Questions tagged [sysrq]
3 questions
9
votes
1 answer
Difference between reboot -n and echo b > /proc/sysrq-trigger?
On Linux (specifically, RHEL derivatives CentOS and Fedora), is there a difference?
echo b > /proc/sysrq-trigger
"Immediately reboot the system, without unmounting or syncing filesystems," according to Wikipedia.
reboot -n
"Don’t sync before…
sh-beta
- 6,756
- 7
- 46
- 65
2
votes
1 answer
Is SysRq reboot any better than Ctrl-Alt-Del in case of freeze (debian distro)?
/etc/inittab
# What to do when CTRL-ALT-DEL is pressed.
ca:12345:ctrlaltdel:/sbin/shutdown -t1 -a -r now
Is a well-known safe-reboot via Alt + SysRq + RSEIUB any better
in terms of response or safety than Ctrl-Alt-Del on a debian?
Why?
jonny
- 357
- 1
- 3
- 14
0
votes
0 answers
Debian 10 cannot trigger crash to test kdump
I have set up kdump to debug an issue, and now I am trying to test it, because the issue I am trying to debug does not create a file in /var/crash. However, the test also does not work.
I am executing these commands as root:
echo "1" >…
Tom Atix
- 101
- 2