Source error (code 87). The parameter is incorrect.

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siringo
Posts: 4
Joined: Mon Dec 05, 2022 3:46 am

Source error (code 87). The parameter is incorrect.

Post by siringo »

Hello.
Hoping someone can help me out with this.

I'm trying to do a mirror backup of a Virtual Box VM. The backup does all files except the VHD file.

I've created an include filter, but this has made no difference.

This seems to be the most relevant part of the log file:

[5/12/2022 2:23:58 PM] Folders found to backup: 0
[5/12/2022 2:23:58 PM] Files found to backup: 1 (35.04 GB)

[5/12/2022 2:23:58 PM] Preparing shadow copy
[5/12/2022 2:24:23 PM] Shadow copy created for drives C:
[5/12/2022 2:25:23 PM] Warning: Skipping file C:\Users\xxxx\VirtualBox VMs\W10 SUPPT\W10 SUPPT.vhd
Source error (code 87). The parameter is incorrect. (\\?\GLOBALROOT\Device\HarddiskVolumeShadowCopy15\Users\xxxx\VirtualBox VMs\W10 SUPPT\W10 SUPPT.vhd).
Files skipped: 1

Thanks for any help.

siringo
Posts: 4
Joined: Mon Dec 05, 2022 3:46 am

Re: Source error (code 87). The parameter is incorrect.

Post by siringo »

I forgot to mention that the VM is powered off.

Adrian (Softland)
Posts: 1818
Joined: Wed Dec 16, 2009 12:46 pm

Re: Source error (code 87). The parameter is incorrect.

Post by Adrian (Softland) »

Hi,

Do you have the same problem if you uncheck the "Backup open files" option from Backup Properties->Advanced page?
Do you know you can monitor your backups remotely with Backup4all Monitor? You can read more here: https://www.backup4all.com/backup4all-monitor.html

siringo
Posts: 4
Joined: Mon Dec 05, 2022 3:46 am

Re: Source error (code 87). The parameter is incorrect.

Post by siringo »

Yes, I get the same error:

[12/12/2022 11:38:16 AM] Writing to destination file D:\VBOX Backup\C\Users\xxxx\VirtualBox VMs\W10 SUPPT\W10 SUPPT.vhd returned error 87. Will retry after sleeping 60 seconds
[12/12/2022 11:39:16 AM] Warning: Skipping file C:\Users\xxxx\VirtualBox VMs\W10 SUPPT\W10 SUPPT.vhd
Source error (code 87). The parameter is incorrect. (\\?\C:\Users\xxxx\VirtualBox VMs\W10 SUPPT\W10 SUPPT.vhd).
[12/12/2022 11:3

It's backing up everything except the .VHD file which is 35GB in size.

I'm doing a mirror backup as I just want a copy of the VM on my USB disk.

siringo
Posts: 4
Joined: Mon Dec 05, 2022 3:46 am

Re: Source error (code 87). The parameter is incorrect.

Post by siringo »

Fixed.

My USB disk was formatted as FAT32. The VHD filesize was outside the spec's of the FAT32 FS.

Adrian (Softland)
Posts: 1818
Joined: Wed Dec 16, 2009 12:46 pm

Re: Source error (code 87). The parameter is incorrect.

Post by Adrian (Softland) »

Hi,

I'm glad you found the problem.
Do you know you can monitor your backups remotely with Backup4all Monitor? You can read more here: https://www.backup4all.com/backup4all-monitor.html

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