On Sun, Sep 13, 2009 at 02:13:45PM +0000, Matt Rosales wrote: > Hi All, > I have been experiencing data corruption on my DM-Crypt / LUKS > system running Jaunty. Most noticeably it happens with my media (music > dominantly), in the form of read-write errors when copying or moving files, > and as corrupted songs that worked fine before. It is > entirely plausible that other parts of my system are corrupt as well, but > the media is the most noticeable case. This happened before when I was > running Hardy as well, and so when I upgraded to Jaunty I did a fresh > install, wiping the partitions before hand. The data corruption may be due > to a periodic hanging of the system at shut down, which I have not > discovered the cause of, but which apparently prevents the crypted disks > from unmounting, as I get errors upon the following boot- however fsck > doesn't return anything of note! So my question is: How do I determine if I > have a bad hard disk, bad memory, or merely an improper shutdown problem? The first step is to determine the precise nature of the corruption. Is it flipped bits (->RAM), defects in sector size (512B) or blocks (4kB) (-> disk) or files cut that you just before copied there (->shutdown)? For RAM you can also run memtest86+ for a day or so. For the disks you can run s long smart selftest and look at the attributes, both with the smartmontools. Arno -- Arno Wagner, Dr. sc. techn., Dipl. Inform., CISSP -- Email: arno@xxxxxxxxxxx GnuPG: ID: 1E25338F FP: 0C30 5782 9D93 F785 E79C 0296 797F 6B50 1E25 338F ---- Cuddly UI's are the manifestation of wishful thinking. -- Dylan Evans If it's in the news, don't worry about it. The very definition of "news" is "something that hardly ever happens." -- Bruce Schneier _______________________________________________ dm-crypt mailing list dm-crypt@xxxxxxxx http://www.saout.de/mailman/listinfo/dm-crypt
