On Feb 12, 2014, at 1:42 PM, Robert P. J. Day <rpjday@xxxxxxxxxxxxxx> wrote: > On Wed, 12 Feb 2014, murph wrote: > >> Try the poorly-named "testdisk" to see if it can get any of the old >> partition information. I've had good luck with recovering >> accidentally-partitioned disks. > > so here's the current output from that utility after it finished a > lengthy scan of the (corrupted) drive: > > Disk /dev/sdb - 750 GB / 698 GiB - CHS 91201 255 63 > Partition Start End Size in sectors >> FAT16 >32M 0 32 33 12 93 17 196608 [boot] > Linux 0 32 33 45105 20 35 724611072 > Linux 12 93 18 216 183 31 3282944 [rootfs] > * Linux 48416 239 16 48612 191 27 3145728 > P Linux 70007 45 55 70008 50 58 16384 > P Linux 86771 149 35 86779 190 3 131072 > L Linux Swap 89115 185 31 91201 52 51 33503232 Huh. Is this a recent version of testdisk? Or has it been intentionally switched to CHS mode? I've only ever seen recent versions report in LBA, which is a lot easier to figure out about where the obliteration with dd occurred. > now, the "boot" and "rootfs" entries would correspond to the 2G > bootable SD card image that was written over the beginning of the > disk, and i would *guess* that the sizable "Linux" partition is the > home partition/LV that is the object of recovery, but i have no idea > what to do next or whether "testdisk" has the capability of > recognizing logical volumes. Without having looked at the code, if it doesn't find the PV metadata I don't think it's going to find the VG metadata either. I'm thinking it's finding a backup ext superblock from this: > Linux 0 32 33 45105 20 35 724611072 What you'll do is have testdisk copy files out of this, onto separate storage. Some files will probably be hosed, and I can't say whether testdisk will inform you of their viability in advance. > > oh, crap, i hit "Quit" to back out of a menu and this utility just > cleared all those results, so i have to do the scan again. grrrrr … Make sure it's v6.14 before going to the trouble again. Chris Murphy -- users mailing list users@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe or change subscription options: https://admin.fedoraproject.org/mailman/listinfo/users Fedora Code of Conduct: http://fedoraproject.org/code-of-conduct Guidelines: http://fedoraproject.org/wiki/Mailing_list_guidelines Have a question? Ask away: http://ask.fedoraproject.org
