2

In previous versions of OS X, I used the UDF format extensively.

I recently had to upgrade to El Capitan, and now none of my UDF drives are readable (Finder prompts me to intialize the disk).

Since previous versions of OS X supported it, and since UDF is a popular and widely used ISO standard format, I suspect that I'm just overlooking something. How do I get UDF support back?

UPDATE: I have discovered that there is a mount_udf command. I tried it out and it caused a kernel panic. I can verify that the drives worked on my old Mac OS X system, and still do work on my Windows and Linux machines.

Improve this question
4
  • Try running fsck_udf on the disk. It's possible there's some corruption, which just happens to not be causing an issue on most operating systems. Either that or Apple borked something, which is always possible.
    – William T Froggard
    Commented Feb 1, 2016 at 11:30
  • At this point, I don't trust Apple's UDF implementation to trust its fsck_udf tool. It seems unlikely that all 8 of my UDF drives would be corrupted in such a way that they work on all other OS's but OS X. Still, I will try an fsck on one of the drives from Linux and see if that avoids the Apple kernel panic.
    – sevis127
    Commented Feb 1, 2016 at 20:11
  • Tried fsck on a drive, no improvement. I'm making a backup of one of the drives today, and I'll risk APple's UDF fsck tonight.
    – sevis127
    Commented Feb 3, 2016 at 0:43
  • good luck! Smooth sailing.
    – William T Froggard
    Commented Feb 3, 2016 at 0:45

0

Reset to default

You must log in to answer this question.

Browse other questions tagged .