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kexec-installer: print dmesg if kexec --load fails

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In some cases dmesg contains interesting errors
This commit is contained in:
Jörg Thalheim 2023-05-15 11:15:15 +02:00
parent 8d32c7409c
commit 3db198a018
1 changed files with 6 additions and 2 deletions
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8
nix/kexec-installer/kexec-run.sh
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@ -53,9 +53,13 @@ done
find . | cpio -o -H newc | gzip -9 >> "$SCRIPT_DIR/initrd"
# Dropped --kexec-syscall-auto because it broke on GCP...
"$SCRIPT_DIR/kexec" --load "$SCRIPT_DIR/bzImage" \
if ! "$SCRIPT_DIR/kexec" --load "$SCRIPT_DIR/bzImage" \
--initrd="$SCRIPT_DIR/initrd" --no-checks \
--command-line "init=$init $kernelParams"
--command-line "init=$init $kernelParams"; then
echo "kexec failed, dumping dmesg"
dmesg | tail -n 100
exit 1
fi
# Disconnect our background kexec from the terminal
echo "machine will boot into nixos in in 6s..."