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I successfully installed Ubuntu 22.04.5 LTS and it is not a dual boot, Ubuntu is my only OS, but when I try to open the system I am getting an error as error: unknown file system Entering rescue mode...

I followed the below method but no use, when I enter insmod normal,it is again giving an error. enter image description here From F12 I selected the bootable device, For 1 second see I saw a message which disappeared immediately enter image description here

I entered with try Ubuntu mode and opened the gparted, this is how it looks like enter image description here enter image description here

I know this is a duplicate question but nothing helped me for fixing this even after following solutions for the similar questions. I am not able to figure out the solution for this, I hope someone guide me on this for the fix.

NAIDU
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1 Answers1

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Try reinstalling Ubuntu, following this guide

Previously back up the files on your /dev/sda1 partition

The Efi System partition must be at the beginning of the disk, /dev/sda1

Disable secure boot and fast boot in setup.

Start a live session of Ubuntu.

Once the boot is complete, open a terminal and run:

sudo apt update
sudo apt install gparted
sudo gparted

From gparted, select the HDD drive.

Unmount it if it is mounted.

Create a new gpt partition table. WARNING: this will delete the existing data on the device.

In the free space, create a 1 giga partition, Efi-System (Fat32).

Next, create a 80-gigabyte partition, ext4 system.

Create another 8-gigabyte partition, swap system.

Create another remaining partition that you plan to use for Linux, ext4 system.

Apply the changes.

Close gparted.

Close the terminal.

Start the installation.

Choose manual partitioning

Grub, by default, on the SDD drive, Efi System Fat 32.

And select

The 80-gigabyte partition for /.

The 8-gigabyte partition for swap.

The remaining one for /home.

Continue with the installation.

The sizes and number of partitions are suggested based on my experience and preference for having a separate swap and /home partition to preserve personal files during future updates.

In particular, I remove the Firefox, Thunderbird, and Libreoffice applications installed as snaps after the installation is complete and install them from their PPAs or directly from the original packages from their developers.

kyodake
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