Unable to install TrueNAS Scale / Mount iso

TrueNAS General
1

I am new to TrueNAS and saw it on a few videos and wanted to change over my OS.
I have downloaded the IOS from the TrueNAS site. Scale stable. I then used Rufus to mount it. Mounted fine but hen got GRUB unknown filesystem error. I read on here to try BalenaEithcher. I try this and can select my iso and my drive, and then it pops up a CMD and authorise from Windows and back to the Balena screen, sits for like 5 seconds and gives a something went wrong error. Tried with 2 different USB drives, same result with both Rufus and Balena.

And Ideas?

Thank you all

2

Maybe iso file is corrupted. I do writing via link, in balenaetcher, select “Flash from URL” and paste link to iso file. Link can be copied from truenas download button using right mouse button and selecting “copy link”.

3

I don’t know if you’re just using wrong terminology, but you don’t mount the ISO with Rufus or Balena Etcher. You use those programs to format and write the ISO file onto a USB drive using Rufus or Balena Etcher.

4

You might want to double check that you have Other OS instead of Windows UEFI enabled in your BIOS, and also Legacy mode enabled too. This can sometimes stop your bootable USB from working.

5

Thank you, am I meant to start off with another OS installed? At the moment the HD is blank. The bootable USB seems to start but then Grub comes up with the unknown file system. So that’s where I get stuck.

6

You shouldn’t need another OS installed - if your BIOS settings are correct and your USB has been flashed correctly using Balena, you should be booting to the TrueNAS installation screen.

7

Yeah this is what I thought, the BIOS is now letting me go from the USB but I the get this grub thing. I’m going to try flashing the USB from the URL today rather than downloading it to see if that makes a difference.

8

Might be something similar that i have experienced myself.
I used Rufus to create bootable USB myself, and when i use F11 to get the boot-menu to select bootable device, i get presented with 2 devices/partitions on that one USB-drive.
If i selected the wrong, it loaded me in to a grub-commandline or something. I tried the second/other partition on the USB, and then it loaded the correct installer, and everything went fine from there.

So check if this is the case for you as well, if you get 2 “devices” to boot from from boot menu in BIOS/UEFI.

9

same problem experienced installing from download to USB on a Fujitsu MB (blank drives), No CSM options needed (or available). Using balenaEtcher from URL flashed to USB worked. TY

10

Can I jump in here?

I’ve tried Rufus first, then Balena using the downloaded ISO, none of which worked.

Just tried Balena using URL which also resulted in an USB which was not recognised by the m/b (Gigabyte B360N WIFI). I don’t know what to try next - maybe a different USB drive?

Martin

11

Is Secure Boot turned off? Have you checked the USB drive to see if it will boot on a different computer?

Edit, I just downloaded the 25.10.7 iso and used Balena to make a USB. It boots fine on an old computer that has a BIOs, no UEFI nor Secure Boot.

12

Secure Boot I can’t find. The BIOS does not even show anything for the previous tries so I’m trying a different USB stick.as I don’t have another computer to try it on. Thanks

13

Try checking in the BIOS for the USB support section. It looks like booting from USB can be disabled, depending on what is chosen for options. Hoping I had the correct MB manual

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14

on a Gigabyte B360N those sticks often fail because the board is picky about USB ports and CSM.

try:

  • plug the stick into a rear USB 2.0 port (black), not the front panel or USB 3 blue ones
  • BIOS: disable Secure Boot if it exists under Boot or Authentication. on that board it can hide under Windows 8 Features / CSM Support
  • set Boot Mode to UEFI, CSM Support Enabled if pure UEFI fails
  • make the stick with Rufus in DD Image mode (not ISO mode), or Balena again on a different brand stick

also from the TrueNAS download page, verify the iso sha256 before flashing. a bad write looks exactly like “usb not in boot menu”.

if the board still ignores it, boot once with F12 and look for UEFI: USB… vs just the drive name.

15

the board is in a SIlverstone NAS enclosure with no front ports so all USBs go in the back.

The stick I used initially was a 64GB Sandisk. I borrowed an 8GB generic stick from my daughter and all was fine. UEFI shown and the installation was OK.

Thanks to you and all who responded. Martin