On Tue, 11 Oct 2011 06:23:45 -0700 (PDT) Rich Shepard <[email protected]> dijo:
>On Mon, 10 Oct 2011, John Jason Jordan wrote: > >> I find it very strange that my phone has no problem with it; it's >> just my Thinkpad that can't write to it. > >John, > >Wasn't it you who wrote a few months ago about reading somewhere that >phone sd cards should be formatted only in the phone? And that all >writes should be done in the portable device? Not exactly. I did write when I had the same problems with the original mini Transcend 32 GB that I bought, and its replacement, a micro Transcend with adapter. The fact that I have had two different brands produce the same results is one reason to suspect Linux. But it might also be the Thinkpad, including the possibility of a physical problem in the reader or the adapters. Or it might be that Transcend somehow locks their SD cards as well as SanDisk. I have also discovered that there was a change required when SD cards > 4 GB became available. Apparently they required modifications to the drivers. But my dim understanding is that if you have the old drivers the card won't even be seen. >I know that I formatted the sd cards for my friend's new digital still >camera, and my new video camcorder, in the devices. Both can be read >and written to in the computer ... that's the vfat type assigned >to /mnt/zip in my /etc/fstab/.. When I copy the files from my >Panasonic camera I delete them from the card. Perhaps Android phones >need total control. But, not being able to read them in your laptop is >quite strange. When the card arrived I tried it first in the Thinkpad, where I discovered that it was read-only. At that time it was vfat from the factory. When I put it in the phone I was able to format it. When I moved it back to the laptop it is still read-only with "LBA" and "boot" flags set, the same as the original factory vfat. All that is different is that there are now two empty folders: LOST and android-secure. In my phone there are no options in the format command. All you get is a button that says "Format." In fact, it was so fast I wonder if it actually formatted the card. It may have just done an fsck, determined that there were no errors, and added the two folders. If I can get it read-write in a Windows computer at PSU today I will see if I can get the Windows computer to reformat it. At least Windows should give me some options so I can remove the flags. Maybe I can just format it NTFS to be sure everything from SanDisk is wiped out. Then later I can reformat it FAT32 or EXT3. _______________________________________________ PLUG mailing list [email protected] http://lists.pdxlinux.org/mailman/listinfo/plug
