boot tools
list drives
df -h
sudo fdisk -l
lsblk
flags:-f
to get more verbose output-o
to get specific output columns, use-h
option to see list of column options
blkid
ls -l /dev/disk/by-id
, additional list options:ls -l /dev/disk/by-uuid
sudo lshw -class disk
findmnt
UEFI
efibootmgr
This is a command line utility that allows handling of the UEFI boot menu.
Installation:
- Debian or derivative:
sudo apt install efibootmgr
- Arch / Manjaro:
sudo pacman -S efibootmgr
Display Current Setting
Simply efibootmgr
or sudo efibootmgr
, use the -v flag for a more verbose output
Change Boot Order
Take the displayed BootOrder and and append and adjust to the following command to adjust: sudo efibootmgr -o
Current: BootOrder: 0003,000A,0002,000B,0001,0006,0007,0008,0009,0000
Adjusted: sudo efibootmgr -o 0002,000B,0003,000A,0001,0006,0007,0008,0009,0000
Add UEFI Boot Entry
Install command grub-efi
: sudo apt install grub-efi
Mount the the EFI System Partition: sudo mount /dev/sdd1 /boot/efi
Install Grub boot loader: sudo grub-install /dev/sdd –target=x86_64-efi –efi-directory=boot/efi/
Change boot selection time
sudo efibootmgr -t 10
to set boot selection time to 10 seconds
Delete a boot entry
sudo efibootmgr --delete-bootnum --bootnum 0
Links
GRUB
Ventoy
What is ventoy
Ventoy is an open source tool to create bootable USB drive for ISO/WIM/IMG/VHD(x)/EFI files.
- With ventoy, you don't need to format the disk over and over, you just need to copy the ISO/WIM/IMG/VHD(x)/EFI files to the USB drive and boot them directly.
- You can copy many files at a time and ventoy will give you a boot menu to select them (screenshot).
- x86 Legacy BIOS, IA32 UEFI, x86_64 UEFI, ARM64 UEFI and MIPS64EL UEFI are supported in the same way.
- Most type of OS supported (Windows/WinPE/Linux/ChromeOS/Unix/VMware/Xen…)
This can be loaded on to a USB disk instead of a flash drive for a potential better overall experience.