Comment 24 for bug 1978333

# JAMMY - proposed testing
------------

# enable proposed repo
cat <<EOF >/etc/apt/sources.list.d/ubuntu-$(lsb_release -cs)-proposed.list
# Enable Ubuntu proposed archive
deb http://archive.ubuntu.com/ubuntu/ $(lsb_release -cs)-proposed restricted main multiverse universe
EOF

sudo apt-get install kdump-tools

Version tested
dpkg -l | grep kdump
1:1.6.10ubuntu2

# edit kernel crash params due to this LP[1]
vim /etc/default/grub.d/kdump-tools.cfg

change 192MB to 512MB

save & exit

update-grub

# reboot VM
sudo reboot

kdump-config show
DUMP_MODE: kdump
USE_KDUMP: 1
KDUMP_COREDIR: /var/crash
crashkernel addr: 0x
   /var/lib/kdump/vmlinuz: symbolic link to /boot/vmlinuz-5.15.0-1014-azure
kdump initrd:
   /var/lib/kdump/initrd.img: symbolic link to /var/lib/kdump/initrd.img-5.15.0-1014-azure
current state: ready to kdump

kexec command:
  /sbin/kexec -p --command-line="BOOT_IMAGE=/boot/vmlinuz-5.15.0-1014-azure root=PARTUUID=fbfc827a-3738-445e-9fae-267258b78c1e ro console=tty1 console=ttyS0 earlyprintk=ttyS0 panic=-1 reset_devices systemd.unit=kdump-tools-dump.service nr_cpus=1 irqpoll nousb" --initrd=/var/lib/kdump/initrd.img /var/lib/kdump/vmlinuz

cat /proc/cmdline
BOOT_IMAGE=/boot/vmlinuz-5.15.0-1014-azure root=PARTUUID=fbfc827a-3738-445e-9fae-267258b78c1e ro console=tty1 console=ttyS0 earlyprintk=ttyS0 crashkernel=512M-:512M panic=-1

# set priority to 1
sudo sysctl -w kernel.sysrq=1

# perform crash
echo c > /proc/sysrq-trigger

cd /var/crash

-rw-r----- 1 root root 18552 Aug 22 13:32 linux-image-5.15.0-1014-azure-202208221332.crash