[ale] odd device stuff

[Jim Kinney]

I cheated and reinstalled. The box had already fallen dead once. I
spent an hour+ chasing ghosts and cut my losses.

As I grep'ed through the kernel changelog I don't recall udev changes.

On Tue, 2018-03-20 at 14:54 -0400, Phil Turmel via Ale wrote:
> On 03/20/2018 12:30 PM, Jim Kinney via Ale wrote:
> 
> > All the /dev/sda1,2,3 partitions vanish in /dev. The mounts work
> > with
> > UUID. partprobe creates all the appropriate devices again.
> > 
> > Choose the older kernel (newest is kernel-3.10.0-
> > 693.21.1.el7.x86_64.
> > Older is kernel-3.10.0-693.5.2.el7.x86_64). Same scenario.
> 
> Sounds like an udev rule changed, causing the initial device to be
> created in /dev/disk/ or similar instead of /dev/.
> 
> > Other systems running older kernel only do not show this behavior.
> > Multipathd?
> 
> Hmm. Possible.  If multipath picks up a device first, it won't get
> processed the regular way.  I've disabled multipath before for this
> reason. (Blacklisted the module -- if you actually need it, you'll
> have
> to dig into its conf files.)
> 
> > pvcreate wants a /dev/sdXN device which don't actually work.
> > Ideas??
> 
> pvcreate should be happy with /dev/disk/* link and will generally
> then
> work no matter where or what name that device gets in the future.
> 
> Phil
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-- 
James P. Kinney III

Every time you stop a school, you will have to build a jail. What you
gain at one end you lose at the other. It's like feeding a dog on his
own tail. It won't fatten the dog.
- Speech 11/23/1900 Mark Twain

http://heretothereideas.blogspot.com/
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