Hi,
I changed EMMC04G-MK27-C01C to EMMC04G-MT32-01G10.
But I have I/O buffer errrors and can not read or write data on eMMC.
Here is some output of system:
ubuntu@ubuntu:~$ cat /sys/class/block/mmcblk*/device/name
SD16G
MT3204
ubuntu@ubuntu:~$ lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINTS
loop0 7:0 0 66M 1 loop /snap/core22/1124
loop1 7:1 0 66M 1 loop /snap/core22/1384
loop2 7:2 0 2.2M 1 loop /snap/modem-manager/543
loop3 7:3 0 33.3M 1 loop /snap/snapd/21188
loop4 7:4 0 33M 1 loop /snap/snapd/21469
mmcblk1 179:0 0 3.6G 0 disk
mmcblk1boot0 179:256 0 2M 1 disk
mmcblk1boot1 179:512 0 2M 1 disk
mmcblk0 179:768 0 29.2G 0 disk
-mmcblk0p1 179:769 0 29.2G 0 part
ubuntu@ubuntu:~$ sudo mkfs.ext4 /dev/mmcblk1
mke2fs 1.46.5 (30-Dec-2021)
Discarding device blocks: done
Warning: could not erase sector 2: Input/output error
Creating filesystem with 934560 4k blocks and 233856 inodes
Filesystem UUID: 9b2cb59e-dcfe-4846-b280-bd7b1eefa67c
Superblock backups stored on blocks:
32768, 98304, 163840, 229376, 294912, 819200, 884736
Allocating group tables: done
Warning: could not read block 0: Input/output error
Warning: could not erase sector 0: Input/output error
Writing inode tables: done
Creating journal (16384 blocks): done
Writing superblocks and filesystem accounting information: mkfs.ext4: Input/output error while writing out and closing file system