>> I'm installing the wrong version or is a small bug?
> cosmetic glitch.
Ok, I only wanted to be sure that I'm working with the right version.
So, I continue with this problem when I'm trying to build.
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WARNING: The following packages cannot be authenticated!
live-boot-initramfs-tools live-boot live-config-sysvinit live-config
live-initramfs
E: There are problems and -y was used without --force-yes
P: Begin unmounting filesystems...
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Héctor.