Monthly Archives: April 2020

CentOS 8 v @OracleLinux 8 v IBMredhat 8 network install #devops #sysadmin

CentOS 7/8 network install

it just works ! and autodetects yum repo installation source



OracleLinux 7/8 network install

you need to manually setup the yum repo installation source


IBMredhat 7/8 network install


A) you need a ibm red hat subscription (or ‘free’ developer subscription)

B) even if you have a subscription you need to create your own yum repo server

so you have to install everything from your subscription DVD instead

oracle linux 7 & oracle linux 8 bonus repos

oracle linux 7 & oracle linux 8 bonus repos

oracle linux 7 repos

  • addons
  • developer
  • developer_EPEL
  • latest
  • software_collections

oracle linux 7 yum install

# yum install oraclelinux-developer-release-el7
# yum install oracle-epel-release-el7

oracle linux 7 yum repolist

# yum repolist
Loaded plugins: langpacks, ulninfo
repo id repo name status
ol7_addons/x86_64         Oracle Linux 7Server Add ons (x86_64) 411
ol7_developer/x86_64      Oracle Linux 7Server Development Packages (x86_64)                                    1,254
ol7_developer_EPEL/x86_64 Oracle Linux 7Server Development Packages (x86_64) 31,355
ol7_latest/x86_64         Oracle Linux 7Server Latest (x86_64) 16,661
ol7_software_collections/x86_64  Software Collection Library release 3.0 packages for Oracle Linux 7 (x86_64) 14,433

oracle linux 7 docs

oracle linux 8 repos

  • appstream
  • baseos
  • developer
  • developer_EPEL

oracle linux 8 repo docs

oracle linux 8 yum install

# yum install oraclelinux-developer-release-el8
# yum install oracle-epel-release-el8

oracle linux 8 yum repolist

# yum repolist
Last metadata expiration check: 0:07:13 ago on Mon 06 Apr 2020 14:26:26 EDT.
repo id repo name status
ol8_appstream      Oracle Linux 8 Application Stream (x86_64) 11,621
ol8_baseos_latest  Oracle Linux 8 BaseOS Latest (x86_64) 4,652
ol8_developer      Oracle Linux 8 Development Packages (x86_64)                                        29
ol8_developer_EPEL Oracle Linux 8 EPEL Packages for Development (x86_64) 594


oracle linux 7 podman install

oracle linux 7 podman install

# yum install oracle-softwarecollection-release-el7 
# yum install yum-utils
# yum-config-manager --enable ol7_addons 

oracle linux 7 podman install podman and slirp4netns

# yum install podman
# yum install slirp4netns

then enable user namespaces

# echo "user.max_user_namespaces=10000" > /etc/sysctl.d/userns.conf
# sysctl -p /etc/sysctl.d/userns.conf

then add user

# useradd -m $USER

then login as $USER

$ podman images

goog firebase dynamic deep links

goog firebase dynamic / deep / links

goog firebase console

previous you could have used