Ubuntu: Difference between revisions

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= Installation =
= Installation =
*[https://ubuntu.com/server/docs/install/netboot-amd64 Netboot/PXE installation]


== Ubuntu 20.04 LTS ==
== Ubuntu 20.04 LTS ==
Line 17: Line 18:
        
        


==Automatic install==
*https://ubuntu.com/server/docs/install/autoinstall




== Automatic install ==
*[https://ubuntu.com/server/docs/install/autoinstall https://ubuntu.com/server/docs/install/autoinstall]
*[https://tlhakhan.medium.com/ubuntu-server-20-04-autoinstall-2e5f772b655a Ubuntu Server 20.04 autoinstall]
*[https://louwrentius.com/understanding-the-ubuntu-2004-lts-server-autoinstaller.html Understanding the Ubuntu 20.04 LTS Server Autoinstaller]
*[https://discourse.ubuntu.com/t/please-test-autoinstalls-for-20-04/15250/166 Discourse - Please test autoinstalls for 20.04]
*[https://cloudinit.readthedocs.io/en/latest/topics/examples.html Cloudconfig examples]
 
=== Snags ===


= FAQ =
= FAQ =
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  cat /etc/lsb-release
  cat /etc/lsb-release
        
        
== disable ipv6 ==
sysctl:
net.ipv6.conf.default.disable_ipv6=1
net.ipv6.conf.all.disable_ipv6=1


== changing locale ==
== changing locale ==
Line 43: Line 59:
and lots more
and lots more


 
 


== mail: command not found ==
== mail: command not found ==
install heirloom-mailx
OR
install mailutils
install mailutils


REMEMBER: to fix sender domain


create /etc/mailutils.conf containing
address {
        email-domain yourdom.ain;
};
and check out
mail --config-help


== failed unmounting /var ==
== failed unmounting /var ==
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==The following signatures couldn't be verified because the public key is not available:==
gpg --keyserver keyserver.ubuntu.com --recv-keys  9D6D8F6BC857C906
==Upgrade to 22.04 (impish Release no longer has a Release file)==
That sucks, now what?
Check https://help.ubuntu.com/community/EOLUpgrades
When apt-get update fails, set your repositories to old-releases.ubuntu.com
==Upgrades to the development release are only available from the latest supported release==
More obscure mess. Check https://linuxconfig.org/how-to-upgrade-ubuntu-to-20-04-lts-focal-fossa

Revision as of 09:30, 30 August 2022


Links

Installation

Ubuntu 20.04 LTS

Storage configuration

First create a boot partition!

Remember to umount cdrom before rebooting



Automatic install

 

Snags

FAQ

Get ubuntu version

cat /etc/lsb-release
      

disable ipv6

sysctl:

net.ipv6.conf.default.disable_ipv6=1
net.ipv6.conf.all.disable_ipv6=1

changing locale

/etc/default/locale

locale-gen
dpkg-reconfigure keyboard-configuration

setupcon
loadkeys us

and lots more

 

 

mail: command not found

install heirloom-mailx

OR

install mailutils

REMEMBER: to fix sender domain

create /etc/mailutils.conf containing

address {
       email-domain yourdom.ain;
};

and check out

mail --config-help

failed unmounting /var

ignore it? it's a journald issue

multipathd[667]: sda: failed to get sgio uid: No such file or directory

Seems to be vmware setting: disk.EnableUUID = true

CHECK!

 

The following signatures couldn't be verified because the public key is not available:

gpg --keyserver keyserver.ubuntu.com --recv-keys  9D6D8F6BC857C906


Upgrade to 22.04 (impish Release no longer has a Release file)

That sucks, now what? Check https://help.ubuntu.com/community/EOLUpgrades

When apt-get update fails, set your repositories to old-releases.ubuntu.com


Upgrades to the development release are only available from the latest supported release

More obscure mess. Check https://linuxconfig.org/how-to-upgrade-ubuntu-to-20-04-lts-focal-fossa