Results 1 to 3 of 3

Thread: 9.1: Install grub 2.x for secure boot

  1. #1
    Junior Member registered user
    Join Date
    Sep 2009
    Posts
    21

    9.1: Install grub 2.x for secure boot

    Hello,

    I used the following steps to install grub 2.0 under knoppix 9.1

    Code:
    mkfs.fat -F32 /dev/sdb1
    mount -t vfat /dev/sdb1 /media/sdb1
    apt-get install grub-efi-amd64-signed
    grub-install --boot-directory=/media/sdb1/boot --efi-directory=/media/sdb1 --uefi-secure-boot
    But after boot I got the red sign which alerts that some files are not signed.
    Can you please advise what is missing in my steps ?

    I found the following link:
    http://www.fit-pc.com/wiki/index.php/Linux:_Secure_Boot

    I wonder if I need this complicated procedure with knoppix.

    Thank you,
    Zvika

  2. #2
    Junior Member registered user
    Join Date
    Sep 2009
    Posts
    21
    Hello,

    Thanks to the huge help I got in the grub mail list, grub is now booting under secure boot.

    I had 2 problems:

    1. The shim packages I had are for i386 not amd64. So I installed the right shim packages.

    2. I had to run grub-install under knoppix 9.1 which was booted in secure boot=enable in BIOS.
    Till I did it, I got the following warning:

    Quote:
    grub-install: warning: EFI variables are not supported on this system.

    Thank you,
    Zvika

  3. #3
    Junior Member registered user
    Join Date
    Sep 2009
    Posts
    21
    Hello,

    According to the following link:
    https://www.youtube.com/watch?v=6JhMSKvf6Kw
    The "EFI variables are not supported on this system" can be fixed by running:

    modprobe efivarfs
    mount -t efivarfs efivarfs /sys/firmware/efi/efivars

    According to few links I found, the cause is that Knoppinx (in my case) is booting from USB stick.
    I think (not sure) this is a BUG.

    Thank you,
    Zvika


Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  


Genuine OEM Samsung Galaxy Tab S6 Lite Book Cover -NEW EF-BP610PJEGUJ- #E4 picture

Genuine OEM Samsung Galaxy Tab S6 Lite Book Cover -NEW EF-BP610PJEGUJ- #E4

$10.00



Samsung Galaxy Tab A 32GB -UNLOCKED- 10.4 Screen picture

Samsung Galaxy Tab A 32GB -UNLOCKED- 10.4 Screen

$69.99



Samsung Galaxy Tab A 8

Samsung Galaxy Tab A 8" SM-T387V 32GB Verizon Tablet (No SIM Tray) Grade B

$31.99



Samsung - S Pen Creator Edition - White picture

Samsung - S Pen Creator Edition - White

$38.00



Samsung Galaxy Tab A9+ 11.0

Samsung Galaxy Tab A9+ 11.0" 64GB Gray Wi-Fi Tablet Bundle SM-X210NZAYXAR 2023

$149.99



Samsung 250GB 2.5

Samsung 250GB 2.5" SATA SSD MZ-76E250, Grade A+, SKU 10368

$19.99



Samsung 970 EVO Plus  NVMe M.2  1TB   picture

Samsung 970 EVO Plus NVMe M.2 1TB

$50.00



Samsung Chromebook 3 4GB 16GB SSD 11.6-Inch Laptop  XE500C13-K02US HDMI WIFI picture

Samsung Chromebook 3 4GB 16GB SSD 11.6-Inch Laptop XE500C13-K02US HDMI WIFI

$39.59



Samsung Chromebook XE350XBA-K05US 15.6

Samsung Chromebook XE350XBA-K05US 15.6" 1080p FHD Laptop Intel 4GB RAM 128GB SSD

$89.69



Samsung T9 Portable SSD 4TB, Up to 2,000MB/s, USB 3.2 Gen2, MU-PG4T0B/AM, Black picture

Samsung T9 Portable SSD 4TB, Up to 2,000MB/s, USB 3.2 Gen2, MU-PG4T0B/AM, Black

$285.99