Fedora installation on my new laptop!


Two days ago I received a new laptop from Extraordy.
It’s a DELL Inspiron 7386 with a valid processor,memory and nvme disk.

I initially was not able to install Fedora because the system did not see the disk. Looking to the BIOS/UEFI I changed a SATA parameter, from RAID to AHCI.
The boot after I succesfully installed Fedora.
This is how actually the system recognizes the disk:

[root@asuka ~]# fdisk -l
Disk /dev/nvme0n1: 238.5 GiB, 256060514304 bytes, 500118192 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: gpt
Disk identifier: 326AD1E9-8032-4E34-B4F3-3FA0CF174EE7

Device Start End Sectors Size Type
/dev/nvme0n1p1 2048 411647 409600 200M EFI System
/dev/nvme0n1p2 411648 2508799 2097152 1G Linux filesystem
/dev/nvme0n1p3 2508800 499017727 496508928 236.8G Linux LVM

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IBM acquired Redhat


Yesterday night I got the news, Redhat has been acquired by IBM. I still can’t believe it.
I already saw what happened when ORACLE acquired Sun Microsystems and I hope to not see someting like that again.
Starting from the 1 November I’ll begin to work for Extraordy and I’m a bit worried. Jboss and GFS could die but what about the opensource? Redhat is one of the biggest opensource players in the world.
What’ll happen? It seems for 1 year nothing should change and later Redhat should be autonomous. Let’s see.
In the meanwhile I need 1 exam to reach the RHCA level and I will work for it. After I’d like to learn GCP or AWS, or both.
Honestly I begin to think that IT it’s too dynamic, you work hard planning a path and in a short time everything changed.

Redhat Satellite 6.3: new virt-who configuration via dashboard


One of the new features of Satellite 6.3 is the virt-who configuration from the dashboard.
In the 6.2 release, for example, you must manually install the virt-who service and create configuration files under /etc/virt-who.d directory.

From the 6.3 release you can deal with virt-who from the new dashboard menu:

 

 

After the configuration, you will have two options:

1) Run an hammer command for the configuration

2) Copy and paste a script to the system. This will install virt-who service, will create the configuration file under /etc/virt-who.d and will start the service. I played with the second choice, cool! 🙂
In this case you automatically have the encrypted password inside the configuration file.

Meet a Sun Microsystems guy in the gym


Yesterday I was training in the gym when I saw a guy with a Sun Microsystems t-shirt. I tought “WHAT, I must ask him about that t-shirt”.
I spoke with him and I knew he was an ex-technician in Sun Microsystems Italy. I asked his name and after I said “we spoke via mails and tickets”. In that moment I realized I had in front of me one of the most famous Solaris italian guru!!! I wanted to ask him multiple questions but I did not want to bother him 🙂
Unfortunately he left Oracle for another company, we spoke a bit about Solaris old times. How nostalgic!!

Redhat Satellite 6.3 installation useful tips


Have you read Redhat Satellite 6.3 installation guide?

I usually like to read installation guides because they are full of useful tips! In this case I learned new interesting things about I/O performance for Satellite:

1) foreman-maintain utility. It checks the disk speed for Satellite /var sub-filesystems, for example:

# foreman-maintain upgrade check --target-version 6.2.z
...
Check for recommended disk speed of pulp, mongodb, pgsql dir.:
\ Finished
Disk speed : 80 MB/sec [OK]

( Take care about planning /var filesystem for your Satellite/Capsule installation. It will be one of the most stressed filesystems due the requested I/O )

2) The fantastic fio command! The previous ‘foreman-maintain’ utility uses fio command for the benchmarks. At the beginning it’s not easy to understand but it’s very powerful.
I suggest you to read more about fio and Satellite benchmarks checking this Redhat solution.
Let me know about your thoughts! 🙂

Second blog opened!


Information Technology is one of my greater passions. Another one is to travel.. when I combine traveling and working together I feel myself excited like a child 🙂
From August I’m working on a second blog, http://www.enjoythestory.blog
My idea is to collect travel experiences and to share them between the users. I love to share vacations details and to read about them from other people.
If you like to share, let me know about it! I will create an account for you and you will publish everything u want. I need help because I will not have such a free time during the new job.
I’m waiting you!