I am trying to install Devuan Linux (a Debian derivative), but I get stuck at the beginning.

  • Downloaded the DVD ISO: devuan_ascii_2.0.0_amd64_dvd-1.iso
  • Decompressed the ISO file on a USB key with Rufus 3.1; everything seems to be fine, I get the complete directory hierarchy.
  • The laptop (Dell Precision 7720) has an empty main SSD drive.
  • I boot the laptop from the USB key.

Note: when decompressing the ISO file on the USB key with the Rufus tool, in the "Create a bootable disk using" dialog, I tried both ISO and DD modes, with the same result.

After a few questions, I get to this menu:

Devuan installer main menu

Choose the next step in the install process:

Choose language  
Access software for a blind person using a braille display  
Configure the speech synthesizer voice  
Configure the keyboard  
Detect an mount CD-ROM  
Load installer components from CD  
Change debconf priority  
Check the CD-ROM(s) integrity  
Save debug logs  
Execute a shell  
Abort the installation  

When I get to the point "Detect an mount CD-ROM", I tried both specifying I have no CD-ROM, and trying to cheat hoping it would have taken the USB key as a CD-ROM. None worked.

When selecting "Load installer components from CD", I get the error "No common CD-ROM drive was detected".

What am I doing wrong? At the beginning the installation from USB is fine, but then it seems the only option is to continue from a CD-ROM (for which I have no drive).


You need to download the devuan_ascii_2.0.0_amd64_netinst.iso.

The image you have downloaded is for use by a DVD. Netinst is a network install and does not care whether you are installing from DVD, CD, or USB, you just need working internet.

From what I see this is your only option, assuming you have internet.

  • From where I am now, I cannot install through the network. – Pietro Jun 28 '18 at 17:06
  • I tried to install from the network, but I got the same result. – Pietro Jun 29 '18 at 16:24
  • Using the netinst.iso? That shouldn't happen. Unless your BIOS is misconfigured in some way. And also, if in expert mode it accepts your USB, why not install via expert mode? – Fanatique Jul 2 '18 at 7:28
  • Yes. With both netinst and DVD image, I got what you can see here. – Pietro Jul 2 '18 at 14:28

Selecting an expert mode installation, the installer accepts the USB key as a CD.
When installing in normal mode, the USB key is not accepted.

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