Last active
December 9, 2019 12:52
-
-
Save cpuguy83/6143347 to your computer and use it in GitHub Desktop.
Boot Ubuntu with custom kernel on Digital Ocean
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| apt-get install kexec-tools | |
| # Insert this at the top of /etc/init.d/rcS | |
| if grep -qv ' kexeced$' /proc/cmdline ;then | |
| kexec --load /vmlinuz --initrd=/initrd.img --append='root=LABEL=DOROOT kexeced' && | |
| mount -o ro,remount / && | |
| kexec -e | |
| fi | |
| # Then just use apt/dpkg to install whatever kernel you want, e.g. from http://kernel.ubuntu.com/~kernel-ppa/mainline/ |
I think is important to update this to reflect that the bootloader for many images(debian and ubuntu included) in digitalocean changed to boot the kernel configured in debian and not in the control panel.
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
This doesn't work quite right for me; for some reason the mount command fails, which also skips the kexec -e. If I remove the && after the mount command, allowing the kexec -e to be executed even if the mount fails, everything works.