how to install grub using lubuntu x86? (dual boot)

[spanishsteve]

Hello,
I installed Windows 7 and lubuntu 19.04 x86 in the same computer (dual boot), but it does not appear the grub screen to choose between Windows 7 and lubuntu. I may be wrong, but after installing lubuntu I think that on the screen says that I have to format my USB device to install the grub and I cannot do that because the lubuntu installer is in the device. What should I do?
Thanks.

[yapidumoac]

The Ultimate Windows 7 and Ubuntu Linux Dual Boot Guide

[Deep_Peasant]

Both OS on one drive?

First thing I would do is shutdown PC. Remove USB installer. Start PC.

What OS boots your PC to then?

[guiverc]

Lubuntu 19.04 (along with all 19.04 products) is EOL or end-of-life.

For validation, you can view

- https://lubuntu.me/lubuntu-19-04-end...port-statuses/ or
- https://fridge.ubuntu.com/2020/01/23...nuary-23-2020/

Unless you used an alpha 19.04 ISO image, or release-upgraded from 18.10 (on an i386 install), you will be using an amd64 or x86_64 system, which means you can use the current Lubuntu 20.04 LTS or Lubuntu 20.10 system.

If you are using x86 (32-bit i386) then returning to Lubuntu 18.04 LTS is the safest course of action, as 19.04 was the last release with full x86/i386 support, and it's been EOL for some time now.

If you just installed it, I would try and fix it, but instead re-install a supported release of Lubuntu.