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Bug 1811560 - UEFI HTTP boot over IPv6 does not work
Summary: UEFI HTTP boot over IPv6 does not work
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Red Hat Enterprise Linux 8
Classification: Red Hat
Component: grub2
Version: 8.3
Hardware: Unspecified
OS: Unspecified
unspecified
unspecified
Target Milestone: rc
: 8.0
Assignee: Javier Martinez Canillas
QA Contact: Release Test Team
URL:
Whiteboard:
Depends On:
Blocks: 1825061
TreeView+ depends on / blocked
 
Reported: 2020-03-09 09:12 UTC by Lukas Zapletal
Modified: 2020-11-04 01:54 UTC (History)
3 users (show)

Fixed In Version: grub2-2.02-82.el8
Doc Type: If docs needed, set a value
Doc Text:
Clone Of:
Environment:
Last Closed: 2020-11-04 01:53:54 UTC
Type: Bug
Target Upstream Version:
Embargoed:
pm-rhel: mirror+

Attachments (Terms of Use)

Description Lukas Zapletal 2020-03-09 09:12:08 UTC 
This bug was initially created as a copy of Bug #1732765

I am copying this bug because:

Need to backport this into RHEL 8, Satellite 6 feature HTTP UEFI IPv6 provisining will be verified and tested workflow going forward. Thank you.

Hello,

I am trying to configure UEFI HTTP Boot over IPv6 with Grub2. Here is my dhcp config:

option dhcp6.bootfile-url code 59 = string;
option dhcp6.vendor-class code 16 = {integer 32, integer 16, string};

subnet6 2001:db8:f00f:cafe::/64 {
 range6 2001:db8:f00f:cafe::42:10 2001:db8:f00f:cafe::42:99;
 option dhcp6.bootfile-url "http://[2001:db8:f00f:cafe::1]/httpboot/grub2/grubx64.efi";
 option dhcp6.name-servers 2001:db8:f00f:cafe::1;
 option dhcp6.vendor-class 0 10 "HTTPClient";
}

Grub2 loads fine, loads configuration which is:

set default=0
set timeout=10
menuentry 'Kickstart default PXEGrub2' {
  linuxefi boot/centos-local-proxy-NpAPvFVIy69k-vmlinuz ks=http://sat66.nat.lan/unattended/provision?token=d716ee59-fabf-40f6-8b21-9a6a14c47c2e  network ksdevice=bootif ks.device=bootif BOOTIF=00-00-c0-3a-d1-01-8f kssendmac ks.sendmac inst.ks.sendmac BOOTIF=01-$net_default_mac
  initrdefi boot/centos-local-proxy-NpAPvFVIy69k-initrd.img
}

However after the timeout there is a network error. Depending on bootfile-url it's different:

For http://[2001:db8:f00f:cafe::1] I get: unrecognised network address '2001:db8:f00f:cafe::1', unsupported uefi http status code 0x11, fail to receive a reponse! status=104

For http://ipv6_only_hostname I get: unrecognised network address 'ipv6_only_hostname'

Is IPv6 supported in this scenario? Thanks.
Comment 2 Petr Janda 2020-03-26 08:57:23 UTC 
Reproducing steps are the same as for Bug #1732765
Comment 8 errata-xmlrpc 2020-11-04 01:53:54 UTC 
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory (grub2 bug fix and enhancement update), and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHBA-2020:4513
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