On 25.01.2018 12:35, Mick wrote: > On Thursday, 25 January 2018 10:54:28 GMT Dan Johansson wrote: >> I have bought me a shiny new Supermicro X10DRi-T motherboard with two >> Xenon-E5-2620-v3 CPUs for use as a server. >> >> I have configured the MB for UEFI-mode only and my rescuecd-USB-key >> boots find in UEFI-mode. >> >> Following the Handbook and the "EFI System Partition" handbook I have >> created the following GPT-disklayout: >> >> root@sysresccd /root % parted /dev/sda print >> Model: ATA ST1000DX002-2DV1 (scsi) >> Disk /dev/sda: 1000GB >> Sector size (logical/physical): 512B/4096B >> Partition Table: gpt >> Disk Flags: >> >> Number Start End Size File system Name Flags >> 1 1049kB 3146kB 2097kB fat32 grub bios_grub > > The above implies an MBR partition table approach to booting your OS, which a > non-UEFI (BIOS only) MoBo will need. However you are meant to be using UEFI > *only* and GPT ... > > >> 2 3146kB 137MB 134MB ext2 boot boot, esp > > and this partition is what should be used for an UEFI MoBo, but the fs is > wrong. Change it to fat32 and check with gdisk that its partition code is > EF00, which according to your 'boot, esp' flags it should be. This is your > EFI System Partition (ESP). > > >> 3 137MB 4429MB 4292MB linux-swap(v1) swap >> 4 4429MB 5503MB 1074MB root >> 5 5503MB 1000GB 995GB vg >> >> Partition-1 was created like this: mkfs.fat -F 32 -n efi-boot /dev/sda1 >> Partition-2 was created like this: mkfs.ext2 -T small /dev/sda2 >> >> GRUB_PLATFORMS was set to "efi-64" in make.conf before emerging grub:2 >> >> /boot and /boot/efi is mounted like this >> # mount | grep boot >> /dev/sda2 on /boot type ext2 (rw,relatime,errors=continue,user_xattr,acl) >> /dev/sda1 on /boot/efi type vfat >> (rw,relatime,fmask=0022,dmask=0022,codepage=437,iocharset=ascii,shortname=mi >> xed,errors=remount-ro) >> >> I had to remount /sys/firmware/efi/efivars in rw-mode, otherwise >> grub-install would complain. > > Yes, this has been the case for some time now. You will always need to > remount it as rw before you change the contents of the ESP boot partition. > It > is also mentioned here: > > https://wiki.gentoo.org/wiki/GRUB2 > > >> grub-install was run like this >> "grub-install --target=x86_64-efi --efi-directory=/boot/efi" > > But ... /boot/efi is not your ESP. > > >> And "grub-mkconfig -o /boot/grub/grub.cfg" has been run without any errors. >> >> efibootmgr shows my gentoo as the first entry >> # efibootmgr >> Timeout: 1 seconds >> BootOrder: 0000,0001,0002,0003 >> Boot0000 gentoo >> Boot0001 Hard Drive >> Boot0002 Network Card >> Boot0003 UEFI: Built-in EFI Shell > > Use 'efibootmgr -v' to check the path of the .efi image it tries to boot and > check the path is correct without any typos. What you show above is only a > label. > > >> But when I boot without the USB-key inserted I always "lands" in the >> Built-in EFI Shell - NO sign of GRUB. >> >> Any suggestions where I have gone wrong? >> >> KR > > The ESP needs to be formatted as vfat and the GRUB boot image grubx64.efi > should be installed there.
Thanks for the advice, now grub starts and I get the menu (now I just have to figure out why the kernel hangs after being loaded). And just for reference, my partition-table now looks like this: Number Start End Size File system Name Flags 1 1049kB 137MB 136MB fat32 boot boot, esp 3 137MB 4429MB 4292MB linux-swap(v1) swap 4 4429MB 5503MB 1074MB root 5 5503MB 1000GB 995GB vg KR -- Dan Johansson *************************************************** This message is printed on 100% recycled electrons! ***************************************************
