Debian Dual Boot

Every section has a source link given, which describes how to execute a certain step in detail. If you are completely familiar with the process of installation and have trouble in particular steps, you should directly visit the sources mentioned for clarification. However, if you are installing Debian for the first time and you have no idea how to do it, I suggest you read an entire section/subsection first before proceeding to follow the steps or read the sources listed in it. If you don't understand a certain term, feel free to search it online (use startpage instead of google!) and learn about it so you'll feel less clueless about what's going on!

• An empty USB (If you have a live USB, you can skip the Make a bootable USB section)
• Stable internet connection for installing updates and downloading ISO
• Little amount of patience to read instructions both in this document and listed sources, and following steps accordingly 😄

Source: https://markontech.com/linux/create-a-debian-bootable-usb-in-windows-10/

You can download the Debian ISO from this site: https://www.debian.org/distrib/

It is recommended to download A larger complete installation image as installing Debian from it doesn't require an internet connection during the installation process. Make sure to install DVD-1 (as opposed to DVD-2 or DVD-3). Use the following link to download, if your device supports x86-64 architecture: https://cdimage.debian.org/debian-cd/current/amd64/bt-dvd/

Source: https://markontech.com/linux/create-a-debian-bootable-usb-in-windows-10/

You can skip this step if you are already have a bootable USB
If you are on Windows, Rufus is a nice utility to create bootable USBs. Download Rufus from this site: https://rufus.ie/

Source: https://www.linuxtechi.com/dual-boot-windows-10-debian-10/

1. Open the Disk Management window by searching for Create disk partition in the start menu or running diskmgmt.msc in the Run dialogue.
2. Make sure you have the necessary amount of unallocated space. I recommend to allocate a minimum of 30GB for Debian (If you want to allocate more, then go straight ahead!). If you don't have unallocated space, follow the steps in the source above to create some.
   

Some points to be noted:

• C drive cannot be resized however you wish; Windows puts some restrictions on that. However, it should be safe as long as you allocate free space in Windows itself (as opposed to allocating it in Debian during installation, which we'll be talking about in later steps)
• In disks that follow the MBR partition table, there can only be up to 4 primary partitions. If you aren't able to create a partition and you already have 4 primary partitions, that's probably the reason. Some things you can do are:
  • If you have a storage partition that's empty or occupies less space, you can copy its contents to another partition and delete it. Then, create an extended partition that let's you create any number of logical partitions. Don't be scared by the terms, they are simply partitions and you can use them as you use a primary partition.
  • Consider installing Debian in another internal or external hard disk. However, installing on external hard disk might cause performance to reduce, and it simply might not be convenient to carry it around all the time (You can still do it though!).

The following source is used for this entire section
Source: https://www.linuxtechi.com/dual-boot-windows-10-debian-10/

Some common post-installation issues are given below. If you have any of those issues, refer to the respective links.

Solutions for common issues can be found here

• Swecha Discussion Forum: https://discuss.swecha.org/c/support