linux - Is reboot -f a safe way to cold-reboot? - Unix & Linux Stack ...
2018年7月27日 · So that invoking reboot -f manually uses a different reboot type, and it varied in how it respected reboot_mode. (On your specific system?). If you are able to report a difference between Linux and Windows reboot behaviour, the kernel developers might well be interested. Though they would be most interested if Linux was completely failing to ...
How reboot process works in linux? - Unix & Linux Stack Exchange
2019年10月16日 · I have searched how Linux reboot process work and everywhere found only the booting/start-up process. Suppose for a illegal reboot how machine recover my running processes/services (for example, if...
linux - What is the difference between reboot , init 6 and …
Except for reboot -f -r now as stated below. There is a small explanation taken from manpages of why the reboot -f is not safe:-f, --force Force immediate halt, power-off, reboot. Don't contact the init system. Edit: Forgot to mention, in upcoming RHEL distributions you should use the new systemctl command to issue
How to find out from the logs what caused system shutdown?
Display list of last reboot entries: last reboot | less. Display list of last shutdown entries: last -x | less. or more precisely: last -x | grep shutdown | less. You won't know who did it however. If you want to know who did it, you will need to add a bit of code which means you'll know next time. I've found this resource online. It might be ...
How to find out who/what caused a reboot/shutdown? - linux
2019年12月18日 · "In short, only root user or root privileged users can shutdown/reboot a system" is 100% wrong. A simple press on the power button can shutdown a computer (if not disabled), and ctrl+alt+del also (if not disabled), and most distros allows any GUI users to shutdown/reboot without being root or having any special privileges beside this one.
linux - How to choose between cold and warm reboot when using …
2023年12月12日 · What happens on a PC when Linux is instructed to reboot is that all services are stopped, file systems are unmounted and hardware as far as possible is deinitialized, and then the firmware of your motherboard gets told via ACPI that it should do a boot.
What to do when a Linux desktop freezes?
) that the Linux kernel handles specially. If your Linux box freezes and simply won't yield to any other key-commands, you should definitely try one particular key sequence before a hard reboot. The key sequence is popularly remembered with the mnemonic: Raising Elephants Is So Utterly Boring. Alt+SysRq+R switch keyboard to 'raw' mode
Rebooting fails randomly - Unix & Linux Stack Exchange
# apt-get install linux-image-x.x.x-xx OR $ sudo apt-get install linux-image-x.x.x-xx update: After doing this you may also try setting the reboot=pci kernel boot flag . To make the change permanent, add the rebooot=pci flag to the GRUB_CMDLINE_LINUX line of /etc/default/grub. For more information check out this link and this link
Linux reboot out of memory - Unix & Linux Stack Exchange
Memory accounting in the Linux kernel attempts to compensate for this by tracking the amount of memory actually in use by processes, and overcommits the amount of virtual memory. In other words the amount of virtual memory allocated by the kernel can exceed the amount of physical memory and swap space combined on the system.
reboot - How long has my Linux system been running? - Unix
2014年5月24日 · @Abdull Hi, even in my actual system (Ubuntu LTS -- util-linux 2.34) the last reboot command does not require root priviledges and gives the same answer with or without sudo. (The same if I add the -F option). Note, however, that is last reboot not last boot. It is interesting/useful to know on which system/version you find it was needed (it ...