topic Re: [yocto] Resizing rootfs on first boot in i.MX Processors

[yocto] Resizing rootfs on first boot

li_hong — Wed, 05 Jun 2019 11:26:54 GMT

Hi Team，

I'm using Yocto project and I use i.MX6 sabre-SD Quad as my platform.

I'd like to be able to bulid an SD card image ,deloy to a system on a 8G emmc.

While boot up device and entry terminal ,I find out the root mounted only 2.6G,

How to resize automatically on fist boot.

Thank you in advance.

Re: [yocto] Resizing rootfs on first boot

gusarambula — Wed, 05 Jun 2019 16:52:58 GMT

Hello Hong Li,

The SD card image generated depends on the size of the rootfs. The easiest way to add more space would be to edit the EXTRA_SPACE variable in Yocto. You can see a bit more on how to do this on the following Community Document.

https://community.nxp.com/docs/DOC-105521

Otherwise you would need to use u-boot to resize the partition through a script before loading the kernel and rootfs, but I haven’t tested this option.

I hope this helps!

Regards,

Re: [yocto] Resizing rootfs on first boot

davidvescovi — Wed, 05 Jun 2019 19:11:16 GMT

If you are using an SD card it might be easier to just plug it into a USB card reader, attach it to a ubuntu machine and use the disk tools to expand the partition.

Re: [yocto] Resizing rootfs on first boot

glennelliott — Fri, 11 Oct 2019 19:34:53 GMT

Anyone suggesting that you must manually resize the partition, or inflate the partition in Yocto, has never had the joy of using a Raspberry Pi sdcard image. It automatically increases the filesystem/partition on first boot if there is available space.

Re: [yocto] Resizing rootfs on first boot

bgaurav1718 — Wed, 28 Aug 2024 07:30:35 GMT

Hi @gusarambula, do you have any reference article to resize the parition with u-boot? I