EFI stub ERROR failed to read file, failed to load initrd, efi_stub

EFI stub ERROR failed to read file, failed to load initrd, efi_stub_entry() fail

23 September 2024, 21:13:50

Today I did a

pacman -Syu

and rebooted and I could no longer boot.
My first inclination was to downgrade the kernel, so I looked in my pacman cache and did

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pacman -U linux-zen-6.9.2.zen1-1-x86_64.pkg.tar.zst linux-zen-headers-6.9.2.zen1-1-x86_64.pkg.tar.zst

That didn't work.
I noticed that for a split second during boot this message would flash:

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EFI stub: ERROR: failed to read file
EFI stub: ERROR: failed to load initrd: 0x800000000000000a
EFI stub: ERROR: efi_stub_entry() failed!

I use an EFISTUB to boot and I'm pretty sure I hadn't changed it, but whatever, so I deleted all entries and recreated it, still no luck.
I don't get why it is talking about the initrd, here is what I have in /boot:

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# ls /boot
initfamfs-linux-zen-fallback.img initramfs-linux-zen.img intel-ucode.img vmlinuz-linux-zen

Here are the various boot entries I have tried, none have worked (the difference is the :

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efibootmgr --disk /dev/nvme0n1 --part 1 --create --label "Artix Linux Zen" --loader /vmlinuz-linux-zen --unicode 'cryptdevice=UUID=0290eade-0e29-40a1-bee6-17389bc36e5a:cryptlvm root=/dev/mapper/lvmSystem-root rw initrd=\intel-ucode.img initrd=\initramfs-linux-zen.img' --verbose
efibootmgr --disk /dev/nvme0n1 --part 1 --create --label "Artix Linux Zen" --loader /vmlinuz-linux-zen --unicode 'cryptdevice=UUID=0290eade-0e29-40a1-bee6-17389bc36e5a:cryptlvm root=/dev/lvmSystem/root rw initrd=\intel-ucode.img initrd=\initramfs-linux-zen.img' --verbose
efibootmgr --disk /dev/nvme0n1 --part 1 --create --label "Artix Linux Zen" --loader /vmlinuz-linux-zen --unicode 'cryptdevice=UUID=0290eade-0e29-40a1-bee6-17389bc36e5a:cryptlvm root=UUID=8dc0b7d3-d326-4c78-b13a-411b628750fd rw initrd=\intel-ucode.img initrd=\initramfs-linux-zen.img' --verbose

Just to be clear, to try to fix all this I am booting into live iso and running the following:

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cryptsetup luksOpen /dev/nvme0n1p2 cryptlvm
vgchange -ay
mount /dev/mapper/lvmSystem-root /mnt
mount /dev/nvme0n1p1 /mnt/boot
artix-chroot /mnt

and then I mess around.
The output of lsblk:

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# lsblk -o NAME,FSTYPE,LABEL,UUID,MOUNTPOINTS,PARTUUID # just the drives I'm working with
NAME                 FSTYPE      LABEL UUID                                   MOUNTPOINTS PARTUUID
nvme0n1                                                                                   
|-nvme0n1p1          vfat              CD98-8606                              /boot       cd126f1e-2316-4471-9cc9-ea5ebe82ebdb
`-nvme0n1p2          crypto_LUKS       0290eade-0e29-40a1-bee6-17389bc36e5a               b291cb9e-ffda-43c3-8606-aac558672ee8
  `-cryptlvm         LVM2_member       G8SpbS-eHT1-sdPi-SVk3-uNfC-3phl-g290nH             
    |-lvmSystem-swap swap              20de1d03-c4c6-4b29-a46a-f2a894e3eb7b               
    `-lvmSystem-root ext4              8dc0b7d3-d326-4c78-b13a-411b628750fd   /

Here's the relevant variables in /etc/mkinitcpio.conf

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MODULES=(ext4)
HOOKS=(base udev autodetect modconf kms keyboard keymap consolefont block encrypt lvm2 filesystems fsck)
COMPRESSION="cat"

and lastly my /etc/fastab

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# /dev/mapper/lvmSystem-root
UUID=8dc0b7d3-d326-4c78-b13a-411b628750fd    /    ext4    rw,relatime    0 1
# /dev/nvme0n1p1
UUID=CD98-8606    /boot    vfat    rw,relatime,fmask=0022,dmask=0022,codepage=437,iocharset=ascii,shortname=mixed,utf8,errors=remount-ro    0 2

I'm not sure what is going on anymore.
I was more familiar with all this when I first set it up years ago but I admit I am a little fuzzy on it now, any help would be appreciated.

Re: EFI stub ERROR failed to read file, failed to load initrd, efi_stub_entry() fail

Reply #1 – 05 November 2024, 02:29:59

Is there anything else I should be checking?

Re: EFI stub ERROR failed to read file, failed to load initrd, efi_stub_entry() fail

Reply #2 – 05 November 2024, 15:52:17

maybe your EFI installation is broken and needs to be redone ?

your mkinitcpio.conf looks good, even with luks encryption, i have pretty much the same.

what does "efibootmgr -v" tell you ?

also, in your /boot partition, there should be an "EFI" folder".
try to create it.
(i have the same partition type. a /boot in fat32, which contains the boot files and the EFI, then a 2nd luks encrypted partition)

and to make the EFI part normal again, you can try that (that's what i would do

)
boot on a usb key, mount your partitions, proc/sys/dev, (just like you said you did), then let grub do the work for you

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grub-install --target=x86_64-efi --efi-directory=/boot
grub-mkconfig -o /boot/grub/grub.cfg

then exit the chroot, unmount everything, reboot and cross your fingers

Re: EFI stub ERROR failed to read file, failed to load initrd, efi_stub_entry() fail

Reply #3 – Yesterday at 01:16:15

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efibootmgr -v

Output:

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BootCurrent: 0001
Timeout: 1 seconds
BootOrder: 0000,0001
Boot0000* Artix Linux Zen        HD(1,GPT,cd126f1e-2316-4471-9cc9-ea5ebe82ebdb,0x800,0xff800)/\vmlinuz-linux-zenSOME_LONG_HEX_STRING
// ommitting the rest

Okay I did not have a /boot/EFI directory.....strange.
I should have mentioned that I never used grub and never installed it. I use an EFI stub.
If at all possible I would like to NOT use grub, not only because it will make my boot every so slightly longer, but because I have no idea how to set it up with luks and lvm and all that.

Re: EFI stub ERROR failed to read file, failed to load initrd, efi_stub_entry() fail

Reply #4 – Yesterday at 02:25:24

ok, i figured out that you dont use grub.
(which explains why you dont have an EFI directory)
you efibootmgr seems correct.

try the most simple one first, maybe in a script to be easier to use

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efibootmgr -d /dev/nvme0n1 -p 1 -c -L "Artix Linux Zen" -l /vmlinuz-linux-zen -u "cryptdevice=UUID=${UUID}:${luksName} root=/dev/mapper/${vgname}-${lvName} rw initrd=/initramfs-linux-zen.img"

where
$UUID is the uuid of you 2nd partition (the luks one)
$luksName is is the name of your luks device
$vgName is the name of your VG
$lvName is the name of your LV rootfs

(so maybe the problem is the "intel-ucode" part ?)

Re: EFI stub ERROR failed to read file, failed to load initrd, efi_stub_entry() fail

Reply #5 – Yesterday at 11:58:15

btw, maybe you can use something like this to make it easy

https://github.com/eaut/efistub
(i've tried it in an arch vm, works great)