Hi, I am facing the problem that no core files are written on my server (Debian GNU/Linux buster/sid).
root:~# sysctl kernel.core_pattern kernel.core_pattern = |/usr/libexec/abrt-hook-ccpp %s %c %p %u %g %t e root:~# ls /usr/libexec/abrt-hook-ccpp ls: cannot access '/usr/libexec/abrt-hook-ccpp': No such file or directory Ok problem is clear. abrt should handle segment faults but abrt is not installed. So I am trying to change the sysctl kernel.core_pattern to "core" as root (no sudo). root:~# sysctl -w kernel.core_pattern=core sysctl: permission denied on key 'kernel.core_pattern' root:~# echo "core" > /proc/sys/kernel/core_pattern bash: /proc/sys/kernel/core_pattern: Permission denied root:~# rm /proc/sys/kernel/core_pattern rm: cannot remove '/proc/sys/kernel/core_pattern': Permission denied Whats wrong? I have no access as root even though the file system is mounted as writable. -rw-r--r-- 1 root root 0 Oct 3 21:01 /proc/sys/kernel/core_pattern proc on /proc type proc (rw,relatime) Can anyone help? I have installed some debian testing packages a few months ago and reverted it. Thanks! Uwe
