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Unable to connect to guest OS for guest processing. Cannot find Linux guest credentials

Moose
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  • Moose
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Has anyone experienced this issue after performing the Veeam v12.1 upgrade?

 Unable to connect to guest OS for guest processing. Cannot find Linux guest credentials.  Our Veeam environment is configured to utilize vSphere backup tags (which includes both Windows and Linux VMs).

After the upgrade to v12.1 our backup jobs that included Linux VMs didn’t backup.
We have opened up a support call, and in the meantime have a work around.  If we would specify each Linux VM along with the backup tags within the backup job, the Linux VM does backup.

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Best answer by Chris.Childerhose 10 January 2024, 20:45

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PJ

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coolsport00
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That’s a first I’ve heard of this. No one has posted on here, that I’ve seen, as of yet either. Maybe another Community member has?

If you have a case, may be try posting on the Forums as well, and include case #, to see what PMs have to say...or confirm a bug?

Shane Williford - Veeam VMCA/VMCE | Veeam Legend | VUG Leader | VCP-DCV | Twitter: @coolsport00
Moose
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Case #07083882   Cannot find Linux guest credentials. 

 

PJ
coolsport00
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Hi @Moose - generally...if you post on the Forums, they require the # over there. We don’t here 😊

Shane Williford - Veeam VMCA/VMCE | Veeam Legend | VUG Leader | VCP-DCV | Twitter: @coolsport00
CarySun
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@Moose Please review the hosts and servers from Inventory and Backup Infrastructure to ensure no error or warning after the upgrade to 12.1.

Veeam Vanguard | Veeam Legend | VMCE 2024 | Microsoft MVP | Cisco Insider Champion | CISCO CCIE #4531 | Web Site - carysun.com | Blog Site - gooddealmart.com | Blog Site - checkyourlogs.net | X: @SifuSun | LinkedIn: https://www.linkedin.com/in/sifusun/ | Amazon Author: https://Amazon.com/author/carysun
Chris.Childerhose
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@Moose Please review the hosts and servers from Inventory and Backup Infrastructure to ensure no error or warning after the upgrade to 12.1.

I would check this and also check the stored credentials for Linux machines if you are doing the App Aware processing on them.  The other option if you don’t need application-aware then disable it for those systems in your jobs.

Chris Childerhose - VMCA2022 | VMCE2023 | Veeam Vanguard 7* | Veeam Legend 3* | vExpert 5* | VCAP-DCV/VCP-DCV | Object First Ace | Cisco Champion | Twitter: @cchilderhose | Blog Site – https://just-virtualization.tech
coolsport00
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Chris makes a good point. I haven’t used guest processing in yrs...not even for DB servers (we do in-app backups within the guest OS). Always caused more headaches than it’s worth...for me, at least. 

Shane Williford - Veeam VMCA/VMCE | Veeam Legend | VUG Leader | VCP-DCV | Twitter: @coolsport00
Moose
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We have discovered that combination backup tags seem to be an issue, because if we separate into individual backup tags.  The backup is working.

 

 

PJ
coolsport00
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Interesting behavior 

But, it was working in v12 & earlier I presume? I wonder what developmental change they made to cause this issue to occur? 🤔

Shane Williford - Veeam VMCA/VMCE | Veeam Legend | VUG Leader | VCP-DCV | Twitter: @coolsport00
Moose
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yes, it was working on V12

 

PJ
Chris.Childerhose
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We have discovered that combination backup tags seem to be an issue, because if we separate into individual backup tags.  The backup is working.

 

 

That is interesting as the tag behavior from v12 to 12.1 should not have changed but maybe it did?  Glad to hear you worked it out.

Chris Childerhose - VMCA2022 | VMCE2023 | Veeam Vanguard 7* | Veeam Legend 3* | vExpert 5* | VCAP-DCV/VCP-DCV | Object First Ace | Cisco Champion | Twitter: @cchilderhose | Blog Site – https://just-virtualization.tech

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