Thanks, but that is not the solution I am looking for. I want free command-line oneliner/script that would do the same as dd in MacOS does. The image file should be dd-compatible in case I decide to ditch windows or it crashes.
I think I finally have it:
I found dd for windows here:
https://aeroquartet.com/treasured/dd for windows.en.html
In the webpage they identify the disk by mount point (drive letter) but in my case the macos drive is not mounted. So I identified disk number in diskpart:
Code:
DISKPART> list disk
Disk ### Status Size Free Dyn Gpt
-------- ------------- ------- ------- --- ---
Disk 0 Online 1863 GB 0 B *
Disk 1 Online 1863 GB 0 B *
Disk 2 Online 1863 GB 0 B *
Disk 3 Online 1863 GB 0 B *
Disk 4 Online 931 GB 0 B *
Disk 5 Online 232 GB 1024 KB *
Disk 6 Online 232 GB 0 B *
Disk 7 Online 232 GB 0 B *
As you see, I have 3 disks with the same size so identification is not straightforward. Disk 5 shows free space, so it's mounted - this is probably the windows drive. I have another same-size same-vendor drive for MacOS (Samsung 970 Evo Plus). So let's select disk 6 and see detail.
Code:
DISKPART> select disk 6
Disk 6 is now the selected disk.
DISKPART> detail disk
Samsung SSD 970 EVO Plus 250GB
Disk ID: {EA898092-B83E-4CFB-BACF-794719CFB16E}
Type : NVMe
Status : Online
Path : 0
Target : 0
LUN ID : 0
Location Path : PCIROOT(0)#PCI(1D00)#PCI(0000)#NVME(P00T00L00)
Current Read-only State : No
Read-only : No
Boot Disk : No
Pagefile Disk : No
Hibernation File Disk : No
Crashdump Disk : No
Clustered Disk : No
Volume ### Ltr Label Fs Type Size Status Info
---------- --- ----------- ----- ---------- ------- --------- --------
Volume 10 EFI FAT32 Partition 200 MB Healthy Hidden
In my case it's disk 6 because disk5 is windows C drive and disk7 is the USB disk used as additional CCC backup from MacOS.
So to compose the dd command it is needed to use the disk path, not volume path. Since it's disk 6, we need to use \\.\PhysicalDrive6 path.
From administrator command prompt (started by win+r, cmd, ctrl+shift+enter)
Code:
C:\Windows\system32>\Users\vratn\OneDrive\Desktop\dd.exe if=\\.\PhysicalDrive6 of=\\192.168.1.11\ZALOHA\zalohy\mac.dd bs=1M --progress
rawwrite dd for windows version 0.5.
Written by John Newbigin <[email protected]>
This program is covered by the GPL. See copying.txt for details
49,237,983,232
I save the commands into a text file with .bat extension.
Code:
net use z: \\192.168.1.11\share /user:pi pass /persistent:yes
del z:\mac.dd.old
ren z:\mac.dd mac.dd.old
c:\Users\vratn\OneDrive\Desktop\dd.exe if=\\.\PhysicalDrive6 of=z:\mac.dd bs=1M --progress
Next step is to automate it to start at windows boot.
win+r
taskschd.msc
create task
triggers - at startup
actions - select the bat file saved in previous step
general - change user or group: Enter object name: SYSTEM (click check names)
BOOM! Automatic backup of MacOS disk upon windows startup!
