have an Azure VM running Ubuntu 20.04 that was migrated from ASM (cloud service) to ARM and is now not accessible.
This VM was running in a Cloud Service under the Classic model (ASM) and was migrated into an existing ARM network.
Migration was successful and without any errors. VM created by the migration process starts fine but the issue seems to be the Network Interface and cloud-init/Netplan:
Here is the snippet from boot log:
[ 17.259047] cloud-init[841]: Cloud-init v. 21.4-0ubuntu1~20.04.1 running 'init' at Wed, 26 Jan 2022 13:15:05 +0000. Up 17.18 seconds.
[ 17.263428] cloud-init[841]: ci-info: +++++++++++++++++++++++++++Net device info++++++++++++++++++++++++++++
[ 17.266924] cloud-init[841]: ci-info: +--------+-------+-----------+-----------+-------+-------------------+
[ 17.275372] cloud-init[841]: ci-info: | Device | Up | Address | Mask | Scope | Hw-Address |
[ 17.279379] cloud-init[841]: ci-info: +--------+-------+-----------+-----------+-------+-------------------+
[ 17.283570] cloud-init[841]: ci-info: | eth0 | False | . | . | . | 00:22:48:03:c6:ef |
[ 17.287710] cloud-init[841]: ci-info: | lo | True | 127.0.0.1 | 255.0.0.0 | host | . |
[ 17.291555] cloud-init[841]: ci-info: | lo | True | ::1/128 | . | host | . |
[ 17.297514] cloud-init[841]: ci-info: +--------+-------+-----------+-----------+-------+-------------------+
[ 17.301354] cloud-init[841]: ci-info: +++++++++++++++++++Route IPv6 info+++++++++++++++++++
[ 17.304512] cloud-init[841]: ci-info: +-------+-------------+---------+-----------+-------+
[ 17.307952] cloud-init[841]: ci-info: | Route | Destination | Gateway | Interface | Flags |
[ 17.311051] cloud-init[841]: ci-info: +-------+-------------+---------+-----------+-------+
[ 17.314155] cloud-init[841]: ci-info: +-------+-------------+---------+-----------+-------+
[ 17.317365] cloud-init[841]: 2022-01-26 13:15:05,721 - stages.py[WARNING]: Failed to rename devices: [nic not present] Cannot rename mac=00:0d:3a:34:fe:cf to eth0, not available.
[ 17.414216] blk_update_request: I/O error, dev fd0, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 0
It appears to be the same error message as described here:
How can I fix this?
I tried:
-Creating and assigning new Network Interfaces through Azure Portal
-Creating a new VM from the copy of the OS disk
-Redeploying the VM
but no luck. The Network Interface does not get initialized.
The VM starts and I can connect to Serial Console but I don't have password authentication enabled.
I think I can mount the OS disk as a data disk and access it but what would I need to change to allow cloud-init/Netplan to initialize Network Interface correctly in this scenario?
