On 04/22/2017 06:47 AM, Brian wrote:
On Wed 19 Apr 2017 at 15:16:52 -0500, Richard Owlett wrote:

On 04/19/2017 02:31 PM, Brian wrote:

As I have detailed elsewhere,

https://lists.debian.org/debian-user/2017/04/msg00578.html

the card becomes visible to GRUB with its nativedisk command. The OP has
a reader which does not show an SD disk in GRUB and does not boot from
it. Perhaps he could take some time to see whether this command does
anything for him.

I just received my USB SD card reader this afternoon. Attempting to
reproduce the results of your ...msg00578 is on my TODO list. I'll not have
time for Debian until Monday. I did have the opportunity to do a quickie

Thanks for considering testing. However, it is likely not to work for
you because your 5-in-1 appparently is a Ricoh reader on the PCI bus.
You can check this with 'lspci'. Failure is also indicated by the
presence of 'root=/dev/mmcblk0p1' in your grub.cfg. AFAICT, GRUB does
not have modules for SD/MMC devices, so nativedisk would have nothing
to load to drive the device.


Monday came early - IOW the project I was working on collapsed and I needed a break.

I attempted to run the tests you described in Paragraph 4 of .../msg00578.html.
My notes are:


with no usb devices present, I get

(ahci) (ahci0,msdosXX) (ahci1)

where XX maches the partions on my "hard disk" {it is actually a
solid state drive which was manufactured to be a plugin replacement
for original mechanical dive (aka 'spinning rust'}.

I don't know what (ahci1) is.



Repeating above with empty card reader I get:

(ahci) (ahci0,msdosXX) (usb0a) (usb0b) (ahci1)



I repeated the above with the SD card plugged into a USB card reader
getting:

(ahci) (ahci0,msdosXX) (usb0a) (usb0a,msdos1) (usb0b) (ahci1)



When not using "nativedisk" in the second case I get:

(hd0) (hd0,msdosXX) (hd1) (hd1,msdos1)


I'll not attempt "Edit /etc/grub.d/40_custom to have ..."



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