Forums/ASTRO NEWS & UPDATES/Announcements & Known Issues

UPDATED: Can't view/find my external storage (sd card & USB devices)

Support @ Metago
posted this on October 19, 2011 16:55

External Storage (SD Cards & USB Devices) Not Set Right on Select Android Devices.

We've received a number of instances from our users regarding their external storage not being set correctly. This is happening because not all tablets have the same external storage path.  Because there is no Android standard for this, each manufacturer does this on a per model basis.

UPDATE: With the most recent version of ASTRO on Android's marketplace, ASTRO can now recognize mounted devices! If you have your SD card or USB device connected, recognized, and mounted in the Android OS, then you can simply go to ASTRO's preferences and either select SD Card Directory or USB Directory and a list with active mount points will be displayed. Select the correct path and you should now have access to your external storage device!

Here is a quick workaround to access your external device if the latest update is unsuccessful.

From ASTRO's default home directory (/mnt/sdcard) press 'Up' on the toolbar to navigate to /mnt. From here, there should be a folder(s) corresponding to your SD card and/or USB device. They are generally named 'sdcard-ext', 'sd_external1', or 'usb_storage'. Once you know the correct folder to your storage device, you can either long press and choose to bookmark that location, or simply navigate to that folder when you want copy data to and from your device.

NOTE: If you cannot find the correct folder in /mnt, you can look in either /removable in /mnt or press 'Up' on the toolbar to navigate to your root directory ('/') and look for the /removable folder there.



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how does one determine the external storage directory for their device? i have xoom tablet running latest honeycomb os.
October 24, 2011 16:10
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David Pickard

bkruemp, the Xoom SDCard is called /mnt/external1/. This "fix" will not work for Xoom users as Astro still will not write to the SD card, but you can read the contents of the card by hitting Astro's Home button, the hit Up once. Then select external1.

October 24, 2011 18:07
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David Pickard

bkruemp, the Xoom SDCard is called /mnt/external1/. This "fix" will not work for Xoom users as Astro still will not write to the SD card, but you can read the contents of the card by hitting Astro's Home button, the hit Up once. Then select external1.

October 24, 2011 18:08
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Paul Strong

Just wanted to add this info incase anyone needed it for the Asus Transforme


I tested this and it works, it is also case sensitive.

November 15, 2011 10:01
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Dennis Bisson

Just got a Kobo VOX ereader.  Installed external SD card but can't see it in Astro.  Found the following quote above "From ASTRO go to Preferences > External Storage Directory".  Unfortunately I can't find "External Storage Directory" in Preferences.

November 28, 2011 15:57
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Steve Chobot

Hi... have a 32g Samsung Micro SD Card in "external1".  I cannot create/delete directories move form internal storage to the external1 MSD card.  Yes I can read it but only in AstroFM.  Zoom apps cannot access folders to write there. I tried formatting the MSD card on my PC both as FAT32 and NTFS.  an have folders for Audio Books, Documents, Cell1 Pics and Cell2 Pics MP3 Music, and can view or play all from within Astro but not from other Xoom apps.   I can copy external files and folders to Internal Memory (mnt/sdcard) and it can be used there.  INTERESTING???? The 32g card was renamed to Xoom32g on the PC (which is not external1) is this a problem?.  

Hope this info may help.  I like Astro but the external SD card problem is frustrating.  Addl info - the Xoom has been converted to 4gl and is running Honeycomb 3.2.2.

2nd issue....  I see you have a USB storage Icon. Any Idea when External USB Storage support through the small usb port will become available?? I have purchased the Micro USB to female USB (with some type of crossover or grounding and this does not work. I have also tried a double female gender bender (no grounding or crossover) and it does not work.  

Do you send out and email when the issue is resolved or do I just need to keep checking?  Worked as a PC software developer, troube shooter problem solver in my previous incarnation and would be happy to check out new fixes if you need any help

December 02, 2011 16:58
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dave nussbaumer

When in the Astro File Manager program I go into preferences but there is nothing in there that indicates "external storage directory". I have a Motorola Milestone X2 running gingerbread. I must be doing something wrong but can't see what it could be. Right now I cannot access the 32GB storage card with this program. 

December 08, 2011 03:08
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Elizabeth Hougard

I did what David Pickard suggested and then I Bookmarked it.  Now it shows up every time when I enter Astro

December 11, 2011 19:50
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Dennis Bisson

used the "Home" then "Up" to access external SD card on the Kobo Vox.  Was able to create a new directory on the external card but could not move files from internal to external card.  Still can't find external storage directory under Preferences.  In preferences under Directories I have selections for Home and Backup directories.



December 12, 2011 09:47
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Jack Nixon

Very frustrating trying to find my external sd card on my CRUZ. It shows under SD cards and storage , but not with Astro! It worked once, but then stopped. I seeno external storage directory in Astro preferences. HELP!

December 29, 2011 01:02
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Robert Durand

Tried above suggestion but could not get it to work on my Asus transformer. It doesn't see my microsd card or my USB port. Hope it gets fixed as I really like Astro but can't use it right now.

January 12, 2012 14:09
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Mike Stefanski

Does anyone know the Directory paths for the ASUS keyboard's USB and SD card ports?

January 18, 2012 02:05
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does anyone know what directory path to give for usb access in preferences for motorola zoom. i have got the usb wire from motorola and can use a mouse or keyboard but unable open external usb drive using astro?

January 25, 2012 11:46
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Ken Burgi
Iam not allowed to change the "SD Card Directory" or "USB Directory" under "Prefences"->"Removeable Storage". When I attempt to change them, it ony shows a list with the only option "/mnt/sdcard". Bookmarks are my workaround for now.
January 30, 2012 01:04
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Support @ Metago

Hi Ken,

What device are you using ASTRO on? There is a known issue if your SD card or USB device's path is not located in your /mnt directory. We've implemented a fix in our internal build that checks for active mount points in both /mnt and for those devices that have /removable in their root directory.

Also, please make sure that Android recognizes the SD card or USB device. Sometimes a user will have to go to their device's settings, select storage and choose to mount their storage device before ASTRO will recognize it.

January 30, 2012 15:01
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Ken Burgi
I'm using ASTRO on my Transformer Prime TF201. All the removeable media is mounted to "/Removeable" (i.e. "/Removable/MicroSD" or "/Removable/SD" or "/Removable/USBdisk1")
January 30, 2012 20:40
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Ken Burgi
Just noticed I spelled "/Removeable" wrong... It should be "/Removable"
January 30, 2012 20:41
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Support @ Metago

No worries, I believe we have a proper fix implemented in-office that will resolve this issue. We hope to up have an update on the market soon. :)


Kind regards,

The ASTRO Team

January 31, 2012 10:06
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Chris Dart

It says that Astro can now recognise mounted devices - it does not! USB directory is always set to /mnt/sdcard, whatever I do. It should be /Removable/USBdisk1. Backup always goes to /mnt/sdcard/backups - my backup folder is at /Removable/MicroSD/backup, but I cannot set that.

I would prefer Home to be just / but it will not accept that.

I see Ken Burgi has the same problems! - await your fix!!

TF201 with dock.

February 08, 2012 06:04
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Jose Luis Malaquias
Any idea when the issue of finding devices mounted on Removable folder will be solved? When will the update be released? Any chance we can use your internal build in the meantime?
February 09, 2012 11:45
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any fix for zoom users to access usb drive

February 09, 2012 12:08
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Bob Wilson
The XOOM tablet is the number 3 selling tablet in the US (I replaced my Viewsonic Tablet with the XOOM 3 months ago just so I would have a better user experience with ICS 4.x and not having to root the device to access the Google Market).  I've used ASTRO file manager for years now, but am like so many others that found out (after my expensive XOOM purchase), that I cant write to the external SD card.   With access from many cloud programs, such as Amazon and Google Drive for music, video, etc... I want and need to use my external XOOM drive for cache storage, application data storage, and application backup....  
Since XOOM is such a popular tablet, are there any plans to work with Motorola on a work around solution?  For me, the XOOM external SD card serves no purpose.  I need to be able to read/write to that external SD drive for so many application purposes.   I am sure other users are just as frustrated.   
On my Viewsonic Tablet I used a program App2SD, which could move a complete application, or for some programs, the data associated with programs, onto the external SD Card.  This allowed only necessary programs, system applications, and data accessed constantly, to reside on the internal drive.   My Viewsonic actually performed faster (but it was rooted).  I really don't want to root my XOOM just to fix a manufacturer's problem.  Users should not have to relay on 2nd party operating systems (which can void warranties and potentially 'brick' devices).   I want to use XOOM's installed ROM, but am worried that Motorola designed the device without the input of users!  This is so frustrating.
Let us know if there are any plans in the works to help us better utilize our external XOOM SD drives!   
May 30, 2012 17:36
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Ian Scott

 ANDROID TABLETS     For those who cant access or mount  their SD cards,  carry out a thorough  format - NOT a quick format, copy your files back to your SD card     Done.

August 02, 2012 21:16
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For all of us who have an Android version > 3.2 there's no write permission to a external SD card if there's already an internal SDcard.

Since version 3.2 there's an additional permission "WRITE_EXTERNAL_STORAGE ", as Astro doesn't ask for this permission there's no write capability (some vendors bypassed the permission).

For root users there's a hack described here:

August 16, 2012 09:04
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Matt Kyle

With the update and new interface, I can no longer display folders in the Android device (Captivate w/CM10).  I can browse Google Drive and network shares, that's great but the only choice I have for the device in my hand is to search it.  This is a huge handicap for me.  Thought the "My Files" search choice would possibly put me into /mnt/sdcard but no.. it hangs and never displays anything.  Right now, I am feeling remorse for buying this app when the new design was released.  Can you help?

September 11, 2012 08:48
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on my "Samsung Note" I can not take the Pro version "ASTRO Pro" in operation, but the version of "ASTRO File Manager"

For applications appear both versions, however, is "ASTRO Pro" only 36 KB in size (version 1.0.1). In contrast, "ASTRO File Manager" is 7.18MB in size.

So how can I now download the purchased on Google Play "ASTRO Pro" version completely?

January 07, 2013 09:20
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I am having the same problems.! Have the original Motorola android from 2009. Have a ton of info on Astro that I cannot transfer to on phone SD card. I want to update my phone but will loose all programs, contacts, pictures, and downloads because I backed them up to astro! Can get to SD/ mount. But no options to transfer to internal SD card so I don't loose all my info. Sent to support and no help yet. Anybody have solution yet?
February 12, 2013 22:12
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Stuart Martin

I can't anything about OTG support in Astro. I have a USB stick attached by OTG cable to my Nexus 7, but Astro doesn't see it at all. I can play media files from the stick, but I can't access it to copy the subtitles I need. 

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