Jump to content

shrinkt sdcard and copy to other one


Recommended Posts


I tried to shrink my sdcard (64gb, 17gb in use) and copy it to a 32gb card.

I found a tutorial, but it don't work

I fownloaded gparted and create a bootable device.


The instruction

1.resize2fs /dev/sda1 [new size of the partition]

in my case the original card is sdc1

2. Copy the shrinked device to the new device

dd if=/dev/sda of=/dev/sdb


In my case dd if=/dev/sdc of=/dev/mmcblk0


Is it really correct to use it without the "1" ? Sda, not sda1?


However It didn't work....

Gparted gui shows me, that the original sd card has the original size 58.24gb. But I shrinked it to 27gb..... with resize2fs /dev/sdc1 27000M


So I use gpated gui, by right click on device and select change volumesize.

This worked, now I shrink the partition to 17gb.


So looks good. After this , i tried

dd if=/dev/sdc1 of=/dev/mmcblk0 to copy the partition.

The odroid not boot, when I insert the card.

Thd card hasn't a partition table, maybe this is the fail.


So I do it again, but create a partition on the new sdcard, before i copy the old files on it. When I copy the files with dd, i will lose the partitions table.


What is the fail


Should i try to copy the full card to the new card

Remember: on the new card is one shrinked partition with my armbian (17gb) and the rest of the card isn't as a partition.

Thank you




Edited by jumbo125
Link to comment
Share on other sites

  • jumbo125 changed the title to shrinkt sdcard and copy to other one

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Reply to this topic...

×   Pasted as rich text.   Restore formatting

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

  • Create New...

Important Information

Terms of Use - Privacy Policy - Guidelines