Arch Linux

othersamo_

Member

From: Braislava

Registered: 2020-10-26

Posts: 154

Missing fallback entries

Hello,
In my setup I have Linux Fallback entries. But they were somehow removed from my system. Is it possible to get them back? I use systemd-boot. Here is what I get when I run bootctl list:

 type: Boot Loader Specification Type #1 (.conf)
        title: Arch
           id: arch.conf
       source: /boot//loader/entries/arch.conf (on the EFI System Partition)
        linux: /boot//vmlinuz-linux
       initrd: /boot//amd-ucode.img
               /boot//initramfs-linux.img
      options: root=PARTUUID=380fc1b9-bc84-4b33-b890-824a0345e129 rw quiet rd.udev_log=3 lsm=landlock,lockdown,yama,integrity,apparmor,bpf

         type: Boot Loader Specification Type #1 (.conf)
        title: Arch-LTS-Fallback
           id: arch-lts-fallback.conf
       source: /boot//loader/entries/arch-lts-fallback.conf (on the EFI System Partition)
        linux: /boot//vmlinuz-linux-lts
       initrd: /boot//amd-ucode.img
               /boot//initramfs-linux-lts-fallback.img (No such file or directory)
      options: root=PARTUUID=380fc1b9-bc84-4b33-b890-824a0345e129 rw

Normal linux images exist but the fallback nes were removed for whatever reason. I checked my mkinitcpio preset and the fallback_image was commented. So I removed the comment, re-installed linux package but it did not help:

# mkinitcpio preset file for the 'linux' package

#ALL_config="/etc/mkinitcpio.conf"
ALL_kver="/boot/vmlinuz-linux"
#ALL_kerneldest="/boot/vmlinuz-linux"

PRESETS=('default')
#PRESETS=('default' 'fallback')

#default_config="/etc/mkinitcpio.conf"
default_image="/boot/initramfs-linux.img"
#default_uki="/efi/EFI/Linux/arch-linux.efi"
#default_options="--splash /usr/share/systemd/bootctl/splash-arch.bmp"

#fallback_config="/etc/mkinitcpio.conf"
fallback_image="/boot/initramfs-linux-fallback.img"
#fallback_uki="/efi/EFI/Linux/arch-linux-fallback.efi"
#fallback_options="-S autodetect"

Is there any way I can get those files back?

---

"Why join the navy if you can be a pirate?"
- Steve Jobs

astralc

Member

Registered: 2022-09-17

Posts: 114

Re: Missing fallback entries

PRESETS=(...) in the preset file. the fallback is commented. read the wiki about mkinitcpio.

Fallback generation was disabled by default in the template .preset file recently.

xerxes_

Member

Registered: 2018-04-29

Posts: 986

Re: Missing fallback entries

Comment PRESETS=('default') line and uncomment #PRESETS=('default' 'fallback') line. Then run 'mkinitcpio -P'. Then you may need also run some systemd setup like bootctl or systemd-boot to setup boot image (but I don't know because I don't use systemd-boot).