What do in my custom #BuildRoot and #systemd based image to this error:

[FAILED] Failed to mount EFI System Partition Automount.                                                                     
See 'systemctl status efi.mount' for details.                 
[  OK  ] Finished Update Boot Loader Random Seed.             
tpm_tis MSFT0101:00: 2.0 TPM (device-id 0x1, rev-id 1)        
random: crng init done                                        
[  OK  ] Started Network Name Resolution.                                                                                    
[  OK  ] Reached target Host and Network Name Lookups.                                                                       
         Mounting EFI System Partition Automount...           
         Starting Virtual Console Setup...                    
[FAILED] Failed to mount EFI System Partition Automount.                                                                     
See 'systemctl status efi.mount' for details.                 
[FAILED] Failed to start Automatic Boot Loader Update.        
See 'systemctl status systemd-boot-update.service' for details.

I have no idea what those error messages mean.

The source is here: https://gitlab.com/jarkkojs/linux-tpmdd-test

And here’s the output for the “details”:

# systemctl status systemd-boot-update.service
× systemd-boot-update.service - Automatic Boot Loader Update
     Loaded: loaded (/usr/lib/systemd/system/systemd-boot-update.service; enabled; preset: enabled)
     Active: failed (Result: exit-code) since Wed 2024-06-12 01:50:17 UTC; 2h 58min left
       Docs: man:bootctl(1)
    Process: 87 ExecStart=bootctl --no-variables --graceful update (code=exited, status=1/FAILURE)
   Main PID: 87 (code=exited, status=1/FAILURE)
        CPU: 28ms

Jun 12 01:50:15 tpmdd systemd[1]: Starting Automatic Boot Loader Update...
Jun 12 01:50:17 tpmdd bootctl[87]: Failed to open parent directory of "/efi": No such device
Jun 12 01:50:17 tpmdd systemd[1]: systemd-boot-update.service: Main process exited, code=exited, status=1/FAILURE
Jun 12 01:50:17 tpmdd systemd[1]: systemd-boot-update.service: Failed with result 'exit-code'.
Jun 12 01:50:17 tpmdd systemd[1]: Failed to start Automatic Boot Loader Update.

#linux #kernel #testing

OK probably this is the reason:

# mount /dev/vda1 /boot
mount: /boot: unknown filesystem type 'vfat'.
       dmesg(1) may have more information after failed mount system call.

So the fix would be then:

diff --git a/board/x86_64/linux.config b/board/x86_64/linux.config
index fd088a5..1477d65 100644
--- a/board/x86_64/linux.config
+++ b/board/x86_64/linux.config
@@ -101,6 +101,8 @@ CONFIG_VIRTIO_MMIO_CMDLINE_DEVICES=y
 CONFIG_EXT4_FS=y
 CONFIG_AUTOFS_FS=y
 CONFIG_FUSE_FS=y
+CONFIG_VFAT_FS=y
+CONFIG_FAT_DEFAULT_UTF8=y
 CONFIG_TMPFS_POSIX_ACL=y
 CONFIG_SQUASHFS=y
 CONFIG_TRUSTED_KEYS=y

Well one FAILED less at least ;-)

FAT-fs (vda1): codepage cp437 not found           
[FAILED] Failed to mount EFI System Partition Automount.
See 'systemctl status efi.mount' for details.                                                                                
random: crng init done                                        
[  OK  ] Finished Update Boot Loader Random Seed.                                                                            
[FAILED] Failed to start Automatic Boot Loader Update.                                                                       
See 'systemctl status systemd-boot-update.service' for details.                                                              

Given “codepage cp437 not found” adding: CONFIG_NLS_CODEPAGE_437=y

CONFIG_NLS_ISO8859_1=y

Those took care of remaining errors, now systemd gives zero fails awesome :---)