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Download Debian netinstall ISO
PeppermintOS [Debian] aarch64 current: https://sourceforge.net/projects/peppermintos/files/isos/XFCE/PeppermintOS-Debian_ARM_64.iso/download
PeppermintOS [Devuan] aarch64 current: https://sourceforge.net/projects/peppermintos/files/isos/XFCE/PeppermintOS-devuan_arm_xfce.iso/download
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Flash the ISO to a USB drive
dd if=~/Downloads/PeppermintOS-*version*.iso of=/dev/sdX
Alternatively, you can use Gnome Disks, balenaEtcher, or an imaging tool of your choice.
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Restart and boot from the USB drive that was created. (See: BIOS Navigation)
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When the installer loads, press [E] key on the first option labelled "PeppermintOS version - Live". Add the following to the line starting with 'linux':
amdgpu.pcie_gen_cap=0x4 iommu.passthrough=1
Then press [CTRL]+[X] of [F10] to continue installer.
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The Live environment should now be loaded, and you may have heavy graphical artifacting depending on GPU used.
Open the "Install PeppermintOS" icon on the desktop to continue installing.
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Reboot. When bootloader/GRUB appears, press [E] and repeat Step 4.
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Once logged in, complete the following steps to prevent crashing [AMD GPU's]
nano /etc/default/grub
GRUB_CMDLINE_LINUX_DEFAULT="amdgpu.pcie_gen_cap=0x4 amdgpu.noretry=0"
sudo update-grub
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Install the following to enable 'sddm' login manager with 'Cinnamon DE'. (least artifacting on AMD GPU's)
sudo apt install task-cinnamon-desktop sddm
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Reboot and log into your new install of PeppermintOS!
NOTE: If you are using an AMD GPU, you will probably need to apply the Mesa patch on under "Post-Install Recommendations" on the main page.