[202205] [sonic_installer] use /etc/resolv.conf from the host when migrating packages (#2573) #2575
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What I did
SONiC package migration has been failing due to the lack of DNS configuration for registries domain names.
I used /etc/resolv.conf from host OS when migrating.
Based on PR #2573
How I did it
Copy /etc/resolv.conf into new image filesystem during migration, then, restore it back.
How to verify it
Run sonic-installer install.
Previous command output (if the output of a command-line utility has changed)
New command output (if the output of a command-line utility has changed)