I bought DELL laptop with Ubuntu 18.04. which is not out of support. I tried to install new version but did not success. Then I tried to upgrade via terminal but it said something that Promt set upgrade is not allowed. I did reinstall many times on different machines different Linux. But this time I do not know what to do. Is it possible just to delete OS and then boot from USB.
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Download the Ubuntu ISO: https://ubuntu.com/download/desktop/thank-you?version=24.04.1&architecture=amd64<s=true
Burn it on a USB with enough space.
Start your Dell laptop with the USB.
Load a live session of Ubuntu.
Once the boot is complete, open a terminal and execute:
sudo apt install gparted
sudo gparted
From gparted, select the hard drive.
Unmount the partitions from the last to the first, in that order.
Create a new GPT partition table.
In the free space, first create a 512 megabyte partition, Efi-System partition (Fat32).
Next, create an 80-gigabyte partition, ext4 filesystem.
Create another 16-gigabyte partition, swap system.
Create another partition with the remaining space in ext4 system.
Apply the changes.
Close Gparted.
Close the terminal.
Start the installation
Choose the manual partition.
The default Grub on the hard drive
Select the 80-gigabyte partition for /
The 16-gigabyte partition for swap
The remaining space for /home.
Continue with the installation.
If your Dell only has BIOS mode, the Efi-system partition would be Efi-Boot.
kyodake
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