# Issue with Intel® NUC tutorial **URL:** \ **Category:** General Discussions\ **Tags:** yocto, intel, thud\ **Created:** [September 12, 2019, 5:33pm UTC](https://hub.mender.io/t/issue-with-intel-nuc-tutorial/1010 "2019-09-12T17:33:47Z")\ **Posts on this page:** 8\ **Page:** 1
**Author:** ![SteeveGLDev](https://yyz2.discourse-cdn.com/flex036/user_avatar/hub.mender.io/steevegldev/32/349_2.png) [@SteeveGLDev](https://hub.mender.io/u/SteeveGLDev)\ **Post date:** [September 12, 2019, 5:33pm UTC](https://hub.mender.io/t/issue-with-intel-nuc-tutorial/1010/1 "2019-09-12T17:33:47Z")
I have a issue with the tutorial [Intel® NUC](https://hub.mender.io/t/intel-nuc/308) All build with success. When I put the \*.uefiimg.bz2 file on an USB drive, I got an error. It’s look like a kernel panic. ![IMG_20190912_133124](https://canada1.discourse-cdn.com/flex036/uploads/mender/original/1X/40f054b7f20e020ee91a0b67a5c6ac37071fbe95.jpeg) ---
**Author:** ![drewmoseley](https://yyz2.discourse-cdn.com/flex036/user_avatar/hub.mender.io/drewmoseley/32/47_2.png) [@drewmoseley](https://hub.mender.io/u/drewmoseley)\ **Post date:** [September 12, 2019, 8:20pm UTC](https://hub.mender.io/t/issue-with-intel-nuc-tutorial/1010/2 "2019-09-12T20:20:32Z")
The relevant bits seem to have scrolled off the screen but I suspect it’s just not able to find the root filesystem device. The default setting in the meta-mender-intel layer is /dev/mmcblk0: {quote} MENDER\_STORAGE\_DEVICE = “/dev/mmcblk2” MENDER\_GRUB\_STORAGE\_DEVICE = “hd0” {quote} It’s likely that on your NUC those device nodes need to be updated. I suspect “hd0” is fine for Grub but you need to figure out exactly what the rootfs device node is. I have a NUC that uses /dev/nvme-something but it will vary depending on the type of disk in your system. ---
**Author:** ![SteeveGLDev](https://yyz2.discourse-cdn.com/flex036/user_avatar/hub.mender.io/steevegldev/32/349_2.png) [@SteeveGLDev](https://hub.mender.io/u/SteeveGLDev)\ **Post date:** [September 12, 2019, 8:39pm UTC](https://hub.mender.io/t/issue-with-intel-nuc-tutorial/1010/3 "2019-09-12T20:39:47Z")
I’m trying to boot on the usb drive, so I use `MENDER_STORAGE_DEVICE = "/dev/sda"` ---
**Author:** ![drewmoseley](https://yyz2.discourse-cdn.com/flex036/user_avatar/hub.mender.io/drewmoseley/32/47_2.png) [@drewmoseley](https://hub.mender.io/u/drewmoseley)\ **Post date:** [September 13, 2019, 1:11pm UTC](https://hub.mender.io/t/issue-with-intel-nuc-tutorial/1010/4 "2019-09-13T13:11:46Z")
It’s possible that the USB drive is not /dev/sda. Do you have another OS disk you can use to check? I _think_ on my NUC, the USB drive shows up as /dev/hda but I’m away from the office and cannot confirm. You may also see the device nodes during the kernel boot logs as it scans the devices. It’s difficult without a serial port but taking a video of the boot sequence may be instructive. ---
**Author:** ![SteeveGLDev](https://yyz2.discourse-cdn.com/flex036/user_avatar/hub.mender.io/steevegldev/32/349_2.png) [@SteeveGLDev](https://hub.mender.io/u/SteeveGLDev)\ **Post date:** [September 16, 2019, 3:51pm UTC](https://hub.mender.io/t/issue-with-intel-nuc-tutorial/1010/5 "2019-09-16T15:51:57Z")
Yes, I used a live linux to check the disk and the usb is sda. The last think I tested is disabling the onboard mmc. Now I got a more readable message. ![IMG_20190916_114719](https://canada1.discourse-cdn.com/flex036/uploads/mender/original/1X/0b79e99fa05aa902b693612f7e260e37de2fe93f.jpeg) The usb drive is not available in the boot process? ---
**Author:** ![mirzak](https://yyz2.discourse-cdn.com/flex036/user_avatar/hub.mender.io/mirzak/32/2056_2.png) [@mirzak](https://hub.mender.io/u/mirzak)\ **Post date:** [September 17, 2019, 8:35am UTC](https://hub.mender.io/t/issue-with-intel-nuc-tutorial/1010/6 "2019-09-17T08:35:10Z")
It does not seem that you any devices visible above. Can you check if you have `rootwait` defined in Linux kernel arguments? You can check this by inspecting the `grub.cfg` file on the first partition of your USB flash drive. ---
**Author:** ![SteeveGLDev](https://yyz2.discourse-cdn.com/flex036/user_avatar/hub.mender.io/steevegldev/32/349_2.png) [@SteeveGLDev](https://hub.mender.io/u/SteeveGLDev)\ **Post date:** [September 17, 2019, 3:10pm UTC](https://hub.mender.io/t/issue-with-intel-nuc-tutorial/1010/7 "2019-09-17T15:10:30Z")
Nope, no `rootwait` in `grub.cfg`: `set console_bootargs="console=tty0,115200n8 console=ttyS0,115200n8 console=ttyO0,115200n8 console=ttyAMA0,115200n8"` I thought it was fixed with [https://github.com/mendersoftware/grub-mender-grubenv/pull/7](https://github.com/mendersoftware/grub-mender-grubenv/pull/7) Anyway, has workaround I booted with a live linux and dd the IMG to the MMC ---
**Author:** ![drewmoseley](https://yyz2.discourse-cdn.com/flex036/user_avatar/hub.mender.io/drewmoseley/32/47_2.png) [@drewmoseley](https://hub.mender.io/u/drewmoseley)\ **Post date:** [September 17, 2019, 7:29pm UTC](https://hub.mender.io/t/issue-with-intel-nuc-tutorial/1010/8 "2019-09-17T19:29:21Z")
That fix may be in the mender-grub-grubenv source but the Yocto branch you are on may not yet have it. If you can test it and submit a PR against meta-mender that would be most appreciated.