All, The grub manual says:
fallback If this variable is set, it identifies a menu entry that should be selected if the default menu entry fails to boot. Entries are identified in the same way as for ‘default’ (see default). My question is: how does grub know whether the system "fails to boot"? Let's say in grub.conf default is set to 0 and fallback is set to 1, will system boot into 1 in following scenarioes? If yes, from where grub learn what happened? a) kernel 0 crashed during startup b) kernel 0 failed to start some service during startup? c) kernel 0 crashed at any time d) cycling power while kernel 0 startup? .... Thanks, Huang Zhong _______________________________________________ Help-grub mailing list [email protected] https://lists.gnu.org/mailman/listinfo/help-grub
