PowerVC 2.3.2 - Hostname is now case sensitive

Question & Answer

Question

Why might PowerVC upgrade to 2.3.2 fail reporting

/fatal: [hostname]: FAILED! => {"changed": false, "msg": "Unable to add or update user: hostname:27017: ("VerificationError(errors=[DNSMismatch(mismatched_id=DNS_ID(hostname=b'hostnameinwrongcase'))])",) (configured timeouts: socketTimeoutMS: 20000.0ms, connectTimeoutMS: 20000.0ms), Timeout: 30s, Topology Description: <TopologyDescription id: 6961251c5d7b5a7617878228, topology_type: Single, servers: [<ServerDescription ('hostname', 27017) server_type: Unknown, rtt: None, error=AutoReconnect('hostname':27017: ("VerificationError(errors=[DNSMismatch(mismatched_id=DNS_ID(hostname=b\'hostname\'))])",) (configured timeouts: socketTimeoutMS: 20000.0ms, connectTimeoutMS: 20000.0ms)')>]>"}

Cause

PowerVC 2.3.1 and later now enforce case sensivity for the certificate used against the resolvable host name.

Answer

Check the existing certifcate

openssl x509 -text -noout -in /etc/pki/db/server/mongodb-server.pem

Example output

X509v3 Subject Alternative Name:

IP Address:x.x.x.x IP Address:x.x.x.x, IP Address:127.0.0.1, DNS:powervcnew.rchland.ibm.com, DNS:powervcnew, DNS:PVCIGS232VIP, DNS:powervcnew

Note the name powervcnew in lower case.

If the hostname is in uppercase..

nmcli general hostname

POWERVCNEW

the upgrade will fail,

The host now must match the certificate to case sensitivity.

nmcli general hostname powervcnew

would set the host to lower case.

reboot the host, then retry the 2.3.2 install.

[{"Type":"MASTER","Line of Business":{"code":"LOB68","label":"Power HW"},"Business Unit":{"code":"BU070","label":"IBM Infrastructure"},"Product":{"code":"SSVSPA","label":"IBM PowerVC for Private Cloud"},"ARM Category":[{"code":"a8m50000000L37RAAS","label":"PowerVC-\u003EUpgrading"}],"ARM Case Number":"TS021162073","Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"1.2.0;1.4.0;1.4.4;2.0.0;2.0.1;2.0.2;2.0.3;2.1.0;2.1.1;2.2.0;2.2.1;2.3.0;2.3.1;2.3.2;2.3.3"}]

Historical Number

TS021162073

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Document Information

Modified date:
04 February 2026

UID

ibm17259621

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