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Timeline for Set the default kernel in GRUB

Current License: CC BY-SA 3.0

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Feb 2, 2022 at 17:30 comment added Andyc @Dronacharya After 5 years I can tell you that you probably needed to write both the submenu number (0 for the top one, 1 for "Advanced options") and then the menuentry number (9), all in between quotes, like GRUB_DEFAULT="1>9".
Jan 11, 2018 at 10:52 comment added Luis This did not work for me either. I deleted the unwanted kernel like explained here: askubuntu.com/a/764242/456247
Feb 27, 2017 at 14:40 comment added Dronacharya This is not working for me. The latest kernel in my installation is 4.4.0-64-generic (menuentry 0) but I want 4.4.0-59-generic (menuentry 9) to be the default boot kernel. I ran grub-set-default 9 and then grub-update and rebooted. I let grub boot with the default kernel and it still boots with 4.4.0-64-generic. I also tried editing /etc/default/grub and set GRUB_DEFAULT=9 and ran grub-update. On rebooting nothing changes, system still boots with 4.4.0-64-generic. Maybe I missed something, can anyone help me?
Apr 23, 2015 at 0:01 comment added somethingSomething In Fedora 21 it's /boot/grub2/grub.cfg.
Apr 22, 2015 at 23:37 history answered jkt123 CC BY-SA 3.0