> ## Knowledge Base Index > Fetch the complete knowledge base index at: https://helpdesk.ggcircuit.com/sitemap.xml > Use this file to discover available pages before exploring further. > Pure-Markdown content can be obtained by appending a '.md' suffix to the content URLs listed in the sitemap (without the trailing slash). # Install Debian OS (Deprecated) ## This article helps guide the user through the first step of the installation - Debian (Linux) OS. ### **Phase 1. Download and prepare flash drive** Download Debian 10 x86-64 .ISO image from [https://www.debian.org/](https://www.debian.org/) Direct link to the latest version: [**Download Debian OS ISO**](https://cdimage.debian.org/cdimage/archive/11.9.0/amd64/iso-cd/debian-11.9.0-amd64-netinst.iso) ![](https://ggcircuit.atlassian.net/wiki/download/attachments/15863083/image-20250516-134211.png?version=1&modificationDate=1747402933723&cacheVersion=1&api=v2) Write the image to the USB flash and boot server from it. You can use Rufus ([**[https://rufus.ie**](https://rufus.ie/+))](https://rufus.ie**](https://rufus.ie/+))) utility to create a USB boot device. Direct link to the latest version: [**Download Rufus Tool**](https://ggrock.com/rufus) ### **Phase 2. Install (26 steps)** The installation procedure of Debian 10 (Linux) is accompanied by a graphical interface. You will need to answer a few questions regarding language, clock, network, boot device, etc. In most cases you should use default options. If you are setting up ggRock with an **OS RAID array** - make sure to follow the external link during Step 11. ### If you are going to [**Install Debian to a RAID array**](https://help.ggcircuit.com/knowledge/appendix-ii-debian-os-installation-to-a-software-raid-array) - make sure that your motherboard BIOS is set to Legacy boot ### Step 1. Installation options selection Select Graphical Install ![](https://ggcircuit.atlassian.net/wiki/download/attachments/15863083/image-20250516-134327.png?version=1&modificationDate=1747403010031&cacheVersion=1&api=v2) ### Step 2. Language selection Select your language (English in this case) ![](https://ggcircuit.atlassian.net/wiki/download/attachments/15863083/image-20250516-134401.png?version=1&modificationDate=1747403044673&cacheVersion=1&api=v2) ### Step 3. Country selection Select your country (United States in this case) ![](https://ggcircuit.atlassian.net/wiki/download/attachments/15863083/image-20250516-134429.png?version=1&modificationDate=1747403072007&cacheVersion=1&api=v2) ### Step 4. Keyboard layout Select your keyboard layout (American English in this case) It will take Debian a couple of minutes to discover your hardware and network ![](https://ggcircuit.atlassian.net/wiki/download/attachments/15863083/image-20250516-134559.png?version=1&modificationDate=1747403162263&cacheVersion=1&api=v2) ### Step 5. Provide a hostname Feel free to use any value, i.e. **ggrock**. If you see a different prompt go to [**Special case Step 5 - Configure network**](https://8226353.hs-sites.com/knowledge/debian-os-installation-special-case-step-5-configure-network-deprecated?__hstc=177048186.d3d38f5e724cb861c39039a19971738f.1735844693470.1746624561051.1747402724973.60&__hssc=177048186.2.1747402724973&__hsfp=1190003462) ![](https://ggcircuit.atlassian.net/wiki/download/attachments/15863083/image-20250516-134658.png?version=1&modificationDate=1747403220905&cacheVersion=1&api=v2) ### Step 6. Domain name Setting the domain name. Leave this field blank and proceed ![](https://ggcircuit.atlassian.net/wiki/download/attachments/15863083/image-20250516-135253.png?version=1&modificationDate=1747403576672&cacheVersion=1&api=v2) ### Step 7. Root password Set your root password. Please store it in a safe place and **keep track of it** so it's not lost. **We can not restore this password for you later** ![](https://ggcircuit.atlassian.net/wiki/download/attachments/15863083/image-20250516-135322.png?version=1&modificationDate=1747403605153&cacheVersion=1&api=v2) ### Step 8. Regular user name Set your regular user profile name. Once you press Continue it will go to the next substep selecting your new username. Press Continue again ![](https://ggcircuit.atlassian.net/wiki/download/attachments/15863083/image-20250516-135612.png?version=1&modificationDate=1747403775317&cacheVersion=1&api=v2) ### Step 9. User password Set your regular user profile password. Please store it in a safe place and **keep track of it** so it's not lost. **You can reset this password later with root credentials.** ![](https://ggcircuit.atlassian.net/wiki/download/attachments/15863083/image-20250516-140908.png?version=1&modificationDate=1747404551336&cacheVersion=1&api=v2) ### Step 10. Clock configuration Configure the clock to use your time zone (Eastern in this case) ![](https://ggcircuit.atlassian.net/wiki/download/attachments/15863083/image-20250516-134327.png?version=1&modificationDate=1747403010031&cacheVersion=1&api=v2) ### Step 11. Partition setup **NOTE:** *If there are existing legacy-mode partitions on the disk and you are installing in UEFI mode, you may receive a prompt to force UEFI installation.* *Choose the "Yes" radio button and click the "Continue" button.* ![](https://ggcircuit.atlassian.net/wiki/download/attachments/15863083/image-20250516-134327.png?version=1&modificationDate=1747403010031&cacheVersion=1&api=v2) Set the partition of the disks to "Guided - use entire disk" **If you want to install Debian on the RAID array -** go to [**Special case Step 11 - Install Debian to a RAID array**](https://help.ggcircuit.com/knowledge/debian-os-installation-special-case-step-11-install-debian-to-a-raid-array-deprecated) ![](https://ggcircuit.atlassian.net/wiki/download/attachments/15863083/image-20250516-134327.png?version=1&modificationDate=1747403010031&cacheVersion=1&api=v2) ### Step 12. Select OS Drive Select your OS drive as the drive to install Debian to. Usually it would be a 256Gb SSD, either 2.5" or M.2. In this case it's a "250.1 GB ATA Samsung SSD 860". All other drives will be required during ggRock Disks configuration. This drive will be a boot drive during [**Step 23. Select boot drive**](https://help.ggcircuit.com/knowledge/install-debian-os-deprecated#step-23-select-boot-drive) ![](https://ggcircuit.atlassian.net/wiki/download/attachments/15863083/image-20250516-134327.png?version=1&modificationDate=1747403010031&cacheVersion=1&api=v2) ### Step 13. Partition disks Set your disk partitioning as "All files in one partition" ![](https://ggcircuit.atlassian.net/wiki/download/attachments/15863083/image-20250516-134327.png?version=1&modificationDate=1747403010031&cacheVersion=1&api=v2) ### Step 14. Apply partition Select "Finish partitioning and write changes to disk" ![](https://ggcircuit.atlassian.net/wiki/download/attachments/15863083/image-20250516-134327.png?version=1&modificationDate=1747403010031&cacheVersion=1&api=v2) ### Step 15. Confirm partition Confirm the partitioning layout. It will take Debian a couple of minutes to install the base system after this step ![](https://ggcircuit.atlassian.net/wiki/download/attachments/15863083/image-20250516-134327.png?version=1&modificationDate=1747403010031&cacheVersion=1&api=v2) ### Optional Step 16. Discard scanning for CDs or DVDs. **This prompt might not appear at all**, depending on your server hardware ![](https://ggcircuit.atlassian.net/wiki/download/attachments/15863083/image-20250516-134327.png?version=1&modificationDate=1747403010031&cacheVersion=1&api=v2) ### Step 17. Configure package manager Configure the package manager to use your country (United States in this case) **If you were installing Debian to a RAID array this is the step you should pick up from after finishing installation steps** ![](https://ggcircuit.atlassian.net/wiki/download/attachments/15863083/image-20250516-134327.png?version=1&modificationDate=1747403010031&cacheVersion=1&api=v2) ### Step 18. Select package manager mirror Select "[deb.debian.org](http://deb.debian.org/)" as your package manager mirror ![](https://ggcircuit.atlassian.net/wiki/download/attachments/15863083/image-20250516-134327.png?version=1&modificationDate=1747403010031&cacheVersion=1&api=v2) ### Step 19. Skip HTTP proxy setup Leave HTTP proxy field blank. It will take Debian a couple of minutes to configure apt and install necessary software. **If you face errors during this step - check your Internet connection** ![](https://ggcircuit.atlassian.net/wiki/download/attachments/15863083/image-20250516-134401.png?version=1&modificationDate=1747403044673&cacheVersion=1&api=v2) ### Step 20. Configure survey preferences Chose an option of your preference ![](https://ggcircuit.atlassian.net/wiki/download/attachments/15863083/image-20250516-134401.png?version=1&modificationDate=1747403044673&cacheVersion=1&api=v2) ### Step 21. Select software packages Select "SSH server" and "Standard system utilities" software collections. **!!! Important !!!** If the "Debian desktop environment" option is selected then **deselect it** and **make sure you have only two items selected** just like on the screenshot ![](https://ggcircuit.atlassian.net/wiki/download/attachments/15863083/image-20250516-134401.png?version=1&modificationDate=1747403044673&cacheVersion=1&api=v2) ### Step 22. Install GRUB Agree to the GRUB boot loader being installed to the master boot record ![](https://ggcircuit.atlassian.net/wiki/download/attachments/15863083/image-20250516-134401.png?version=1&modificationDate=1747403044673&cacheVersion=1&api=v2) ### Step 23. Select boot drive Select the drive that you have partitioned in [**Step 12. Select OS Drive**](https://help.ggcircuit.com/knowledge/install-debian-os-deprecated#step-12-select-os-drive) as the GRUB boot loader installation location ![](https://ggcircuit.atlassian.net/wiki/download/attachments/15863083/image-20250516-134401.png?version=1&modificationDate=1747403044673&cacheVersion=1&api=v2) ### Step 24. Finish the installation process ![](https://ggcircuit.atlassian.net/wiki/download/attachments/15863083/image-20250516-134401.png?version=1&modificationDate=1747403044673&cacheVersion=1&api=v2) ### Step 25. Restart the server Your server should restart, displaying a GRUB menu for a short while before letting you in to a Console Line Interface, better known as CLI ![](https://ggcircuit.atlassian.net/wiki/download/attachments/15863083/image-20250516-134401.png?version=1&modificationDate=1747403044673&cacheVersion=1&api=v2) ### Step 26. Check the installation After the reboot and GRUB load screen bypassed, you should see the following console input ![](https://ggcircuit.atlassian.net/wiki/download/attachments/15863083/image-20250516-134401.png?version=1&modificationDate=1747403044673&cacheVersion=1&api=v2) ### After this step you are **done with Debian installation** and can proceed to the next step - [**Install ggRock**](https://help.ggcircuit.com/knowledge/install-the-ggrock-server-application) ### Debian OS Installation special case, step 11 - Install Debian to a RAID array **If you have been installing Debian on the RAID array -** go to [**Install the boot loader (GRUB)**](https://help.ggcircuit.com/knowledge/appendix-iii-install-the-grub-boot-loader) document section prior to installing ggRock