Changes between Version 49 and Version 50 of TipAndDoc/Linux/LXC

Timestamp:

Apr 2, 2016 11:49:35 PM (10 years ago)

Author:

mitty

Comment:

--

TipAndDoc/Linux/LXC

@@ -927 +927 @@
 forked to background, child pid 123
 }}}
+
+ * LXCコンテナ内で、udevdが起動しないことが原因の模様
+ * strace -f dhcpcd
+  * コンテナホスト(検証はKVMゲストで行った)
+{{{
+access("/run/udev/control", F_OK) = 0
+
+open("/sys/devices/virtual/net/lo/uevent", O_RDONLY|O_CLOEXEC) = 9
+fstat(9, {st_mode=S_IFREG|0644, st_size=4096, ...}) = 0
+fstat(9, {st_mode=S_IFREG|0644, st_size=4096, ...}) = 0
+read(9, "INTERFACE=lo\nIFINDEX=1\n", 4096) = 23
+read(9, "", 4096)                 = 0
+read(9, "", 4096)                 = 0
+close(9)                          = 0
+open("/run/udev/data/n1", O_RDONLY|O_CLOEXEC) = 9
+
+open("/sys/devices/pci0000:00/0000:00:03.0/virtio0/net/ens3/uevent", O_RDONLY|O_CLOEXEC) = 9
+fstat(9, {st_mode=S_IFREG|0644, st_size=4096, ...}) = 0
+fstat(9, {st_mode=S_IFREG|0644, st_size=4096, ...}) = 0
+read(9, "INTERFACE=ens3\nIFINDEX=2\n", 4096) = 25
+read(9, "", 4096)                 = 0
+read(9, "", 4096)                 = 0
+close(9)                          = 0
+open("/run/udev/data/n2", O_RDONLY|O_CLOEXEC) = 9
+}}}
+  * LXCコンテナ
+{{{
+access("/run/udev/control", F_OK) = -1 ENOENT (No such file or directory)
+
+open("/sys/devices/virtual/net/lo/uevent", O_RDONLY|O_CLOEXEC) = 9
+fstat(9, {st_mode=S_IFREG|0644, st_size=4096, ...}) = 0
+fstat(9, {st_mode=S_IFREG|0644, st_size=4096, ...}) = 0
+read(9, "INTERFACE=lo\nIFINDEX=1\n", 4096) = 23
+read(9, "", 4096)                 = 0
+read(9, "", 4096)                 = 0
+close(9)                          = 0
+open("/run/udev/data/n1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
+
+open("/sys/devices/virtual/net/eth0/uevent", O_RDONLY|O_CLOEXEC) = 9
+fstat(9, {st_mode=S_IFREG|0644, st_size=4096, ...}) = 0
+fstat(9, {st_mode=S_IFREG|0644, st_size=4096, ...}) = 0
+read(9, "INTERFACE=eth0\nIFINDEX=6\n", 4096) = 25
+read(9, "", 4096)                 = 0
+read(9, "", 4096)                 = 0
+close(9)                          = 0
+open("/run/udev/data/n6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
+write(2, "no valid interfaces found", 25) = 25
+write(2, "\n", 1)                 = 1
+
+write(1, "no interfaces have a carrier\n", 29) = 29
+}}}
+   * [root@test /]# systemctl status systemd-udevd
+{{{
+● systemd-udevd.service - udev Kernel Device Manager
+   Loaded: loaded (/usr/lib/systemd/system/systemd-udevd.service; static; vendor preset: disabled)
+   Active: inactive (dead)
+Condition: start condition failed at Sat 2016-04-02 08:30:59 UTC; 5h 9min ago
+           ConditionPathIsReadWrite=/sys was not met
+     Docs: man:systemd-udevd.service(8)
+           man:udev(7)
+}}}
+ * arch:Linux_Containers#Systemd_considerations_.28required.29
+  * 上記を参考にsystemdの設定を行ったが効果なし