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|
#! /bin/sh
KEXEC=/sbin/kexec
standard_kexec_args="-p"
KDUMP_FILE_LOAD=""
EARLY_KDUMP_INITRD=""
EARLY_KDUMP_KERNEL=""
EARLY_KDUMP_CMDLINE=""
EARLY_KDUMP_KERNELVER=""
EARLY_KEXEC_ARGS=""
. /etc/sysconfig/kdump
. /lib/dracut-lib.sh
. /lib/kdump-lib.sh
prepare_parameters()
{
EARLY_KDUMP_CMDLINE=$(prepare_cmdline "${KDUMP_COMMANDLINE}" "${KDUMP_COMMANDLINE_REMOVE}" "${KDUMP_COMMANDLINE_APPEND}")
KDUMP_BOOTDIR=$(check_boot_dir "${KDUMP_BOOTDIR}")
EARLY_KDUMP_KERNEL="${KDUMP_BOOTDIR}/${KDUMP_IMG}-earlykdump${KDUMP_IMG_EXT}"
EARLY_KDUMP_INITRD="${KDUMP_BOOTDIR}/initramfs-earlykdump.img"
}
early_kdump_load()
{
check_kdump_feasibility
if [ $? -ne 0 ]; then
return 1
fi
if is_fadump_capable; then
echo "WARNING: early kdump doesn't support fadump."
return 1
fi
check_current_kdump_status
if [ $? == 0 ]; then
return 1
fi
prepare_parameters
EARLY_KEXEC_ARGS=$(prepare_kexec_args "${KEXEC_ARGS}")
if [ "$KDUMP_FILE_LOAD" == "on" ]; then
echo "Using kexec file based syscall."
EARLY_KEXEC_ARGS="$EARLY_KEXEC_ARGS -s"
fi
$KEXEC ${EARLY_KEXEC_ARGS} $standard_kexec_args \
--command-line="$EARLY_KDUMP_CMDLINE" \
--initrd=$EARLY_KDUMP_INITRD $EARLY_KDUMP_KERNEL
if [ $? == 0 ]; then
echo "kexec: loaded early-kdump kernel"
return 0
else
echo "kexec: failed to load early-kdump kernel"
return 1
fi
}
set_early_kdump()
{
if getargbool 0 rd.earlykdump; then
echo "early-kdump is enabled."
early_kdump_load
else
echo "early-kdump is disabled."
fi
return 0
}
set_early_kdump
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