SL7 Boot: how to add single-user boot entries to initial grub menu
as root user
1) make a dated copy of prior /boot/grub2/grub.cfg, i.e. cp /boot/grub2/grub.cfg /boot/grub2/grub.cfg.20170117
2) make a dated copy of prior /etc/default/grub, i.e. cp /etc/default/grub /etc/default/grub.20170117
3) vi /etc/default/grub, set these variables:
GRUB_DISABLE_RECOVERY |
GRUB_DISABLE_SUBMENU |
|
true |
true |
as delivered in stock SL7 distro, no single user entries |
false |
true |
boot main menu will have single-user entry for every kernel |
false |
false |
boot submenu will have single-user entry for every kernel |
4) run grub2-mkconfig -o /boot/grub2/grub.cfg
- 5) reboot, new single-user entries will be labelled "recovery"