Thank you everyone, for your warm welcome and timely
response. I downloaded the key from the download site and proceeded to
verify it. But the public key was required so I ran the command to
retrieve it:
gpg --keyserver pgp.mit.edu --recv-keys 3CE464558A84FDC69DB40CFB090B11993D9AEBB5
which alas again returned the error:
keyserver timed out
keyserver recieve failed.
I visited https://pgp.mit.edu/ to search the string
3CE464558A84FDC69DB40CFB090B11993D9AEBB5 ( I guessed this must be the string needed to be searched to extract the key)
but that search returned "no such key found." I decided to proceed with the installations then, and wrote the command as root
(by sudo -i ), to unpack the tarball in tmp folder:
/# cd /tmp
/# tar -xf guix-binary-0.9.0.x86_64-linux.tar.xz
And this is what it returned:
tar: guix-binary-0.9.0.x86_64-linux.tar.xz: Cannot open: No such file or directory
I tried the same after saving the guix-binary-0.9.0.x86_64-linux.tar.xz in tmp folder but again the some result. I'm trying googling and
finding solution to this for now. Any help is most welcomed.