Unable to install Review board on CentOS - centos

I created CentOS virtual OS in Hyper-V Manager on Windows 10 and set up appropriate proxy.
Then I followed guide here https://hostpresto.com/community/tutorials/how-to-install-review-board-on-centos-7-2/ and all is fine until I get to "sudo yum install ReviewBoard memcached -y", where I get error
'''
No match for argument: ReviewBoard".
'''
I googled the error but found no solution.

Related

Install GlusterFS on CentOS 8 not working

I am trying to install GlusterFS on CentOS 8 Vmware workstation, i am on a bridged network but everytime i attempy to download it i get this messsage. Is there another way to do this or to fix this issue?
at time of this post Gluster 8 (https://www.gluster.org/release-schedule/) is the current maintained version. So to install it you would do
dnf -y install centos-release-gluster8
Please note that you can find other versions in the extras repository which, as you see above, is enabled.

Google VM Instance Stopped Working after Upgrade

I have a google VM instance which was running flawlessly. It has Centos-7 and Plesk installed in it.
I just stopped it, upgraded machine type (to better CPU and RAM) and started it again. My server stopped responding at all. No websites are running, I can't connect to SSH & Google Cloud SDK Shell is unable to reach server. It says NETWORK ERROR, CONNECTION TIMED OUT. My all other instances works well.
I tried rebooting & resetting multiple times. Reading out stuff from internet since last 6 hours but for no luck. I also tried to clone disk of the instance and creating new instance with the cloned disk but for no luck. Same network connection issue. May be something in OS got corrupted? Please suggest. I have a number of websites hosted on the server which are down due to this. Thanks a lot in advance.
I took screenshot of my VM using Google Cloud Shell. It is as follows:
I connected with serial console which is as follows:
While creating a ticket with google, I found that they've posted some information under "Known Issues". I am pasting the whole stuff as there is no direct link to reach there. The symptoms they told were exactly what was happening to me:
Below is Known Issue Posted by Google:
Description:
We are experiencing an issue with Google Compute Engine instances running RHEL and CentOS 7 and 8. More details on this issue are available in the following article and bugs: https://access.redhat.com/solutions/5272311 https://bugzilla.redhat.com/show_bug.cgi?id=1861977 (RHEL 8) https://bugzilla.redhat.com/show_bug.cgi?id=1862045 (RHEL 7) Symptoms: Instances running RHEL and CentOS 7 and 8 that run yum update may fail to boot after restart with errors messages referring to a combination of: "X64 Exception Type - 0D(#GP - General Protection) CPU Apic ID", "FXSAVE_STATE" or "Find image based on IP". This issue affects instances with specific versions of the shim package installed. To find the currently installed shim version, use the following command: rpm -q shim-x64 Affected shim versions: CentOS 7: shim-x64-15-7.el7_9.x86_64 CentOS 8: shim-x64-15-13.el8.x86_64 RHEL 7: shim-x64-15-7.el7_8.x86_64 RHEL 8: shim-x64-15-14.el8_2.x86_64 Workaround: Do not update or reboot instances running RHEL or CentOS 7 and 8. If you are on an affected shim version, run yum downgrade shim\* grub2\* mokutil to downgrade to the correct version. This command may not work on CentOS 8. If you have already rebooted, you will need to attach the disk to another instance, chroot into the disk, then run the yum downgrade command. We will provide an update by Thursday, 2020-07-30 14:00 US/Pacific with current details.
Start time:
July 30, 2020 at 9:08:34 PM GMT+5
How to diagnose:
Instances running RHEL and CentOS 7 and 8 that run yum update may fail to boot after restart with errors messages referring to a combination of: "X64 Exception Type - 0D(#GP - General Protection) CPU Apic ID", "FXSAVE_STATE" or "Find image based on IP". This issue affects instances with specific versions of the shim package installed. To find the currently installed shim version, use the following command: rpm -q shim-x64 Affected shim versions: CentOS 7: shim-x64-15-7.el7_9.x86_64 CentOS 8: shim-x64-15-13.el8.x86_64 RHEL 7: shim-x64-15-7.el7_8.x86_64 RHEL 8: shim-x64-15-14.el8_2.x86_64
Workaround:
Do not update or reboot instances running RHEL or CentOS 7 and 8. If you are on an affected shim version, run yum downgrade shim\* grub2\* mokutil to downgrade to the correct version. This command may not work on CentOS 8. If you have already rebooted, you will need to attach the disk to another instance, chroot into the disk, then run the yum downgrade command.

How do I get PHP 7.1 to talk to PostgreSQL on RHEL 7?

Running a Laravel installation on a RedHat Enterprise Linux 7 server using PHP 7.1. I can see php-pgsql.x86_64 listed in the available yum packages, but it doesn't appear to be compatible with PHP 7.1 (and indeed is listed as version 5.4.16-43.el7_4.1).
On a lark, I tried installing it anyway and physically moved the pgsql.ini and pdo_pgsql.ini files from /etc/php.d into the relevant PHP 7.1 folder /etc/opt/rh/rh-php71/php.d/ (and did the same with the .so files they reference), but that returns an error indicating that the package couldn't be read (undefined symbol: file_globals_id in Unknown on line 0).
Has anyone managed to get PHP 7.1 talking to PostgreSQL on RHEL 7?
The sysadmin who originally created the server for me set me straight. The problem was I was looking in the wrong repository for the packages I needed for my particular PHP installation. Running the following two commands did the trick:
sudo yum install --disablerepo=* --enablerepo=rhui-REGION-rhel-server-rhscl rh-php71-php-odbc
sudo yum install --disablerepo=* --enablerepo=rhui-REGION-rhel-server-rhscl rh-php71-php-pgsql
We then added those two packages to the Ansible playbook so future generations would not suffer needlessly.

How to install pre-requisites for Hyperledger Composer on Windows10

I am following the tutorial for Hyperledger Composer. I'm trying to install the pre-requisites for the Composer as outlined here:
https://hyperledger.github.io/composer/installing/installing-prereqs.html
The instructions are only provided for Ubuntu or Mac, and I have Win10 machine with Docker 17.12.x
So I got Ubuntu 16.04 docker image, added curl. I got the prereqs-ubuntu.sh script, I login as blockchain user, and run the script, but I get this error:
#Updating package lists
-sudo apt-add-repository: command not found
Is it even possible to install Hperledger Composer on a Windows 10 machine?!
No it is not possible to install Hyperledger Composer on windows which includes the Windows Subsystem for Linux and other environments like MinGW that simulate a linux environment. This platform is not supported at this time. I recommend you use a hypervisor such as VirtualBox or if you are using Windows 10 Professional, the built in Hyper-V support to run a Linux virtual machine where you can install Hyperledger Composer. Also we recommend using ubuntu 16.04 as this is the level we test with most.

Download RPM on Windows PC then install on Centos server

I'm really stuck in installing services in Centos server. I almost browse all the pages in Google result. I'm a Windows user and very new in Linux environment, so it makes me difficult to understand all the results from Google.
The server doesn't have option to connect to the internet. Based on my research, my only way is to download all the RPM files in a machine with internet then transfer it to my server.
Problem: I cannot find the official package list of YUM so I can download it one by one like the https://bower.io/search/. There's a lot of downloadable files showing if I type in Google "YUM php7 rpm".
Edit: I am currently using YUM because I don't know any other way to install packages in Centos. I only want to install the following :
php7
nodejs
composer
supervisor
nginx
I don't have any access to any media. I just remotely access it via putty and Filezilla. But I have root access.