{"id":43356,"date":"2022-11-22T02:58:03","date_gmt":"2022-11-22T02:58:03","guid":{"rendered":"https:\/\/ubuntuhandbook.org\/?p=43356"},"modified":"2024-05-06T13:33:30","modified_gmt":"2024-05-06T13:33:30","slug":"reboot-into-another-os-ubuntu","status":"publish","type":"post","link":"https:\/\/ubuntuhandbook.org\/index.php\/2022\/11\/reboot-into-another-os-ubuntu\/","title":{"rendered":"How to Reboot directly into another OS from Ubuntu 24.04 | 22.04"},"content":{"rendered":"

\"\"<\/a><\/p>\n

This simple tutorial shows how to reboot your machine into another OS or grub boot menu entry directly from Ubuntu.<\/p>\n

Say you have Ubuntu dual- or multi-boot with other operating systems, and want to reboot directly into a specific OS when working done in current Ubuntu. Or you want to reboot with another Kernel or maybe recovery mode without any keyboard press while booting. This tutorial may help.<\/p>\n

Method 1: Single command to reboot into another OS<\/h3>\n

Grub, the default boot-loader for many Linux, has a command line tool grub-reboot<\/code>, which allows to set the default boot-entry for ONLY next boot.<\/p>\n

Along with reboot<\/code> command, it allows to reboot directly into another entry. For example, reboot into the third<\/b> menu try with command:<\/p>\n

sudo grub-reboot 2 && reboot<\/pre>\n
NOTE: Grub menu entry counts from 0. Number 2 means the 3rd entry.<\/b><\/p>\n
Preview Boot Menu without Reboot<\/h4>\n
You don’t have to reboot and count in the boot-menu for your desired number. There are 2<\/b> ways to preview the menu from in Ubuntu.<\/p>\n
Option 1. Preview Grub Menu via Grub-Emu<\/b><\/p>\n
Press Ctrl+Alt+T<\/b> on keyboard to open terminal, and run command to install grub-emu:<\/p>\n
sudo apt install grub-emu<\/pre>\n
Then, run grub-emu<\/code> command in terminal will open up a window for previewing your boot-loader. And, close the terminal will also close the preview window.<\/p>\n
The tool works good in Ubuntu 22.04, but NOT for Ubuntu 24.04 in my case somehow.<\/p>\n
\"\"<\/a><\/p>\n
Option 2. Use Grub-Customizer<\/b><\/p>\n
Grub-Customizer is a good alternative, as the preview tool does not work good in my case. To install it, open terminal (Ctrl+Alt+T) and run 3 commands below one by one.<\/p>\n
The commands will add the software developer’s PPA<\/a> repository, update cache and finally install it into your system.<\/p>\n
sudo add-apt-repository ppa:danielrichter2007\/grub-customizer<\/pre>\n
sudo apt update<\/pre>\n
sudo apt install grub-customizer<\/pre>\n
After that, search for and open it from either system start menu or ‘Activities’ overview depends on your DE.<\/p>\n
\"\"<\/a><\/p>\n
As the screenshot shows you, number 2<\/b> is for Windows in my case. 1>1<\/b> means recovery mode, and 1>2<\/b> means the previous kernel entry.<\/p>\n
So, run the command below will reboot directly into Windows<\/b> in my case:<\/p>\n
sudo grub-reboot 2 && reboot<\/pre>\n
To reboot into recovery mode in sub-menu entry (quotation marks required)<\/b>, use:<\/p>\n
sudo grub-reboot \"1>1\" && reboot<\/pre>\n
And, if you want to use the command in script or bind with a keyboard shortcut, use command:<\/p>\n
pkexec grub-reboot 2 && reboot<\/pre>\n
So, it will pop-up an authentication dialog asks you to type user password, before performing the action.<\/p>\n
Method 2: Add Reboot option in top-right system menu<\/h3>\n
\"\"<\/a><\/p>\n
For GNOME 43\/44<\/b>, meaning users of Ubuntu 22.10, 23.04, Fedora 37\/38, Arch and Manjaro Linux<\/b>, there’s an extension to do the job by adding menu entries into system status menu.<\/p>\n
By clicking on an entry in the menu, will pop-up password authentication dialog, and then shows you the reboot dialog. When typing correct password and click restart in pop-up dialog, it reboot directly with that entry you just clicked!<\/p>\n
How to Install the Extension<\/h4>\n
For Ubuntu 22.10<\/b>, first search for and install “Extension Manager” from Ubuntu Software.<\/p>\n
\"\"<\/a>
Install Extension Manager in Ubuntu 22.04+<\/p><\/div>\n
Then press Super<\/i> (the Windows Logo) key to activate overview, search for and open “Extension Manager”. Finally, use the tool to install the “Custom Reboot” extension:<\/p>\n
\"\"<\/a><\/p>\n
For Fedora 37\/38<\/b> and other Linux with GNOME 43\/44, you may go directly to the extension website<\/a> and use ON\/OFF switch to install it.<\/p>","protected":false},"excerpt":{"rendered":"
This simple tutorial shows how to reboot your machine into another OS or grub boot menu entry directly from Ubuntu. Say you have Ubuntu dual- or multi-boot with other operating systems, and want to reboot directly into a specific OS when working done in current Ubuntu. Or you want to reboot with another Kernel or […]<\/p>\n","protected":false},"author":1,"featured_media":38622,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[9],"tags":[2034],"class_list":["post-43356","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-howtos","tag-grub"],"amp_enabled":true,"_links":{"self":[{"href":"https:\/\/ubuntuhandbook.org\/index.php\/wp-json\/wp\/v2\/posts\/43356","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ubuntuhandbook.org\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ubuntuhandbook.org\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ubuntuhandbook.org\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/ubuntuhandbook.org\/index.php\/wp-json\/wp\/v2\/comments?post=43356"}],"version-history":[{"count":0,"href":"https:\/\/ubuntuhandbook.org\/index.php\/wp-json\/wp\/v2\/posts\/43356\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/ubuntuhandbook.org\/index.php\/wp-json\/wp\/v2\/media\/38622"}],"wp:attachment":[{"href":"https:\/\/ubuntuhandbook.org\/index.php\/wp-json\/wp\/v2\/media?parent=43356"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ubuntuhandbook.org\/index.php\/wp-json\/wp\/v2\/categories?post=43356"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ubuntuhandbook.org\/index.php\/wp-json\/wp\/v2\/tags?post=43356"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}