Re: Can't add/replace a device on degraded filesystem

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On Thu, 29 Dec 2016 19:27:30 -0500
Rich Gannon <rich@xxxxxxxxxxxxxx> wrote:

> I can mount my filesystem with -o degraded, but I can not do btrfs 
> replace or btrfs device add as the filesystem is in read-only mode, and 
> I can not mount read-write.

You can try my patch which removes that limitation 
https://patchwork.kernel.org/patch/9419189/

Also as Duncan said there's a "more proper" patch to fix this in the works
somewhere, which does a per-chunk check for degraded, and would also allow to
mount the FS read-write in your case.

-- 
With respect,
Roman
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