Comment 2 for bug 1852206

I think I'm hitting this bug. Here's a pastebin of my cirros instance log: https://paste.ubuntu.com/p/RVTTHk7tSK/

Interesting parts:

Starting network...
udhcpc (v1.23.2) started
Sending discover...
Sending discover...
Sending discover...
[ 175.592033] random: nonblocking pool is initialized
Usage: /sbin/cirros-dhcpc <up|down>
No lease, failing
WARN: /etc/rc3.d/S40-network failed
checking http://169.254.169.254/2009-04-04/instance-id
failed 1/20: up 181.10. request failed
failed 2/20: up 183.11. request failed
failed 3/20: up 185.12. request failed
failed 4/20: up 187.14. request failed
failed 5/20: up 189.15. request failed
failed 6/20: up 191.17. request failed
failed 7/20: up 193.19. request failed
failed 8/20: up 195.20. request failed
failed 9/20: up 197.22. request failed
failed 10/20: up 199.23. request failed
failed 11/20: up 201.24. request failed
failed 12/20: up 203.25. request failed
failed 13/20: up 205.27. request failed
failed 14/20: up 207.29. request failed
failed 15/20: up 209.30. request failed
failed 16/20: up 211.32. request failed
failed 17/20: up 213.34. request failed
failed 18/20: up 215.35. request failed
failed 19/20: up 217.36. request failed
failed 20/20: up 219.36. request failed
failed to read iid from metadata. tried 20
failed to get instance-id of datasource

=== network info ===
if-info: lo,up,127.0.0.1,8,,
if-info: eth0,up,,8,fe80::f816:3eff:fe4e:a6f6/64,
ip-route6:fe80::/64 dev eth0 metric 256
ip-route6:unreachable default dev lo metric -1 error -101
ip-route6:ff00::/8 dev eth0 metric 256
ip-route6:unreachable default dev lo metric -1 error -101

############ debug start ##############
### /etc/init.d/sshd start
Top of dropbear init script
Starting dropbear sshd: failed to get instance-id of datasource
FAIL
### ifconfig -a
eth0 Link encap:Ethernet HWaddr FA:16:3E:4E:A6:F6
          inet6 addr: fe80::f816:3eff:fe4e:a6f6/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
          RX packets:68 errors:0 dropped:0 overruns:0 frame:0
          TX packets:10 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:4886 (4.7 KiB) TX bytes:1332 (1.3 KiB)

lo Link encap:Local Loopback
          inet addr:127.0.0.1 Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING MTU:65536 Metric:1
          RX packets:12 errors:0 dropped:0 overruns:0 frame:0
          TX packets:12 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1
          RX bytes:1020 (1020.0 B) TX bytes:1020 (1020.0 B)