Use the command
apt-get install make He gave me this result
root@R2CPU:/# apt-get install make Reading package lists... Done Building dependency tree Reading state information... Done Suggested packages: make-doc The following NEW packages will be installed: make 0 upgraded, 1 newly installed, 0 to remove and 0 not upgraded. Need to get 290 kB of archives. After this operation, 1164 kB of additional disk space will be used. Err:1 http://deb.debian.org/debian stretch/main armhf make armhf 4.1-9.1 Temporary failure resolving 'deb.debian.org' E: Failed to fetch http://deb.debian.org/debian/pool/main/m/make-dfsg/make_4.1-9.1_armhf.deb Temporary failure resolving 'deb.debian.org' E: Unable to fetch some archives, maybe run apt-get update or try with --fix-missing? I still do not understand why the computer could not contact the repository, maybe it is worth it first to configure ?? Maybe this is connected to the Internet ??
I just inserted the Internet wire
root@R2CPU:/# fec 2188000.ethernet eth0: Link is Up - 100Mbps/Full - flow control off looked at the settings of the repository /etc/resolv.conf as for me everything is OK
root@R2CPU:/etc# more resolv.conf nameserver 192.168.1.250 nameserver 8.8.8.8 nameserver 8.8.4.4 
sudo rm -f /etc/resolv.conf && echo nameserver 8.8.8.8 | sudo tee /etc/resolv.confsudo rm -f /etc/resolv.conf && echo nameserver 8.8.8.8 | sudo tee /etc/resolv.conf- andreymal