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Requirements
One will always need This method will work best with a connected computer with same OS and Version in order to ascertain the dependent packages that need to be downloaded by the Package Manager for the disconnected (air-gapped) computer.
sudo will only be used when necessary.
Centos 7 Example
On Redhat and Centos OS, tar and libnsl may need to be pre-installed as they are needed to unpack the installer runfile
:# Navigate.
On the disconnected (air-gapped) computer we will firstly determine which pre-installation required packages need to be downloaded:
cd dependency: /bin/sh# Navigate to a clean directory to download packages to
mkdir -p /tmp/omk_opXyz_packages
provider: bash.x86_64
;cd /tmp/omk_opXyz_packages/
# Extract the list of dependent packages - I've used sort and formatted the results
# to make the needed comparison to those packages already installed easier:
# to see the unsorted results run command yum -q deplist tar
package: tar.x86_64 2:1.26-35.el7provider: libacl.x86_64
dependency: /sbin/install-info
yum -q deplist tar|grep -e "package:" -e "provider:"|sed -r -e 's/^\s*(package|provider):\s+(.+?)$/\2/' -e 's/ /\t\t\t\t/'|sort|uniqbash.x86_64 4.2.46-34.el7
provider: info.x86_64 5.1-5.el7
dependency: libacl.so.1()(64bit)
provider: glibc.x86_64
dependency: libacl.so.1(ACL_1.0)(64bit)glibc.i686 2.17-307.el7.1
glibc.x86_64 2.17-307.el7.1info.x86_64 5.1-5.el7libacl.x86_64 2.2.51-15.el7
provider: libacl.x86_64 2.2.51-15.el7
dependency: libc.so.6(GLIBC_2.17)(64bit)libselinux.x86_64 2.5-15.el7tar.x86_64 2:1.26-35.el7
# libnsl is not needed in this example as no package is returned:
yum -q deplist libnsl# Now we grep from the list yum returns of installed packages THAT WE ALREADY HAVE on this disconnected (air-gapped) computer
yum list installed|grep -e tar.x86_64 -e "^bash.x86_64" -e "^info.x86_64" -e "^libacl.x86_64" -e "^libacl.x86_64" -e "^glibc.x86_64" -e "^libselinux.x86_64" -e "^glibc.x86_64" -e "^glibc.i686"|sortbash.x86_64 4.2.46-34.el7 @anaconda
glibc.x86_64 2.17-307.el7.1 @anaconda
info.x86_64 5.1
dependency: libselinux.so.1()(64bit)
provider: libselinux.x86_64 2.5-15.el7
dependency: rtld(GNU_HASH)
provider: glibc.x86_64 2-5.el7 @anaconda
libacl.x86_64 2.2.51-15.el7 @anaconda
libselinux.x86_64 2.5-15.el7 @anaconda
tar.x86_64 2:1.26-35.el7 @anaconda
# I have crossed out the packages this disconnected (air-gapped) computer already has up to date versions of, which leaves us with the following packages needed:glibc.i686 2.17-307.el7.1
Using the connected computer with same OS and Version we will firstly fetch the pre-installation required packages
On the disconnected (air-gapped) computer we will firstly determine which pre-installation required packages need to be downloaded:
provider: glibc.i686 2.17-307.el7.1# Navigate to a clean directory to download packages to
mkdir -p /tmp/omk_opXyz_packages
cd /tmp/omk_opXyz_packages/
# Extract the list of dependent packages - I've used sort and formatted the results
# to make the needed comparison to those packages already installed easier:
# to see the unsorted results run command yum -q deplist tar
yum -q deplist tar|grep -e "package:" -e "provider:"|sed -r -e 's/^\s*(package|provider):\s+(.+?)$/\2/' -e 's/ /\t\t\t\t/'|sort|uniqbash.x86_64 4.2.46-34.el7
glibc.i686 2.17-307.el7.1glibc.x86_64 2.17-307.el7.1
# Download each of the dependent packages - I've included duplicates in this example:info.x86_64 5.1-5.el7libacl.x86_64 2.2.51-15.el7libselinux.x86_64 2.5-15.el7tar.x86_64 2:1.26-35.el7
# libnsl is not needed in this example as no package is returned:
yum -q deplist libnsl
yumdownloader tar.x86_64 bash.x86_64 info.x86_64 libacl.x86_64 libacl.x86_64 glibc.x86_64 libselinux.x86_64 glibc.x86_64# Now we grep from the list yum returns of installed packages THAT WE ALREADY HAVE on this disconnected (air-gapped) computer
yum list installed|grep -e tar.x86_64 -e "^bash.x86_64" -e "^info.x86_64" -e "^libacl.x86_64" -e "^libacl.x86_64" -e "^glibc.x86_64" -e "^libselinux.x86_64" -e "^glibc.x86_64" -e "^glibc.i686"|sortbash.x86_64 4.2.46-34.el7 @anaconda
glibc.x86_64 2.17-307.el7.1 @anaconda
info.x86_64 5.1-5.el7 @anaconda
libacl.x86_64 2.2.51-15.el7 @anaconda
libselinux.x86_64 2.5-15.el7 @anaconda
tar.x86_64 2:1.26-35.el7 @anaconda
# I have crossed out the packages this disconnected (air-gapped) computer already has up to date versions of, which leaves us with the following packages needed:glibc.i686 2.17-307.el7.1
Using the connected computer with same OS and Version we will firstly fetch the pre-installation required packages
# Download each of the dependent packages - I've included duplicates in this example:
yumdownloader glibc.i686Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
epel/x86_64/metalink | 2.8 kB 00:00:00
* base: mirror.ventraip.net.au
* epel: mirror.aarnet.edu.au
* extras: mirror.ventraip.net.au
* updates: mirror.ventraip.net.au
base | 3.6 kB 00:00:00
epel | 4.7 kB 00:00:00
extras | 2.9 kB 00:00:00
updates | 2.9 kB 00:00:00
ignoring a dupe of libacl-2.2.51-15.el7.x86_64
ignoring a dupe of glibc-2.17-307.el7.1.x86_64
(1/7): libacl-2.2.51-15.el7.x86_64.rpm | 27 kB 00:00:00
(2/7): bash-4.2.46-34.el7.x86_64.rpm | 1.0 MB 00:00:00
(3/7): libselinux-2.5-15.el7.x86_64.rpm | 162 kB 00:00:00
(4/7): info-5.1-5.el7.x86_64.rpm | 233 kB 00:00:00
(5/7): tar-1.26-35.el7.x86_64.rpm | 846 kB 00:00:00
(6/7): glibc-2.17-307.el7.1.i686.rpm | 4.3 MB 00:00:01
(7/7): glibc-2.17-307.el7.1.x86_64.rpm# Downloaded packages will now be in the current directory:
ls -la-rw-r--r--. 1 root root 1037976 Apr 3 20:49 bash-4.2.46-34.el7.x86_64.rpm
-rw-r--r--. 1 root root 4463036 Apr 3 21:12 glibc-2.17-307.el7.1.i686.rpm
-rw-r--r--. 1 root root 3815032 Apr 3 20:52 glibc-2.17-307.el7.1.x86_64.rpm
-rw-r--r--. 1 root root 238564 Apr 25 2018 info-5.1-5.el7.x86_64.rpm
-rw-r--r--. 1 root root 27976 Apr 3 20:55 libacl-2.2.51-15.el7.x86_64.rpm
-rw-r--r--. 1 root root 166012 Apr 3 20:59 libselinux-2.5-15.el7.x86_64.rpm
-rw-r--r--. 1 root root 865848 Nov 12 2018 tar-1.26-35.el7.x86_64.rpm