On Sat 15 Apr 2017 at 19:57:32 (+0100), Brian wrote: > On Sat 15 Apr 2017 at 13:08:30 -0500, Richard Owlett wrote: > > > On 04/15/2017 12:24 PM, Brian wrote: > > > > > >Did you overlook this question? You have said your machine does not > > >offer booting from an SD card. Your answer will be interesting. > > > > Thought I'd answered it elsewhere. > > Nope. There has been no mention of booting *directly* *from* the SD card > until this subthread. > > > It's on the menu that exists due to the grub on MBR of /dev/sda . > > So - the card is in its slot on your machine. You do 'update-grub'. > There is now an entry in GRUB's menu. That is fine. This is what you are > booting from? Your grub.cfg looks similar to what you posted before? > > If GRUB has been installed to the MBR of the SD card it has absolutely > no bearing on the existence of the entry in GRUB's menu. It may as well > not be there when GRUB on the MBR of /dev/sda constructs its grub.cfg. > > > There is an fschk error of some sort that flies by too fast. > > Otherwise, runs from SD card. > > I like "simple"; I'm lost.
One can avoid all this messing about with Grub by just copying a netinst ISO onto the SD card instead of a USB stick. But then you need, as I've pointed out just now, to insert the SD card into the slot _before_ booting, _and_ entering the CMOS Setup Menu to make sure the device has highest booting priority. (This is irrespective of how you wrote the SD card.) Cheers, David.