Hello, I posted this question in ubuntu mailing list a few days agoa , but could not get a solution; I hope to find assistance here since this is in fact a filesystem question which is not specific to ubuntu. I run Linux 3.5.0-17-generic kernel of in Ubuntu 12.10 I try to use mount namespaces with this Ubunutu. I opened session 1 on one terminal: session 1, terminal #1 mount | grep sda3 gives nothing. unshare -m /bin/bash mount /dev/sda3 /mnt/sda3 mount | grep sda3 shows /dev/sda3 on /mnt/sda3 type ext3 (rw) readlink /proc/self/ns/mnt mnt:[4026532114] I opened session 2 on a second terminal: session 2, terminal #2 In the beginning, mount | grep sda3 gives nothing. after the mount done on the other terminal (#1, session 1) mount | grep sda3 /dev/sda3 on /mnt/sda3 type ext3 (rw) readlink /proc/self/ns/mnt mnt:[4026531840] so this is a different namespace then session 1. And AFAIK I should not have seen ext3 mounted in this namespace. Moreover: 1) I tried cat /proc/self/mountinfo | grep shared on a terminal before making the test , and it did not find anything. 2)According to this post, the result should have been different. And AFAIK, event this post is from 2009, this did not change and still should be so. see: http://karelzak.blogspot.co.il/2009/12/unshare1.html Regards, Kevin -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
