On Sat, 8 Feb 2025 06:36:16 -0000 (UTC), Lawrence D'Oliveiro
<ldo@nz.invalid> wrote in <vo6u10$3ue2q$1@dont-email.me>:
Doesn’t RHEL support kexec, which
allows the old Linux kernel to pass control to the new one without
actually disrupting the userland?
You're thinking of live kernel patching. kexec_load(2) load a kernel
that you can have execute if the current kernel crashes. You do this
for debugging, usually.
Bit more than that <https://manpages.debian.org/kexec_load(2)>:
The kexec_load() system call loads a new kernel that can be
executed later by reboot(2).
And one of the functions of the latter
<https://manpages.debian.org/reboot(2)> is:
LINUX_REBOOT_CMD_KEXEC
(RB_KEXEC, 0x45584543, since Linux 2.6.13). Execute a kernel
that has been loaded earlier with kexec_load(2).
| Date | Sujet | # | Auteur | |
| 28 Mar 26 |  … |
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