Re: Correct way to clear a free space cache file invalid error

[Martin Steigerwald <martin@lichtvoll.de>]

Qu Wenruo - 16.01.23, 11:41:07 CET:
> On 2023/1/16 18:22, Martin Steigerwald wrote:
[…]
> > So what is the correct way to clear that error?
> 
> "btrfs check --clear-space-cache v1 <device>".
> 
> Of course you need to unmount the fs in the first place.
> 
> The clear_cache mount option only clears the old cache of touched bgs.
> If the bg is not touched during the runtime, it won't be modified.
> 
> Or, you can go v2 cache, which would drop the v1 cache at the first
> mount.

Thanks. I went to v2 cache during rebooting by putting the mount options 
for that in /etc/fstab temporarily. This appears to have worked.

Ciao,
-- 
Martin