There's no visible functional limitation but the error message is quite annoying: # nice ebuild /usr/local/portage/sys-fs/udev/udev-243_rc1.ebuild clean prepare clean RTNETLINK answers: Operation not supported * systemd-243-rc1.tar.gz SHA256 SHA512 WHIRLPOOL size ;-) ... [ ok ] * udev-243_rc1-revert-systemd-messup.patch.xz SHA256 SHA512 WHIRLPOOL size ;-) ... [ ok ] * checking ebuild checksums ;-) ... [ ok ] * checking auxfile checksums ;-) ... [ ok ] * Determining the location of the kernel source code * Found kernel source directory: * /usr/src/linux * Found sources for kernel version: * 4.19.63 * Checking for suitable kernel configuration options... [ ok ] RTNETLINK answers: Operation not supported >>> Unpacking source... >>> Unpacking systemd-243-rc1.tar.gz to /var/tmp/portage/sys-fs/udev-243_rc1/work >>> Unpacking udev-243_rc1-revert-systemd-messup.patch.xz to /var/tmp/portage/sys-fs/udev-243_rc1/work >>> Source unpacked in /var/tmp/portage/sys-fs/udev-243_rc1/work RTNETLINK answers: Operation not supported >>> Preparing source in /var/tmp/portage/sys-fs/udev-243_rc1/work/systemd-243-rc1 ... * Applying udev-243_rc1-revert-systemd-messup.patch ... [ ok ] >>> Source prepared. RTNETLINK answers: Operation not supported #
Seems like "emerge" is emitting that message as well.
Likely triggerd by this change: https://gitweb.gentoo.org/proj/portage.git/commit/?id=590e32d05fce225dfdab6308555f4a7668378d79 The question is why the "ip address add" commands are failing on your system. Maybe some weird kernel config?
Oh, do you have IPv6 support disabled?
(In reply to Mike Gilbert from comment #3) > Oh, do you have IPv6 support disabled? Yes, this system has no ipv6 support.
Patch sent for review. https://archives.gentoo.org/gentoo-portage-dev/message/b15110917ec6eb1ac0067f6564282b3d
The bug has been referenced in the following commit(s): https://gitweb.gentoo.org/proj/portage.git/commit/?id=3572449357927d40e43c937bc35e26d78eb3b91a commit 3572449357927d40e43c937bc35e26d78eb3b91a Author: Mike Gilbert <floppym@gentoo.org> AuthorDate: 2019-08-02 15:57:39 +0000 Commit: Mike Gilbert <floppym@gentoo.org> CommitDate: 2019-08-02 20:01:10 +0000 process: redirect IPv6 'ip' command output to /dev/null Bug: https://bugs.gentoo.org/691290 Signed-off-by: Mike Gilbert <floppym@gentoo.org> lib/portage/process.py | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-)
Add ability to detect IPv6 support: https://archives.gentoo.org/gentoo-portage-dev/message/d4a78035e226c7bfb161a31682bbd4ad https://github.com/gentoo/portage/pull/442
The bug has been referenced in the following commit(s): https://gitweb.gentoo.org/proj/portage.git/commit/?id=7d05c3e88dd313e3298d74ce7241cbc5b85df54a commit 7d05c3e88dd313e3298d74ce7241cbc5b85df54a Author: Zac Medico <zmedico@gentoo.org> AuthorDate: 2019-08-03 18:40:31 +0000 Commit: Zac Medico <zmedico@gentoo.org> CommitDate: 2019-08-04 17:41:25 +0000 process: add _has_ipv6() function Add _has_ipv6() function and use it in _configure_loopback_interface() to decide whether to add an IPv6 address. Bug: https://bugs.gentoo.org/691290 Reviewed-by: Mike Gilbert <floppym@gentoo.org> Signed-off-by: Zac Medico <zmedico@gentoo.org> lib/portage/process.py | 43 ++++++++++++++++++++++++++++++++++++++++--- 1 file changed, 40 insertions(+), 3 deletions(-)
The bug has been closed via the following commit(s): https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=77aa77e77eeb660551b0706e4611e7ab506fe729 commit 77aa77e77eeb660551b0706e4611e7ab506fe729 Author: Zac Medico <zmedico@gentoo.org> AuthorDate: 2019-08-04 21:15:14 +0000 Commit: Zac Medico <zmedico@gentoo.org> CommitDate: 2019-08-04 21:18:22 +0000 sys-apps/portage: Bump to version 2.3.71 #691290 Fix RTNETLINK answers: Operation not supported messages when IPv6 is disabled Bug: https://bugs.gentoo.org/691278 Closes: https://bugs.gentoo.org/691290 Package-Manager: Portage-2.3.71, Repoman-2.3.16 Signed-off-by: Zac Medico <zmedico@gentoo.org> sys-apps/portage/Manifest | 1 + sys-apps/portage/portage-2.3.71.ebuild | 260 +++++++++++++++++++++++++++++++++ 2 files changed, 261 insertions(+)