/auto-kexec

Automatically Kexec into latest Linux kernel version.

Primary LanguageShellMIT LicenseMIT

auto-kexec

Automatically Kexec into latest Linux kernel version.

  • Requires that the user executing auto-kexec is able to run kexec commands without a password for automation.

Setup in sudo via NOPASSWD tag for the user.

Example sudoers file, change USER to the correct user running auto-kexec:

# Allow _USER_ to run systemctl kexec and kexec without a password
_USER_ ALL = NOPASSWD: /usr/bin/systemctl kexec
_USER_ ALL = NOPASSWD: /usr/sbin/kexec
  • Setup auto-kexec via crontab as appropriate for your situation and downtime windows.

Example cron job, requires that the auto-kexec command can be found in the user's $PATH var:

# Auto Kexec into latest kernel version at 2:02 AM every Sunday.
2 2 * * 0 auto-kexec
  • Only actively used and tested on OL and RHEL Linux RPM-based distributions so far.

Other Linux distributions will require changes. Pull requests are welcome and encouraged.