Hello all together, first of all i want to Thank everyone who's going to try to help me. Thanks
My plan was to completely reinstall Windows10 on my Laptop, which was successful, sadly i can't ditch Windows because of the ever lacking MSOffice and Catia Problem...but gotta live with it. After that was done I utilized the Manual from within the Forum and installed Manjaro XFCE.
I have a ACER Aspire E 15 (E5-553G-15FM)
To visualize who I installed the whole thing here is the lsblk output of my 250GB SDD on sdb:
sdb1 ntfs Recovery 2E68169B681661BF
sdb2 vfat 081B-A4CC
sdb3
sdb4 ntfs 641C2CB91C2C87DE
sdb5 vfat 4BE7-4EB0 510,6M 0% /boot/efi
sdb6 swap 73ddc2a7-e6b4-412a-9c85-f682f73a2fe0 [SWAP]
sdb7 crypto_LUKS
So the first 4 Partitions were created via the Windows Installer. Where as:
- sdb1 = Recovery
- sdb2 = EFI Windows
- sdb3 = Microsoft Reserved
- sdb4 = the Install Device of the Windows Filesystem
Then the other three i created alike the upper mentioned Manual:
- sdb5 = EFI Manjaro
- sdb6 = swap Manjaro
- sdb7 = / (root) + /home via LUKS
and here's the only minor change i did to the Manual, i choose to include my /home within the / (root) Filesystem an not to create a separate /home partition. As well to choose to encrypt my / (root) directory via LUKS.
I was quite aware of the possibility that i probably run into some issues with Booting Process. Bevore switching to Manjaro i had a more or less working Ubuntu/Win10 Dual Boot. But sadly Ubuntu messed up quite something after i tried upgrading it in the EFI-Windows Partition.
So now low me describe what happen. First after Installing but before rebooting I did as mentioned run efibootmgr in the live-Environment of the Manjaro Installer. And did have to Add a separate Entry to the EFI Menu ans also i had to change the boot order via efibootmgr -o. I thought (actually hoped) it would be "done" and tried to reboot an hoped to see GRUB2 with a choice between Windows10 and Manjaro - but it straight booted to Windows.
In Windows utilizing bcdedit /set {bootmgr} path \EFI\manjaro\grubx64.efi didn't changed the whole subject.
Then i started booting again into the live System in order to solve the Problem and while browsing the internet i stumbled across a forum post (someone on a red hat distribution) mentioning some Intel chipset's have a weird tendency to always boot the \EFI\Microsoft\Boot\bootmgfw.efi from the first EFI Partition if available and just ignore everything else. There was also mentioned that it probably ignores everything written into efibootmgr and always resets the Boot-Order within. I checked that and Boot-Order was back to Windows only with dropped Manjaro entry. So i did what the form post mentioned as a solution, sadly i didn't wrote down the forums web address and i seem to be unable to find it again.
There was mentioned to mount e.g. sdb2 (EFI Windows) and move the \EFI\Microsoft\Boot\bootmgfw.efi to a newly created path \EFI\1Microsoft\Boot\bootmgfw.efi so the Chipset isn't able to find the "Standard" fallback location of that evil bootmgfw.efi anymore and then will respect the again newly enter EFI entry's and the correct boot order via efibootmgr.
So i rebooted and YES i was promted to enter my LUKS key but sadly went directly to the Manjaro LDM to be promted a Login. Manjaro itself works flawless and I'm quite happy with the Manjaro+XFCE experience in total. But i really needed to fix the GRUB2 and Boot-Select stuff.
I found this page https://ihaveabackup.net/article/grub2-entry-for-windows-10-uefi offering to create a new entry to the 40_custom GRUB file
menuentry ’Windoooof 10’ --class windows --class os {
insmod ntfs
search --no-floppy --set=root --fs-uuid 081B-A4CC
chainloader (${root})/EFI/1Microsoft/Boot/bootmgfw.efi
}
afterwards i ran update-grub and tryed restarting, entered my LUKS key hitting numerously the SHIFT Key to force GRUB to reveal itself but i always end directly on the LDM and Manjaro.
I guessed maybe "only" the bootmgfw.efi isn't enough to run the Windows Bootloader, and so i copied the entire folder \EFI\Microsoft to \EFI\1Microsoft while i was in the live-Environment but it didn't changed a thing.
I'm also still not able to "force" Grub to reveal itself on Boot, i think noting with the grub-configuration file is prohibiting it.
GRUB_DEFAULT=saved
GRUB_HIDDEN_TIMEOUT=
GRUB_TIMEOUT=20
GRUB_TIMEOUT_STYLE=menu
GRUB_DISTRIBUTOR='Manjaro'
GRUB_CMDLINE_LINUX_DEFAULT="quiet cryptdevice=UUID=639f1ab2-79b1-417c-9f92-a2be01606678:luks-639f1ab2-79b1-417c-9f92-a2be01606678 root=/dev/mapper/luks-639f1ab2-79b1-417c-9f92-a2be01606678 resume=/dev/mapper/luks-639f1ab2-79b1-417c-9f92-a2be01606678 resume=UUID=73ddc2a7-e6b4-412a-9c85-f682f73a2fe0"
GRUB_CMDLINE_LINUX=""
# If you want to enable the save default function, uncomment the following
# line, and set GRUB_DEFAULT to saved.
GRUB_SAVEDEFAULT=true
# Preload both GPT and MBR modules so that they are not missed
GRUB_PRELOAD_MODULES="part_gpt part_msdos"
# Uncomment to enable booting from LUKS encrypted devices
#GRUB_ENABLE_CRYPTODISK=y
# Uncomment to use basic console
GRUB_TERMINAL_INPUT=console
# Uncomment to disable graphical terminal
#GRUB_TERMINAL_OUTPUT=console
# The resolution used on graphical terminal
# note that you can use only modes which your graphic card supports via VBE
# you can see them in real GRUB with the command 'videoinfo'
GRUB_GFXMODE=auto
# Uncomment to allow the kernel use the same resolution used by grub
GRUB_GFXPAYLOAD_LINUX=keep
# Uncomment if you want GRUB to pass to the Linux kernel the old parameter
# format "root=/dev/xxx" instead of "root=/dev/disk/by-uuid/xxx"
#GRUB_DISABLE_LINUX_UUID=true
# Uncomment to disable generation of recovery mode menu entries
GRUB_DISABLE_RECOVERY=true
# Uncomment and set to the desired menu colors. Used by normal and wallpaper
# modes only. Entries specified as foreground/background.
GRUB_COLOR_NORMAL="light-gray/black"
GRUB_COLOR_HIGHLIGHT="green/black"
# Uncomment one of them for the gfx desired, a image background or a gfxtheme
#GRUB_BACKGROUND="/usr/share/grub/background.png"
GRUB_THEME="/usr/share/grub/themes/manjaro/theme.txt"
# Uncomment to get a beep at GRUB start
#GRUB_INIT_TUNE="480 440 1"
GRUB_ENABLE_CRYPTODISK=y
Now I'm done.....lol I'm very happy if someone reads my entire essay about my journey and is also able to support me with some feedback. I'm dangling with the idea of reinstalling grub, but I must say, I'm not quite sure that I'm able not to break everything in that try.
Thanks beforehand to everyone
Thomas
//edit:
I probably should post the efibootmgr -v output as well:
BootCurrent: 0000
Timeout: 0 seconds
BootOrder: 0000,2001,2002,2003
Boot0000* HDD0: HFS256G39TND-N210A PciRoot(0x0)/Pci(0x2,0x4)/Pci(0x0,0x0)/Sata(0,0,0)/HD(2,GPT,58143a7c-89ad-4049-ad65-388510aa8db1,0x109000,0x32000)RC
Boot0001* Unknown Device: MemoryMapped(11,0xb7e78000,0xb870bfff)/FvFile(7c04a583-9e3e-4f1c-ad65-e05268d0b4d1)RCkK..
Boot0002* Unknown Device: MemoryMapped(11,0xb7e78000,0xb870bfff)/FvFile(7c04a583-9e3e-4f1c-ad65-e05268d0b4d1)RCkK..
Boot0003* Unknown Device: MemoryMapped(11,0xb7e78000,0xb870bfff)/FvFile(7c04a583-9e3e-4f1c-ad65-e05268d0b4d1)RCkK..
Boot0004* Unknown Device: MemoryMapped(11,0xb7e78000,0xb870bfff)/FvFile(7c04a583-9e3e-4f1c-ad65-e05268d0b4d1)RCkK..
Boot0005* Unknown Device: MemoryMapped(11,0xb7e78000,0xb870bfff)/FvFile(7c04a583-9e3e-4f1c-ad65-e05268d0b4d1)RCkK..
Boot0013* Windoof10 HD(2,GPT,58143a7c-89ad-4049-ad65-388510aa8db1,0x109000,0x32000)/File(\EFI\1Microsoft\Boot\bootmgfw.efi)
Boot0014* Manjaro HD(5,GPT,36cce07a-4cd7-456b-958d-8f3f1722e5eb,0x9088800,0x100000)/File(\EFI\Manjaro\grubx64.efi)
Boot2001* EFI USB Device RC
Boot2002* EFI DVD/CDROM RC
Boot2003* EFI Network RC
and if i manuall change the boot order via efibootmgr -o 0013,0014 it doesn't effect it either, efibootmgr just forgets it till the next reboot.