GRUB-SET-DEFAULT (man8)
grub-set-default — Set the default boot menu entry for GRUB.
gnu-linux
grub-set-default — Set the default boot menu entry for GRUB.
sushell − execute the single-user shell
kernel-install − Add and remove kernel and initramfs images to and from /boot
devlink-dpipe − devlink dataplane pipeline visualization
pam_userdb − PAM module to authenticate against a db database
accessdb − dumps the content of a man-db database in a human readable format
vgcreate − Create a volume group
userhelper − A helper interface to PAM.
p11-kit − Tool for operating on configured PKCS#11 modules
vgimport − Register exported volume group with system