On Thursday 10 September 2020 14:12:08 deloptes wrote: > William Morder via tde-users wrote: > > I intend to try all other avenues for data recovery, before I try > > performing surgery on the hard disk itself. That is a last option, I > > think. > > ok, but if you use the badblocks command to identify potential bad block, > you could then easily get the filesystem mounted. > Ah ha! This sounds promising. Looks like I need to do so more research. I only skimmed over those pages on badblocks, but if I can get it at least mounted, then I ought to be able to recover and move those files to somewhere safe. Thanks much, everybody! So far testdisk has progressed to about 80% complete, and it says about the same thing as before. This was never a boot disk, so I wonder if that is a bad sign. Also, it occurred to me that ddrescue's verdict of 2 errors, 3072 B, which didn't look familiar at first glance, is actually 1024 x 3 = 3072, so these 2 errors are only 3 kb? Do I need to identify (or calculate the position) of these bad blocks? I read something about that. It would be nice if I can get this repaired by some more trustworthy and non-human agent. Can I use badblocks to repair or delete the bad sectors? Bill This is at about 80% check_FAT: Unusual number of reserved sectors 4 (FAT), should be 1. check_FAT: Unusual media descriptor (0xf8!=0xf0) Warning: number of heads/cylinder mismatches 64 (FAT) != 255 (HD) Warning: number of sectors per track mismatches 32 (FAT) != 63 (HD) FAT12 54360 71 48 54361 11 50 12288 [Firmware] check_FAT: can't read FAT boot sector Invalid FAT boot sector 0 D FAT12 354362 221 37 438923 86 30 1358463954 FAT12 354362 221 37 438923 86 30 1358463954 Linux 0 0 1 182400 253 61 2930272000 --------------------------------------------------------------------- To unsubscribe, e-mail: trinity-users-unsubscribe@xxxxxxxxxxxxxxxxxxxxxxxxxx For additional commands, e-mail: trinity-users-help@xxxxxxxxxxxxxxxxxxxxxxxxxx Read list messages on the web archive: http://trinity-users.pearsoncomputing.net/ Please remember not to top-post: http://trinity.pearsoncomputing.net/mailing_lists/#top-posting