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




Le 12/04/2017 à 17:14, Richard Owlett a écrit :

Whether initiated after power-on OR a restart the observed sequence is:
1. Appearance of the Grub2 menu with a choice of 4 instances of Debian.
2. Select instance installed on the SD card.
3. Screen clears, this message appears against the Debian 8 background.
   error:  no such device: 380e2a6d-f851-4fd1-9db2-869a0982b511.
   Press any key to continue ...
4. Otherwise the instance of Debian on the SD card boots routinely.

This is a GRUB error message which cannot find the UUID specified in a "search" command.

In order to investigate, can you
- report the menu entry code for the SD card system in /boot/grub/grub.cfg (the one from the system on the hard drive owning GRUB, not the one on the SD card) ; - while the SD card is inserted, in the GRUB menu press "c" to enter a GRUB shell and report the result of the "ls" command.