For nodes installing after the initial controller configuration, there are installation parameters for the host you can set, boot_device and rootfs_device. For example, from the CLI: system host-update 3 \ boot_device=/dev/disk/by-path/pci-0000:00:0d.0-ata-1.0 \ rootfs_device=/dev/disk/by-path/pci-0000:00:0d.0-ata-1.0 This can also be done via browser, by editing the host. For initial installation of controller-0 from ISO, you can edit the boot cmdline by hitting tab on your selection, and modify these parameters. In stx-3.0, we've introduced a utility called update-iso.sh that you can use to create a modified copy of the installation ISO with modified boot parameters: https://opendev.org/starlingx/utilities/src/branch/master/utilities/platform... Example: update-iso.sh -i bootimage.iso -o updated-bootimage.iso \ -p boot_device=/dev/disk/by-path/pci-0000:00:0d.0-ata-1.0 \ -p rootfs_device=/dev/disk/by-path/pci-0000:00:0d.0-ata-1.0 Hope this helps! From: von Hoesslin, Volker [mailto:Volker.Hoesslin@swsn.de] Sent: Friday, November 15, 2019 9:17 AM To: 'starlingx-discuss@lists.starlingx.io' Subject: [Starlingx-discuss] RC2.0 - Change install device Hi, how can i change the install device. My storage-node have some disks, but /dev/sda should not be my primary boot device. I want to install stx stuff at /dev/sdk, how can I change the destination install device for some hosts ? greez & thx, Volker...