Re: [Vserver] Can't bind-mount host->guest

From: Herbert Poetzl <herbert_at_13thfloor.at>
Date: Sat 29 Oct 2005 - 23:11:24 BST
Message-ID: <20051029221123.GA25528@MAIL.13thfloor.at>

On Sun, Oct 30, 2005 at 02:53:17AM +0900, Jun OKAJIMA wrote:
>
>
> Hello.
>
> I also have same question.
> How to do a mount to vserver namespace?
> I suppose that current vserver gets per-ctx namespace and this requires
> special mount command. If so, what is the command?.
>
> For example, assume the vserver I am using is 100,
>
> [Host]# mount -o bind /home/okajima /vserver/100/home/okajima
> [Host]# ls -la /vserver/100/home/okajima
> [ something come. This is okay.]
> [Vserver]# ls -la /home/okajima
> [ nothing comes This is NOT okay.]
> [Vserver]# mount -o bind /bin /mnt
> [Vserver]$ ls -la /mnt
> [ Nothing comes.]
> [Vserver]$ cat /proc/mounts
> [ /bin->/mnt stuff is not printed.]
> [Host]# zcat /boot/initrd.gz > /vserver/100/diskimage
> [Vserver]# mount -o loop diskimage /mnt
> [Vserver]$ ls -la /mnt
> [ Nothing comes.]
>
>
> Tell me the command to do a bind mount!.

vnamespace --enter <xid> -- mount --bind /host/path /vservers/guest/path

HTH,
Herbert

> --- Okajima, Jun. Tokyo, Japan.
>
>
>
> My vserver is this.
> ------------
> {Okajima@Debian]$ vserver-info
> Versions:
> Kernel: 2.6.12.4-vs2.0
> VS-API: ???
> util-vserver: 0.30.208; Sep 2 2005, 18:43:18
>
> Features:
> CC: gcc, 2.95.4
> CXX: g++, 2.95.4
> CPPFLAGS: ''
> CFLAGS: '-g -O2 -Wall -pedantic -W'
> CXXFLAGS: '-g -O2 -ansi -Wall -pedantic -W'
> build/host: i686-pc-linux-gnu/i686-pc-linux-gnu
> Use dietlibc: no (you have been warned)
> Build C++ programs: no (affected: vbuild, vcheck)
> Build C99 programs: no (affected: vunify, vcopy, vhashify, vdlimit)
> Available APIs: compat,v11,v13,fscompat,net,oldproc,olduts
> ext2fs Source: kernel
> syscall(2) invocation: fast
> vserver(2) syscall#: 273/default
>
> Paths:
> prefix: /usr/local
> sysconf-Directory: ${prefix}/etc
> cfg-Directory: ${prefix}/etc/vservers
> initrd-Directory: $(sysconfdir)/init.d
> pkgstate-Directory: ${prefix}/var/run/vservers
> Kernelheaders: /usr/include
> vserver-Rootdir: /vservers
> _______________________________________________
> Vserver mailing list
> Vserver@list.linux-vserver.org
> http://list.linux-vserver.org/mailman/listinfo/vserver
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