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I have a Centos7 instance on GCE that just stopped accept any connection. (no ping, ssh, http, nothing..) from serial port I can see these errors:

ntpd_intres[336]: host name not found: metadata.google.internal

NetworkManager: /usr/sbin/NetworkManager: symbol lookup error: /lib64/libgudev-1.0.so.0: undefined symbol: g_type_class_adjust_private_offset

systemd: NetworkManager.service: main process exited, code=exited, status=127/n/a

systemd: Failed to start Network Manager.

Bringing up interface eth0:  ERROR    : [/etc/sysconfig/network-scripts/ifup-eth] Device  does not seem to be present, delaying initialization.

/etc/sysconfig/network-scripts/ifup-eth: Device  does not seem to be present, delaying initialization.

Any idea what the issue might be or I can I get in to try and fix this? Any help or guidance will be appreciated

  • This looks like that the libgudev-1.0.so.0 library file is incorrect version, which lacks the function required by NetworkManager. This causes the initialization to fail. Unfortunately I don't know how you can get a correct version of the file. – Tero Kilkanen Oct 11 '16 at 23:09
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You can interact with the instance from the serial port output. If for some reason interacting with the serial port output doesn't resolve your issue, you will need to attach the root disk to another instance where you are able to ssh in order to fix the issue. However, make sure to take a snapshot of the disk before going forward just for backup purposes.

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