** Description changed: - initramfs' configure_networking function uses ipconfig to configure the - network. - - ipconfig does not support dhcpv6. See: https://bugs.debian.org/cgi- - bin/bugreport.cgi?bug=627164 - - Anyone wanting to netboot in an ipv6-only environment is affected. + initramfs' configure_networking function uses ipconfig to configure the network. + ipconfig does not support dhcpv6. See: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=627164 Related bugs: - * bug 1621615: network not configured when ipv6 netbooted into cloud-init + * bug 1229458: grub2 needed changes + * bug 1621615: network not configured when ipv6 netbooted into cloud-init + + [Impact] + + It is not possible to netboot Ubuntu with a network-based root + filesystem in an ipv6-only environment. Anyone wanting to netboot in an + ipv6-only environment is affected. + + These uploads address this by replacing the one-off klibc dhcp client + (IPv4-only) with the defacto standard isc-dhcp-client, and thereby + provide both ipv6 and ipv4 DHCP configuration. + + [Test Case] + + See Bug 1229458. Configure radvd, dhcpd, and tftpd for your ipv6-only + netbooting world. Pass the boot process an ipv6 address to talk to, and + see it fail to configure the network. + + [Regression Potential] + + 1) This increases the uncompressed initramfs size by approximately 500KB, since isc-dhcp-client is added, but klibc is still needed for some other things, and is therefore present. On systems with a very small /boot partition, this could result in failure to upgrade the initramfs. + 2) In at least some cases, DHCP network configuration shifts from klibc's ipconfig to isc-dhcp-client's dhclient. This should be of minimal risk, as isc-dhcp-client is in very very widespread use. In the event of a regression, network boot would fail, but the prior kernel should still be bootable.
-- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to isc-dhcp in Ubuntu. https://bugs.launchpad.net/bugs/1621507 Title: initramfs-tools configure_networking() fails to dhcp ipv6 addresses Status in MAAS: Confirmed Status in initramfs-tools package in Ubuntu: In Progress Status in isc-dhcp package in Ubuntu: In Progress Status in klibc package in Ubuntu: New Status in open-iscsi package in Ubuntu: Fix Committed Status in initramfs-tools source package in Xenial: New Status in isc-dhcp source package in Xenial: Fix Committed Status in klibc source package in Xenial: New Status in open-iscsi source package in Xenial: New Status in klibc package in Debian: New Bug description: initramfs' configure_networking function uses ipconfig to configure the network. ipconfig does not support dhcpv6. See: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=627164 Related bugs: * bug 1229458: grub2 needed changes * bug 1621615: network not configured when ipv6 netbooted into cloud-init [Impact] It is not possible to netboot Ubuntu with a network-based root filesystem in an ipv6-only environment. Anyone wanting to netboot in an ipv6-only environment is affected. These uploads address this by replacing the one-off klibc dhcp client (IPv4-only) with the defacto standard isc-dhcp-client, and thereby provide both ipv6 and ipv4 DHCP configuration. [Test Case] See Bug 1229458. Configure radvd, dhcpd, and tftpd for your ipv6-only netbooting world. Pass the boot process an ipv6 address to talk to, and see it fail to configure the network. [Regression Potential] 1) This increases the uncompressed initramfs size by approximately 500KB, since isc-dhcp-client is added, but klibc is still needed for some other things, and is therefore present. On systems with a very small /boot partition, this could result in failure to upgrade the initramfs. 2) In at least some cases, DHCP network configuration shifts from klibc's ipconfig to isc-dhcp-client's dhclient. This should be of minimal risk, as isc-dhcp-client is in very very widespread use. In the event of a regression, network boot would fail, but the prior kernel should still be bootable. To manage notifications about this bug go to: https://bugs.launchpad.net/maas/+bug/1621507/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
