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Re: Possibly erroneous "device not present" message during boot

On 04/14/2017 12:33 PM, Brian wrote:
On Thu 13 Apr 2017 at 10:58:10 -0500, Richard Owlett wrote:

On 04/12/2017 01:49 PM, songbird wrote:

 another thing you can do is construct your own
menu entry and put it in /etc/grub.d/40_custom file

I don't see that being informative for this problem.

Quite the opposite; this is a very useful suggestion. Imagine that
update-grub didn't give you something workable. You would (or should)
be glad of the opportunity to roll your own. I do it all the time with
removable devices.

In your case, if grub-install had given you a "root=" line in a stanza
it is possible you would not be booting the SD card. A 40_custom file
needn't have it in.

I'll add it to my TODO list.
I've never attempted to edit /etc/grub.d/40_custom file or its cousins.
I've just received some need documentation for something I'm doing for someone else.
Anyone have a few spare 100 hour days ;/