Debian-4.4.54-oxnas Package alsa-base is not available (2 replies)

root@Pogoplug-Pro:~# apt-get install alsa-base
Reading package lists... Done
Building dependency tree
Reading state information... Done
Package alsa-base is not available, but is referred to by another package.
This may mean that the package is missing, has been obsoleted, or
is only available from another source

E: Package 'alsa-base' has no installation candidate

root@Pogoplug-Pro:~# apt policy alsa-utils
alsa-utils:
  Installed: 1.1.3-1
  Candidate: 1.1.3-1
  Version table:
 *** 1.1.3-1 500
        500 http://ftp.us.debian.org/debian stretch/main armel Packages
        100 /var/lib/dpkg/status