articles: arch-installation: Use qemu-img dd

This avoids saving a multi-gigabyte image file to disk and streams
directly to the target block device.

1 files changed, 6 insertions, 12 deletions

diff --git a/content/articles/arch-installation.md b/content/articles/arch-installation.md
index cf183cb..57c7196 100644
--- a/content/articles/arch-installation.md
+++ b/content/articles/arch-installation.md
@@ -202,20 +202,14 @@ exit
 poweroff
 ```
 
-Optionally the QEMU image can be converted to a binary image to flash it to a
-physical drive like an USB stick or SSD.
+The virtual machine image can be written to a physical drive like a boot stick
+or SSD with `qemu-img`. For that the `/dev/null` in the following command has
+to be replaced by the path to the correct drive. A mistake here might lead to
+the destruction of the current system with no way back. Use with care and only
+if you know what you are doing.
 
 ```
-qemu-img convert -f qcow2 -O raw archlinux.qcow2 archlinux.img
-```
-
-This image can be written to the target device (`/dev/sdb` in this case). It is
-very important to select the correct target and triple-check the following
-command before execution. If the currently used system is the target it is
-simply overwritten without any way back!
-
-```
-dd if=archlinux.img of=/dev/sdb bs=512 status=progress
+qemu-img dd -f qcow2 -O raw if=archlinux.qcow2 of=/dev/null
 ```
 
 Otherwise the virtual machine image can be started again with QEMU without the