[Bug]: armbian-install fails on systems with multiple disks (e.g., eMMC and NVMe) and empty partition table

[nbnbnd]

What happened?

1. I have a NanoPC-T6 with a on-board emmc as /dev/mmcblk0 and a nvme disk as /dev/nvme0n1, with empty partition table (no partitions) on both devices
2. Boot with SD card, run sudo armbian-install
3. Select any install method, e.g. 4 Boot from MTD Flash - system on SATA, USB or NVMe
4. Proceed with the installation

The script is expected to present a selection menu or ask for a manual input, however, it proceeds cancatenating both device names, creating an invalid device variable ($diskcheck becomes "mmcblk0 nvme0n1").
This causes the disk space check to fail, and reports: There is not enough free capacity on /dev/mmcblk0 nvme0n1.

The problem seems to be caused by diskcheck function, which simply combines all detected disk names into a single variable

build/packages/bsp/common/usr/bin/armbian-install

Line 60 in 191d6db

diskcheck=$(lsblk -Al | awk -F" " '/ disk / {print $1}' | grep -E '^sd|^nvme|^mmc' | grep -v "$root_partition_device_name" | grep -v boot)

How to reproduce?

1. I have a NanoPC-T6 with a on-board emmc as /dev/mmcblk0 and a nvme disk as /dev/nvme0n1, with empty partition table (no partitions) on both devices. Other device with a emmc and a hard drive / usb drive is expected to reproduce same problem.
2. Boot with SD card, run sudo armbian-install
3. Select any option of 1-4, e.g. 4 Boot from MTD Flash - system on SATA, USB or NVMe
4. Proceed with the installation, and error occurs: There is not enough free capacity on /dev/mmcblk0 nvme0n1

On which OS are you observing this problem? (for easier diagnosis please provide logs with armbianmonitor -u)

Armbian Ubuntu 24.04 Noble

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[github-actions]

Hey @nbnbnd! 👋

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[nbnbnd]

My apologies, it appears I've submitted this issue to the wrong repository. Source code for armbian-install is in the armbian/build repository.

Could a maintainer please move this issue to the armbian/build repository? Thank you for your help!

[github-actions]

Hey @nbnbnd! 👋

Thanks for opening your first issue with the Armbian project — we’re glad to have you here! 🧡
Your input doesn’t just help us improve the project — it benefits everyone who uses Armbian.

If you'd like to stay informed about project updates or collaborate more closely with the team,
you can optionally share some personal contact preferences at armbian.com/update-data.
This helps us keep in touch without relying solely on GitHub notifications.

Also, don’t forget to ⭐ star the repo to support the work — and welcome aboard! 🚀

[github-actions]

Jira ticket: AR-2764