From: Luca Ceresoli <luca@lucaceresoli.net>
To: buildroot@busybox.net
Subject: [Buildroot] [RFC 4/6] system: strip the initial /dev for mdev-only /dev management
Date: Tue, 8 Sep 2015 23:28:52 +0200 [thread overview]
Message-ID: <1441747734-18730-5-git-send-email-luca@lucaceresoli.net> (raw)
In-Reply-To: <1441747734-18730-1-git-send-email-luca@lucaceresoli.net>
When using mdev-only /dev management a static device table is needed before
mdev is activated. This is used only for a very short time and then
replaced by the dymanic table managen by mdev, so it should be very
minimalistic.
But the current default, system/device_table_dev.txt, contains way too many
devices that are useless in this contex.
Replace it with a very minimal table.
Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net>
---
system/Config.in | 1 +
system/device_table_dev_mdev_only.txt | 10 ++++++++++
2 files changed, 11 insertions(+)
create mode 100644 system/device_table_dev_mdev_only.txt
diff --git a/system/Config.in b/system/Config.in
index a10de1e..48558b1 100644
--- a/system/Config.in
+++ b/system/Config.in
@@ -147,6 +147,7 @@ config BR2_ROOTFS_DEVICE_TABLE
config BR2_ROOTFS_STATIC_DEVICE_TABLE
string "Path to the device tables"
+ default "system/device_table_dev_mdev_only.txt" if BR2_ROOTFS_DEVICE_CREATION_DYNAMIC_MDEV_ONLY
default "system/device_table_dev.txt"
depends on BR2_ROOTFS_DEVICE_CREATION_STATIC || BR2_ROOTFS_DEVICE_CREATION_DYNAMIC_MDEV_ONLY
help
diff --git a/system/device_table_dev_mdev_only.txt b/system/device_table_dev_mdev_only.txt
new file mode 100644
index 0000000..477aaea
--- /dev/null
+++ b/system/device_table_dev_mdev_only.txt
@@ -0,0 +1,10 @@
+# See package/makedevs/README for details
+#
+# This device table is used only to create device files when a static
+# device configuration is used (entries in /dev are static).
+#
+# <name> <type> <mode> <uid> <gid> <major> <minor> <start> <inc> <count>
+
+# Normal system devices
+/dev/null c 666 0 0 1 3 0 0 -
+/dev/console c 666 0 0 5 1 - - -
--
1.9.1
next prev parent reply other threads:[~2015-09-08 21:28 UTC|newest]
Thread overview: 49+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-09-08 21:28 [Buildroot] [RFC 0/6] mdev-only /dev management (without devtmpfs) Luca Ceresoli
2015-09-08 21:28 ` [Buildroot] [RFC 1/6] Move mounting /sys from fstab to inittab Luca Ceresoli
2015-09-09 9:12 ` Arnout Vandecappelle
2015-09-08 21:28 ` [Buildroot] [RFC 2/6] system: clarify /dev management using devtmpfs + {mdev, eudev} Luca Ceresoli
2015-09-09 9:40 ` Arnout Vandecappelle
2015-09-09 10:53 ` Luca Ceresoli
2015-09-09 10:54 ` Arnout Vandecappelle
2015-09-08 21:28 ` [Buildroot] [RFC 3/6] system: add mdev-only /dev management (without devtmpfs) Luca Ceresoli
2015-09-09 9:21 ` Arnout Vandecappelle
2015-09-09 12:29 ` Luca Ceresoli
2015-09-09 12:32 ` Arnout Vandecappelle
2015-09-09 13:54 ` Thomas Petazzoni
2015-09-14 13:47 ` Luca Ceresoli
2015-09-14 22:23 ` Arnout Vandecappelle
2015-09-15 22:35 ` Luca Ceresoli
2015-09-14 20:53 ` Peter Korsgaard
2015-09-14 21:34 ` Thomas Petazzoni
2015-09-14 21:38 ` Peter Korsgaard
2015-09-15 7:30 ` Thomas Petazzoni
2015-09-15 8:09 ` Peter Korsgaard
2015-09-15 9:41 ` Thomas Petazzoni
2015-09-15 12:01 ` Peter Korsgaard
2015-09-15 12:27 ` Arnout Vandecappelle
2015-09-15 12:32 ` Peter Korsgaard
2015-09-18 16:37 ` Luca Ceresoli
2015-09-15 13:03 ` Thomas Petazzoni
2015-09-15 13:14 ` Peter Korsgaard
2015-09-15 22:34 ` Luca Ceresoli
2015-10-01 9:36 ` Luca Ceresoli
2015-10-01 10:03 ` Peter Korsgaard
2015-09-15 22:31 ` Luca Ceresoli
2015-09-16 7:32 ` Peter Korsgaard
2015-09-18 15:47 ` Luca Ceresoli
2015-09-09 9:34 ` Arnout Vandecappelle
2015-09-09 11:23 ` Thomas Petazzoni
2015-09-09 11:29 ` Thomas Petazzoni
2015-09-09 20:33 ` Arnout Vandecappelle
2015-09-14 16:07 ` Luca Ceresoli
2015-09-14 16:05 ` Luca Ceresoli
2015-09-14 19:34 ` Thomas Petazzoni
2015-09-14 20:19 ` Arnout Vandecappelle
2015-09-15 22:07 ` Luca Ceresoli
2015-09-08 21:28 ` Luca Ceresoli [this message]
2015-09-08 21:28 ` [Buildroot] [RFC 5/6] docs/manual: document "Dynamic using mdev only" /dev management Luca Ceresoli
2015-09-09 10:39 ` Arnout Vandecappelle
2015-09-08 21:28 ` [Buildroot] [RFC 6/6] **** DO NOT COMMIT THIS **** ugly stuff to test mdev-only " Luca Ceresoli
2015-09-09 9:26 ` [Buildroot] [RFC 0/6] mdev-only /dev management (without devtmpfs) Arnout Vandecappelle
2015-09-09 11:30 ` Thomas Petazzoni
2015-09-14 21:03 ` Peter Korsgaard
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1441747734-18730-5-git-send-email-luca@lucaceresoli.net \
--to=luca@lucaceresoli.net \
--cc=buildroot@busybox.net \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.