** Tags added: rls-kk-incoming
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https://bugs.launchpad.net/bugs/1937110
Title:
dhcp option 121 & 249
Status in subiquity:
New
Status in busybox package in Ubuntu:
Confirmed
Bug description:
Hello,
I'm running into issues with subiquity on a cloud provider. The cloud
provider is using an on-link L3 gateway.
His DHCP response looks like this:
OPTION: 53 ( 1) DHCP message type 5 (DHCPACK)
OPTION: 54 ( 4) Server identifier 172.31.1.1
OPTION: 51 ( 4) IP address leasetime 86400 (24h)
OPTION: 1 ( 4) Subnet mask 255.255.255.255
OPTION: 3 ( 4) Routers 172.31.1.1
OPTION: 6 ( 12) DNS server ....
OPTION: 121 ( 14) Classless Static Route 20ac1f0101000000 .......
0000ac1f0101 ......
OPTION: 249 ( 14) MSFT - Classless route 20ac1f0101000000 .......
0000ac1f0101 ......
Im booting the subiquity process with an patched ipxe
(https://github.com/ipxe/ipxe/pull/104) like this:
#!ipxe
kernel .../vmlinuz initrd=initrd root=/dev/ram0 ramdisk_size=1500000 ip=dhcp
url=https://cdimage.ubuntu.com/ubuntu-server/focal/daily-live/current/focal-live-server-amd64.iso
autoinstall ds=nocloud-net;s=.../...-ad-78/ cloud-config-url=/dev/null
initrd .../initrd
boot
initrd/vmlinuz is extracted right out of focal-live-server-amd64.iso
Sadly subiquity is stuck with a broken network (because of missing
dhcp option 121/249 support). It happens when its running the /init
from the kernel right after kernel is booted, i guess even before the
subiquity is started(?).
After further debugging, it looks like the provided kernel 5.4.80 #90
Ubuntu, is using busybox 1.30.1-4ubuntu~6.3 which includes isc-
dhclient-4.4.1 which is lacking the given options.
Would be awesome if this could be fixed.. maybe just a simple busybox compile
option?
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