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https://github.com/ibm-s390-linux/s390-tools.git
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54b3c9ef24
Bail out if the ngdump meta file could not be updated. Save the boot log also for normal exit. Signed-off-by: Mikhail Zaslonko <zaslonko@linux.ibm.com> Acked-by: Alexander Egorenkov <egorenar@linux.ibm.com> Signed-off-by: Jan Höppner <hoeppner@linux.ibm.com>
74 lines
1.2 KiB
Bash
Executable File
74 lines
1.2 KiB
Bash
Executable File
#!/bin/sh
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#
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# Copyright IBM Corp. 2021
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#
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# s390-tools is free software; you can redistribute it and/or modify
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# it under the terms of the MIT license. See LICENSE for details.
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#
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. /lib/dracut-lib.sh
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MNTDIR="/ngdump"
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DUMP="dump.elf"
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META="ngdump.meta"
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VMCORE="/proc/vmcore"
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is_dump_part_ok()
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{
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ismounted "$MNTDIR" && [ -e "$MNTDIR/$META" ]
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}
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save_logs()
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{
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is_dump_part_ok || return
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[ -e "$VMCORE" ] && makedumpfile -f --dump-dmesg "$VMCORE" "$MNTDIR/crash.log"
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journalctl -b >"$MNTDIR/boot.log"
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}
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cleanup()
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{
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sync
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umount "$MNTDIR"
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}
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bail_out()
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{
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warn "$1"
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save_logs
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cleanup
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exit 1
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}
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save_meta()
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{
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local hash=$(sha256sum "$MNTDIR/$DUMP" | cut -f1 -d ' ')
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cat >"$MNTDIR/$META" <<EOF
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version=1
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file=$DUMP
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sha256sum=$hash
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EOF
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}
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info "NGDump started"
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is_dump_part_ok || { bail_out "Dump partition not found"; }
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#
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# We must save the dump as ELF format, because
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# kdump compressed format is not supported by zgetdump yet
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#
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makedumpfile -f -E --message-level 7 -d 31 "$VMCORE" "$MNTDIR/$DUMP"
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[ $? -eq 0 ] || { bail_out "makedumpfile failed"; }
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#
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# Create a file containing meta information for zgetdump
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#
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save_meta
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[ $? -eq 0 ] || { bail_out "Could not update $META"; }
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save_logs
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cleanup
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exit 0
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