Changes between Version 15 and Version 16 of TipAndDoc/Linux/LXC

Timestamp:

Oct 23, 2012 10:12:37 PM (13 years ago)

Author:

mitty

Comment:

--

TipAndDoc/Linux/LXC

@@ -365 +365 @@
 192.168.83.0/24 dev eth1  proto kernel  scope link  src 192.168.83.212
 }}}
+
+ = mount bind =
+ * /var/lib/lxc/>container name>/fstab を用いて、ホストの特定ディレクトリ以下をゲストにbind出来る
+
+ * fstab
+{{{
+/media mnt none bind 0 0
+}}}
+  * host:/media -> guest:/mnt とマウントされる
+  * mntに「/」が'''無い'''ことに注意
+  * mitty@lxc:~$ mount
+{{{
+/dev/disk/by-uuid/XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX on /mnt type ext4 (rw,relatime,errors=remount-ro,user_xattr,barrier=1,data=ordered)
+}}}
+  * mitty@lxc:~$ ls -l /mnt/
+{{{
+total 0
+-rw-r--r-- 1 root root 0 Oct 23 22:01 host-media
+}}}
+
+ 1. mitty@lxc:~$ sudo rm /mnt/host-media
+{{{
+removed `/mnt/host-media'
+}}}
+ 1. mitty@host:~$ ls -l /media/host-media
+{{{
+ls: cannot access /media/host-media: No such file or directory
+}}}
+
+ == read-only bind ==
+ * fstab
+{{{
+/media mnt none bind,ro 0 0
+}}}
+ * mountコマンドの出力結果は「(rw,relatime,errors=remount-ro,user_xattr,barrier=1,data=ordered)」で変わらないが、read-only化される
+ * mitty@lxc:~$ sudo rm /mnt/host-media
+{{{
+rm: cannot remove `/mnt/host-media': Read-only file system
+}}}