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K26 Live USB does not start (Screen off)

My korora-live-gnome-26-x86_64 iso does not start the live session after boot, just go to blank scrren with cursor and then screen off ...

At the begining I got this message: dracut-pre-udev[395]: rpc.idmapd: conf_reinit: open ("(null)", 0_RDONLY) failed dracut-pre-udev[395]: rpc.idmapd: conf_reinit: open ("(null)", 0_RDONLY) failed

Is this a bug with the iso or something else?

I have a Dell Inspiron n5110 with i7-2630QM CPU (64 bit) and Intel HD Graphics 3000 VGA (2x4GB RAM)

  • Installed OS: Manjaro in dual boot with Windows 10.

How did you create the live usb?

Also there is a test option, I think it is on the trouble shooting menu at boot, can you try that and see if reports anything.

I created the iso with rufus under windows (same effect in iso and DD mode...). I also tried the troubleshooting option, it works very slowly on low graphics settings. I installed K26 in this session, and then updated the whole system. Now it works on low graphics and also slowly yet...

Rufus isn't exactly the way to go and not recommended, i experienced issues with it in the past. You could have downloaded the Fedora Media Writer tool for Windows to create a live USB.

https://getfedora.org/fmw/FedoraMediaWriter-win32-4.1.0.exe

I tried the Fedora Media Writer tool but the problem still persists...

Did you test the download? Did you check the checksum of the download?

Also you could try another usb stick or a different usb port on the computer.

I checked everything and the downloads are OK. The iso is also passed the built in checker. I tried Fedora 26 and it works perfectly, so its a Korora specific problem.

Well, it's a weird issue for sure. I have two different laptops here,both with different Intel Graphics cards in them and Gnome booted fine the last time i tried. Both live session and a real install were OK. Probably you don't encounter any issues with the live image from fedora since that one uses a older kernel, K26 ships with a newer one. However, it's possible if you install Fedora and update it, you might run into the same issue. Unless it's fixed of course with the new kernel that came out today for Fedora but it's hard to tell if it solves the issue. You're the first reporting this kind of issue here.

Maybe there are similar or same issues at Fedora's end now so you might want to check bugzilla for reports.

I just found that:

https://bugzilla.redhat.com/show_bug.cgi?id=1436096

Hi I have the same issue here, whether I boot a live usb or try to run K26 in a virtual machine (so i suppose the pb is not in creating the bootable usb). I also checked the iso (md5 sha1 sha256...) it looks good. I have a Dell Precision 5510 with dual intel/nvidia graphics. The initial message is : dracut-pre-udev[380]: rpc.idmapd: conf_reinit: open ("(null)", 0_RDONLY) failed Then the splash screen starts but hangs forever. It boots with the troubleshooting option though (but hidpi is not very well handled and it is very slow as the original poster said).

gilasanchez wrote:
I just found that:

https://bugzilla.redhat.com/show_bug.cgi?id=1436096

I edited your post to make the link work. Click on the question mark above the reply box to see the formatting options.

axelmeunier wrote:
Hi I have the same issue here, whether I boot a live usb or try to run K26 in a virtual machine (so i suppose the pb is not in creating the bootable usb). I also checked the iso (md5 sha1 sha256...) it looks good.
I have a Dell Precision 5510 with dual intel/nvidia graphics.
The initial message is :
dracut-pre-udev[380]: rpc.idmapd: conf_reinit: open ("(null)", 0_RDONLY) failed
Then the splash screen starts but hangs forever.
It boots with the troubleshooting option though (but hidpi is not very well handled and it is very slow as the original poster said).

This was covered in the release announcement, https://kororaproject.org/about/news/korora-26-is-here. You need to change the video to anything other than QXL.

New info: With Cinnamon it starts perfectly without problem. It should be something with Gnome.

gilasanchez wrote:
New info: With Cinnamon it starts perfectly without problem. It should be something with Gnome.

The main difference would be Wayland which Gnome has on by default but Cinnamon doesn't use.

ozjd wrote:
This was covered in the release announcement, https://kororaproject.org/about/news/korora-26-is-here. You need to change the video to anything other than QXL.

OK that explains the VM problem, thanks for pointing out ! Concerning the live usb pb, i tried again and it worked, after actually a pretty lengthy booting process... So it's all good for me. K26 looks awesome, and i can update my K25 or reinstall my whole system idk yet. thx

axelmeunier wrote:

ozjd wrote:
This was covered in the release announcement, https://kororaproject.org/about/news/korora-26-is-here. You need to change the video to anything other than QXL.

OK that explains the VM problem, thanks for pointing out !
Concerning the live usb pb, i tried again and it worked, after actually a pretty lengthy booting process...
So it's all good for me. K26 looks awesome, and i can update my K25 or reinstall my whole system idk yet.
thx

Upgrading works for most people, see https://kororaproject.org/support/documentation/upgrading-korora. If you have made a lot of changes to the system it is a quickest way. But if your system is standard or very close to it, then a clean installation is the fastest. Either way don't forget tbackup any important data first.

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