I would like to install Ubuntu Desktop, however, I only have a 1GB Usb Stick which is not large enough. Is it possible to install Ubuntu Desktop for example from the server image while downloading the additional packages from the internet?
2 Answers
You can use Ubuntu Minimal: https://help.ubuntu.com/community/Installation/MinimalCD
The minimal iso image will download packages from online archives at installation time instead of providing them on the install media itself. Downloading packages at install time reduces the size of the iso image to approximately ~40MB depending on architecture
But it won't work in UEFI mode, if you need that you can use the server image:
While the minimal iso image is handy, it isn't useful for installing on UEFI-based systems that you want to run in UEFI mode. The mini iso lacks the proper files for booting the computer in UEFI mode. Thus, the computer will boot in BIOS compatibility mode, and the installation will be in BIOS mode.
You can use an Ubuntu Server amd64 iso file (64-bit) for 'mini installations' in UEFI mode.
See this link: Installation/UEFI-and-BIOS/stable-alternative.
Yes you can, install the server distribution and then you download the GUI. This might be helpful: How do you run Ubuntu Server with a GUI?

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graphical
and still no result – Angel Apr 14 '20 at 13:23s probably activated automatically if you are seeing the purple background but try
systemctl set-default graphical.target ` and reboot – Angel Apr 14 '20 at 14:00sudo systemctl set-default graphical.target
creates symlink /etc/systemd/system/default.target -> /lib/systemd/system/graphical.target But just installing gnome-panel did not fully add all the gui bits. Normally I install full Ubuntu & add gnome-panel, but laptop only has 1.5GB of RAM, so full desktop will not install. Full desktopsudo tasksel install desktop gnome-desktop
I am installing the extra bits I need to get it working without full desktop. – oldfred Apr 15 '20 at 14:48