Hi, We are using EFIBootguard bootloader on our SIMATIC IPC 127E/227E machines and found that the Plymouth Splash screen does not work when the system is booting. The required Plymouth packages and themes are installed and configured. This has been validated with the Grub2 bootloader. When we switch to EFIBootguard then we see that instead of graphical Plymouth the text-based grey screen with the text message "System is booting" is displayed. The essential boot arguments are already configured for the current kernel that is booted. Below are some details from the kernel boot log.
Environment: Hardware: SIMATIC IPC-127E BIOS: 27.01.04 Bootloader: EFIBootguard v0.9 Debian version: 11.1 (Bullseye) Kernel: Linux-5.10-cip (RT) EFI log from kernel: [ 0.000000] efi: EFI v2.50 by INSYDE Corp. [ 0.000000] efi: ACPI 2.0=0x7affe014 SMBIOS=0x78757000 SMBIOS 3.0=0x78755000 ESRT=0x78753158 MEMATTR=0x74b07018 RNG=0x7874c018 TPMEventLog=0x6b823018 [ 0.000000] efi: seeding entropy pool [ 0.010328] ACPI: UEFI 0x000000007AFFD000 000236 (v01 SIEMEN SIMATIC 00000001 WAS_ 00040000) [ 0.010344] ACPI: UEFI 0x000000007AFFA000 000042 (v01 SIEMEN SIMATIC 00000002 WAS_ 00040000) [ 0.010509] ACPI: Reserving UEFI table memory at [mem 0x7affd000-0x7affd235] [ 0.010514] ACPI: Reserving UEFI table memory at [mem 0x7affa000-0x7affa041] [ 0.021264] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 7645519600211568 ns [ 0.595269] pci 0000:00:02.0: BAR 2: assigned to efifb [ 0.608320] Registered efivars operations [ 1.949876] efifb: probing for efifb [ 1.949949] efifb: framebuffer at 0x80000000, using 3072k, total 3072k [ 1.949952] efifb: mode is 1024x768x32, linelength=4096, pages=1 [ 1.949954] efifb: scrolling: redraw [ 1.949957] efifb: Truecolor: size=8:8:8:8, shift=24:16:8:0 [ 1.955401] fb0: EFI VGA frame buffer device [ 2.521326] fb0: switching to inteldrmfb from EFI VGA [ 5.724750] pstore: Registered efi as persistent store backend Framebuffer and i915 details: [ 2.521326] fb0: switching to inteldrmfb from EFI VGA [ 2.521596] i915 0000:00:02.0: vgaarb: deactivate vga console [ 2.522471] i915 0000:00:02.0: vgaarb: changed VGA decodes: olddecodes=io+mem,decodes=io+mem:owns=io+mem root@debian:~# root@indos:~# dmesg | grep -i i915 [ 2.521596] i915 0000:00:02.0: vgaarb: deactivate vga console [ 2.522471] i915 0000:00:02.0: vgaarb: changed VGA decodes: olddecodes=io+mem,decodes=io+mem:owns=io+mem [ 2.524685] i915 0000:00:02.0: Direct firmware load for i915/bxt_dmc_ver1_07.bin failed with error -2 [ 2.524694] i915 0000:00:02.0: [drm] Failed to load DMC firmware i915/bxt_dmc_ver1_07.bin. Disabling runtime power management. [ 2.524696] i915 0000:00:02.0: [drm] DMC firmware homepage: https://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git/tree/i915 [ 2.550802] [drm] Initialized i915 1.6.0 20200917 for 0000:00:02.0 on minor 0 [ 2.566294] fbcon: i915drmfb (fb0) is primary device [ 2.615313] i915 0000:00:02.0: [drm] fb0: i915drmfb frame buffer device Kernel boot parameters: root@debian:~# uname -a Linux debian 5.10.83-cip1 #1 SMP Thu Jan 27 01:06:58 UTC 2022 x86_64 GNU/Linux root@debian:~# cat /proc/cmdline root=LABEL=rootfs-part-p1 splash quiet rootwait console=tty1 nohz=off splash plymouth.ignore-serial-consoles quiet Plymouth packages and loaded modules: root@debian:~# dpkg -l | grep -i plymouth ii libplymouth5:amd64 0.9.5-3 amd64 graphical boot animation and logger - shared libraries ii plymouth 0.9.5-3 amd64 boot animation, logger and I/O multiplexer ii plymouth-label 0.9.5-3 amd64 boot animation, logger and I/O multiplexer - label control ii plymouth-themes 0.9.5-3 amd64 boot animation, logger and I/O multiplexer - themes root@debian# i915 2318336 2 drm_kms_helper 278528 1 i915 cec 49152 2 drm_kms_helper,i915 i2c_algo_bit 16384 2 igb,i915 drm 614400 3 drm_kms_helper,i915 video 53248 1 i915 root@debian:~# lsmod | grep -i fb fb_sys_fops 16384 1 drm_kms_helper The same setup works fine when we switch to grub2 bootloader without any changes in system configuration or command-line arguments, we can see graphical Plymouth is shown on the monitor when the target is booting. Observation: With EFIBootguard during the reboot process the graphical Plymouth is seen on the monitor. But not coming up when the target is booting. The splash was tested and found to be working in v0.7, with v0.9 we see this behavior. Any pointers or suggestions to fix the issue would be appreciated. Kindly let us know If we are missing some setup or configuration. Thanks. -- You received this message because you are subscribed to the Google Groups "EFI Boot Guard" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/efibootguard-dev/8a96cb12c1794d3fb8b4f62a4931e8a7%40svr-ies-mbx-02.mgc.mentorg.com.
