Kexec: Difference between revisions
WhyNotHugo (talk | contribs) (Add warning on this being not graceful) |
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On a typical Alpine setup, it can be used via: | On a typical Alpine setup, it can be used via: | ||
{{Cmd|# kexec -l /boot/vmlinuz-edge --initrd \ | |||
/boot/initramfs-edge --reuse-cmdline | |||
# kexec -e}} | |||
{{Warning|Running <code>kexec -e</code> does not unmount any filesystems or gracefully shut down any services!}} | {{Warning|Running <code>kexec -e</code> does not unmount any filesystems or gracefully shut down any services!}} | ||
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There are no Alpine-specific considerations for Kexec. Please review the man page and existing references below of more details. This page is deliberately kept short in order to avoid duplicating existing documentation. | There are no Alpine-specific considerations for Kexec. Please review the man page and existing references below of more details. This page is deliberately kept short in order to avoid duplicating existing documentation. | ||
= See also = | == See also == | ||
* [https://wiki.gentoo.org/wiki/Kexec Gentoo Wiki: Kexec] | * [https://wiki.gentoo.org/wiki/Kexec Gentoo Wiki: Kexec] | ||
* [https://wiki.archlinux.org/title/Kexec ArchWiki: Kexec] | * [https://wiki.archlinux.org/title/Kexec ArchWiki: Kexec] | ||
[[Category: Booting]] | |||
[[Category: Kernel]] | |||
Revision as of 15:42, 13 August 2023
Kexec is a system call that enables loading and booting into another kernel. This is useful for fast reboots that skip the BIOS or UEFI initialisation process.
On a typical Alpine setup, it can be used via:
# kexec -l /boot/vmlinuz-edge --initrd \ /boot/initramfs-edge --reuse-cmdline # kexec -e
Warning: Running
kexec -e does not unmount any filesystems or gracefully shut down any services!
There are no Alpine-specific considerations for Kexec. Please review the man page and existing references below of more details. This page is deliberately kept short in order to avoid duplicating existing documentation.