System not booting after interrupted system upgrade from 40 to 41

Hello,

hoping someone can assist me, using the steps below I was performing an upgrade from Fedora 40 to 41:

run: dnf upgrade --refresh
run: dnf install dnf-plugin-system-upgrade
run: dnf system-upgrade download --releasever=41

this all worked and issueed the command: dnf system-upgrade reboot

The system rebooted and during the upgrade process I suffered a power outage, now that the power is back on, I have tried to start the system but get as far as the initial screen of it asking what bootloader it is going to use, and then the screen goes blank, I have left system running now for about 3 hours with no progression.

I am not getting a prompt to log in, i cannot ping the server or ssh to it…

Any help on recovering the system would be much appricated, as a last resort I can do a fresh installation but would like to avoid that if possible.

Welcome to Fedora @sunnyg

Is there a rescue boot option available? Normally this should be able to boot into an older kernel which was installed while setting up Fedora the first time.

If you can enter there you could see what you could do from there.

Hi,

I have tried the rescue option however this terminates with a Kernal Panic error

I think, whatever you are doing now, I would first backup your data you still will need.

The easiest way would be to create a boot medium to run on the server to see what still is there.

Is it a complex server setting you have or more a single task server which backing up the data would make it easy and start over?

Helping over Internet is always tricky because of understanding what is going on and how the setup looks like. Having this in mind might help you to know what information we would need to help you out of your recuperation for your server setting.

Ok, so using a live usb, it looks like my fstab file got wipped and does not have any entries for mounting any drives

Using the live usb run the command lsblk -f and sudo fdisk -l then post the results of both.
We may be able to assist better with that information.

Hi,

I endeded up reinstalling Fedora and went to 41, now i am running into another issue of mounting network shares from another Fedora system (still on 40). I’ll spend a few days working on that, if still no luck the I’ll open up another post, but thank you for the assist.

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