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efibootmgr: update page (#13250)

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pages/linux/efibootmgr.md
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@ -3,22 +3,22 @@
> Manipulate the UEFI Boot Manager.
> More information: <https://manned.org/efibootmgr>.
- List the current settings then bootnums with their name:
- List all boot options with their numbers:
`efibootmgr`
- List the filepaths:
`efibootmgr -v`
`efibootmgr {{-u|--unicode}}`
- Add UEFI Shell v2 as a boot option:
`sudo efibootmgr -c -d {{/dev/sda1}} -l {{\EFI\tools\Shell.efi}} -L "{{UEFI Shell}}"`
`sudo efibootmgr -c -d {{/dev/sda}} -p {{1}} -l "{{\path\to\shell.efi}}" -L "{{UEFI Shell}}"`
- Add Linux as a boot option:
`sudo efibootmgr --create --disk {{/dev/sda}} --part {{1}} --loader "{{\vmlinuz}}" --unicode "{{kernel_cmdline}}" --label "{{Linux}}"`
- Change the current boot order:
`sudo efibootmgr -o {{0002,0008,0001,0005}}`
`sudo efibootmgr {{-o|--bootorder}} {{0002,0008,0001,0005}}`
- Delete a boot option:
`sudo efibootmgr -b {{0008}} --delete-bootnum`
`sudo efibootmgr {{-b|--bootnum}} {{0008}} {{-B|--delete-bootnum}}`