usb boot from 5tb hdd

korn16ftl3

Pi Model or other hardware: raspberry pi 4 8GB

Power Supply used: OEM ROG ally USB C charger

RetroPie Version Used : 4.8

Built From: pre-build from site filename: retropie-buster-4.8-rpi4_400.img.gz

USB Devices connected: 5TB WD passport ultra (boot device), Dell USB keyboard, onn brand USB mouse

Controller used: INNEXT clone snes controller

Error messages received: could not expand filesystem, please try raspi-config or rc_GUI. Root partition resize failed.

Guide used: did the normal install, updated bootloader via sd flash for USB boot, wrote retropie image to the USB HDD with raspberry pi imager

How to replicate the problem: simply write the retropie image to my hdd and try to load the OS, does not repeat on USB stick however so it leads me to believe i have some kind of problem with the hdd.

I'm trying to get retropie to boot from a 5TB usb HDD and i can write the image and it loads but the problem seems to be that when it first boots up its supposed to resize the partitoon to the full size of the drive, however it seems that for some reason this fails on the hdd.

I get a big grey and blue screen that comes up telling me it cant resize the partition, and asks me to try with raspi-config, however when I get into raspi-config (either threw cli or the retropie GUI) option 7 (where the resize option is supposed to be) is missing and unable to be selected. I have no idea what rc_GUI is and have not attempted this as of yet.

Is it even possible to boot from a 5TB hdd or am i missing, doing something wrong here?

mitu

I think for >4Tb drivers you need a GPT partition table, whereas the one provided with the RetroPie image is just MBR.

Is the current RaspiOS Lite version able to resize the partition ? You may want to install the RaspiOS first then do a manual install if it works.

korn16ftl3

@mitu said in usb boot from 5tb hdd:

I think for >4Tb drivers you need a GPT partition table, whereas the one provided with the RetroPie image is just MBR.

Is the current RaspiOS Lite version able to resize the partition ? You may want to install the RaspiOS first then do a manual install if it works.

i tried using gparted and manually resizing it anf that also failed.

i also installed raspian os on the hdd and it did everything in MBR, even split the drive into 2 partitions one was unallocated.

its not looking like this is a possibility

mitu

@korn16ftl3 said in usb boot from 5tb hdd:

its not looking like this is a possibility

I know users in the RPi forums have made this work, but you have to use gparted to convert the partition table to GPT (from MBR), from a separate/different system - a Linux system which can run gparted on the (unmounted) SSD disk. If you have a PC system you can use gparted from there (with a Live USB Linux - https://gparted.org/liveusb.php).

korn16ftl3

@mitu said in usb boot from 5tb hdd:

@korn16ftl3 said in usb boot from 5tb hdd:

its not looking like this is a possibility

I know users in the RPi forums have made this work, but you have to use gparted to convert the partition table to GPT (from MBR), from a separate/different system - a Linux system which can run gparted on the (unmounted) SSD disk. If you have a PC system you can use gparted from there (with a Live USB Linux - https://gparted.org/liveusb.php).

I have made a similar attempt like what you are mentioning (at least I think) by loading into raspberry pi os from as card installing gparted then plugging in the 5tb usb had (non-ssd) and using gparted to convert from MBR to GPT. After that I use a windows machine and the pi image writer to write retries (and I’ve even tried raspi os) to the usb hdd. The problem im finding is that it just turns the hdd back to MBR.

After some thought I do believe there is a way (with some of my windows hdd tools) to convert an MBR hdd to GPT with the OS installed and not destroying the data. I will have a look later on today. Not sure how this will fair however as after the image writer the hdd will be in Linux format (ext4 I think it is?) so maybe I’ll have a look with both windows tools an gparted after the image write and see what options I have.

mitu

@korn16ftl3 said in usb boot from 5tb hdd:

After that I use a windows machine and the pi image writer to write retries (and I’ve even tried raspi os) to the usb hdd. The problem im finding is that it just turns the hdd back to MBR.

You need to do the conversion after you write the image, otherwise writing the image again will just re-initialize the disk with a MBR boot signature.