Re: filesystem dead, xfs_repair won't help

[Emmanuel Florac <eflorac@intellique.com>]

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Le Tue, 11 Apr 2017 10:46:07 +0300
Avi Kivity <avi@scylladb.com> écrivait:

> $ sudo xfs_repair /dev/nvme0n1
> Phase 1 - find and verify superblock...
> couldn't verify primary superblock - not enough secondary superblocks 
> with matching geometry !!!

Which version of xfs_repair is this?

Try to export the FS structure with xfs_metadump, something like

xfs_metadump /dev/nvme0n1 /some/file.dmp

And check the errors it reports, they may be informative. 

In the case where metadump works out fine, you should then try to have a
look at the FS structure using the dump (to avoid wrecking it more that
it already is):

xfs_db -c "sb 0" /some/file.dmp

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