Rock pi 4B ubuntu server os Input/output error

[vasudhevan]

Hi,
Why we getting Input/output error ?
How to solve this issue ?

  [  582.755361] systemd-gpt-auto-generator[3904]: Failed to dissect: Input/output error
  [  583.034302] systemd-gpt-auto-generator[3917]: Failed to dissect: Input/output error
  [  583.199432] systemd-gpt-auto-generator[3933]: Failed to dissect: Input/output error
   Created symlink /etc/systemd/system/multi-user.target.wants/rsync.service → /lib/systemd /system/rsync.service.
  [  583.665757] systemd-gpt-auto-generator[3952]: Failed to dissect: Input/output error
   Setting up kpartx (0.7.4-2ubuntu3) ...
  Processing triggers for systemd (237-3ubuntu10.31) ...
  [583.875734] systemd-gpt-auto-generator[3966]: Failed to dissect: Input/output error

Thanks & Regards
Vasu

[vasudhevan]

I noticed whenever we used sd card no error is coming if we use emmc most of time Input/Output error is coming.
eMMC some partition is locked.

Why only emmc we getting Input/Output error ?
How to solve ?

Thanks & Regards
Vasu

[jack]

Hi,

This error is normal because for eMMC, this is extra partition for boot can not be accessed directly:

/dev/mmcblk0boot0 - BOOT0 partition
/dev/mmcblk0boot1 - BOOT1 partition
/dev/mmcblk0rpmb - RPMB partition

Check this thread:

Flashing bootloader to /dev/mmcblk0boot0

Hi, You can just use it as how you use it on other platform. It’s an eMMC feature, not ROCK Pi 4. Basically configure the boot partition as the default partition with mmc-utils. eMMC devices are partitioned into several hardware partitions but only one can be selected at a time: BOOT - one or more small partitions intended for boot firmware (eMMC 4.3 spec requires 2 boot and 1 user partition) RPMB - Replay Protected Memory Block - intended to store secure data (ie DRM content protection key…

[vasudhevan]

Hi Jack,
Input/Output error coming most of time example installing packages and reading files and commands etc…
Because of this issue some package not installing properly.
How to solve this issue ?

Thanks & Regards
Vasu

[vasudhevan]

Hi Jack,
eMMc Module V1.2 only we getting error.
SD card i am not getting any error.
Whenever we type sudo systemctl enable service that only we getting Input/Output error.
How to solve the issue ?

Thanks & Regards
Vasu

[aaditya]

It is an issue with upstream systemd, said to be fixed in later version:

systemd-gpt-auto-generator: Failed to dissect: Input/output error (boot/rpmb context)

To “solve” the issue, would need to update to a version of systemd that has this fix.

[aaditya]

Another option maybe to disable the systemd feature.
https://www.freedesktop.org/software/systemd/man/systemd-gpt-auto-generator.html

[vasudhevan]

Hi aaditya,
Thank you for your reply.
Why this issue with only eMMC ?
SD card no issue.

[aaditya]

@vasudhevan

Why this issue with only eMMC ?
SD card no issue.

Its because eMMC can contain some special partitions as @jack explained, which systemd didnt handle correctly.

SD card dont have those special features.

Kind regards