>>> Emerging : portage://sys-boot/os-prober-1.82:run?{[]}

These are the packages that would be merged, in order:

Calculating dependencies... done!

 └─step  1─┤ useflag portage://sys-boot/grub-2.16-r1 (mount)

 └─step  2─┤ download  portage://dev-lang/python-3.15.0
             │           └─ file ─┤ 34.04 Mb  	 Python-3.15.0.tar.xz
             │                    │ 4.52 Kb  	 python-gentoo-patches-3.15.0.tar.xz
             │ download  portage://sys-boot/grub-2.16-r1
             │           └─ file ─┤ 7.57 Mb  	 grub-2.16.tar.xz
             │ download  portage://sys-boot/grub-themes-gentoo-1.0-r2
             │           └─ file ─┤ 5.00 Mb  	 grub-themes-gentoo-1.0.tgz
             │ download  portage://sys-boot/os-prober-1.82
             │           └─ file ─┤ 26.95 Kb  	 os-prober_1.82.tar.xz
             │ download  portage://sys-fs/lvm2-2.03.39
             │           └─ file ─┤ 2.74 Mb  	 LVM2.2.03.39.tgz

 └─step  3─┤ install   portage://sys-fs/lvm2-2.03.39
             │           └─ conf ─┤ USE = "readline udev -lvm -nvme -sanlock -static -static-libs -test -thin -valgrind -vdo -xfs"
             │ install   portage://sys-boot/grub-themes-gentoo-1.0-r2
             │ install   portage://dev-lang/python-3.15.0
             │           └─ conf ─┤ USE = "gdbm* ncurses pgo* readline sqlite* ssl ensurepip (-jit) -bluetooth -build% -debug -examples -libedit
             │                    │          -tail-call-interp -test -tk -valgrind -verify-sig"
             │                    │ LLVM_SLOT = "21%*"
             │                    │ SLOT = "3.15"

 └─step  4─┤ run       portage://sys-boot/grub-themes-gentoo-1.0-r2
             │ run       portage://sys-fs/lvm2-2.03.39

 └─step  5─┤ install   portage://sys-boot/grub-2.16-r1 (USE modified)
             │           └─ conf ─┤ USE = "nls truetype* branding device-mapper fonts themes (-test) -doc -efiemu -libzfs mount -protect -sdl -secureboot
             │                    │          -verify-sig"
             │                    │ GRUB_PLATFORMS = "efi-64 pc (-loongson) (-qemu-mips) -coreboot -efi-32 -emu -ieee1275 -multiboot -qemu -uboot -xen -xen-32
             │                    │                     -xen-pvh"
             │                    │ SLOT = "2/2.16-r1"

 └─step  6─┤ run       portage://sys-boot/grub-2.16-r1 (USE modified)

 └─step  7─┤ install   portage://sys-boot/os-prober-1.82

 └─step  8─┤ run     portage://sys-boot/os-prober-1.82

Total: 15 actions (1 useflag, 5 downloads, 5 installs, 4 runs), grouped into 8 steps.
       49.38 Mb to be downloaded.


>>> Assumptions taken during proving & planning:

  USE flag change (1 package):
  Add to /etc/portage/package.use:
    sys-boot/grub mount