On 2019/4/4 下午11:27, Nik. wrote:
>
>
> 2019-04-03 03:04, Qu Wenruo:
>>
>
> [snip]
> ...
>
>>>> In your case, you just need latest btrfs-progs and re-run "btrfs check
>>>> --readonly" on it.
>>>
>>> Will try this, but have no time before tomorrow evening.
>>>
>>>
>>>> If it just shows the same result, meaning I can't get the info about
>>>> which tree block is corrupted, then you could try to mount it with
>>>> -o ro
>>>> using *LATEST* kernel.
>>>
>>> I tried this before with the 4.15.0-46 kernel, it was impossible. Will
>>> try again with newer one as soon as possible (in best case tomorrow
>>> evening); I will post the results.
>
> Sorry for the delay, compiling the btrfs-progs took much more time than
> expected (had to install new packages again and again). Finally had to
> give up the conversion ("make" could not find reiserfs/misc.h, although
> both libreiserfscore and reiser4fs are installed).
> Output of the commands:
> # uname -r
> 5.0.6-050006-generic
> #btrfs --version
> btrfs-progs v4.20.2
> # btrfs check --readonly /dev/md0
> Opening filesystem to check...
> incorrect offsets 15003 146075
> ERROR: cannot open file system
>
> It seems that I will wait until 5.2 is out...
> (the answer to Jeff Mahoney is coming with separate e-mail!)OK, then you can try mount it with 5.0 with -o ro. The objective is not to make it work, but to get the dmesg, which should contain the tree block bytenr, so that we can try to fix that offending tree block manually. Thanks, Qu > >>>> Latest kernel will report anything wrong pretty vocally, in that case, >>>> dmesg would include the bytenr of corrupted tree block. >>>> >>>> Then I could craft needed commands to further debug the fs. >>> >>> Ok, I will try to post more info tomorrow about this time. >>> >>> Nik. >>> -- >>> >>>> Thanks, >>>> Qu >>>> >>>>> >>>>> Thank you for trying to improve btrfs! >>>>> >>>>> Nik. >>>>>> >>>>>> Thanks, >>>>>> Qu >>>>> >>>>> You are not from the 007 - lab, are you? ;-) >>>>> >>>>>>> >>>>>>> Kind regards, >>>>>>> >>>>>>> Nik. >>>>>> >>>> >>
signature.asc
Description: OpenPGP digital signature
