erase-install: Install/Update fails at very end as it is about to start the update for macOS - Error Timeout Reached
Describe the bug A clear and concise description of what the bug is. I am in the process of updating 12.6 > 12.6.1 on x86 and arm64 laptops and on some I am seeing issues where it gets to the very end and then fails or files out and the error message that is provided is vague. Recently I was told to use the --update and this will verify if there is a current install then if it is valid it will use it or overwrite it.
To Reproduce
- If applicable, please provide the full command used when running the script. Full command:
- Please describe how the script was run. [e.g. Standalone via Terminal, in Jamf Policy from the uploaded pkg, in Jamf policy from uploaded script only, via another MDM provider] The script is being run from Jamf Pro as a policy. and set to run 3 times if it fails
Expected behavior A clear and concise description of what you expected to happen. I am expecting the upgrade process to finish successfully. I would also like to know why it might be failing with a little more clarity. I am not saying the logs are not useful here, not at all, I am saying that all looks to be going well then it simply times out and fails at the end.
Code/log output
Please supply the full command used, and if applicable, add full output from Terminal or from /var/log/erase-install.log
. Either upload the log or paste the output in a code block (triple backticks at the start and end of the code block please!).
Screenshots
If applicable, add screenshots to help explain your problem.
Environment (please complete the following information):
- OS version [e.g. 12.0.1] = 12.6.0
- erase-install version [e.g. 24.0] - please upgrade to the latest version before submitting a bug report. Latest version 27.1
Additional context
Add any other context about the problem here.
I see the process start, I see in the logs that the end user confirms the install, and the password for the volume owner is supplied and accepted. The laptop has adequate storage and is connected to power.
I also truly appreciate your help and dedication to this process as it has helped me and my organization upgrade many laptops.
I am wanting to figure out if this error or the error is due to a corrupt downloaded file if the laptop goes to sleep and if the commands to startosinstall are failing.

I think is also important to note that in testing I am not seeing this issue on most of my test pilot laptops and team.
The PID does vary at the end of the run if the process does fail.
About this issue
- Original URL
- State: closed
- Created 2 years ago
- Comments: 31 (12 by maintainers)
For all of you still seeing the error after upgrading to v29.2, can you make sure that if there was an installer downloaded by 29.1, you delete it before trying again. Using
--overwrite
will achieve this.I have exact error code for this issue as well, however, it doesn’t seems the issue related to startosinstall. Here is the log