System no longer boots, gave up waiting for root file system device. Alert /dev/sda2 does not exist/ dropping to a shell

Luk En

9/1/24, 1:17 PM

On the computer:

Dell Inspiron n7110
8 GB RAM
i7-2670QM
with Windows7

I want to install Ubuntu 22.04.3 LTS (Ubuntu only, on a new drive). I bought a brand new 512 GB SSD.

I swapped with the previous one on which Windows 7 was running.

I tried to make using the Etcher app, a flash drive with Ubuntu installation. Unfortunately, it did not work and only with the help of the Rufus application I was able to fire up the Ubuntu installer. After a successful installation (message from the installer), after restarting I received a message:

operating system not found

Using the same flash drive, each time I ran the Try it versions of Ubuntu (I assume that since it succeeded, everything is OK with the flash drive) and verified how the installer formats the drive and sets partitions. It comes out differently each time. I chose to format the entire drive by default (no additional advanced options )

I have updated the BIOS twice. The first time, from a07 to a13 - nothing was frowned upon. Only after installing the modded version, I can access to UEFI and Legacy related settings. A BIOS update, led to the point where I am currently stuck:

System no longer boots, gave up waiting for root file system device.   
Alert /dev/sda2 does not exist/ dropping to a shell".

0 + 2

boot

22.04

oldfred

9/1/24, 1:53 PM

Please copy & paste the pastebin link to the BootInfo summary report ( do not post report), do not run the auto fix till reviewed. Use often updated ppa version over somewhat older ISO with your USB installer or any working install. https://help.ubuntu.com/community/Boot-Repair & https://sourceforge.net/p/boot-repair/home/Home/ You say you installed multiple times. Did you always install in UEFI boot mode? You show ESP & /, but if you installed in old BIOS boot mode, you have BIOS version of grub in MBR and if UEFI set to boot in BIOS mode, that old grub would try to boot erased install.

Paul Benson

9/1/24, 8:22 PM

When starting up the Dell computer,keep tapping F12 button to bring up UEFI/BIOS boot menu. Does the menu show the options for 'Windows' or 'Ubuntu'?

Elon Musk

I sit in a Tesla and translated this thread with Ai:

EN: System no longer boots, gave up waiting for root file system device. Alert /dev/sda2 does not exist/ dropping to a shell

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