[gnome-build-meta.wiki] Update Bootable images in virtual machines

[Jordan Petridis <jpetridis src gnome org>]

commit dcafb8e713e92a309f5829b7506a9d7604318217
Author: Jordan Petridis <jpetridis gnome org>
Date:   Mon Jul 18 05:57:30 2022 +0000

    Update Bootable images in virtual machines

 Bootable-images-in-virtual-machines.md | 2 ++
 1 file changed, 2 insertions(+)
---
diff --git a/Bootable-images-in-virtual-machines.md b/Bootable-images-in-virtual-machines.md
index 98d9cf8..97f4461 100644
--- a/Bootable-images-in-virtual-machines.md
+++ b/Bootable-images-in-virtual-machines.md
@@ -214,6 +214,8 @@ Set `console=ttyS0` kernel argument to enable login on the serial console. If ru
 
 There is no root password set by default. You can get a login shell by adding kernel argument 
`systemd.debug_shell=1`, then switching to VT9 by pressing `<ctrl>+<alt>+<F9>`.
 
+Another way to change shell is to drop to a text tty, and then use `<alt>+<F9>`
+
 ### nr_entries is too big
 
 GNOME Shell seems to hit a limit in QEMU. If you get this error message