I’ve been trying to update my BIOS according to the manufacturer’s instructions.
There’s a key point here: It is recommended to save the BIOS file to the root folder for easier access.
In the “flash mode” it sees my SSD like this, just two directories:
fs0:\EFI\Manjaro
fs0:\EFI\boot
Both directories are empty. The screenshot in the manual suggests that I put the BIOS file into fs0:\
Where is this “root folder” from my system point of view? It isn’t my / in Linux terminal. Where do I have to put the downloaded BIOS file to make it visible in terms of the “flash mode”?
The sentence you quote from the manual is a reference to the USB media where you store the downloaded archive. The sequence number 3 is split over two pages and should be read as a whole.
Extract the BIOS-zip file that you have downloaded and paste it to your USB
storage device. Note: It is recommended to save the BIOS file to the root folder for easier access.
Be sure to format the usb device with FAT32 (mkfs.vfat -F32 /dev/USBPATH)
The location fs0:\ is usually your efi partition as seen by the efi shell.
In this case it seems to refer to the USB device - whether that is correct or not I cannot say. Use the dir command if you are in doubt.
The efi partition on Manjaro is mounted at /boot/efi as this is a grub requirement.
If your system is using systemd or refind the location may be /efi.