Installing OpenMediaVault on USB fails to start.
Installing OpenMediaVault on USB fails to start.
I set up OpenMediaVault (version 5 or 6) on a USB drive following the instructions (https://openmediavault.readthedocs.io/en...n_usb.html). After rebooting, GRUB reported an issue reading the diff device. Later I received more details and the precise error message (it was midnight in Germany at the time). I can still boot by opening the GRUB shell and entering commands, though that isn’t the intended method.
Use Rufus or BalenaEtcher to recreate the image. Confirm the ISO file remains intact after the process. If issues persist, switch to a different USB port or try a distinct USB device. Consider using another USB drive or testing on another computer.
Hello, I tried before the install couldn't proceed because my mouse is outdated/problematic. The keyboard needs to be connected to the only functional port (USB port 1) or I can't use it—my mouse has four ports but two are completely non-functional. My USB drive is in port 2, while ports 3 and 4 are defective. The install worked fine just after booting OMV, but starting the installation from GRUB didn’t work automatically. I tried a grub rescue/shell approach: set root=(hd0,msdos1), prefix=(hd0,msdos1)/boot/grub, insmod normal, normal. Now it boots properly. This seems like a low-level fix I found while searching for a GRUB error about accessing or writing to a device other than the main disk. Error occurred when trying to read/write outside hd0. Updated July 29, 2022 by trasher002 added further details.
Mounting the USB drive may require some adjustments, but you can modify the default grub menu file (grub.cfg) to match the changes needed in the rescue shell. If you're unsure where to begin, share the ISO link you're using, and I can edit it for you once you confirm it's legal.
Just reviewed grub.cfg – it looks like some changes got removed, leaving HD2 references. I fixed those to HD0. I’ll test it tomorrow while working on another system.