Latest revision as of 15:23, 3 November 2024

Links

Installation

Ubuntu Netboot/PXE installation

Ubuntu 20.04 LTS

Storage configuration

First create a boot partition!

Remember to umount cdrom before rebooting

Automatic install

Snags

Documentation

Network configuration

HOWTO

Change nameservers

If using systemd-resolved

Show nameservers

resolvectl status

Edit /etc/netplan/00-installer-config.yaml

netplan apply

Using Ubuntu live CD for resque

[https://help.ubuntu.com/community/LiveCdRecovery LiveCdRecovery

Download source code of package

Add to /etc/apt/sources.list.d/ubuntu.sources

Types: deb-src
URIs: http://us.archive.ubuntu.com/ubuntu/
Suites: noble noble-updates noble-backports noble-proposed
Components: main restricted universe multiverse
Signed-By: /usr/share/keyrings/ubuntu-archive-keyring.gpg

then update

apt-get update

and to get the sources

apt-get source somepackage

FAQ

Installing Ubuntu

https://ubuntu.com/server/docs/install/storage

Select a boot disk

Set timezone

dpkg-reconfigure tzdata

Get ubuntu version

cat /etc/lsb-release

The repository 'http://packages.ros.org/ros/ubuntu cosmic Release' does not have a Release file.

Switch path to repositories to old-releases.ubuntu.com

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

==Not all translations for this language are installed.== Use the Install Missing Packages button to download and install all missing packages

Instead of trying to find that mysterious button, try

check-language-support

which will list missing packages

Release file not valid yet

Mirror not up to date?

The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 23E7166788B63E1E

apt-key adv --keyserver keyserver.ubuntu.com  --recv-keys 23E7166788B63E1E

Get into grub menu during boot

Hold shift key

Error messages

The repository 'http://archive.ubuntu.com/ubuntu jammy InRelease' is no longer signed.

Try again later?

Could not connect to archive.ubuntu.com:443

Doesn't support https, pick another mirror

@@ Line 5: / Line 5: @@
 *[http://ubuntu.com http://ubuntu.com]
 *https://linuxize.com/post/how-to-add-apt-repository-in-ubuntu/
+*[https://launchpad.net/ubuntu/+ppas Ubuntu PPA]
 = Installation =
+*[https://ubuntu.com/server/docs/install/netboot-amd64 Ubuntu Netboot/PXE installation]
 == Ubuntu 20.04 LTS ==
@@ Line 17: / Line 19: @@
-==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]
+&nbsp;
+=== Snags ===
+=Documentation=
+==Network configuration==
+*[https://ubuntu.com/server/docs/configuring-networks Configuring networks]
+*[[Netplan]]
+= HOWTO =
+== Change nameservers ==
+===If using systemd-resolved===
+Show nameservers
+ resolvectl status
+Edit /etc/netplan/00-installer-config.yaml
+ netplan apply
+==Using Ubuntu live CD for resque==
+*[https://help.ubuntu.com/community/LiveCdRecovery LiveCdRecovery
+==Download source code of package==
+Add to /etc/apt/sources.list.d/ubuntu.sources
+ Types: deb-src
+ URIs: http://us.archive.ubuntu.com/ubuntu/
+ Suites: noble noble-updates noble-backports noble-proposed
+ Components: main restricted universe multiverse
+ Signed-By: /usr/share/keyrings/ubuntu-archive-keyring.gpg
+then update
+ apt-get update
+and to get the sources
+ apt-get source somepackage
 = FAQ =
+==Installing Ubuntu==
+https://ubuntu.com/server/docs/install/storage
+===Select a boot disk===
+==Set timezone==
+ dpkg-reconfigure tzdata
 == Get ubuntu version ==
@@ Line 28: / Line 75: @@
   cat /etc/lsb-release
+==The repository 'http://packages.ros.org/ros/ubuntu cosmic Release' does not have a Release file.==
+Switch path to repositories to old-releases.ubuntu.com
+== disable ipv6 ==
+sysctl:
+ net.ipv6.conf.default.disable_ipv6=1
+ net.ipv6.conf.all.disable_ipv6=1
 == changing locale ==
@@ Line 43: / Line 98: @@
 and lots more
+&nbsp;
+&nbsp;
 == 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;
+         email-domain yourdom.ain;
   };
 and check out
   mail --config-help
@@ Line 69: / Line 133: @@
 &nbsp;
+==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
+==Not all translations for this language are installed.== Use the Install
+Missing Packages button to download and install all missing packages
+Instead of trying to find that mysterious button, try
+ check-language-support
+which will list missing packages
+==Release file not valid yet==
+Mirror not up to date?
+==The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 23E7166788B63E1E==
+ apt-key adv --keyserver keyserver.ubuntu.com  --recv-keys 23E7166788B63E1E
+==Get into grub menu during boot==
+Hold shift key
+==Error messages==
+===The repository 'http://archive.ubuntu.com/ubuntu jammy InRelease' is no longer signed.===
+Try again later?
+===Could not connect to archive.ubuntu.com:443===
+Doesn't support https, pick another mirror

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