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Update cookbook.md 

Add procedure to make a Windows image on the PiKVM
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@ -124,3 +124,57 @@ How to create RW flash drive:
# ro # ro
``` ```
7. You can download the resulting image via SCP or mount it as a loop device on the Pi-KVM. 7. You can download the resulting image via SCP or mount it as a loop device on the Pi-KVM.
## Create a Microsoft Windows based Flash disk image
This procedure requires sufficient space on your SD card.
Without resising, the full size of the USB stick will be used, so keep it as small as possible (e.g. 4GB or 8GB).
You can also do this on a separate unix machine and transfer the image over to pikvm.
On Windows you could use a program like PassMark ImageUSB or 'dd' for Windows to create the image.
You can use a tool like "EaseUS Partition Master Free" or "GParted" to resize the main FAT32 partition. This will save on PiKVM used storage space.
1. Insert Windows based USB stick into Pi4, generated with Microsoft USB creation tool. SSH to PiKVM as root.
```
# dmesg
[ 3025.025401] usb-storage 2-1:1.0: USB Mass Storage device detected
[ 3025.038911] scsi host0: usb-storage 2-1:1.0
[ 3026.132248] scsi 0:0:0:0: Direct-Access Kingston DataTraveler 3.0 PMAP PQ: 0 ANSI: 6
[ 3026.771425] sd 0:0:0:0: [sda] 15360000 512-byte logical blocks: (7.86 GB/7.32 GiB)
[ 3026.790276] sd 0:0:0:0: [sda] Write Protect is off
[ 3026.802530] sd 0:0:0:0: [sda] Mode Sense: 23 00 00 00
[ 3026.804450] sd 0:0:0:0: [sda] No Caching mode page found
[ 3026.814082] sd 0:0:0:0: [sda] Assuming drive cache: write through
[ 3026.908712] sda: sda1
[ 3026.922794] sd 0:0:0:0: [sda] Attached SCSI removable disk
[root@pikvm ~]#
```
USB devices shows as "sda". We will use "sda1" as the Microsoft Windows (TM) partition.
2. mount msd folder as read/write
```
# kvmd-helper-otgmsd-remount rw
```
3. Create image of USB data PARTITION to an image file, this will take some time, in this case about 12 minutes (RPi4).
```
# dd if=/dev/sda1 of=/var/lib/kvmd/msd/images/windows10-2004.bin bs=8M status=progress
4458545152 bytes (4.5 GB, 4.2 GiB) copied, 736 s, 6.1 MB/s
531+1 records in
531+1 records out
4458545152 bytes (4.5 GB, 4.2 GiB) copied, 736.213 s, 6.1 MB/s
````
4. Correct ownership of new image and make sure the website reports the file as complete (pay attention to the different folder).
```
# chown kvmd:kvmd /var/lib/kvmd/msd/images/windows10-2004.bin
# touch /var/lib/kvmd/msd/meta/windows10-2004.bin.complete
```
5. Remount msd folder as read only
```
# kvmd-helper-otgmsd-remount ro
````
6. On PiKVM webpage, under Mass Storage select the new image and connect it in Drive Mode: Flash to the server.
Boot the server and select boot device like you normally would.
E.g. in a AMI BIOS the boot device is called "Linux File-CD Gadget 0504".