# U-boot Error for TI Jacinto 6+ board
**URL:** https://hub.mender.io/t/u-boot-error-for-ti-jacinto-6-board/5234
**Category:** Board Integrations
**Tags:** uboot, ti
**Created:** [September 7, 2022, 6:23am UTC](https://hub.mender.io/t/u-boot-error-for-ti-jacinto-6-board/5234 "2022-09-07T06:23:47Z")
**Posts on this page:** 4
**Page:** 1
### Author:  [@Nalin](https://hub.mender.io/u/Nalin)
#### Post date: [September 7, 2022, 6:23am UTC](https://hub.mender.io/t/u-boot-error-for-ti-jacinto-6-board/5234/1 "2022-09-07T06:23:47Z")
Hi there,
I am trying to integrate mender with the TI Jacinto 6+ board (dra7xx).
I have modified the u-boot by applying the generic Mender patches from Github ( [https://github.com/mendersoftware/meta-mender/tree/master/meta-mender-core/recipes-bsp/u-boot/patches](https://github.com/mendersoftware/meta-mender/tree/master/meta-mender-core/recipes-bsp/u-boot/patches) ) and have made board specific changes as per mender documentation. ([Manual U-Boot integration | Mender documentation](https://docs.mender.io/system-updates-yocto-project/board-integration/bootloader-support/u-boot/manual-u-boot-integration)). I have cross compiled and generated the resultant u-boot.img and used it with the mender-converted image to boot the board but am getting the following error:
> Welcome to minicom 2.7.1
>
> OPTIONS: I18n
> Compiled on Dec 23 2019, 02:06:26.
> Port /dev/ttyUSB0, 11:20:55
>
> Press CTRL-A Z for help on special keys
>
> �
> U-Boot SPL 2016.05-dirty (Aug 30 2022 - 17:33:42)
> DRA762-GP ES1.0
> no pinctrl for hs200\_1\_8v
> no pinctrl for ddr\_1\_8v
> \*\*\* Warning - bad CRC, using default environment
>
> Trying to boot from MMC1
> \*\*\* Warning - bad CRC, using default environment
>
> reading u-boot.img
> reading u-boot.img
> reading u-boot.img
> reading u-boot.img
>
> U-Boot 2016.05-dirty (Aug 30 2022 - 17:33:42 +0530)
>
> CPU : DRA762-GP ES1.0
> Model: TI DRA762 EVM
> Board: DRA76x EVM REV A.2
> DRAM: 4 GiB
> MMC: mmc@4809c000: fail to find sdr104 mode FDT\_ERR\_NOTFOUND
> no pinctrl for sdr104
> mmc@4809c000: fail to find ddr50 mode FDT\_ERR\_NOTFOUND
> no pinctrl for ddr50
> mmc@4809c000: fail to find sdr50 mode FDT\_ERR\_NOTFOUND
> no pinctrl for sdr50
> mmc@4809c000: fail to find sdr25 mode FDT\_ERR\_NOTFOUND
> no pinctrl for sdr25
> mmc@4809c000: fail to find sdr12 mode FDT\_ERR\_NOTFOUND
> no pinctrl for sdr12
> OMAP SD/MMC: 0, OMAP SD/MMC: 1
> \*\*\* Warning - bad CRC, using default environment
>
> \*\* First descriptor is NOT a primary desc on 1:1 \*\*
> GUID Partition Table Header signature is wrong: 0x7266207470697263 != 0x5452415020494645
> part\_get\_info\_efi: \*\*\* ERROR: Invalid GPT \*\*\*
> GUID Partition Table Header signature is wrong: 0x0 != 0x5452415020494645
> part\_get\_info\_efi: \*\*\* ERROR: Invalid Backup GPT \*\*\*
> ERROR: cannot find partition: ‘userdata’
>
> at arch/arm/cpu/armv7/omap-common/utils.c:199/mmc\_get\_part\_size()
> Warning: fastboot.userdata\_size: unable to calc
> SCSI: SATA link 0 timeout.
> AHCI 0001.0300 32 slots 1 ports 3 Gbps 0x1 impl SATA mode
> flags: 64bit ncq stag pm led clo only pmp pio slum part ccc apst
> scanning bus for devices…
> Found 0 device(s).
> Net:
> Warning: ethernet@48484000 using MAC address from ROM
> eth0: ethernet@48484000
> Hit any key to stop autoboot: 0
> Saving Environment to MMC…
> Writing to MMC(0)… done
> bad MBR sector signature 0x745f
> \*\* Invalid partition 2 \*\*
> bad MBR sector signature 0x745f
> \*\* Invalid partition 2 \*\*
Kindly let me know how I can proceed further.
---
### Author:  [@oleorhagen](https://hub.mender.io/u/oleorhagen)
#### Post date: [September 8, 2022, 3:53pm UTC](https://hub.mender.io/t/u-boot-error-for-ti-jacinto-6-board/5234/2 "2022-09-08T15:53:33Z")
Have you tried stopping the auto-boot, and having a look at the partitions?
---
### Author:  [@levantung](https://hub.mender.io/u/levantung)
#### Post date: [April 1, 2026, 8:45am UTC](https://hub.mender.io/t/u-boot-error-for-ti-jacinto-6-board/5234/3 "2026-04-01T08:45:57Z")
hi @oleorhagen
i have same error pls help me check it ?
---
### Author:  [@TheYoctoJester](https://hub.mender.io/u/TheYoctoJester)
#### Post date: [April 1, 2026, 2:13pm UTC](https://hub.mender.io/t/u-boot-error-for-ti-jacinto-6-board/5234/4 "2026-04-01T14:13:41Z")
Hi @levantung,
Just a quick guess, but aren’t the Jacinto boards essentially UEFI-via-Grub in standard boot style? If so, then approaching them like the `beaglebone-ai64` should be straightforward: [meta-mender-community/kas/beaglebone-ai64.yml at scarthgap · mendersoftware/meta-mender-community · GitHub](https://github.com/mendersoftware/meta-mender-community/blob/scarthgap/kas/beaglebone-ai64.yml)
Greetz,
Josef