Re: Newbie question on mdadm

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On Fri, 2020-05-15 at 14:56 -0700, Samuel Sieb wrote:
> On 5/15/20 2:41 PM, Patrick O'Callaghan wrote:
> > On Fri, 2020-05-15 at 22:35 +0100, Patrick O'Callaghan wrote:
> > > > echo check > /sys/block/md127/md/sync_action
> > 
> > That's giving "permission denied" even with sudo, and with setenforce
> > set to 'off'.
> 
> First, is that the right md number?

Yes.

> But also, you can't do that with sudo directly.
> "sudo echo check > /sys/block/md127/md/sync_action" will try opening the 
> "file" with your user permissions which won't work.  It's easier to just 
> do "sudo -i" to become root, then run the command.

Facepalm. Of course.

poc
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