Linux image not work

[dspitsyn]

Hi all. There is the following problem, virtual Linux machines do not see the hard drive.
Error: booting from Hard Disk...
Boot failed: not a bootable disk.
I am installing according to the instructions on the website, booting from cdrom and installing to hard drive, then i see the error. The worst thing is that my tinycore linux, which used to work, does not boot anymore.
I could not find a solution to this problem on the internet. I can't figure out where the hard drives of the virtual machines are stored and where the libvirt folder is stored, which seems to need to edit the configuration file.
The strangest thing is that the installation of the distribution passes without errors, which means that the system sees the hard disk.

[Uldis (UD)]

Images are not loaded properly.
If durin start it says no boot image, means image is created wrongly
We have bunch with linux images already prepared and ready to use..
https://www.eve-ng.net/index.php/docume ... ost-image/