Thanks. You've been tremendously helpful thus far. I appreciate it. Will post any successful results. On 11 May 2017 at 22:27, NeilBrown <neilb@xxxxxxxx> wrote: > On Wed, May 03 2017, Alfred Matthews wrote: > >> Sorry to disappear for a bit. >> >> Of necessity I've migrated to another working system and I'm in Arch. >> Utility here is fsck.hfs as opposed to hpfsck. I'd like to post that >> output. > > I wonder if they are the same thing, or completely different. > >> >> mdadm --build /dev/md0 --level=0 -n2 --chunk=8K /dev/sdb2 /dev/sdc2 >> >> works, then, >> >> fsck.hfs -v /dev/md0 >> *** Checking volume MDB >> drSigWord = 0xffffffff >> drCrDate = Mon Feb 6 06:28:15 2040 >> drLsMod = Mon Feb 6 06:28:15 2040 >> drAtrb = BUSY | HLOCKED | UMOUNTED | BBSPARED | BVINCONSIS | >> COPYPROT | SLOCKED >> drNmFls = 65535 >> drVBMSt = 65535 >> drAllocPtr = 65535 >> drNmAlBlks = 65535 >> drAlBlkSiz = 4294967295 >> drClpSiz = 4294967295 >> drAlBlSt = 65535 >> drNxtCNID = 4294967295 >> drFreeBks = 65535 >> drVN = "" >> drVolBkUp = Mon Feb 6 06:28:15 2040 >> drVSeqNum = 4294967295 >> drWrCnt = 4294967295 >> drXTClpSiz = 4294967295 >> drCTClpSiz = 4294967295 >> drNmRtDirs = 65535 >> drFilCnt = 4294967295 >> drDirCnt = 4294967295 >> drEmbedSigWord = 0xffff >> drEmbedExtent = 65535[65535..131069] >> drXTFlSize = 4294967295 >> drXTExtRec = >> 65535[65535..131069]+65535[65535..131069]+65535[65535..131069] >> drCTFlSize = 4294967295 >> drCTExtRec = >> 65535[65535..131069]+65535[65535..131069]+65535[65535..131069] >> Bad volume signature (0xffffffff); should be 0x4244. Fix? y >> Volume creation date is in the future (Mon Feb 6 06:28:15 2040). Fix? y >> Volume last modify date is in the future (Mon Feb 6 06:28:15 2040). Fix? y >> Volume bitmap starts at unusual location (1), not 3. Fix? y >> *** Checking volume structure >> *** Checking extents overflow B*-tree >> >> It's possible that I was unwise in accepting the changes from fsck. > > Definitely possible. > > Given how many of the numbers listed above are 0xffff or 0xffffffff, it > is unlikely that the tool found anything useful. > >> >>>> >>>> How is your C coding? You could >>>> apt-get source hfsplus >>>> and hack the code and try to build it yourself.... >>>> >> >> Still fine. By now not clear if this is what's needed. > > I don't think I can be of further help, sorry. > > NeilBrown > > >> >> Al >> -- >> To unsubscribe from this list: send the line "unsubscribe linux-raid" in >> the body of a message to majordomo@xxxxxxxxxxxxxxx >> More majordomo info at http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html