pkg/build: chmod key file before running qemu

In case the original key has wrong permissions.
Ssh is very picky about key permissions.

1 files changed, 5 insertions, 0 deletions

diff --git a/pkg/build/netbsd.go b/pkg/build/netbsd.go
index 2a4d15440..ecf21ee77 100644
--- a/pkg/build/netbsd.go
+++ b/pkg/build/netbsd.go
@@ -6,6 +6,7 @@ package build
 import (
 	"encoding/json"
 	"fmt"
+	"os"
 	"path/filepath"
 	"runtime"
 	"strconv"
@@ -76,6 +77,10 @@ func (ctx netbsd) build(params *Params) error {
 			return fmt.Errorf("failed to copy %v -> %v: %v", fullSrc, fullDst, err)
 		}
 	}
+	keyFile := filepath.Join(params.OutputDir, "key")
+	if err := os.Chmod(keyFile, 0600); err != nil {
+		return fmt.Errorf("failed to chmod 0600 %v: %v", keyFile, err)
+	}
 	return ctx.copyKernelToDisk(params.TargetArch, params.VMType, params.OutputDir,
 		filepath.Join(compileDir, "netbsd"))
 }