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Is there a way to execute the debian graphical installer from the debian system that i'm currently running?

I would like to install another debian system in a second partition but i cannot make a bootable usb drive with the debian netinst installer in it.

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  • Yes it is possible to install debian from an existing linux install (dual boot) through chroot and debootstarp but without gui
    – GAD3R
    Commented Jun 23, 2017 at 20:58
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    Not sure why this question is marked as unclear. My question is very direct and the selected answer dealt with it in the most straightforward way possible.
    – user2464424
    Commented Jul 4, 2017 at 20:06

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The expected way to install Debian to another partition from within a running Debian system is to use debootstrap. You'll need to format the partition manually and mount it first, then just run debootstrap with the options to install the Debian version you want along with whatever packages you want (for example, --include=kde-plasma-desktop).

chroot into it, configure it and install a kernel and some other tools. From your primary partition set up your boot manager (e.g. grub). Then you should be able to boot into your new partition.

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  • Ty, this settles it for anybody looking for the standard way. Personally however, i won't even touch the debootstrap procedure with a stick, i'll get a functioning usb drive instead.
    – user2464424
    Commented Jun 24, 2017 at 9:34

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