Compiling ODROID-XU 3.11-rc7 kernel, attempt 2

Previously …

Now that I have made my own serial port for the ODROID-XU, creating something omitted from this development board, I’m ready to try to compile my own kernel again. At least I should be able to debug any error messages this time.

I did everything in the previous posting, but this time built a uImage properly:

LOADADDR=40008000 make uImage dtbs
sudo cp arch/arm/boot/uImage /boot/uboot/uImage-3.11-rc7
sudo cp uInitrd /boot/uboot/uInitrd-3.11-rc7
sudo cp arch/arm/boot/dts/exynos5410-odroidxu.dtb /boot/uboot/

We end up with (where the bold files are the ones I have built):

$ ll /boot/uboot/
total 33047
-rwxr-xr-x 1 root root    5510 Sep 27 08:14 boot.ini
-rwxr-xr-x 1 root root   28603 Dec  7 16:34 exynos5410-odroidxu.dtb
-rwxr-xr-x 1 root root  293168 Sep 27 08:14 u-boot.bin
-rwxr-xr-x 1 root root 2113488 Dec  7 16:33 uImage-3.11-rc7
-rwxr-xr-x 1 root root 6518598 Sep 27 08:14 uInitrd
-rwxr-xr-x 1 root root 8104359 Dec  7 16:36 uInitrd-3.11-rc7
-rwxr-xr-x 1 root root 6518598 Nov  8 17:36 uInitrd-official3.4.5
-rwxr-xr-x 1 root root 5127832 Sep 27 08:13 zImage
-rwxr-xr-x 1 root root 5127832 Nov  8 17:36 zImage-official3.4.5

I boot this by interrupting u-boot and typing the load commands by hand. (Note that /boot/uboot is a FAT partition).

set bootargs console=ttySAC2,115200n8 loglevel=9 earlyprintk root=UUID=ad455a75-609c-4b3c-956b-bcef3ebc4603 ro
fatload mmc 0 43000000 uimage-3.11-rc7
fatload mmc 0 46000000 uinitrd-3.11-rc7
fatload mmc 0 49000000 exynos5410-odroidxu.dtb
bootm 43000000 46000000 49000000

This boots the kernel, but fails trying to find the root filesystem:

[    9.680000] mmc1: error -110 whilst initialising SD card
[    9.700000] mmc_host mmc1: Bus speed (slot 0) = 100000000Hz (slot req 300000Hz, actual 299401HZ div = 167)
[   11.730000] mmc1: error -110 whilst initialising SD card
[   11.750000] mmc_host mmc1: Bus speed (slot 0) = 100000000Hz (slot req 200000Hz, actual 200000HZ div = 250)
[   13.790000] mmc1: error -110 whilst initialising SD card
[   13.810000] mmc_host mmc1: Bus speed (slot 0) = 100000000Hz (slot req 196079Hz, actual 196078HZ div = 255)
[   15.850000] mmc1: error -110 whilst initialising SD card
[   17.680000] systemd[1]: No control group support available, not creating root group.
[   17.710000] systemd[1]: Expecting device dev-disk-by\x2duuid-ad455a75\x2d609c\x2d4b3c\x2d956b\x2dbcef3ebc4603.device...
[   17.720000] systemd[1]: Starting -.slice.
         Expecting device dev-disk-by\x2du[   17.730000] systemd[1]: Caught , dumped core as pid 1144.
[   17.730000] systemd[1]: Freezing execution.
uid-ad455a75\x2d609...c4603.device...

Update #2: See the comments section.

Update: It’s because the 3.11 kernel doesn’t support the MMC card. I’ll try later using an external USB drive.

4 Comments

Filed under Uncategorized

4 responses to “Compiling ODROID-XU 3.11-rc7 kernel, attempt 2

  1. Hakjoo Kim

    The 3.12 kernel does support the MMC card.

    • rich

      Thanks — I’ve updated the post. This kernel, correct?

      https://github.com/hardkernel/linux/tree/odroid-3.12.y

      Also do you happen to know if there is a u-boot that boots into Hyp mode? This is crucial for our work with virtualization and has proven to be a major stumbling block with other hardware.

      • Josep Subirats

        I’m also very interested in this aspect. I haven’t been able to compile the 3.12 kernel and run it. Even though the compilation is correct and I follow the steps in http://odroid.us/mediawiki/index.php?title=Step-by-step_Native_Compiling_a_Kernel , the kernel does not boot. I don’t know if it’s because I’m booting from the microSD (and maybe it’s not supported by the kernel) or what. Also, I didn’t take into account the HYP support by u-boot. Isn’t it included by default in the images available in the forum? I also was not able to enable KVM in the menuconfig. So far, there are many unconnected dots…đŸ˜¦

  2. Pingback: Compiling ODROID 3.12.3 kernel, attempt 3 | Richard WM Jones

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