[lxc-users] LXC unpreviliged problem with aufs mounted on nfs

[homalu at 163.com]

Hi,All,
     BTW, my aufs version is aufs4. 
    And it will fail to run: useradd newuser  in the  container's bash with nfs aufs mount. The result is : useradd: failure while writing changes to /etc/shadow

Best Regards

Michael Mao



homalu at 163.com
 
From: homalu at 163.com
Date: 2020-03-21 08:51
To: lxc-users
Subject: LXC unpreviliged problem with aufs mounted on nfs
Hi, All,
    I am working on my project that needs to use aufs as a backend for the LXC. 
    If I set the local branch as the first rw branch for aufs, as: 
        mount -t aufs -o br=/home/{lxcname}/data=rw:/home/base/rootfs=ro none /var/lib/lxc/containers/{lxcname}/rootfs
    the LXC works well in unpreviliged mode, I can modify any file in the container's bash as a root user.
    Buf if I set the nfs branch as the first rw branch, as:
        mount -t aufs -o br=/nfsmountpoint=rw:/home/base/rootfs=ro none /var/lib/lxc/containers/{lxcname}/rootfs
    the LXC can start up in unpreviliged mode, but I can't modify the files which's ownner is not root. It seems not working in unpreviliged mode.
    My nfs version is nfsv4, and LXC is the latest version.

    Please help me , thanks very much.
    
    Best Regards.

Michael Mao


homalu at 163.com
 
From: lxc-users-request
Date: 2020-03-21 07:26
To: lxc-users
Subject: lxc-users Digest, Vol 319, Issue 5
Send lxc-users mailing list submissions to
lxc-users at lists.linuxcontainers.org
 
To subscribe or unsubscribe via the World Wide Web, visit
http://lists.linuxcontainers.org/listinfo/lxc-users
or, via email, send a message with subject or body 'help' to
lxc-users-request at lists.linuxcontainers.org
 
You can reach the person managing the list at
lxc-users-owner at lists.linuxcontainers.org
 
When replying, please edit your Subject line so it is more specific
than "Re: Contents of lxc-users digest..."
 
 
Today's Topics:
 
   1. Quick Question (Ray Jender)
   2. Re: Quick Question (Tomasz Chmielewski)
   3. Re: Quick Question (Ray Jender)
   4. Re: Quick Question (Narcis Garcia)
   5. Re: Quick Question (Saint Michael)
   6. Re: Updating to LXC 3.2.1 fails (Andrey Repin)
   7. Re: Updating to LXC 3.2.1 fails (Saint Michael)
 
 
_______________________________________________
lxc-users mailing list
lxc-users at lists.linuxcontainers.org
http://lists.linuxcontainers.org/listinfo/lxc-users
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.linuxcontainers.org/pipermail/lxc-users/attachments/20200321/6573bd16/attachment.htm>