update CHANGELOG

CHANGELOG.md

@@ -118,6 +118,7 @@ BUG FIXES:
       to retrieve the SSH IP from. [GH-2220]
   * builder/qemu: Add `disk_discard` option [GH-2120]
   * builder/qemu: Use proper SSH port, not hardcoded to 22. [GH-2236]
+  * builder/qemu: Find unused SSH port if SSH port is taken. [GH-2032]
   * builder/virtualbox: Bind HTTP server to IPv4, which is more compatible with
       OS installers. [GH-1709]
   * builder/virtualbox: Remove the floppy controller in addition to the
@@ -126,6 +127,7 @@ BUG FIXES:
       ".iso" extension didn't work. [GH-1839]
   * builder/virtualbox: Output dir is verified at runtime, not template
       validation time. [GH-2233]
+  * builder/virtualbox: Find unused SSH port if SSH port is taken. [GH-2032]
   * builder/vmware: Add 100ms delay between keystrokes to avoid subtle
       timing issues in most cases. [GH-1663]
   * builder/vmware: Bind HTTP server to IPv4, which is more compatible with

builder/virtualbox/common/step_forward_ssh.go

@@ -46,10 +46,10 @@ func (s *StepForwardSSH) Run(state multistep.StateBag) multistep.StepAction {
 		}
 
 		for {
-			sshHostPort = offset + s.HostPortMin
-			if sshHostPort >= s.HostPortMax {
+			sshHostPort = offset + int(s.HostPortMin)
+			if sshHostPort >= int(s.HostPortMax) {
 				offset = 0
-				sshHostPort = s.HostPortMin
+				sshHostPort = int(s.HostPortMin)
 			}
 			log.Printf("Trying port: %d", sshHostPort)
 			l, err := net.Listen("tcp", fmt.Sprintf("127.0.0.1:%d", sshHostPort))