There are some common problems while interacting with the zypper install utility that can be easily resolved.
This page requires interactive access to the image being worked with.
If the image being customized was not saved out correctly, /dev/tty1 may not have been set up
correctly. That will result in an error similar to the following when attempting to install
packages using zypper:
warning: Found NDB Packages.db database while attempting bdb backend: using ndb backend.
warning: Found NDB Packages.db database while attempting bdb backend: using ndb backend.
warning: Found NDB Packages.db database while attempting bdb backend: using ndb backend.
Loading repository data...
Reading installed packages...
warning: Found NDB Packages.db database while attempting bdb backend: using ndb backend.
Resolving package dependencies...
The following 8 NEW packages are going to be installed:
emacs emacs-info emacs-nox etags libgpm2 libjansson4 liblcms2-2 system-user-games
8 new packages to install.
Overall download size: 23.2 MiB. Already cached: 0 B. After the operation, additional 91.9 MiB will be used.
Continue? [y/n/v/...? shows all options] (y): Cannot read input: bad stream or EOF.
If you run zypper without a terminal, use '--non-interactive' global
option to make zypper use default answers to prompts.
There are two possible workarounds for this situation:
Use the --non-interactive option with zypper and it will proceed without error.
zypper --non-interactive in emacs
Fix /dev/tty in the image.
mknod /dev/tty c 5 0