Hi! grub-efi-amd64 stopped in rescue mode for me as well.
I added a 30 GB mSATA SSD to my system some time ago and yesterday moved my Debian GNU/Linux Sid installation to it. First I tried UEFI which failed like described here. Then MBR also failed until I removed mSATA SSD from BIOS bood order to put it past old Intel SSD 320 (see bug #721016). Unlike reported there, GRUB just dumped me into rescue mode without any error message being displayed. Since the bug report mentioned that it happened after upgrade to 2.00-15 to 2.00-17 I downgraded again using the following packages from snapshot.debian.org: grub2-common_2.00-15_amd64.deb grub-common_2.00-15_amd64.deb grub-efi-amd64_2.00-15_amd64.deb grub-efi-amd64-bin_2.00-15_amd64.deb I reinstalled grub using grub-install --target=x86_64-efi /dev/sdb I also tried with grub-install --target=x86_64-efi --efi-directory=/boot/efi /dev/sdb EFI setup I did along the lines of: http://tanguy.ortolo.eu/blog/article51/debian-efi But "grub-install /dev/sdb" alone didn´t work. It complained something about a missing directory and suggested to use --target or --directory. Which I did in above. Thats probably cause I did install from BIOS mode. My EFI partition is as follows: merkaba:~> find /boot/efi -ls 1 16 drwxr-xr-x 3 root root 16384 Jan 1 1970 /boot/efi 4 4 drwxr-xr-x 4 root root 4096 Aug 26 14:40 /boot/efi/EFI 7 4 drwxr-xr-x 2 root root 4096 Aug 26 14:38 /boot/efi/EFI/debian 9 120 -rwxr-xr-x 1 root root 121856 Aug 26 13:00 /boot/efi/EFI/debian/grubx64.efi 10 4 drwxr-xr-x 2 root root 4096 Aug 26 14:40 /boot/efi/EFI/boot 12 120 -rwxr-xr-x 1 root root 121856 Aug 26 13:00 /boot/efi/EFI/boot/bootx64.efi I copied the boot/bootx64.efi over manually from debian/grubx86.efi. That is with grub 2.00-15. With grub 2.00-17 size was a bit higher. This was to have the firmware boot at least something, until I am able to use efivars and this magic command to tell it to boot the debian entry. This seemed to have worked as I got to GRUB. This is on a ThinkPad T520, with UEFI firmware without Secure Boot. I used GPT partitioning which I converted to MBR now in order to be able to boot this somehow. Basically it was Command (? for help): p Disk /dev/sdb: 58626288 sectors, 28.0 GiB Logical sector size: 512 bytes Disk identifier (GUID): 496603F8-[…] Partition table holds up to 128 entries First usable sector is 34, last usable sector is 58626254 Partitions will be aligned on 2048-sector boundaries Total free space is 15659181 sectors (7.5 GiB) Number Start (sector) End (sector) Size Code Name 1 2048 411647 200.0 MiB EF00 EFI System 2 411648 1026047 300.0 MiB 8300 Linux filesystem 3 1026048 42969087 20.0 GiB 8300 Linux filesystem Now is: merkaba:~> fdisk -l /dev/sdb Disk /dev/sdb: 30.0 GB, 30016659456 bytes 255 heads, 63 sectors/track, 3649 cylinders, total 58626288 sectors Units = sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x00000000 Device Boot Start End Blocks Id System /dev/sdb1 2048 411647 204800 ef EFI (FAT-12/16/32) /dev/sdb2 411648 1026047 307200 83 Linux /dev/sdb3 1026048 42969087 20971520 83 Linux in order to boot via grub-pc. Ciao, -- Martin 'Helios' Steigerwald - http://www.Lichtvoll.de GPG: 03B0 0D6C 0040 0710 4AFA B82F 991B EAAC A599 84C7 -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org