I want to make a custom booting. I've read I can use
I made a partition where I want grub to be installed so that I can edit boot menu later.
sudo grub-install /dev/sdb2 gives
grub-install: warning: File system `ext2' doesn't support embedding. grub-install: error: embedding is not possible, but this is required for cross-disk install.
I've found https://unix.stackexchange.com/questions/174206/warning-file-system-ext2-doesnt-support-embedding-but-my-system-isnt-emb the reason answers say you install to partition, not disk. Ok,
sudo grub-install /dev/sdb gives
Installation finished., but where am I supposed to find config menu? embedded area between MBR and 1st partition? how to mount that then? Or what can be done to have menu and config on the partition I selected for grub?
P.S. web search for
error: embedding is not possible, but this is required for cross-disk install. did not lead me to solve my issue too.