It's going to be impossible to get any kind of help with such a message. Looking into your previous posts, it looks like you do no research at all on your struggles and expect us to do the research for you in order to help you out.

I believe you will receive far more beneficial support from the community if you post meaningful messages, with a clear description of the issue, what have you tried to do about it and share any error message.

I am not trying to be mean to you, just "educate" you (since you have fairly low posts on this forum) on how to get better and faster support from the community.

1 members found this post helpful.

Thank you for this advice and I will do my best to be efficient in my posts.

et concernant la connection de qemu/kvm dans virt-manager, j'ai réussi a établir la connection.

and regarding the connection of qemu / kvm in virt-manager, I managed to establish the connection.

Hello
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root@ubuntu:/# ls
bin dev lib libx32 mnt root snap sys var
boot etc lib32 lost+found opt run srv tmp
cdrom home lib64 media proc sbin swapfile usr
root@ubuntu:/# rm -rf boot
rm: cannot remove 'boot/efi': Device or resource busy
root@ubuntu:/#
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I can't delete this file (boot) see below

thanks

Why on earth would you like to delete the boot partition?

Good question