Rt bore lto -- not working

Hi CachyOS Team.
The rt bore lto (v3)
and rt bore

is not working.
after 6.8 towards up during compilation it throws an error all though over all compilation finishes when booting up its getting stuck during the initialization process after bios and grub is functional rt related kernal gets stuck.

rt bore lto works best for max rt performance without degradation flawlessly
now its not working …
FIX.

Would be nice to know some specifics like system specs or anything else other than “fix” when nothing is actually broken.

#SYSTEM DETAILS::
  ~  22:05:24
❯ hyfetch
k@cachyos-x8664
.-------------------------: ---------------
.+=========================. OS: CachyOS x86_64
:++===++==================- :+± Host: Blade 18 - RZ09-0509 10.04
:++====+++++=============- .==: Kernel: 6.12.1-1-cachyos-bore-lto
-
+++=====+++==========: Uptime: 2 mins
=
++++========------------: Packages: 41 (pip), 6 (npm), 1211 (pacman), 10 (brew), 12 (flatpak-system)
=
+++++=====- … Shell: zsh 5.9
.+
+++++=-===: .=+++=: Editor: NVIM v0.10.2
:++++=====-==: -+ Resolution: 2560x1600
:++========-=. .=+
+. DE: Plasma 6.2.3 [KF 6.8.0] [Qt 6.8.0] (wayland)
.+==========-. . WM: kwin_wayland_wr
:+++++++====- .–==-. Theme: Breeze-Dark [GTK2/3]
:++==========. :+++++++: Icons: breeze-dark [GTK2/3]
.-===========. =
+*+ Cursor: breeze_cursors [GTK2/3]
.-===========: .+
+: Terminal: tilix
-=======++++:::::::::::::::::::::::::-: .—: CPU: Intel i9-14900HX (32) @ 5.6GHz
:======++++====+++
*************=. GPU: Intel Raptor Lake-S UHD Graphics
:=====+++==========++++++++++++++
- GPU: NVIDIA GeForce RTX 4090 Laptop GPU
.====++==============++++++++++
- Memory: 8.72 GiB / 30.97 GiB (28%)
.===+==================+++++++: Network: 1 Gbps
.-=======================+++: BIOS: Razer 1.0 (03/11/2024)

#BUILD LOG::
resolving dependencies…
looking for conflicting packages…

Package (6) New Version Net Change

cachyos-v3/linux-cachyos-rt-bore 6.12.1-1 141.25 MiB
cachyos-v3/linux-cachyos-rt-bore-headers 6.12.1-1 139.63 MiB
cachyos-v3/linux-cachyos-rt-bore-lto 6.12.1-1 139.55 MiB
cachyos-v3/linux-cachyos-rt-bore-lto-headers 6.12.1-1 138.38 MiB
cachyos-v3/linux-cachyos-rt-bore-lto-nvidia-open 6.12.1-1 16.74 MiB
cachyos-v3/linux-cachyos-rt-bore-nvidia-open 6.12.1-1 20.38 MiB

Total Installed Size: 595.92 MiB

:: Proceed with installation? [Y/n] y
(6/6) checking keys in keyring [--------------------------------] 100%
(6/6) checking package integrity [--------------------------------] 100%
(6/6) loading package files [--------------------------------] 100%
(6/6) checking for file conflicts [--------------------------------] 100%
:: Processing package changes…
(1/6) installing linux-cachyos-rt-bore [--------------------------------] 100%
Optional dependencies for linux-cachyos-rt-bore
wireless-regdb: to set the correct wireless channels of your country
linux-firmware: firmware images needed for some devices [installed]
modprobed-db: Keeps track of EVERY kernel module that has ever been probed - useful for those of
us who make localmodconfig
scx-scheds: to use sched-ext schedulers [installed]
(2/6) installing linux-cachyos-rt-bore-nvidia-open [--------------------------------] 100%
(3/6) installing linux-cachyos-rt-bore-headers [--------------------------------] 100%
(4/6) installing linux-cachyos-rt-bore-lto [--------------------------------] 100%
Optional dependencies for linux-cachyos-rt-bore-lto
wireless-regdb: to set the correct wireless channels of your country
linux-firmware: firmware images needed for some devices [installed]
modprobed-db: Keeps track of EVERY kernel module that has ever been probed - useful for those of
us who make localmodconfig
scx-scheds: to use sched-ext schedulers [installed]
(5/6) installing linux-cachyos-rt-bore-lto-nvidia-open [--------------------------------] 100%
(6/6) installing linux-cachyos-rt-bore-lto-headers [--------------------------------] 100%
:: Running post-transaction hooks…
(1/5) Arming ConditionNeedsUpdate…
(2/5) Updating module dependencies…
(3/5) Updating linux initcpios…
==> Building image from preset: /etc/mkinitcpio.d/linux-cachyos-rt-bore-lto.preset: ‘default’
==> Using default configuration file: ‘/etc/mkinitcpio.conf’
→ -k /boot/vmlinuz-linux-cachyos-rt-bore-lto -g /boot/initramfs-linux-cachyos-rt-bore-lto.img
==> Using drop-in configuration file: ‘10-chwd.conf’
==> Starting build: ‘6.12.1-1-cachyos-rt-bore-lto’
→ Running build hook: [base]
→ Running build hook: [udev]
→ Running build hook: [autodetect]
→ Running build hook: [microcode]
→ Running build hook: [kms]
→ Running build hook: [modconf]
→ Running build hook: [block]
→ Running build hook: [keyboard]
→ Running build hook: [keymap]
→ Running build hook: [consolefont]
==> WARNING: consolefont: no font found in configuration
→ Running build hook: [plymouth]
→ Running build hook: [filesystems]
→ Running build hook: [fsck]
==> Generating module dependencies
==> Creating zstd-compressed initcpio image: ‘/boot/initramfs-linux-cachyos-rt-bore-lto.img’
→ Early uncompressed CPIO image generation successful
==> Initcpio image generation successful
==> Building image from preset: /etc/mkinitcpio.d/linux-cachyos-rt-bore-lto.preset: ‘fallback’
==> Using default configuration file: ‘/etc/mkinitcpio.conf’
→ -k /boot/vmlinuz-linux-cachyos-rt-bore-lto -g /boot/initramfs-linux-cachyos-rt-bore-lto-fallback.img -S autodetect
==> Using drop-in configuration file: ‘10-chwd.conf’
==> Starting build: ‘6.12.1-1-cachyos-rt-bore-lto’
→ Running build hook: [base]
→ Running build hook: [udev]
→ Running build hook: [microcode]
→ Running build hook: [kms]
==> WARNING: Possibly missing firmware for module: ‘ast’
→ Running build hook: [modconf]
→ Running build hook: [block]
==> WARNING: Possibly missing firmware for module: ‘aic94xx’
==> WARNING: Possibly missing firmware for module: ‘bfa’
==> WARNING: Possibly missing firmware for module: ‘qed’
==> WARNING: Possibly missing firmware for module: ‘qla1280’
==> WARNING: Possibly missing firmware for module: ‘qla2xxx’
==> WARNING: Possibly missing firmware for module: ‘wd719x’
==> WARNING: Possibly missing firmware for module: ‘xhci_pci_renesas’
→ Running build hook: [keyboard]
→ Running build hook: [keymap]
→ Running build hook: [consolefont]
==> WARNING: consolefont: no font found in configuration
→ Running build hook: [plymouth]
→ Running build hook: [filesystems]
→ Running build hook: [fsck]
==> Generating module dependencies
==> Creating zstd-compressed initcpio image: ‘/boot/initramfs-linux-cachyos-rt-bore-lto-fallback.img’
→ Early uncompressed CPIO image generation successful
==> Initcpio image generation successful
==> Building image from preset: /etc/mkinitcpio.d/linux-cachyos-rt-bore.preset: ‘default’
==> Using default configuration file: ‘/etc/mkinitcpio.conf’
→ -k /boot/vmlinuz-linux-cachyos-rt-bore -g /boot/initramfs-linux-cachyos-rt-bore.img
==> Using drop-in configuration file: ‘10-chwd.conf’
==> Starting build: ‘6.12.1-1-cachyos-rt-bore’
→ Running build hook: [base]
→ Running build hook: [udev]
→ Running build hook: [autodetect]
→ Running build hook: [microcode]
→ Running build hook: [kms]
→ Running build hook: [modconf]
→ Running build hook: [block]
→ Running build hook: [keyboard]
→ Running build hook: [keymap]
→ Running build hook: [consolefont]
==> WARNING: consolefont: no font found in configuration
→ Running build hook: [plymouth]
→ Running build hook: [filesystems]
→ Running build hook: [fsck]
==> Generating module dependencies
==> Creating zstd-compressed initcpio image: ‘/boot/initramfs-linux-cachyos-rt-bore.img’
→ Early uncompressed CPIO image generation successful
==> Initcpio image generation successful
==> Building image from preset: /etc/mkinitcpio.d/linux-cachyos-rt-bore.preset: ‘fallback’
==> Using default configuration file: ‘/etc/mkinitcpio.conf’
→ -k /boot/vmlinuz-linux-cachyos-rt-bore -g /boot/initramfs-linux-cachyos-rt-bore-fallback.img -S autodetect
==> Using drop-in configuration file: ‘10-chwd.conf’
==> Starting build: ‘6.12.1-1-cachyos-rt-bore’
→ Running build hook: [base]
→ Running build hook: [udev]
→ Running build hook: [microcode]
→ Running build hook: [kms]
==> WARNING: Possibly missing firmware for module: ‘ast’
→ Running build hook: [modconf]
→ Running build hook: [block]
==> WARNING: Possibly missing firmware for module: ‘aic94xx’
==> WARNING: Possibly missing firmware for module: ‘bfa’
==> WARNING: Possibly missing firmware for module: ‘qed’
==> WARNING: Possibly missing firmware for module: ‘qla1280’
==> WARNING: Possibly missing firmware for module: ‘qla2xxx’
==> WARNING: Possibly missing firmware for module: ‘wd719x’
==> WARNING: Possibly missing firmware for module: ‘xhci_pci_renesas’
→ Running build hook: [keyboard]
→ Running build hook: [keymap]
→ Running build hook: [consolefont]
==> WARNING: consolefont: no font found in configuration
→ Running build hook: [plymouth]
→ Running build hook: [filesystems]
→ Running build hook: [fsck]
==> Generating module dependencies
==> Creating zstd-compressed initcpio image: ‘/boot/initramfs-linux-cachyos-rt-bore-fallback.img’
→ Early uncompressed CPIO image generation successful
==> Initcpio image generation successful
(4/5) Update Nvidia module in initcpio (for DRM KMS)
==> Building image from preset: /etc/mkinitcpio.d/linux-cachyos-bore-lto.preset: ‘default’
==> Using default configuration file: ‘/etc/mkinitcpio.conf’
→ -k /boot/vmlinuz-linux-cachyos-bore-lto -g /boot/initramfs-linux-cachyos-bore-lto.img
==> Using drop-in configuration file: ‘10-chwd.conf’
==> Starting build: ‘6.12.1-1-cachyos-bore-lto’
→ Running build hook: [base]
→ Running build hook: [udev]
→ Running build hook: [autodetect]
→ Running build hook: [microcode]
→ Running build hook: [kms]
→ Running build hook: [modconf]
→ Running build hook: [block]
→ Running build hook: [keyboard]
→ Running build hook: [keymap]
→ Running build hook: [consolefont]
==> WARNING: consolefont: no font found in configuration
→ Running build hook: [plymouth]
→ Running build hook: [filesystems]
→ Running build hook: [fsck]
==> Generating module dependencies
==> Creating zstd-compressed initcpio image: ‘/boot/initramfs-linux-cachyos-bore-lto.img’
→ Early uncompressed CPIO image generation successful
==> Initcpio image generation successful
==> Building image from preset: /etc/mkinitcpio.d/linux-cachyos-bore-lto.preset: ‘fallback’
==> Using default configuration file: ‘/etc/mkinitcpio.conf’
→ -k /boot/vmlinuz-linux-cachyos-bore-lto -g /boot/initramfs-linux-cachyos-bore-lto-fallback.img -S autodetect
==> Using drop-in configuration file: ‘10-chwd.conf’
==> Starting build: ‘6.12.1-1-cachyos-bore-lto’
→ Running build hook: [base]
→ Running build hook: [udev]
→ Running build hook: [microcode]
→ Running build hook: [kms]
==> WARNING: Possibly missing firmware for module: ‘ast’
→ Running build hook: [modconf]
→ Running build hook: [block]
==> WARNING: Possibly missing firmware for module: ‘aic94xx’
==> WARNING: Possibly missing firmware for module: ‘bfa’
==> WARNING: Possibly missing firmware for module: ‘qed’
==> WARNING: Possibly missing firmware for module: ‘qla1280’
==> WARNING: Possibly missing firmware for module: ‘qla2xxx’
==> WARNING: Possibly missing firmware for module: ‘wd719x’
==> WARNING: Possibly missing firmware for module: ‘xhci_pci_renesas’
→ Running build hook: [keyboard]
→ Running build hook: [keymap]
→ Running build hook: [consolefont]
==> WARNING: consolefont: no font found in configuration
→ Running build hook: [plymouth]
→ Running build hook: [filesystems]
→ Running build hook: [fsck]
==> Generating module dependencies
==> Creating zstd-compressed initcpio image: ‘/boot/initramfs-linux-cachyos-bore-lto-fallback.img’
→ Early uncompressed CPIO image generation successful
==> Initcpio image generation successful
==> Building image from preset: /etc/mkinitcpio.d/linux-cachyos-bore.preset: ‘default’
==> Using default configuration file: ‘/etc/mkinitcpio.conf’
→ -k /boot/vmlinuz-linux-cachyos-bore -g /boot/initramfs-linux-cachyos-bore.img
==> Using drop-in configuration file: ‘10-chwd.conf’
==> Starting build: ‘6.12.1-1-cachyos-bore’
→ Running build hook: [base]
→ Running build hook: [udev]
→ Running build hook: [autodetect]
→ Running build hook: [microcode]
→ Running build hook: [kms]
→ Running build hook: [modconf]
→ Running build hook: [block]
→ Running build hook: [keyboard]
→ Running build hook: [keymap]
→ Running build hook: [consolefont]
==> WARNING: consolefont: no font found in configuration
→ Running build hook: [plymouth]
→ Running build hook: [filesystems]
→ Running build hook: [fsck]
==> Generating module dependencies
==> Creating zstd-compressed initcpio image: ‘/boot/initramfs-linux-cachyos-bore.img’
→ Early uncompressed CPIO image generation successful
==> Initcpio image generation successful
==> Building image from preset: /etc/mkinitcpio.d/linux-cachyos-bore.preset: ‘fallback’
==> Using default configuration file: ‘/etc/mkinitcpio.conf’
→ -k /boot/vmlinuz-linux-cachyos-bore -g /boot/initramfs-linux-cachyos-bore-fallback.img -S autodetect
==> Using drop-in configuration file: ‘10-chwd.conf’
==> Starting build: ‘6.12.1-1-cachyos-bore’
→ Running build hook: [base]
→ Running build hook: [udev]
→ Running build hook: [microcode]
→ Running build hook: [kms]
==> WARNING: Possibly missing firmware for module: ‘ast’
→ Running build hook: [modconf]
→ Running build hook: [block]
==> WARNING: Possibly missing firmware for module: ‘aic94xx’
==> WARNING: Possibly missing firmware for module: ‘bfa’
==> WARNING: Possibly missing firmware for module: ‘qed’
==> WARNING: Possibly missing firmware for module: ‘qla1280’
==> WARNING: Possibly missing firmware for module: ‘qla2xxx’
==> WARNING: Possibly missing firmware for module: ‘wd719x’
==> WARNING: Possibly missing firmware for module: ‘xhci_pci_renesas’
→ Running build hook: [keyboard]
→ Running build hook: [keymap]
→ Running build hook: [consolefont]
==> WARNING: consolefont: no font found in configuration
→ Running build hook: [plymouth]
→ Running build hook: [filesystems]
→ Running build hook: [fsck]
==> Generating module dependencies
==> Creating zstd-compressed initcpio image: ‘/boot/initramfs-linux-cachyos-bore-fallback.img’
→ Early uncompressed CPIO image generation successful
==> Initcpio image generation successful
==> Building image from preset: /etc/mkinitcpio.d/linux-cachyos.preset: ‘default’
==> Using default configuration file: ‘/etc/mkinitcpio.conf’
→ -k /boot/vmlinuz-linux-cachyos -g /boot/initramfs-linux-cachyos.img
==> Using drop-in configuration file: ‘10-chwd.conf’
==> Starting build: ‘6.12.1-2-cachyos’
→ Running build hook: [base]
→ Running build hook: [udev]
→ Running build hook: [autodetect]
→ Running build hook: [microcode]
→ Running build hook: [kms]
→ Running build hook: [modconf]
→ Running build hook: [block]
→ Running build hook: [keyboard]
→ Running build hook: [keymap]
→ Running build hook: [consolefont]
==> WARNING: consolefont: no font found in configuration
→ Running build hook: [plymouth]
→ Running build hook: [filesystems]
→ Running build hook: [fsck]
==> Generating module dependencies
==> Creating zstd-compressed initcpio image: ‘/boot/initramfs-linux-cachyos.img’
→ Early uncompressed CPIO image generation successful
==> Initcpio image generation successful
==> Building image from preset: /etc/mkinitcpio.d/linux-cachyos.preset: ‘fallback’
==> Using default configuration file: ‘/etc/mkinitcpio.conf’
→ -k /boot/vmlinuz-linux-cachyos -g /boot/initramfs-linux-cachyos-fallback.img -S autodetect
==> Using drop-in configuration file: ‘10-chwd.conf’
==> Starting build: ‘6.12.1-2-cachyos’
→ Running build hook: [base]
→ Running build hook: [udev]
→ Running build hook: [microcode]
→ Running build hook: [kms]
==> WARNING: Possibly missing firmware for module: ‘ast’
→ Running build hook: [modconf]
→ Running build hook: [block]
==> WARNING: Possibly missing firmware for module: ‘aic94xx’
==> WARNING: Possibly missing firmware for module: ‘bfa’
==> WARNING: Possibly missing firmware for module: ‘qed’
==> WARNING: Possibly missing firmware for module: ‘qla1280’
==> WARNING: Possibly missing firmware for module: ‘qla2xxx’
==> WARNING: Possibly missing firmware for module: ‘wd719x’
==> WARNING: Possibly missing firmware for module: ‘xhci_pci_renesas’
→ Running build hook: [keyboard]
→ Running build hook: [keymap]
→ Running build hook: [consolefont]
==> WARNING: consolefont: no font found in configuration
→ Running build hook: [plymouth]
→ Running build hook: [filesystems]
→ Running build hook: [fsck]
==> Generating module dependencies
==> Creating zstd-compressed initcpio image: ‘/boot/initramfs-linux-cachyos-fallback.img’
→ Early uncompressed CPIO image generation successful
==> Initcpio image generation successful
==> Building image from preset: /etc/mkinitcpio.d/linux-cachyos-rt-bore-lto.preset: ‘default’
==> Using default configuration file: ‘/etc/mkinitcpio.conf’
→ -k /boot/vmlinuz-linux-cachyos-rt-bore-lto -g /boot/initramfs-linux-cachyos-rt-bore-lto.img
==> Using drop-in configuration file: ‘10-chwd.conf’
==> Starting build: ‘6.12.1-1-cachyos-rt-bore-lto’
→ Running build hook: [base]
→ Running build hook: [udev]
→ Running build hook: [autodetect]
→ Running build hook: [microcode]
→ Running build hook: [kms]
→ Running build hook: [modconf]
→ Running build hook: [block]
→ Running build hook: [keyboard]
→ Running build hook: [keymap]
→ Running build hook: [consolefont]
==> WARNING: consolefont: no font found in configuration
→ Running build hook: [plymouth]
→ Running build hook: [filesystems]
→ Running build hook: [fsck]
==> Generating module dependencies
==> Creating zstd-compressed initcpio image: ‘/boot/initramfs-linux-cachyos-rt-bore-lto.img’
→ Early uncompressed CPIO image generation successful
==> Initcpio image generation successful
==> Building image from preset: /etc/mkinitcpio.d/linux-cachyos-rt-bore-lto.preset: ‘fallback’
==> Using default configuration file: ‘/etc/mkinitcpio.conf’
→ -k /boot/vmlinuz-linux-cachyos-rt-bore-lto -g /boot/initramfs-linux-cachyos-rt-bore-lto-fallback.img -S autodetect
==> Using drop-in configuration file: ‘10-chwd.conf’
==> Starting build: ‘6.12.1-1-cachyos-rt-bore-lto’
→ Running build hook: [base]
→ Running build hook: [udev]
→ Running build hook: [microcode]
→ Running build hook: [kms]
==> WARNING: Possibly missing firmware for module: ‘ast’
→ Running build hook: [modconf]
→ Running build hook: [block]
==> WARNING: Possibly missing firmware for module: ‘aic94xx’
==> WARNING: Possibly missing firmware for module: ‘bfa’
==> WARNING: Possibly missing firmware for module: ‘qed’
==> WARNING: Possibly missing firmware for module: ‘qla1280’
==> WARNING: Possibly missing firmware for module: ‘qla2xxx’
==> WARNING: Possibly missing firmware for module: ‘wd719x’
==> WARNING: Possibly missing firmware for module: ‘xhci_pci_renesas’
→ Running build hook: [keyboard]
→ Running build hook: [keymap]
→ Running build hook: [consolefont]
==> WARNING: consolefont: no font found in configuration
→ Running build hook: [plymouth]
→ Running build hook: [filesystems]
→ Running build hook: [fsck]
==> Generating module dependencies
==> Creating zstd-compressed initcpio image: ‘/boot/initramfs-linux-cachyos-rt-bore-lto-fallback.img’
→ Early uncompressed CPIO image generation successful
==> Initcpio image generation successful
==> Building image from preset: /etc/mkinitcpio.d/linux-cachyos-rt-bore.preset: ‘default’
==> Using default configuration file: ‘/etc/mkinitcpio.conf’
→ -k /boot/vmlinuz-linux-cachyos-rt-bore -g /boot/initramfs-linux-cachyos-rt-bore.img
==> Using drop-in configuration file: ‘10-chwd.conf’
==> Starting build: ‘6.12.1-1-cachyos-rt-bore’
→ Running build hook: [base]
→ Running build hook: [udev]
→ Running build hook: [autodetect]
→ Running build hook: [microcode]
→ Running build hook: [kms]
→ Running build hook: [modconf]
→ Running build hook: [block]
→ Running build hook: [keyboard]
→ Running build hook: [keymap]
→ Running build hook: [consolefont]
==> WARNING: consolefont: no font found in configuration
→ Running build hook: [plymouth]
→ Running build hook: [filesystems]
→ Running build hook: [fsck]
==> Generating module dependencies
==> Creating zstd-compressed initcpio image: ‘/boot/initramfs-linux-cachyos-rt-bore.img’
→ Early uncompressed CPIO image generation successful
==> Initcpio image generation successful
==> Building image from preset: /etc/mkinitcpio.d/linux-cachyos-rt-bore.preset: ‘fallback’
==> Using default configuration file: ‘/etc/mkinitcpio.conf’
→ -k /boot/vmlinuz-linux-cachyos-rt-bore -g /boot/initramfs-linux-cachyos-rt-bore-fallback.img -S autodetect
==> Using drop-in configuration file: ‘10-chwd.conf’
==> Starting build: ‘6.12.1-1-cachyos-rt-bore’
→ Running build hook: [base]
→ Running build hook: [udev]
→ Running build hook: [microcode]
→ Running build hook: [kms]
==> WARNING: Possibly missing firmware for module: ‘ast’
→ Running build hook: [modconf]
→ Running build hook: [block]
==> WARNING: Possibly missing firmware for module: ‘aic94xx’
==> WARNING: Possibly missing firmware for module: ‘bfa’
==> WARNING: Possibly missing firmware for module: ‘qed’
==> WARNING: Possibly missing firmware for module: ‘qla1280’
==> WARNING: Possibly missing firmware for module: ‘qla2xxx’
==> WARNING: Possibly missing firmware for module: ‘wd719x’
==> WARNING: Possibly missing firmware for module: ‘xhci_pci_renesas’
→ Running build hook: [keyboard]
→ Running build hook: [keymap]
→ Running build hook: [consolefont]
==> WARNING: consolefont: no font found in configuration
→ Running build hook: [plymouth]
→ Running build hook: [filesystems]
→ Running build hook: [fsck]
==> Generating module dependencies
==> Creating zstd-compressed initcpio image: ‘/boot/initramfs-linux-cachyos-rt-bore-fallback.img’
→ Early uncompressed CPIO image generation successful
==> Initcpio image generation successful
(5/5) Updating GRUB Config
Generating grub configuration file …
Found background: /usr/share/wallpapers/cachyos-wallpapers/splash.png
Found linux image: /boot/vmlinuz-linux-cachyos-rt-bore-lto
Found initrd image: /boot/initramfs-linux-cachyos-rt-bore-lto.img
Found fallback initrd image(s) in /boot: initramfs-linux-cachyos-rt-bore-lto-fallback.img
Found linux image: /boot/vmlinuz-linux-cachyos-rt-bore
Found initrd image: /boot/initramfs-linux-cachyos-rt-bore.img
Found fallback initrd image(s) in /boot: initramfs-linux-cachyos-rt-bore-fallback.img
Found linux image: /boot/vmlinuz-linux-cachyos-bore-lto
Found initrd image: /boot/initramfs-linux-cachyos-bore-lto.img
Found fallback initrd image(s) in /boot: initramfs-linux-cachyos-bore-lto-fallback.img
Found linux image: /boot/vmlinuz-linux-cachyos-bore
Found initrd image: /boot/initramfs-linux-cachyos-bore.img
Found fallback initrd image(s) in /boot: initramfs-linux-cachyos-bore-fallback.img
Found linux image: /boot/vmlinuz-linux-cachyos
Found initrd image: /boot/initramfs-linux-cachyos.img
Found fallback initrd image(s) in /boot: initramfs-linux-cachyos-fallback.img
Warning: os-prober will not be executed to detect other bootable partitions.
Systems on them will not be added to the GRUB boot configuration.
Check GRUB_DISABLE_OS_PROBER documentation entry.
Adding boot menu entry for UEFI Firmware Settings …
done
Press enter to exit

#ACTUAL ERROR::
@boot time after kernal auto selected by grub
running earlyhook[udev]
starting systemd-udevd version 256.8-1-arch
running hook[udev]
triggering udevents
running hook[keymap]
loading keymap…done
running hook[plymouth]
~ then getting stuck rather than preceding with initialization

i have set quite a few times before frequently on installations worked just fine
on recent updates its not working …
like from 6.8.9 or something like that upward.
even tried totally reflshing from live iso same issue.
specific to rt kernals…
while rt bore lto is not loading
bore lto is doing its job.

…details added…

i915 (Intel GPU) doesn’t support mainline PREEMPT_RT, this will be fixed in 6.12.2 where we patch the RT kernel with out-of-tree RT patches again.

waiting!
Chuckles…