I configured kdump-tools according to https://www.bentasker.co.uk/documentation/linux/312-installing-and-configuring-kdump-on-debian-jessie. But my kernel doesn't see crashkernel in GRUB_CMDLINE_LINUX_DEFAULT.
My kernel:
$ uname -a
Linux pavel-test-106 3.16.0-4-amd64 #1 SMP Debian 3.16.39-1+deb8u2 (2017-03-07) x86_64 GNU/Linux
I updated /etc/default/grub:
$ cat /etc/default/grub
GRUB_CMDLINE_LINUX="console=ttyS0,38400n8 elevator=noop"
GRUB_TIMEOUT=0
GRUB_SERIAL_COMMAND="serial"
GRUB_DISABLE_RECOVERY=True
GRUB_GFXMODE="auto"
GRUB_HIDDEN_TIMEOUT_QUIET=True
GRUB_HIDDEN_TIMEOUT=0
TERMINAL="console"
GRUB_DEFAULT=0
GRUB_CMDLINE_LINUX_DEFAULT="crashkernel=128M cgroup_enable=memory swapaccount=1"
then
$ update-grub
$ reboot now
And there is no effect:
$ kdump-config show
[FAIL] no crashkernel= parameter in the kernel cmdline ... failed!
USE_KDUMP: 1
KDUMP_SYSCTL: kernel.panic_on_oops=1
KDUMP_COREDIR: /var/crash
crashkernel addr:
current state: Not ready to kdump
kernel link:
kexec command:
no kexec command recorded
Kernel cmdline:
$ cat /proc/cmdline
BOOT_IMAGE=/boot/vmlinuz-3.16.0-4-amd64 root=UUID=328c1eeb-1a6f-4fa6-a850-b59782541c5c ro console=ttyS0,38400n8 elevator=noop cgroup_enable=memory swapaccount=1
