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[HOWTO] mount EMMC and External SD on CM7 as it is on Stock ROMs

OP talmeida

14th March 2012, 02:51 AM   |  #1  
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Hello Everyone.
In this post, I would like to show how to mount Internal SD card and External SD card when using Cyanogenmod 7 ROM.
I had some issues because CM7 mounts the internal SD card under /mnt/emmc and mounts external SD card under /mnt/sdcard.
As you know, there are many applications that download data using /mnt/sdcard as path and if you have CM7 way of mounting these apps won't work.

So to mount Internal SD card to /mnt/sdcard and External SD card to /mnt/sdcard/external_sd as it is done on Stock ROMs proceed with the following:

1 - Open the file /etc/vold.fstab with your preferred text editor (I use root Explorer) and find and modify the last lines as below an then save:

# internal sdcard
dev_mount emmc /mnt/sdcard 28 /devices/platform/msm_sdcc.1/mmc_host/mmc0/mmc0

# external sdcard
dev_mount sdcard /mnt/sdcard/external_sd auto /devices/platform/msm_sdcc.3/mmc_host/mmc2/mmc2

# otg sdcard
usb_mount sdcard2 /mnt/sdcard/usbStorage auto /devices/platform/msm_hsusb_host.0

#end line

2 - Open the file /system/build.prop with your preferred text editor and find and modify the following lines as it is show an then save:

# notify vold we have internal and external sd
ro.additionalmounts=/mnt/sdcard/external_sd
ro.vold.switchablepair=/mnt/sdcard/external_sd,/mnt/sdcard

3 - Reboot the phone and voilá

This procedure worked for me and I have no issues to mount both my Internal and External SD cards when plugging the phone on my laptop.
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14th March 2012, 05:08 PM   |  #2  
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a good guide indeed for the CM7 ROM users

I did something similar for all my Gameloft games, EA games, Glu games, and DATA partition, and Download, and all the other stuff, basically i mounted everything off to my 64 GB SD card instead of internal SD

lets give this topic some flight time, stuck for a month, it'll come off by itself
also added to main INDEX
Last edited by AllGamer; 14th March 2012 at 05:11 PM.
14th March 2012, 07:19 PM   |  #3  
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Thanks AllGamer...
15th March 2012, 04:38 PM   |  #4  
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thanks, i was looking for something like this for a while.
16th March 2012, 02:05 AM   |  #5  
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Thanks so much for this. Thanks a bunch!!!
16th March 2012, 04:55 AM   |  #6  
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Can someone who had flashed ICS Alpha builds tell us if this procedure works on them?
Thanks and I am glad I'd helped someone by doing this post :)
21st March 2012, 01:16 AM   |  #7  
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Testing this out right now on Isotope, let's all keep our fingers crossed.
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21st March 2012, 07:25 PM   |  #8  
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Quote:
Originally Posted by talmeida

Hello Everyone.
In this post, I would like to show how to mount Internal SD card and External SD card when using Cyanogenmod 7 ROM.
I had some issues because CM7 mounts the internal SD card under /mnt/emmc and mounts external SD card under /mnt/sdcard.
As you know, there are many applications that download data using /mnt/sdcard as path and if you have CM7 way of mounting these apps won't work.

So to mount Internal SD card to /mnt/sdcard and External SD card to /mnt/sdcard/external_sd as it is done on Stock ROMs proceed with the following:

1 - Open the file /etc/vold.fstab with your preferred text editor (I use root Explorer) and find and modify the last lines as below an then save:

# internal sdcard
dev_mount emmc /mnt/sdcard 28 /devices/platform/msm_sdcc.1/mmc_host/mmc0/mmc0

# external sdcard
dev_mount sdcard /mnt/sdcard/external_sd auto /devices/platform/msm_sdcc.3/mmc_host/mmc2/mmc2

# otg sdcard
usb_mount sdcard2 /mnt/sdcard/usbStorage auto /devices/platform/msm_hsusb_host.0

#end line

2 - Open the file /system/build.prop with your preferred text editor and find and modify the following lines as it is show an then save:

# notify vold we have internal and external sd
ro.additionalmounts=/mnt/sdcard/external_sd
ro.vold.switchablepair=/mnt/sdcard/external_sd,/mnt/sdcard

3 - Reboot the phone and voilá

This procedure worked for me and I have no issues to mount both my Internal and External SD cards when plugging the phone on my laptop.

does it work for other devices cm7 roms??
22nd March 2012, 01:53 AM   |  #9  
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tried it and didn't work for me. Might have typed it wrong. Will try again.

I only used the file browser to see if i can access both the emmc and the sd card but could only get to the emmc
Last edited by drzplaya1121; 22nd March 2012 at 02:00 AM.
4th April 2012, 11:04 AM   |  #10  
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I will try...

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