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ohadlevy/kexec.sh

Created July 16, 2020 14:36
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kexec.sh
#! /bin/sh -e
URL=$1
MOUNT='mount -o loop,ro image'
KERNEL='images/vmlinuz'
INITRD='images/initramfs.img'
KERNEL_ARG='mitigations=auto,nosmt systemd.unified_cgroup_hierarchy=0 coreos.liveiso=fedora-coreos-31.20200319.dev.1 rd.neednet=1 ip=dhcp ignition.firstboot ignition.platform.id=metal'
TMP=`mktemp -d`
cd $TMP
mkdir mnt
wget $URL
$MOUNT mnt && cd mnt
kexec --force --reset-vga --initrd=$INITRD --append="$KERNEL_ARG" $KERNEL
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