0

I am trying to build a embedded Linux system for karo imx6 8033 som with 4GB SD card on it by using buildroot to build rootfs, Configuring kernel 4.11. I am using mfg tool to write the system on module. After flashing the SD card, I see that rootfs partition is just 300MB.

# df -h
Filesystem                Size      Used Available Use% Mounted on
/dev/root               282.5M    136.7M    130.8M  51% /
devtmpfs                342.1M         0    342.1M   0% /dev

uboot

TX6DL U-Boot > mmc part

Partition Map for MMC device 0  --   Partition Type: DOS

Part    Start Sector    Num Sectors     UUID            Type
  1     2048            30720           0cc66cc0-01     0c
  2     32768           614400          0cc66cc0-02     83
  3     647168          7086080         0cc66cc0-03     83

Each block is 512B so 614400*512=300MB. It is not enough for my work.

I want to learn in which step this configuration of partition is set while configuring rootfs, kernel or u-boot? MFG tool also has configuration file. If this partition is set while sending rootfs, kernel and U-boot, which parameter of MFG tool should I change to enhance the rootfs partition?

there is a way at this link after flashing the SD card. But I need a solution before flashing it.

  • 1
    It looks like your question is about the MFG tool for your board. Im guessing that your MFG tool is a script customized for your board, locate where the MFG executable lives and look at the steps. You may find it easier to 'manually' create the partitions and copy u-boot, kernel, and rootfs to the SD card. In short I think the MFG tool sets the partition size. – jc__ Jun 19 '17 at 19:45
0

I find the solution. In my case, I have chanced script named ucl2.xml file in Profiles/TX6/OS FIRMWARE in MFG Tool file. karo TX6 board has 4 GB MMC, so I made changes under "LINUX-MMC" In line 104

    <CMD state="Updater" type="push" body="$ [ -b /dev/emmc ] && (echo label-id:0x0cc66cc0; echo size=30720,type=c; echo size=614400,type=83; echo type=83) | sfdisk /dev/emmc"> Partitioning...</CMD> 

first "echo size" represents first partition above. second represents second partition. just add second partition "Num Sectors" with third partition "Num Sectors" and change the 614400 with 7700480

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.