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@param error: Error to report.
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A fresh ephemeral disk is formatted by Azure and will:
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b.) have 1 partition that is ntfs formatted, or
have 2 partitions with the second partition ntfs formatted.
(larger instances with >2TB ephemeral disk have gpt, and will
have a microsoft reserved partition as part 1. LP: #1686514)
c.) the ntfs partition will have no files other than possibly
'dataloss_warning_readme.txt'
User can indicate that NTFS should never be destroyed by setting
DS_CFG_KEY_PRESERVE_NTFS in dscfg.
If data is found on NTFS, user is warned to set DS_CFG_KEY_PRESERVE_NTFS
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In certain supported ubuntu images, static udev rules or netplan yaml
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additional interfaces which get attached by a customer at some point
after initial boot. Since the Azure datasource can now regenerate
network configuration as metadata reports these new devices, we no longer
want the udev rules or netplan's 90-hotplug-azure.yaml to configure
networking on eth1 or greater as it might collide with cloud-init's
configuration.
Remove the any existing extended network scripts if the datasource is
enabled to write network per-boot.
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