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How to get an inactive RAID device working again?

Fresh5 days ago
Mar 15, 2026233446 views
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Problem

After booting, my RAID1 device ( *) sometimes goes in some funny state and I cannot mount it. * Originally I created but it has somehow changed itself into . The RAID device appears to be inactive somehow: Question is, how to make the device active again (using , I presume)? (Other times it's alrig…

Error Output

# mount /opt
mount: wrong fs type, bad option, bad superblock on /dev/md_d0,
       missing codepage or helper program, or other error
       (could …

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