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Python 3.7 And 2.7 Installation Steps On Windows 10

Changing python default versions on fedora 27?

Python websockets installation is failed on fedora linux

Network Basics

Document Clustering

Clustering Techniques

SQL Injection and Prevention Techniques

Google Form Intro and App Scripts

Download in Youtube using Youtube-dl commands

Java Network Launch Protocol File Launch Issue

javaws command is not working

Forcing Website with HTTPS instead of HTTP

Cricket Scores API's

Design Patterns

IIS Installation and Configuration on Windows 10

Unable to start debugging on the web server (IIS Error Code 405)

Google Chrome Installation on Fedora 26, CentOS / RHEL 7.4

Install Fedora 26 On Virtual Machine Using VirtualBox in Windows 10

Using screen command in fedora 25

Java JDK 1.8 Installation Steps On Windows 10

Enable Permanent SSH Access on Linux

C Program Undefined Reference Error

Curl error and couldn't resolve hostname fedora mirrors

Installing Android Studio in Windows 10

Resetting Root password on Fedora 26

Installing visual studio code editor steps for fedora 27 / centos 7 / RHEL 7

Java JNI Error UnsupportedClassVersionError in Windows 10

Install virt-customize in RHEL 8

Updating qcow2 image in RHEL 8

Remove the files from dir in another dir

Install virtualenv in RHEL 7

Install Scapy in RHEL 7

SQL ACID properties

Updating qcow2 image using virt-customize in Linux (RHEL 8/ Fedora / CentOS)



Updating qcow2 image using virt-customize in Linux (RHEL 8)

Please use this link to install virt-customize in linux (RHEL 8)

Setting the root password for qcow2 image,

$ virt-customize -a overcloud-full.qcow2 --root-password password:test
[   0.0] Examining the guest ...
libvirt: XML-RPC error : Cannot recv data: Connection reset by peer
virt-customize: error: libguestfs error: could not connect to libvirt (URI
= qemu:///session): Cannot recv data: Connection reset by peer [code=38
int1=104]

If reporting bugs, run virt-customize with debugging enabled and include
the complete output:

  virt-customize -v -x [...]
  

Checking the status of libvirtd daemon,

$ systemctl status libvirtd
● libvirtd.service - Virtualization daemon
   Loaded: loaded (/usr/lib/systemd/system/libvirtd.service; enabled; vendor preset: enabled)
   Active: inactive (dead)
 	Docs: man:libvirtd(8)
       	https://libvirt.org
       	

Starting libvirtd and enabling default,

$ sudo systemctl enable libvirtd
$ sudo systemctl start libvirtd

Now set the qcow2 image root password,

$ virt-customize -a overcloud-full.qcow2 --root-password password:test
[   0.0] Examining the guest ...
libvirt: XML-RPC error : Cannot recv data: Connection reset by peer
virt-customize: error: libguestfs error: could not connect to libvirt (URI
= qemu:///session): Cannot recv data: Connection reset by peer [code=38
int1=104]

If reporting bugs, run virt-customize with debugging enabled and include
the complete output:

  virt-customize -v -x [...]
  

need to export LIBGUESTFS_BACKEND and $LIBVIRT_DEFAULT_URI if not set

$  export LIBGUESTFS_BACKEND=direct
$ echo $LIBVIRT_DEFAULT_URI

$ export LIBVIRT_DEFAULT_URI=qemu:///system
$ echo $LIBVIRT_DEFAULT_URI
qemu:///system

trying again,

$ virt-customize -a overcloud-full.qcow2 --root-password password:test
[   0.0] Examining the guest ...
[  12.5] Setting a random seed
[  12.5] Setting the machine ID in /etc/machine-id
[  12.5] Setting passwords
[  15.2] Finishing off

Installing a package in qcow2 image

virt-customize -a $1.qcow2 --run-command 'yum install -y wget'

Removing a installed package in qcow2 image

 virt-customize -a $1.qcow2 --run-command 'yum remove wget'
 

Updating qcow2 image using guestfish

Updating qcow2 image using guestfish,

$ guestfish -a  overcloud-full.qcow2

Welcome to guestfish, the guest filesystem shell for
editing virtual machine filesystems and disk images.

Type: ‘help’ for help on commands
  	‘man’ to read the manual
  	‘quit’ to quit the shell

><fs> run
><fs> mount /dev/sda /
><fs> vi /etc/default/grub
------------------
save the changes
><fs> exit

 Blog

Python 3.7 And 2.7 Installation Steps On Windows 10

Changing python default versions on fedora 27?

Python websockets installation is failed on fedora linux

Network Basics

Document Clustering

Clustering Techniques

SQL Injection and Prevention Techniques

Google Form Intro and App Scripts

Download in Youtube using Youtube-dl commands

Java Network Launch Protocol File Launch Issue

javaws command is not working

Forcing Website with HTTPS instead of HTTP

Cricket Scores API's

Design Patterns

IIS Installation and Configuration on Windows 10

Unable to start debugging on the web server (IIS Error Code 405)

Google Chrome Installation on Fedora 26, CentOS / RHEL 7.4

Install Fedora 26 On Virtual Machine Using VirtualBox in Windows 10

Using screen command in fedora 25

Java JDK 1.8 Installation Steps On Windows 10

Enable Permanent SSH Access on Linux

C Program Undefined Reference Error

Curl error and couldn't resolve hostname fedora mirrors

Installing Android Studio in Windows 10

Resetting Root password on Fedora 26

Installing visual studio code editor steps for fedora 27 / centos 7 / RHEL 7

Java JNI Error UnsupportedClassVersionError in Windows 10

Install virt-customize in RHEL 8

Updating qcow2 image in RHEL 8

Remove the files from dir in another dir

Install virtualenv in RHEL 7

Install Scapy in RHEL 7

SQL ACID properties

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