I have a SD-Card and it doesn't work anymore. If I enter dmesg, this console will show this:

[  646.467407] mmc0: new SD card at address d555
[  646.468578] mmcblk0: mmc0:d555 SD032 30.6 MiB 
[  646.474167]  mmcblk0: unknown partition table

It shows, that the card has 30.6 MiB, but it has 32 GB. I cannot create a partition and with testdisk could not repair this. testdisk "thinks" it the card has only 972 cylinders.

The damage happens, after I have written a Raspbian image on the card.

  • It simply need all partitions to be removed.
  • Create New Primary Partition and Format it with All O's.
  • How can i remove all partitions? Linux just sees the 32 MiB, not the complete sd drive. And if i want to create a new primary partition, i just could do this on the 32 MB and i get errors. – user116522 May 23 '15 at 18:07
  • Well.. I'm compatible only with Ubuntu and DOS.. If you have one of them, then only I can tell the Process.. – user388229 May 23 '15 at 18:09
  • I have Ubuntu.. – user116522 May 23 '15 at 18:14

Goto Bash..
Search "Disks" and Open it..
Select Memory card.. You'll be able to see that 32MB is used and rest is
Free Memory..
Clear the used memory( i.e. 32MB)
You'll be with all free space in Memory card..
Now Format it.. With all 0's..

  • Welcome to the site, Please read Tour of site for answer/question. – PersianGulf May 23 '15 at 18:41
  • It doesn't work :(. In Disks i see, that my sd card only has 32 MB with format: "unknown". Format with zeros doen't help. I got the message: "Error synchronizing after formatting with type `dos': Timed out waiting for object (udisks-error-quark, 0)" – user116522 May 23 '15 at 21:13
  • Are you able to see Free Space of your Memory Card. Well, If yes, then only my method will help else not. – user388229 May 24 '15 at 0:49
  • No, i'm not able to see Free Space. – user116522 May 24 '15 at 10:25

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.