Sorry, seems to be a false alert.

After rebuilding u-boot it works fine again.

U.Mutlu wrote on 04/10/2019 12:37 AM:

Hi folks,

# U-Boot 2019.04 Configuration

I just updated to the latest version via git. My previous version was the recent 2019.04-rc4.

Now in this latest version I think a bug shows up:

Inside Linux on the device, suddenly the following command no longer works:

# fdisk -l /dev/mmcblk0 fdisk: cannot open /dev/mmcblk0: Input/output error

# ls -l /dev/mmcblk0 brw-rw---- 1 root disk 179, 0 Jan 1 1970 /dev/mmcblk0

The device is present, but fdisk cannot read the partitions, although u-boot has successfully used the boot partition of this SD card to boot Linux. IMHO a funny situation, isn't it? :-)

This always had worked for me, up until now. Is this more a linux issue or a u-boot issue?

Let me know if you need specific data.

Thx