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My BIOS/UEFI stop from "see" the 'EFI System' partition, there's shellx64.efi and a gummiboot installation and when I try to launch the shell only get "Not found" message.
Here's the GPT:
$ sudo 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: 625142448 sectors, 298.1 GiB
Logical sector size: 512 bytes
Disk identifier (GUID): 8700C28A-71B0-416A-971A-DDAD1961D56E
Partition table holds up to 128 entries
First usable sector is 34, last usable sector is 625142414
Partitions will be aligned on 2048-sector boundaries
Total free space is 2669 sectors (1.3 MiB)
Number Start (sector) End (sector) Size Code Name
1 2048 1640447 800.0 MiB EF00 EFI System
2 1640448 78815231 36.8 GiB 0700 Basic data partition
4 111316992 251867135 67.0 GiB 8300 Linux filesystem
5 251867136 253968383 1.0 GiB 8200
6 253968384 625141759 177.0 GiB 0700 Microsoft basic data
7 78815232 111316991 15.5 GiB 8300
File list:
$ ls /mnt/boot/efi
bootx64.efi EFI loader shellx64.efi
This happened after a unsuccessfully fedora's bootloader installation.
Last edited by hotvic (2015-02-23 00:34:34)
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Please post the output of:
# efibootmgr -v
Have you tried chroot'ing into your system and re-installing gummiboot?
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$ sudo efibootmgr -v
BootCurrent: 0003
Timeout: 2 seconds
BootOrder: 0003
Boot0003* UEFI: SanDisk Cruzer Blade 1.26 ACPI(a0341d0,0)PCI(1d,0)USB(1,0)USB(2,0)HD(1,ac,2798,58431388)AMBO
yes, many times, always the process occur without any problem but when to boot it simply doesn't work (I can see in BIOS "Linux boot manager") but it simply doesn't work like the partition doesn't exists.
PS: It's not listed in 'efibootmgr' output because I've cleaned the UEFI variables.
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Try making your own NVRAM entry directly:
# efibootmgr -d /dev/sda -p 1 -c -L "Arch" -l /vmlinuz-linux -u "root=/dev/sda4 rw initrd=/initramfs-inux.img"
Presuming your root partition is on /dev/sda4 -- change that if necessary.
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PS: It's not listed in 'efibootmgr' output because I've cleaned the UEFI variables.
What do you mean by this?
Please post the exact commands you used.
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I had the same problem with a dell computer. I copied off the files in the effi partition and reformatted the partition. it has to be vfat fat32. i copied back the files and it was recognized at boot. I use refind.
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I finally managed out what is the problem.
The problem is that Fedora Installer (anaconda) wrote the MBR code to disk. so the UEFI partition isn't read by BIOS (I think, not sure).
The solution for me was erase the protective-MBR:
# dd if=/dev/zero of=/dev/sda bs=512 count=1
and then fix the GPT:
# gdisk /dev/sda
## just type 'w' and confirm
after that reinstalled the gummiboot and voila
Thanks to all and sorry my very bad english.
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