Swapping SD cards adoptable storage - Android Q&A, Help & Troubleshooting

Hey there folks,
I've been using adoptable storage on my Moto X pure with great success.
I'm hoping that someone has more experience with adoptable storage than me that can help.
I am currently using a 32 gigabyte SD card and want to swap it with a new 64 gigabyte SD card. Can I just copy the contents from my old 32 gigabyte card to my new 64 gigabyte card and put the new 64 gigabyte card in the phone and expect it to work as before?
Thanks for any insight.

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bumpbump

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I have the same problem with a S5 (cm13). Used a 32gb card initially. Now bought a 128gb card and I want to upgrade it moving everything from the old card to the new one.
I found no documentation on internet so if no one has a better suggestion I think I'll go for the "raw" way.
I'll turn off phone, take out old card, attach it to a linux box along with the new one and "sudo dd if=/dev/oldcard of=/dev/newcard"
Once data is copied I'll try to insert the "new" card in the phone and see what happens. If the device works normally I'll power it off again, connect to the linux box again and create a new entry in the partition table to use the "remaining" empty space as an external "portable" SD.
I hope this will lead to the same "resulting" configuration when you use the command "sm partition disk:XXX mixed yy"

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I wish the best, I ended up needing to update my rom so I just wiped everything and started fresh with the new Microsd. However I'm still curious if your method will work for future reference.

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Thanks. If I succeed I'll post a tutorial on how to do that. Maybe someone finds it useful.

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It works.
So...How to do that?
turn off phone (wait for it to be really off).
extract microsd.
insert into microsd reader (it's faster if you have TWO microsd readers, usb3. I had just one and times were longer)
boot ubuntu (or any other linux)
copy the image of the old sd card on the disk.
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once done take out the microsd reader from usb port, swap card with the new one and plug it again in usb port.
(optional) verify that your microsd reader works good with the new card.
Good! device contains only one partition (a big exfat one).
ensure that the system DOESN'T mount automatically the card. if it does "eject" (unmount) it.
copy back the data onto the new sdcard.
once done we got to tell the kernel to refresh the partition table.
the error just means the disk is bigger than what the partition table knows. We got to fix that and another problem. GPT has a backup partition table at the end of the disk (which on the new disk isn't "at the end" any more 'cause it's located at the end of the "source" disk)
check the partprobe result on dmesg. we should see that the kernel saw the new partitions and complains about the backup. let's fix it.
(optional) take out the reader from the usb port, put card in the phone, boot up, let it settle, check everything works fine (it should work exactly as before, no extra space yet).
turn off phone again (let it turn off completely), extract sd, put sd in reader, put reader in USB port (i plugged it in another usb port and the device became sdb...but it's just the same card)
let's create the "portable" space with the unused space. I used parted, you can use whatever you like.
and create the filesystem... (I did also a check on the new FS to see it is everything ok)
do not forget to set the partition type you just created as type 0700 (windows).
when you first create the "unformatted" partition entry in the partition table, by default, it gets "Linux filesystem" type. before putting the card back into the phone you gotta change the type to windows or android won't see it.
put card back in the phone...et voilà, the system says "hey, you inserted a new card, what do you want to do?" choose portable to leave the partition AS IS (I don't want to convert the new one to adopted storage too).
when you connect the phone through MTP you will see both the storage spaces
it's worth to note that this "raw copy" method creates problems if you try to read the card on windows 7 or earlier. why?
windows sucks (we all know it) and requires that the "portable" partition is the first in the gpt disk. (it is not, we added it at the end of the disk)
on windows 10 microsoft realized the world isn't all about windows and corrected this bug so you can just plug the sdcard on the port to read/write data.

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Clarify please
LinoX said:
So...How to do that?
turn off phone (wait for it to be really off).
extract microsd.
insert into microsd reader (it's faster if you have TWO microsd readers, usb3. I had just one and times were longer)
boot ubuntu (or any other linux)
copy the image of the old sd card on the disk.
once done take out the microsd reader from usb port, swap card with the new one and plug it again in usb port.
(optional) verify that your microsd reader works good with the new card.
Good! device contains only one partition (a big exfat one).
ensure that the system DOESN'T mount automatically the card. if it does "eject" (unmount) it.
copy back the data onto the new sdcard.
once done we got to tell the kernel to refresh the partition table.
the error just means the disk is bigger than what the partition table knows. We got to fix that and another problem. GPT has a backup partition table at the end of the disk (which on the new disk isn't "at the end" any more 'cause it's located at the end of the "source" disk)
check the partprobe result on dmesg. we should see that the kernel saw the new partitions and complains about the backup. let's fix it.
(optional) take out the reader from the usb port, put card in the phone, boot up, let it settle, check everything works fine (it should work exactly as before, no extra space yet).
turn off phone again (let it turn off completely), extract sd, put sd in reader, put reader in USB port (i plugged it in another usb port and the device became sdb...but it's just the same card)
let's create the "portable" space with the unused space. I used parted, you can use whatever you like.
and create the filesystem... (I did also a check on the new FS to see it is everything ok)
do not forget to set the partition type you just created as type 0700 (windows).
when you first create the "unformatted" partition entry in the partition table, by default, it gets "Linux filesystem" type. before putting the card back into the phone you gotta change the type to windows or android won't see it.
put card back in the phone...et voilà, the system says "hey, you inserted a new card, what do you want to do?" choose portable to leave the partition AS IS (I don't want to convert the new one to adopted storage too).
when you connect the phone through MTP you will see both the storage spaces
it's worth to note that this "raw copy" method creates problems if you try to read the card on windows 7 or earlier. why?
windows sucks (we all know it) and requires that the "portable" partition is the first in the gpt disk. (it is not, we added it at the end of the disk)
on windows 10 microsoft realized the world isn't all about windows and corrected this bug so you can just plug the sdcard on the port to read/write data.
Click to expand...
Click to collapse
SO for clarity if we are using the exact same size and brand of storage, just faster, and want everything exactly the same we stop at step 10? Correct? I will use a usb c reader if I want removable storage. The primary thing for me is identical to original.
EDIT I meant step 9.

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nooneelsesdroid said:
SO for clarity if we are using the exact same size and brand of storage, just faster, and want everything exactly the same we stop at step 10? Correct? I will use a usb c reader if I want removable storage. The primary thing for me is identical to original.
EDIT I meant step 9.
Click to expand...
Click to collapse
if you don't need the extra space yes, you just "dd" the "disks" (it's like a 1-1 copy of the card)...but nowadays it's kinda pointless and good quality, huge cards are very cheap...

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Well shoot I tried it and it yelled at me to put back in the other card. My bad was they are in fact different brands, I think you need to stick with the same brand. I was coming from a Samsung Evo Plus Grade 3, Class 10, A1 and went to a SanDisk Extreme Grade 3, Class 10, A2, v30. I even dd'd the whole thing /dev/sdb. It knew new the brand... bummer.