Re: More Micro SD Card Problems

Thanks for the ideas, everyone. I emailed the sellers of this kit, Canakit, last week. They said they'd gotten a *lot* of complaints about not being able to format or write to their cards using a Mac, so they'd send me one they say will work. If that doesn't do the job, I guess Windows it is.

Re: More Micro SD Card Problems

Yes, and I've tried it in both positions. However, I also have a USB adapter, which has no such switch. > On Jun 5, 2016, at 22:33, Marshall Scott wrote: > > I haven't been following this thread too closely but is there a write protect > switch on the micro sd to sd adapter? >

Re: More Micro SD Card Problems

I haven't been following this thread too closely but is there a write protect switch on the micro sd to sd adapter? HTH Marshall > On Jun 5, 2016, at 3:44 PM, Sabahattin Gucukoglu wrote: > > You could do worse than to try and manually unmount the disk (without > ejecting it)

Re: More Micro SD Card Problems

OK, try this. Be careful though, it’s dangerous. Unmount the disk, as before. Now, try wiping out the first megabyte of the disk, with a command like this: dd if=/dev/zero of=/dev/disk3 bs=1m count=1 In that command, disk3 is the hypothetical disk. Replace it with the real one. Get it

Re: More Micro SD Card Problems

Thanks. I'm using MS-Dos FAT, because the tutorial I'm following says that the Pi needs that. I followed the steps in the below message, but am now getting a failure when erasing: Unmounting disk. Couldn't open device. Operation failed… That was after unmounting it manually in Terminal.

Re: More Micro SD Card Problems

oups.com> *Date: *Sunday, June 5, 2016 at 2:33 PM *To: *'Chris Blouch' via MacVisionaries <macvisionaries@googlegroups.com> *Subject: *More Micro SD Card Problems Hi all, I emailed a couple days ago, asking if anyone knew why I couldn't format a micro SD card. Well, I've now had this same p

Re: More Micro SD Card Problems

m> Date: Sunday, June 5, 2016 at 2:33 PM To: 'Chris Blouch' via MacVisionaries <macvisionaries@googlegroups.com> Subject: More Micro SD Card Problems Hi all, I emailed a couple days ago, asking if anyone knew why I couldn't format a micro SD card. Well, I've now had this same p

Re: More Micro SD Card Problems

You could do worse than to try and manually unmount the disk (without ejecting it) before the erase. This has worked for me before. You’ll use Terminal. Make sure you use the MBR partition scheme with your FAT file system when creating it. Use the “Erase” function (as of El Cap) or Partition

Re: More Micro SD Card Problems

Best wishes, Jonathan Cohn > On Jun 5, 2016, at 2:33 PM, Alex Hall wrote: > > Hi all, > I emailed a couple days ago, asking if anyone knew why I couldn't format a > micro SD card. Well, I've now had this same problem with another card, and > with both cards in two

More Micro SD Card Problems

Hi all, I emailed a couple days ago, asking if anyone knew why I couldn't format a micro SD card. Well, I've now had this same problem with another card, and with both cards in two different adapters. This is almost certainly software, and not a problem with the cards or readers. Micro SD cards