Trying to install Guix System on a nonfree computer, the system frezees at booting, bug?

[Jan]

Hi, I'm trying to install Guix System on the following computer:Ryzen 5 1600MSI 
pcmate B350ADATA SX7000NP - it's a NVMe SSDThe problem is installation finishes 
successfully, but after rebooting and trying to start the system it freezes 
like on a screenshot attached below. I asked on the IRC and a person told me 
Guix System often works on almost all machines and I should check 
/var/log/messages, but then the person disappeared, but I have the log. I don't 
know if it's a bug or that's my nonfree hardware, so I posted the issue here. 
--Jan

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messages
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