!!
Back to "My Files'. "Your phone does not have a SD card inserted" Yeah right.
Back to settings, sd card and phone storage/ and Mounted my internal SD card.
Guess what happened on this same screen when I mounted my internal SD?
Yes the Internal SD card said mounted, but what about the External SD card?
It was now mounted too!!!
OK back to 'My Files'. What do you predict will show? I know what I'm betting on.
You guessed it. Back to square one. Only the External SD card and its files are showing:
/albumthumbs
-00001.vcf (another backup of my phone contacts)
/bluetooth
/DCIM
/Android
/sd (with WHITE icon, and all of my subfolders and files inside)
Now you go figure this one out!
The folders layout on sgs makes PERFECT sense. Before the sgs there was no other phone that had built in storage of 8-16gigs so a external card would be named /sd card/ and apps where written to expect that folder if they ever needed to access external cards. Now along comes sgs with its built in mem, rather screw up all the apps out already they was smart enough just to do a soft folder link from /dev/whateverhardware/ to /sd card/sd/ and save everyone trouble. So if you dont have a card inside probe you are actualy viewing a folder called sd but when system sees the external card the folder turns into the ext card and links it while the original sd folder goes hiding. Your basic linux file handling knowledge would have told you. Simple
Sent from my GT-I9000 using XDA App
ickyboo said:
... Now along comes sgs with its built in mem, rather screw up all the apps out already they was smart enough just to do a soft folder link from /dev/whateverhardware/ to /sd card/sd/ and save everyone trouble. So if you dont have a card inside probe you are actualy viewing a folder called sd but when system sees the external card the folder turns into the ext card and links it while the original sd folder goes hiding. Your basic linux file handling knowledge would have told you. Simple
Click to expand...
Click to collapse
You obviously have a lot more experience with this OS than I do and I think you are pretty close to on the money. There's just one or two things I still don't understand though.
For fun and to see if I could get to the heart of this, I re-named the sd folder (when I didn't have my external Sd card inserted) to 'sd-internal'.
And soon after that (not immediately), and new folder popped up on its own, called 'sd'. Interesting.
Then later when I re-inserted my external sd card, I could now (for the first time) see the sd-internal folder (with my test files inside) BUT.... the new 'sd' folder was again hidden!
So I still don't quite understand what's happening.
Also, when you go into Phone/SD card storage you see the sizes of internal SD, external SD and phone memory. For me it's approx. internal-6G, external-8G, phone-2G.
So please, besides explaining why the SD internal comes and goes, can you explain what is considered 'internal SD' (the 6G of space) and where this storage space is? Is it ANDROID + DCIM + other + SD, or is it just 'SD' or ???
TIA
well when you're doing an update.zip, people say put it on the root of your internal sd card. Which is the screen you go into when going into astro or my files. I mean that whole directory is called /sdcard, that IS your internal SD card.
I have no damn idea what the SD folder is before you put an actual external sd card in as that folder then has that little white sd card icon on it indicating that its the external card. I believe the folder beforehand is just a placeholder or something similar. Basically when you want to put stuff on your internal, you put it in your main folder where stuff like the "Download" folder and alike is. At least thats what i do.
makamiso said:
well when you're doing an update.zip, people say put it on the root of your internal sd card. Which is the screen you go into when going into astro or my files. I mean that whole directory is called /sdcard, that IS your internal SD card.
I have no damn idea what the SD folder is before you put an actual external sd card in as that folder then has that little white sd card icon on it indicating that its the external card. I believe the folder beforehand is just a placeholder or something similar. Basically when you want to put stuff on your internal, you put it in your main folder where stuff like the "Download" folder and alike is. At least thats what i do.
Click to expand...
Click to collapse
Makamiso I believe you've got it!
After much deliberation I believe we have solved the Internal SD card puzzle/mystery.
Here's how I see it.
As you said, that SD folder that you see inside the /sdcard/ is simply a placeholder, nothing more (actually it is a little more).
That was my mistake!
When I first saw it, I thought IT was the entire Internal SD card.
So when I had some files that I wanted to transfer to the phone that's the place I logically thought I should place them in!
It ALLOWED me to place files inside it! Therefore it's not simply a placeholder.
And when I inserted my external SD card into the phone, the 'SD' placeholder folder turned into the external SD folder (the only difference was the white icon next to it).
BUT, the files that I had placed into the 'placeholder' SD folder were gone!
Couldn't access them.
Later I renamed the 'sd' folder to sd-internal (I know it's a bad choice of name now) and when I did this a new sd folder was created automatically (the new placeholder).
NOW when I had my external SD card inserted, I could access the files in the 'sd-internal' folder.
So to summarize;
-the /sdcard/ IS the Internal SD card.
-the sd folder is a dummy/placeholder folder used simply to confuse users like us.
-when you insert an external sd card, the sd folder becomes a real folder (and has a white icon next to it).
-DON'T be tricked like me and place any files inside the SD folder (when you don't have an external card in the phone!!!)
*This last paragraph should become a sticky for new users!
I really have no idea how to fix this.
I have the EXACT problem.

[Q] So, where is my external sd card in folders?

So, where is my external sd card in folder structure? I have these folders, in the list showing when connected by USB and looking at the root level (shows as E:\ on my computer):
external_sd
sd (shows as a 'hidden' file/folder)
Is one of these actually the external sd card mount point (4GB)? And how do you see what is the remaining space on the card while in this view--not looking at it on the phone?
external_sd is the external card.
Which rom are you running?
My external card shows up as another drive when I connect via USB and click on Mass Storage on the phone and mount it. It is not a folder, but a physical drive with its own drive letter.
sd was used in 2.1
external_sd was used from 2.2 up
they are linked shortcuts that work within the android system, but dont work when unmounted to windows as the external sd will show up as another drive.
TRusselo said:
sd was used in 2.1
external_sd was used from 2.2 up
they are linked shortcuts that work within the android system, but dont work when unmounted to windows as the external sd will show up as another drive.
Click to expand...
Click to collapse
Very informative. Thanks.

[Q] /mnt/emmc Instead of External SDCard?

Hey everyone,
So I was having issues with SD Cards earlier but I reflashed a different kernel and then went to Nightly build #28 of CM7 and everything seems to be alright.
My only issue is my External SD card is mounting to /mnt/emmc/ instead of /sdcard (or wherever its supposed to go) and that is giving me trouble with apps that require SDCard, as they think I dont have one.
For example, my camera app wont let me save pictures because "I dont have an SD Card", same with TapTap Revenge 4 etc.
How can I mount my external into /mnt/sdcard/ or wherever it should be? :|
Thanks.
If i remember well, this is the new way the external sdcard is and will be mounted. I have it that way too and never got problem. Can't you save on the internal SD ?
chadouming said:
If i remember well, this is the new way the external sdcard is and will be mounted. I have it that way too and never got problem. Can't you save on the internal SD ?
Click to expand...
Click to collapse
Idk, I was just having problems with my SD Cards, so I'm not really sure.
It says
SD Card : unavailable
Internal 1.78gb / 1.87 gb (Its supposed to be 16gb?)
Additional Storage : /mnt/emmc
5.44gb / 5.55gb (partitioned in recovery.. its an 8gb)
and whenever I try to download anything it says I dont have an SD Card. :\

Downloads not saving to SD card..

everytime i download a file or anything from the web, instead of creating a download folder in the root of the SD card, it created one under the Internal Storage....how can i make the SD card to be my Default storage?
SDcard is internal, SDcard-ext is the external card. Haven't seen anyway to default downloads to the external card.
there has to be a way to make the Micro SD card to be the default for downloads and what not. All my other phones have created subfolders under the MicroSD card.
I do not want to use my internal 8gb to save PDF files when i download them from the internet. I want to use my 32GB MicroSD card like it does on other phones...
This has been a NIGHTMARE. I just realized sdcard is internal and sdcard-ext is my actual SD Card. I just assumed sdcard was my flash memory card as this was the case with my Droid X. I changed ES File to the ext location as my default, and my browser's DL section to the ext location as well as Titanium backup. I can't figure out how to save my E-Mail attachments to the ext directory though and I have to continually move them manually, not to mention every app is using the sdcard directory (internal memory) and thinking it is my actual Micro SDHC card. This is a NIGHTMARE and I have read it is not a Motorola problem as new Samsung and HTC phones have the same problem, it is an Android problem. Why the heck would Google change the naming scheme of the SD Card when it worked fine before? Anyway if ANYONE has any solutions suggestions, I would really appreciate it. Thanks
I totally agree. There had to be a way to make all downloads, etc save to sd c
ard-ext.
It's probably going to take a custom Rom to fix.

Weird SD Card Name on MM(6.0.1)

Hi,
My phone is installed by a pre-rooted MM rom and currently it's working welll without any problem.
But I found out one issue for sd card name.
internal memory name is under 'sdcard'.
sd memory(External) name is under 'storage/9016-4EF8'.
I think some app's data is not moved to sd card(External) due to that sd memory name.
For example, I installed "Day" app and data is saved both 'Internal' and 'Ext' in Link2SD app and App2SD app.
I checked file location for the app using 'Link2SD' but app's file location is still in the Internal.
Internal - Data(Data in Link2Sd) : /data/user/0/com.osmino.day
External - Data on SD Card(Data(Ext.) in Link2Sd) : /data/media/0/Android/data/com.osmino.day (Why internal???)
So I could not move data to Data(Ext.) because it's already recognized Data(Ext.) to extern SD card.
I think External SD Card file location would be like this "/storage/9016-4EF8/data/media/0/Android/data/com.osmino.day".
How can I change sd card and internal name or move to external sd card to move to external SD Card?
Do you have any idea?
Thank you.
notgi7up said:
Do you have any idea?.
Click to expand...
Click to collapse
There are several paths to the external SD card with MM
/storage/exfat_uuid
is probably the shortest.
Download a copy of root explorer and familiarise yourself with the new MM file structure, it's not complicated, it just has new names from LL.
Using apps to move other apps onto the SD card doesn't sound like a recipe for success.
Let the Sony app manager do it.
thanks for reply.
then how can i move data to real external sd?
my storage is not enough so i need moving.
i think some app try to install data in external sd. I think many apps try to find sdcard named. currently sd card is internal memory. and exact sd card name is storage/9016-4ef8. i think that's why my internal memory is not enough.
notgi7up said:
thanks for reply.
then how can i move data to real external sd?
my storage is not enough so i need moving.
i think some app try to install data in external sd. I think many apps try to find sdcard named. currently sd card is internal memory. and exact sd card name is storage/9016-4ef8. i think that's why my internal memory is not enough.
Click to expand...
Click to collapse
Take the SD card out, save the data on it, then format it
When you put it back in your phone and it asks you what to do with the SD card, DO NOT format as internal storage. This feature doesn't really work, or if you do get it to work. then it's really buggy and apps can't use it.
Once you have the SD card working, just use settings/apps/*your app* In the first bar down it will say where the app is stored and if you click on it, it will give you the option to move it.

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