The periodic table of Cloud Computing.
Source:
The periodic table of Cloud Computing.
The periodic table of Cloud Computing.
Source:
El Volcán Paricutín.
#UnDíaComoHoy pero de 1943, aparece en Michoacán el Paricutín, el volcán más joven del continente americano. #CalendarioCívico pic.twitter.com/rrcEDWGNjT
— Calendario Cívico (@EFEMERIDESMX) February 20, 2019
19 de Febrero, Día del Ejército Nacional Mexicano
#UnDíaComoHoy pero de 1913, por decreto del gobierno del estado de Coahuila, se establece el #DíaDelEjércitoNacional, con éste, Venustiano Carranza llama a los mexicanos a construir una fuerza de ciudadanos armados para defender a la patria. #CalendarioCívico pic.twitter.com/xPYw6wgpgU— Calendario Cívico (@EFEMERIDESMX) February 19, 2019
10 de febrero, día de la Fuerza Aérea Mexicana
El 8 de enero de 1910, al despegar la aeronave Voisin de Alberto Braniff de los Llanos de Balbuena, al este de la Ciudad de México, aquella planicie se convirtió en el primer campo aéreo del país. Posteriormente, el 5 de febrero de 1915, el Presidente Venustiano Carranza convencido de la importancia de la aviación, creó mediante acuerdo el arma de Aviación Militar; así la Secretaría de Guerra y Marina fue designada para construir un local apropiado para establecer en él los talleres, mientras que la Secretaría de Comunicaciones y Obras Públicas consolidó el área de rodaje y levantó el primer hangar. Así nació el Aeródromo Nacional de Balbuena.
#UnDíaComoHoy se conmemora el “Día de la Fuerza Aérea Mexicana”, en 1944 la aviación militar adquiere el carácter constitucional de Fuerza Armada. Conoce más de este hecho histórico en: https://t.co/xZnEzNrbau pic.twitter.com/0GUJ4Q0E4j— SEDENA México (@SEDENAmx) February 10, 2019
Fue hasta el 10 de febrero de 1992, cuando por Decreto Presidencial se estableció oficialmente el 10 de febrero de cada año como el día de la Fuerza Aérea Mexicana.
Trying to remove GNOME from CentOS 7
I have a CentOS 7 VM running using VirtualBox 6.4.
After doing an usual installation for a "usual" user (Internet/Office/Sound and Video/etc applications) I tried to modify it by disabling gdm/installing enabling lightdm, installing Cinnamon.
Openbox is the faster loading after providing user/pass but... I don't want to spend time trying to configure it, also skipped MATE 'cause already using it on another VM.
I'm trying Cinnamon and until now looks great but I don't want to keep the "Gnome Desktop" and all the packages related and after searching options how to remove it completely without breaking anything else I couldn't.
I found options like: yum groupremove "GNOME Desktop"
And got this message:
"No group named GNOME Desktop exists
Maybe run: yum groups mark remove (see man yum)
No packages to remove from groups"
I found a link providing an option, to add this line to /etc/yum.conf: group_command=simple
just after the last line of the "main" section.
When I tried to remove the group again, apparently worked until it tried to remove yum and another package, can't remember which one exactly and failed. I restarted the VM just to confirm that everything was working as expected (previously I created a snapshot of the VM ).
Another link came up providing an alternative, to remove specific packages that won't affect anything but also won't remove packages that probably I'm not going to use and are going to be part of upgrades:
yum remove gnome-classic-session gnome-session-xsession
This is going to remove Gnome/Gnome classic from the options to log in, not exactly what I want but still a good alternative (and I added an option to yum by installing the plugin (yum-plugin-remove-with-leaves):
# yum remove gnome-classic-session gnome-session-xsession --remove-leaves
Loaded plugins: fastestmirror, langpacks, remove-with-leaves
Resolving Dependencies
--> Running transaction check
---> Package gnome-classic-session.noarch 0:3.28.1-5.el7 will be erased
---> Package gnome-session-xsession.x86_64 0:3.28.1-6.el7 will be erased
--> Finished Dependency Resolution
removing gnome-shell-extension-alternate-tab-3.28.1-5.el7.noarch. It is not required by anything else.
removing gnome-shell-extension-apps-menu-3.28.1-5.el7.noarch. It is not required by anything else.
removing gnome-shell-extension-launch-new-instance-3.28.1-5.el7.noarch. It is not required by anything else.
removing gnome-shell-extension-places-menu-3.28.1-5.el7.noarch. It is not required by anything else.
removing gnome-shell-extension-top-icons-3.28.1-5.el7.noarch. It is not required by anything else.
removing gnome-shell-extension-window-list-3.28.1-5.el7.noarch. It is not required by anything else.
--> Running transaction check
---> Package gnome-shell-extension-alternate-tab.noarch 0:3.28.1-5.el7 will be erased
---> Package gnome-shell-extension-apps-menu.noarch 0:3.28.1-5.el7 will be erased
---> Package gnome-shell-extension-launch-new-instance.noarch 0:3.28.1-5.el7 will be erased
---> Package gnome-shell-extension-places-menu.noarch 0:3.28.1-5.el7 will be erased
---> Package gnome-shell-extension-top-icons.noarch 0:3.28.1-5.el7 will be erased
---> Package gnome-shell-extension-window-list.noarch 0:3.28.1-5.el7 will be erased
--> Finished Dependency Resolution
Dependencies Resolved
=====================================================================================================================
Package Arch Version Repository Size
=====================================================================================================================
Removing:
gnome-classic-session noarch 3.28.1-5.el7 @base 201 k
gnome-session-xsession x86_64 3.28.1-6.el7 @updates 7.4 k
gnome-shell-extension-alternate-tab noarch 3.28.1-5.el7 @base 9.4 k
gnome-shell-extension-apps-menu noarch 3.28.1-5.el7 @base 31 k
gnome-shell-extension-launch-new-instance noarch 3.28.1-5.el7 @base 4.9 k
gnome-shell-extension-places-menu noarch 3.28.1-5.el7 @base 26 k
gnome-shell-extension-top-icons noarch 3.28.1-5.el7 @base 11 k
gnome-shell-extension-window-list noarch 3.28.1-5.el7 @base 55 k
Transaction Summary
=====================================================================================================================
Remove 8 Packages
Installed size: 346 k
Is this ok [y/N]: y
Downloading packages:
Running transaction check
Running transaction test
Transaction test succeeded
Running transaction
Erasing : gnome-classic-session-3.28.1-5.el7.noarch 1/8
Erasing : gnome-shell-extension-alternate-tab-3.28.1-5.el7.noarch 2/8
Erasing : gnome-shell-extension-apps-menu-3.28.1-5.el7.noarch 3/8
Erasing : gnome-shell-extension-launch-new-instance-3.28.1-5.el7.noarch 4/8
Erasing : gnome-shell-extension-places-menu-3.28.1-5.el7.noarch 5/8
Erasing : gnome-shell-extension-top-icons-3.28.1-5.el7.noarch 6/8
Erasing : gnome-shell-extension-window-list-3.28.1-5.el7.noarch 7/8
Erasing : gnome-session-xsession-3.28.1-6.el7.x86_64 8/8
Verifying : gnome-shell-extension-window-list-3.28.1-5.el7.noarch 1/8
Verifying : gnome-shell-extension-alternate-tab-3.28.1-5.el7.noarch 2/8
Verifying : gnome-shell-extension-launch-new-instance-3.28.1-5.el7.noarch 3/8
Verifying : gnome-shell-extension-places-menu-3.28.1-5.el7.noarch 4/8
Verifying : gnome-shell-extension-top-icons-3.28.1-5.el7.noarch 5/8
Verifying : gnome-session-xsession-3.28.1-6.el7.x86_64 6/8
Verifying : gnome-classic-session-3.28.1-5.el7.noarch 7/8
Verifying : gnome-shell-extension-apps-menu-3.28.1-5.el7.noarch 8/8
Removed:
gnome-classic-session.noarch 0:3.28.1-5.el7
gnome-session-xsession.x86_64 0:3.28.1-6.el7
gnome-shell-extension-alternate-tab.noarch 0:3.28.1-5.el7
gnome-shell-extension-apps-menu.noarch 0:3.28.1-5.el7
gnome-shell-extension-launch-new-instance.noarch 0:3.28.1-5.el7
gnome-shell-extension-places-menu.noarch 0:3.28.1-5.el7
gnome-shell-extension-top-icons.noarch 0:3.28.1-5.el7
gnome-shell-extension-window-list.noarch 0:3.28.1-5.el7
Complete!
# yum remove gnome-classic-session gnome-session-xsession --remove-leaves
Loaded plugins: fastestmirror, langpacks, remove-with-leaves
Resolving Dependencies
--> Running transaction check
---> Package gnome-classic-session.noarch 0:3.28.1-5.el7 will be erased
---> Package gnome-session-xsession.x86_64 0:3.28.1-6.el7 will be erased
--> Finished Dependency Resolution
removing gnome-shell-extension-alternate-tab-3.28.1-5.el7.noarch. It is not required by anything else.
removing gnome-shell-extension-apps-menu-3.28.1-5.el7.noarch. It is not required by anything else.
removing gnome-shell-extension-launch-new-instance-3.28.1-5.el7.noarch. It is not required by anything else.
removing gnome-shell-extension-places-menu-3.28.1-5.el7.noarch. It is not required by anything else.
removing gnome-shell-extension-top-icons-3.28.1-5.el7.noarch. It is not required by anything else.
removing gnome-shell-extension-window-list-3.28.1-5.el7.noarch. It is not required by anything else.
--> Running transaction check
---> Package gnome-shell-extension-alternate-tab.noarch 0:3.28.1-5.el7 will be erased
---> Package gnome-shell-extension-apps-menu.noarch 0:3.28.1-5.el7 will be erased
---> Package gnome-shell-extension-launch-new-instance.noarch 0:3.28.1-5.el7 will be erased
---> Package gnome-shell-extension-places-menu.noarch 0:3.28.1-5.el7 will be erased
---> Package gnome-shell-extension-top-icons.noarch 0:3.28.1-5.el7 will be erased
---> Package gnome-shell-extension-window-list.noarch 0:3.28.1-5.el7 will be erased
--> Finished Dependency Resolution
Dependencies Resolved
=====================================================================================================================
Package Arch Version Repository Size
=====================================================================================================================
Removing:
gnome-classic-session noarch 3.28.1-5.el7 @base 201 k
gnome-session-xsession x86_64 3.28.1-6.el7 @updates 7.4 k
gnome-shell-extension-alternate-tab noarch 3.28.1-5.el7 @base 9.4 k
gnome-shell-extension-apps-menu noarch 3.28.1-5.el7 @base 31 k
gnome-shell-extension-launch-new-instance noarch 3.28.1-5.el7 @base 4.9 k
gnome-shell-extension-places-menu noarch 3.28.1-5.el7 @base 26 k
gnome-shell-extension-top-icons noarch 3.28.1-5.el7 @base 11 k
gnome-shell-extension-window-list noarch 3.28.1-5.el7 @base 55 k
Transaction Summary
=====================================================================================================================
Remove 8 Packages
Installed size: 346 k
Is this ok [y/N]: y
Downloading packages:
Running transaction check
Running transaction test
Transaction test succeeded
Running transaction
Erasing : gnome-classic-session-3.28.1-5.el7.noarch 1/8
Erasing : gnome-shell-extension-alternate-tab-3.28.1-5.el7.noarch 2/8
Erasing : gnome-shell-extension-apps-menu-3.28.1-5.el7.noarch 3/8
Erasing : gnome-shell-extension-launch-new-instance-3.28.1-5.el7.noarch 4/8
Erasing : gnome-shell-extension-places-menu-3.28.1-5.el7.noarch 5/8
Erasing : gnome-shell-extension-top-icons-3.28.1-5.el7.noarch 6/8
Erasing : gnome-shell-extension-window-list-3.28.1-5.el7.noarch 7/8
Erasing : gnome-session-xsession-3.28.1-6.el7.x86_64 8/8
Verifying : gnome-shell-extension-window-list-3.28.1-5.el7.noarch 1/8
Verifying : gnome-shell-extension-alternate-tab-3.28.1-5.el7.noarch 2/8
Verifying : gnome-shell-extension-launch-new-instance-3.28.1-5.el7.noarch 3/8
Verifying : gnome-shell-extension-places-menu-3.28.1-5.el7.noarch 4/8
Verifying : gnome-shell-extension-top-icons-3.28.1-5.el7.noarch 5/8
Verifying : gnome-session-xsession-3.28.1-6.el7.x86_64 6/8
Verifying : gnome-classic-session-3.28.1-5.el7.noarch 7/8
Verifying : gnome-shell-extension-apps-menu-3.28.1-5.el7.noarch 8/8
Removed:
gnome-classic-session.noarch 0:3.28.1-5.el7
gnome-session-xsession.x86_64 0:3.28.1-6.el7
gnome-shell-extension-alternate-tab.noarch 0:3.28.1-5.el7
gnome-shell-extension-apps-menu.noarch 0:3.28.1-5.el7
gnome-shell-extension-launch-new-instance.noarch 0:3.28.1-5.el7
gnome-shell-extension-places-menu.noarch 0:3.28.1-5.el7
gnome-shell-extension-top-icons.noarch 0:3.28.1-5.el7
gnome-shell-extension-window-list.noarch 0:3.28.1-5.el7
Complete!
Before all this mess with the VM, I tried doing a minimal installation of CentOS using an old laptop:
1.- Minimal installation of CentOS
2.- yum install epel-release
3.- yum groupinstall "X Window System"
4.- yum install lightdm ; systemctl disable gdm.service ; systemctl enable lightdm.service
5.- yum install cinnamon
6.- yum install firefox
7.- yum install gnome-terminal ; yum install xterm
Reboot, log in and it's good for that old laptop but not enough yet, when I start a gnome-terminal the fonts look horrible but xterm works just fine. I didn't try installing fonts, probably will have to install Gnome packages which from beginning I'm trying to avoid.
If you know how to remove all the Gnome packages without breaking it (specifically for CentOS Linux release 7.6.1810 ) or which steps/packages follow/install to get a decent GUI please let me know. It would be nice to have a light VM. I don't need the office packages but system administration, internet,
TIA.
La Constitución Mexicana de 1917
El 5 de febrero de 1917 fue promulgada la Constitución Política de los Estados Unidos Mexicanos por el presidente constitucionalista Venustiano Carranza, como producto de los movimientos revolucionarios de 1910.
Fue la primera Constitución de la historia que incluyó derechos sociales (artículos 3, 27 y 123) producto de la Revolución mexicana.
La Constitución de 1917, consta de 137 artículos que definen lo que significa la ciudadanía, la organización de un gobierno, la reforma agraria, y enumeran una serie de derechos humanos básicos para todos los mexicanos.
Tuvo como precedentes la Constitución de Apatzingán de 1814, la Constitución de 1824 y la Constitución de 1857. Los cambios principales se encuentran la eliminación de la reelección del Presidente de la República y del cargo de vicepresidente.
Fuentes:
https://culturacolectiva.com/historia/la-constitucion-de-1917-un-documento-historico-que-sigue-vivo
https://www.loc.gov/exhibits/mexican-revolution-and-the-united-states/constitution-1917-sp.html
https://es.wikipedia.org/wiki/Constitución_Política_de_los_Estados_Unidos_Mexicanos
Fuentes:
https://culturacolectiva.com/historia/la-constitucion-de-1917-un-documento-historico-que-sigue-vivo
https://www.loc.gov/exhibits/mexican-revolution-and-the-united-states/constitution-1917-sp.html
https://es.wikipedia.org/wiki/Constitución_Política_de_los_Estados_Unidos_Mexicanos
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