[ipxe-devel] IPXE fails to verify images on EFI system

Michael Brown mcb30 at ipxe.org
Tue Jul 9 12:32:36 UTC 2019

On 21/06/2019 09:48, Ján ONDREJ (SAL) wrote:
>    I am trying to make boot.salstar.sk working on an EFI system. After some
> troubles with disabling secure boot or allowing my ipxe.efi image, it's
> now booting, but my scripts are unable to validate ipxe script files.
>    Error message is:
> Could not start download: Invalid argument (http://ipxe.org/1c25e082)
> Using an "chain http://..." command works well, but without signature
> checking.
> Is this a bug of ipxe or is it a "feature" of EFI booting?

As per the error page, it indicates a failure to obtain a usable entropy 
source.  Try building with DEBUG=efi_entropy,entropy,drbg


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