On Tue, Sep 15, 2015 at 10:59:48PM +0300, Timofey Titovets wrote: > Hi list, > i've catch a io error, caused by csum mismatch > Can i force fs to read data? > This is really not a cool, if only way is use btrfs restore. > > #Info vm machin, after power failure get 2 blocks with errors, and one > mysql table, can't be readed by mysql (and also, i can't just dump it) The data is corrupt, or at the very least deeply untrustworthy. At this point, the easiest thing to do is use dd_rescue or ddrescue on it, which will skip the unreadable sectors and replace them with zeroes -- which is no worse than the random data you're likely to encounter from reading the broken data that the FS is (rightly) protecting you from. Hugo. -- Hugo Mills | A diverse working environment: Di longer you vork hugo@... carfax.org.uk | here, di verse it gets http://carfax.org.uk/ | PGP: E2AB1DE4 |
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