Impossible to update packages in Ubuntu 24.04

[#&thj^%]

just to be sure you copied and pasted those commands i gave right?
I ask because of this:

E: Could not open lock file "/var/lib/dpkg/lock-frontend" - open (13: Permission denied)
E: Failed to obtain dpkg interface lock (/var/lib/dpkg/lock-frontend). Are you a superuser?

So was "sudo" used in those commands?

[apgp]

I have used sudo with those commands and this is the response.

[#&thj^%]

Please try this:

sudo mv /var/lib/dpkg/lock-frontend /var/lib/dpkg/lock-frontend.bk

Now run this:

sudo apt update

Show me only the bottom command "sudo apt update"

[apgp]

Obj:1 http://es.archive.ubuntu.com/ubuntu noble InRelease
Obj:2 http://es.archive.ubuntu.com/ubuntu noble-updates InRelease
Obj:3 http://es.archive.ubuntu.com/ubuntu noble-backports InRelease
Obj:4 http://security.ubuntu.com/ubuntu noble-security InRelease
Obj:5 https://ppa.launchpadcontent.net/yan...-repair/ubuntu noble InRelease
Leyendo lista de paquetes... Hecho
Creando árbol de dependencias... Hecho
Leyendo la información de estado... Hecho
Se pueden actualizar 3 paquetes. Ejecute «apt list --upgradable» para verlos.
W: https://ppa.launchpadcontent.net/yan...ble/InRelease: Signature by key 3C48D16124B50277AF10D27F32B18A1260D8DA0B uses weak algorithm (rsa1024)

[#&thj^%]

Ok now upgrade:

sudo apt upgrade

Post any errors back here please

[apgp]

/etc/grub.d/bin/grubcfg_proxy: error while loading shared libraries: libcrypto.s
o.1.1: cannot open shared object file: No such file or directory
run-parts: /etc/kernel/postrm.d/zz-update-grub exited with return code 127
dpkg: error al procesar el paquete linux-image-5.15.0-117-generic (--remove):
el subproceso instalado paquete linux-image-5.15.0-117-generic script post-remo
val devolvió el código de salida de error 127
dpkg: demasiados errores, parando
Se encontraron errores al procesar:
linux-image-5.15.0-117-generic
Proceso detenido por haber demasiados errores.
E: Sub-process /usr/bin/dpkg returned an error code (1)

[#&thj^%]

I thought so, **Grub Customizer**, That tool has caused so many problems for users.

Here is just one of the many posts here: https://ubuntuforums.org/showthread.php?t=2198824

Or another on AU :https://askubuntu.com/questions/1403...pt-dpkg-broken

[apgp]

Already solved. The problem was in Grub Costumizer. Thank you so much.

[#&thj^%]

Nice, and happy to help.

EDIT there is one thing we need to do is remove this "/var/lib/dpkg/lock-frontend.bk"

sudo rm -r /var/lib/dpkg/lock-frontend.bk