[gentoo-commits] proj/gentoo-news:master commit in: 2013/2013-03-29-udev-upgrade/, 2013/2013-01-23-udev-upgrade/

[Samuli Suominen]

commit:     475fa2f8455b91bd0ab48e0c7e22423b8d9b256f
Author:     Samuli Suominen <ssuominen <AT> gentoo <DOT> org>
AuthorDate: Fri Mar 29 14:18:00 2013 +0000
Commit:     Samuli Suominen <ssuominen <AT> gentoo <DOT> org>
CommitDate: Fri Mar 29 14:18:00 2013 +0000
URL:        http://sources.gentoo.org/gitweb/?p=proj/gentoo-news.git;a=commit;h=475fa2f8

Delete the old udev upgrade news item, by combining it with the predictable network interface news. Hopefully this helps someone.

---
 .../2013-01-23-udev-upgrade.en.txt                 |   33 ------
 .../2013-01-23-udev-upgrade.en.txt.asc             |   11 --
 .../2013-03-29-udev-upgrade.en.txt                 |  103 ++++++++++++++++++++
 .../2013-03-29-udev-upgrade.en.txt.asc             |   11 ++
 4 files changed, 114 insertions(+), 44 deletions(-)

diff --git a/2013/2013-01-23-udev-upgrade/2013-01-23-udev-upgrade.en.txt b/2013/2013-01-23-udev-upgrade/2013-01-23-udev-upgrade.en.txt
deleted file mode 100644
index 32f1bf6..0000000
--- a/2013/2013-01-23-udev-upgrade/2013-01-23-udev-upgrade.en.txt
+++ /dev/null
@@ -1,33 +0,0 @@
-Title: Upgrading udev from 171 (or older) to 197 (or newer)
-Author: Samuli Suominen <ssuominen@g.o>
-Content-Type: text/plain
-Posted: 2013-01-23
-Revision: 1
-News-Item-Format: 1.0
-Display-If-Installed: <sys-fs/udev-198
-
-Upgrading udev from 171 (or older) to 197 (or newer) will require special attention:
-
-- Remove udev-postmount from runlevels.
-
-- The need of CONFIG_DEVTMPFS=y in the kernel; need to verify the fstype for
-  possible /dev line in /etc/fstab is devtmpfs (and not, for example, tmpfs)
-
-- The case of predictable network interface names; if the file
-  /etc/udev/rules.d/70-persistent-net.rules is being used for renaming
-  network interface names to already existing names, then you need to
-  read following bug[1] because it's no longer possible. This won't
-  be a problem with the new predictable network interface name scheme[2].
-
-  [1] http://bugs.gentoo.org/453494
-  [2] http://www.freedesktop.org/wiki/Software/systemd/
-      PredictableNetworkInterfaceNames
-
-- The case of separate /usr; if it worked for you with 171 it will continue
-  to work for you with 197 (or newer). We still recommend initramfs with separate
-  /usr mounting capabilities because you might need packages like sys-apps/kbd
-  (keymaps in /usr) or net-wireless/bluez (possible keyboard) in early boot.
-
-And read every message printed by the emerge of udev and udev-init-scripts
-to ensure the system is in order before booting as this news item might
-not be complete.

diff --git a/2013/2013-01-23-udev-upgrade/2013-01-23-udev-upgrade.en.txt.asc b/2013/2013-01-23-udev-upgrade/2013-01-23-udev-upgrade.en.txt.asc
deleted file mode 100644
index 586fd4b..0000000
--- a/2013/2013-01-23-udev-upgrade/2013-01-23-udev-upgrade.en.txt.asc
+++ /dev/null
@@ -1,11 +0,0 @@
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diff --git a/2013/2013-03-29-udev-upgrade/2013-03-29-udev-upgrade.en.txt b/2013/2013-03-29-udev-upgrade/2013-03-29-udev-upgrade.en.txt
new file mode 100644
index 0000000..caa147d
--- /dev/null
+++ b/2013/2013-03-29-udev-upgrade/2013-03-29-udev-upgrade.en.txt
@@ -0,0 +1,103 @@
+Title: udev upgrade from 197 (or older) to 200 (or newer)
+Author: Samuli Suominen <ssuominen@g.o>
+Content-Type: text/plain
+Posted: 2013-03-29
+Revision: 1
+News-Item-Format: 1.0
+Display-If-Installed: <sys-fs/udev-201
+
+This will replace the earlier news item of udev 197 upgrade,
+and describe the predictable networking names to more detail.
+
+If you skip these four phases, either your system won't boot or
+networking will be down, or both.
+Pay attention also to every message printed by emerge of sys-fs/udev
+and sys-fs/udev-init-scripts as this news item may not be complete.
+
+1. Removed init script:
+
+Remove udev-postmount init script from runlevels.
+
+2. DEVTMPFS support, both kernel and fstab:
+
+CONFIG_DEVTMPFS=y kernel option must be enabled (and for that you need
+at least kernel 2.6.32) see gentoo udev guide[1] for menuconfig
+example.
+
+If you have own line for /dev in /etc/fstab, make sure it's also
+fstype 'devtmpfs' and not fstype 'tmpfs' or remove the entire line
+since it's automounted without entry there anyway.
+
+[1] http://www.gentoo.org/doc/en/udev-guide.xml
+
+3. Old networking rules:
+
+If the system still has old network interface renaming rules in
+/etc/udev/rules.d, like 70-persistent-net.rules, those will need
+to be be either modified or removed.
+
+If you choose to modify them, you must use free namespace (like net*
+or internet*) instead of kernel namespace (like eth* or wlan*)
+because in-place renaming has been deprecated, see small
+documentation of it if you like[1]
+
+The file 70-persistent-net.rules, like the 70-persistent-cd.rules
+should be removed, so if you modify, rename the file also to something
+else like 70-my-network.rules to silence the deprecation warning coming
+from end of sys-fs/udev emerge.
+
+This is the old format with reserved namespace:
+
+SUBSYSTEM=="net", ACTION=="add", ATTR{address}=="xx:xx:xx:xx:xx:xx",
+NAME="eth0"
+SUBSYSTEM=="net", ACTION=="add", ATTR{address}=="yy:yy:yy:yy:yy:yy",
+NAME="eth1"
+
+This is the new format with free namespace:
+
+SUBSYSTEM=="net", ACTION=="add", ATTR{address}=="xx:xx:xx:xx:xx:xx",
+NAME="net0"
+SUBSYSTEM=="net", ACTION=="add", ATTR{address}=="yy:yy:yy:yy:yy:yy",
+NAME="net1"
+
+4. The predictable network interface naming:
+
+If /etc/udev/rules.d/80-net-name-slot.rules is a empty file, or if it's
+a symlink to /dev/null, the new names will be disabled and kernel will
+do all the interface naming, and the resulting names will vary by kernel
+and hardware configuration, and may vary by kernel version.
+
+Also, the forementioned old 70-persistent-net.rules might interfere with
+the new enabling of the new predictable interface names!
+
+You can get attributes of your networking interfaces using following
+example command (replace eth0 with your current interface name):
+
+# udevadm test-builtin net_id /sys/class/net/eth0 2> /dev/null
+
+You can copy /lib/udev/rules.d/80-net-name-slot.rules to
+/etc/udev/rules.d and specify what attributes and in which order
+gets used for naming. See upstream wiki[2] for detailed list
+of options.
+
+You can prepare the system this way for the new names before booting,
+like renaming /etc/init.d/net.* symlinks.
+
+The feature can also be completely disabled using net.ifnames=0 kernel
+commandline option.
+
+If you only have one interface card, you don't necessarily have much
+use for this feature as the name almost always stays at eth0, you can
+easily disable it using forementioned methods.
+
+In a normal new installation there are no files in /etc/udev/rules.d
+and if you haven't edited any files you have in there, you should most
+likely backup and delete them all if they don't belong to any packages.
+
+This feature can also replace the functionality of sys-apps/biosdevname,
+but you can still keep using it if you want.
+
+[1] http://www.kernel.org/doc/htmldocs/device-drivers/
+    API-device-rename.html
+[2] http://www.freedesktop.org/wiki/Software/systemd/
+    PredictableNetworkInterfaceNames

diff --git a/2013/2013-03-29-udev-upgrade/2013-03-29-udev-upgrade.en.txt.asc b/2013/2013-03-29-udev-upgrade/2013-03-29-udev-upgrade.en.txt.asc
new file mode 100644
index 0000000..4a870da
--- /dev/null
+++ b/2013/2013-03-29-udev-upgrade/2013-03-29-udev-upgrade.en.txt.asc
@@ -0,0 +1,11 @@
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