topic Re: S32G emmc static partition set in S32G

S32G emmc static partition set

piaochunri — Mon, 30 Sep 2024 07:05:03 GMT

Hi experts,

I am testing boot from emmc and it is normal.But everytime after boot I need to config a new parttition of emmc to upload the sdcard image.I use command of "dd if=./s32g_emmc.sdcard of=/dev/mmcblk0 bs=1M && sync" and after reboot there is no partitions I created before.

So how can I keep the partition I created all the time.Thank you!

Re: S32G emmc static partition set

chenyin_h — Mon, 30 Sep 2024 10:07:36 GMT

Hello, @piaochunri

Thanks for your post.

May I know which version BSP you are working with? is there partation table included in your s32g_emmc.sdcard image?

Chenyin

Re: S32G emmc static partition set

piaochunri — Tue, 08 Oct 2024 06:18:10 GMT

I was using bsp 40.0 and my image s32g_emmc.sdcard was generated from yocto and I just changed its name.I think it contains partation table.

Re: S32G emmc static partition set

chenyin_h — Thu, 10 Oct 2024 02:01:26 GMT

Hello, @piaochunri

Thanks for the reply.

So you boot the board from eMMC, then after entering Linux, manually created new partitions for specific usage, further, you may execute "dd if=./s32g_emmc.sdcard of=/dev/mmcblk0 bs=1M && sync" on the board? and at last reboot, may I know if it is correct from my understanding?

If yes, then the new partition you created should not be seen after rebooting the board, since the partition table is replaced by the one included in the s32g_emmc.sdcard.

Chenyin

Re: S32G emmc static partition set

piaochunri — Thu, 10 Oct 2024 02:10:10 GMT

Yes.You are right.And I should replace the images by standalone way.Now it is solved.The partitions will not be erased.Thank you!