Dave wrote: > > The drive was formatted EXT4. Linux could not fix the disk problems > even after repeated tries. I plugged the drive into a Windows XP system > and reformatted the disk expecting it to fail. It took a while to > format but it did so cleanly and the Seagate diagnositic software said > that all was good! So I imaged the original LinuxCNC system back onto > the disk and it has been running fine in my office for over a week > now. No flaky operation. So for whatever reason, the EXT4 file > system became corrupted in such a way that the Linux system was unable > to recover from it, even though the disk itself was still good. That > is the first and hopefully the last time I see that problem! > There's something going on with EXT4 so that it doesn't handle uncontrolled system shutdowns. At least, that's what I think is going on. A lot of BeagleBoard/BeagleBone users also report corrupted file systems on SD cards using EXT4, and when they back off to EXT3, no more problems. I have some embedded devices with Beagle Boards in them that are usually shut down by just switching the system off ungracefully, and had the same problem just a couple of times. Now, on EXT3 all seems OK. I can't explain it, but my experience seems to mirror the reported problems.
Jon ------------------------------------------------------------------------------ This SF.net email is sponsored by Windows: Build for Windows Store. http://p.sf.net/sfu/windows-dev2dev _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
