--- APT - YUM Recovery Commands ---

U M O U N T

umount -l -f /path/to/hung/stale/mount-point

A P T

Start by using these commands (repeate and reorder as needed)

apt-get clean
apt-get autoclean
apt-get check
dpkg --configure -a
apt-get autoremove
apt-get update --fix-missing
apt-get -f install

Encourage at Dist Upgrade with a GUI: do-release-upgrade -d -f DistUpgradeViewGtk3

dpkg --remove --force-remove-reinstreq <package name> 

vi /var/lib/dpkg/status

Another way to get past a 'stuck' configuration is:
post.instillation
mv /var/lib/dpkg/info/<package name>.postinst /var/lib/dpkg/info/00-<package name>.postinst

Y U M

Clean Up Ab-Ended yum update

yum clean all

rm -rf /var/cache/yum

ls -ld /var/lib/rpm/__db.00*
rm -rf /var/lib/rpm/__db.00*

yum distro-sync

yum makecache

Get newest kernel headers

yum search kernel |egrep ^kernel | egrep uek |grep -v grep

yum kernel-uek-devel.x86_64

yum install kernel-uek-debug-devel.x86_64

yum install "kernel-devel-uname-r == $(uname -r)"

yum install kernel-headers-$(uname -r)

yum install kernel-headers kernel-devel

Useful commands

package-cleanup --dupes ### list dupes

package-cleanup --cleandupes ### remove dups

yum history

yum-complete-transaction --cleanup-only

A better way to remove w/o taking dependances out

rpm -e --justdb --nodeps <package name>

yum install httpd <package name>

udev issue

cd /lib/systemd/system

egrep IPAddressDeny *

Comment out that line ... in systemd-udevd.service

Fix a hung package

yum list installed <package name> ### find the name to use 
  yum clean all

If a file will not update note the name and remove it (and sometimes dependences).

yum remove <package name>
  yum update

Additonal Cleanup for YUM

List Dependancy Problems
package-cleanup --problems
 

list installed packages which are not available from currently configured repositories
package-cleanup --orphans
For more detail: yum list extras
 

display the RPMs that are not relied upon by any other RPM
package-cleanup --leaves
 

Get newest kernel headers

yum install "kernel-devel-uname-r == $(uname -r)"
    yum install linux-headers-$(uname -r)

To disable the priorities plugin

edit /etc/yum/pluginconf.d/priorities.conf and set enabled = 0.
After this change, next time you run yum update, you should not get any priority protections.