Upgrade to Mojave, Lacie 2big drive no longer accessible

The latest EtreCheck report still shows all those extensions even though everything is unloaded which to me means you ran the report from Safe Mode. Removing the software and uninstalling software is two different things. You need follow the directions from the developer on how to uninstall their software. For some apps you just move them to the Trash, but for other apps such as the Lacie software which installs multiple items throughout the OS you need to run the official uninstaller to remove all remnants of the software. If the developer does not provide an uninstaller or the uninstaller fails, then they usually provide instructions on how to manually remove each file. If you already followed the developer's instructions to uninstall the software, then you will need to go in and manually remove each of the files shown in the EtreCheck report which is associated with the Lacie software (probably includes the FUSE driver as well).

By booting into Safe Mode and having the drive work proves some third party software is the source of the problem. You just need to uninstall the software properly which I don't believe has been done since the most recent EtreCheck report still shows the Lacie software is still installed.

I highly recommend uninstalling CleanMyMac as apps of this type are not needed and usually cause more problems than they solve plus they also impact system performance. Both CMM & Lacie software are the most likely culprits here although you do have a couple other items I am unfamiliar with, but these two items should be the first to go.

Sounds like you have some driver or other software which is interfering with the drive. Safe Mode disables third party drivers and also disables Startup & Login Items. Run EtreCheck and post the report here using the "Additional Text" icon which looks like a piece of paper.

You still have residual LaCie extensions deep in your operating system:

/Library/Extensions

LaCieMvumi.kext (1.3.21 - SDK 10.14)

/System/Library/Extensions

LaCieScsiType00.kext (1.9.1 - SDK 10.5)

LaCie_RemoteComms.kext (1.0.1 - SDK 10.5)

The problem with these drive manufacturer system extensions and drive firmware combinations is that if they get even slightly out of date along the way, an operating system upgrade or update can render the drive not usable.

I can't tell if this is what is happening with you, but first thing I would say is to completely remove all those LaCie-related kexts and extensions from your system. Even after doing that, your external drive's firmware might be still needing them to work properly. So after completely cleaning your system, I would copy all the files from the LaCie disk to a safe place using the computer you have that still works with it, then erase and reformat the disk as GUID HFS+, do not install any special drive firmware (just leave it as a vanilla GUID HFS+ drive), copy the files back, and see if it can be used on your "cleaned" Mojave system. As long as you have a reliable copy/backup (maybe make two backups) of those files, this does not put anything at risk.

gar4ever wrote:

Thanks for the detailed and easy to understand reply.

I have removed all the Lacie and CMM software as specified by your instructions and the companies procedure. Unfortunately, that did not fix the issue.

Can you see anything else that might be causing this?

As @steve626 mentions, there is still one CMM extension remaining so the CMM uninstaller did not remove everything. You may need to go in and manually remove that last CMM extension. This is another reason contributors on these forums do not like some of these third party apps like CMM since the developers cannot be bothered to create a proper uninstaller (or they want to keep their hooks in you as a form of malware). Reboot the computer after removing it and check that EtreCheck doesn't show CMM anymore.

If removing the last CMM extension does solve the problem, then uninstall Drive Genius since it does work with drives so it may be interfering.

You have this LaCie desktop manager installed:

Launchd: /Library/LaunchAgents/com.lacie.LaCieDesktopManagerAgent.plist

Executable: /Applications/LaCie Desktop Manager.app/Contents/Helpers/LDM.app/Contents/MacOS/LDM --args -daemon

Launchd: /Library/LaunchDaemons/com.lacie.LaCieDesktopManagerDaemon.plist

Executable: /Applications/LaCie Desktop Manager.app/Contents/Helpers/LDM.app/Contents/MacOS/LaCieDesktopManagerDaemon

And it has apparently installed other related extensions and also a login item.

https://www.lacie.com/support/kb/compatibility-with-macos-1014-mojave-007861en/ LacIe's web site indicates that a firmware update may be required if the disk does not show up on the desktop under Mojave.

You have many kexts and extensions, some of which I don't know much about. Many of which seem to be quite old, potentially not compatible with Mojave.

System modifications - There are a large number of system modifications running in the background.

Runaway user process - A user process is using a large percentage of your CPU.

Not sure why there is a runaway user process when you presumably don't have much running 1 hour after boot up? Also, dozens (more than 70) of 32-bit applications is indicative of older software or system extensions. Are you certain which extensions you have installed and are using are compatible with Mojave?

CleanMyMac is still there. Recommend this be removed. The report says it was installed in 2014?

[Loaded] com.macpaw.CleanMyMac2.Agent.plist (? def16639 - installed 2014-12-01)

apcupsd -- I am not familiar with this but from what I can tell, this is a system extension to interact with a UPS device. But the most recent version appears to have been released for 10.11. Do you know that this is compatible with Mojave?

APC PowerChute Personal Edition (installed 2015-09-05)

FTDIkext -- what is the vendor for this extension? I recall that it is used as a driver for USB devices, but the corresponding Apple driver can conflict and sometimes one or the other is uninstalled to eliminate a potential conflict. What is FTDIkext used or installed for?

PXHCD -- not sure, but I think this is an older USB driver that is included in LaCie software packages. If it doesn't come from Apple, I'd consider it suspicious (I also think it is also very old).

jmPeripheralDevice.kext - do you know what this is?

FUSE for OS X (OSXFUSE) (installed 2014-06-09) -- another ancient software package, is this still working in Mojave?

The LaCie software is still running (and apparently crashing):

2020-01-06 15:18:21 LaCie Desktop Manager.app Crash

Executable: /Applications/LaCie Desktop Manager.app

Details:

dyld2 mode

These are all candidates for causing trouble. I don't know enough about them to say much more than that. Since some are quite old, there is a decent chance some are no longer compatible with Mojave, but you need to find the one that is interfering with mounting your drives.

By the way, are you mounting these drives through a hub of some sort? Try connecting them one at a time, just with a direct connection, to see if that helps.

The potential problem with installing unique drive manufacturer firmware and software is that it must be kept up to date, otherwise an OS update/upgrade can leave one with a drive that won't mount (if you search online, you will that this has in fact happened with multiple drive manufacturers over the years, it is not unique to LaCie). In the worst cases, the drive contents are unrecoverable; at least in your case your data is still there (but can't be accessed via Mojave on your Mac unless booted into Safe Mode).

By the way, the reason I had suggested backing up and reformatting your external drive (and then restoring its files) is that even if you somehow remove the problematic extension(s) from your Mac, the Mac extensions and corresponding drive firmware go hand in hand and "cleaning" one but not the other might or might not enable you to ultimately use that disk.

P.S. You also have other software installed from LaCie. For instance, the intego software assistant you have installed is a LaCie backup and synchronization software and I believe that it may interact with your drive's firmware.

Clean My Mac is questionable software (but I don't think it is causing your external disk problems, although it might).