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