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Joined: 20 Aug 2006
Posts: 504

PostPosted: Wed Apr 27, 2016 5:31 pm    Post subject: help with UEFI Reply with quote

The configuration is a linux kernel stub on partition 2. I have this configuration working on several other Dell machines. But I haven't been able to get it to work on a Dell 5810. I just recently upgraded the BIOS firmware from A07 to A12.

Every time I try to boot, I get the following.

No bootable devices found.
Press F1 key to retry boot.
Press F2 key to reboot into setup.
Press F5 key to run onboard diagnostics.

Here are the details.

# efibootmgr --version
version 0.12

The disk configuration is as follows:

# gdisk -l /dev/sda
GPT fdisk (gdisk) version 0.8.10

Partition table scan:
  MBR: protective
  BSD: not present
  APM: not present
  GPT: present

Found valid GPT with protective MBR; using GPT.
Disk /dev/sda: 3907029168 sectors, 1.8 TiB
Logical sector size: 512 bytes
Disk identifier (GUID): E570DAEB-7686-43CA-8A69-37E061B09D35
Partition table holds up to 128 entries
First usable sector is 34, last usable sector is 3907029134
Partitions will be aligned on 2048-sector boundaries
Total free space is 4029 sectors (2.0 MiB)

Number  Start (sector)    End (sector)  Size       Code  Name
   1            2048            6143   2.0 MiB     EF02  grub
   2            6144          268287   128.0 MiB   EF00  boot
   3          268288      3907027119   1.8 TiB     0700  rootfs

Though partition 1 exists, it is currently not being used.

The following shows the boot entries reported by the efibootmgr util:

# efibootmgr -v
BootCurrent: 0001
Timeout: 1 seconds
BootOrder: 0000,0001
Boot0000* Gentoo Linux VenHw(99e275e7-75a0-4b37-a2e6-c5385e6c00cb)
Boot0001* UEFI: PLDS DVD+/-RW DH-16AES PciRoot(0x0)/Pci(0x11,0x4)/Sata(0,65535,0)/CDROM(1,0x4c,0x4000)..BO

The Boot0000 entry was created as ...

# efibootmgr -c -p 2 -L "Gentoo Linux" -l "\\efi\\boot\\bootx64.efi"

as well as various combinations.

# mount /dev/sda2 /boot
# tree /boot
|-- EFI
|   `-- Boot
|       `-- bootx64.efi
`-- lost+found

List of block devices ...

# lsblk
sda              8:0    0  1.8T  0 disk
|--sda1           8:1    0    2M  0 part
|--sda2           8:2    0  128M  0 part  /boot
|--sda3           8:3    0  1.8T  0 part
   |--main       252:0    0  1.8T  0 crypt
   |--vg0-swap 252:1    0    1G  0 lvm
   |--vg0-root 252:2    0  100G  0 lvm
   |--vg0-usr  252:3    0  250G  0 lvm
   |--vg0-var  252:4    0  250G  0 lvm
   |--vg0-home 252:5    0 1000G  0 lvm
   |--vg0-opt  252:6    0  250G  0 lvm
   |--vg0-tmp  252:7    0 11.9G  0 lvm
sr0             11:0    1  2.8G  0 rom
loop0            7:0    0  2.6G  1 loop

Any help much appreciated.
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Joined: 07 Jun 2012
Posts: 6227
Location: Room 101

PostPosted: Wed Apr 27, 2016 7:35 pm    Post subject: Re: help with UEFI Reply with quote

Wizumwalt wrote:
  2  6144  268287   128.0 MiB   EF00  boot

|-- EFI
|   `-- Boot
|       `-- bootx64.efi
`-- lost+found

|--sda2   8:2   0  128M  0 part  /boot

Wizumwalt ... your ESP (sda2, EF00) is mounted as /boot and (from the presence of 'lost+found') seems to be ext{2,3,4} rather than fat32.

best ... khay
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