Re: [Vserver] unmount nfs with vserver

From: Herbert Poetzl <herbert_at_13thfloor.at>
Date: Fri 14 Oct 2005 - 18:18:27 BST
Message-ID: <20051014171827.GA21537@MAIL.13thfloor.at>

On Fri, Oct 14, 2005 at 10:42:49AM -0600, smagnuson@forzani.com wrote:
> A while back I posted to the list about mounting nfs filesystem into a
> vserver. The only suggestion that I could get to work was adding the
> mount to fstab on host system.

> IE:
> cat /usr/local/etc/vservers/unixdev1/fstab
> none /proc proc defaults 0 0
> none /tmp tmpfs size=64m,mode=1777 0 0
> none /dev/pts devpts gid=5,mode=620 0 0
> # added Sept 14, 2005 - common unix NFS filesystem -sig
> calnfs01.corporate.net:/nfs_unix_data /unix_data nfs hard,intr,nolock 0 0
>
> The one issue I came across was that I could not find a way to umount
> the NFS filesystem
> ssh unixdev1
> sudo umount /unix_data
> umount: /unix_data: must be superuser to umount
> umount: /unix_data: must be superuser to umount

hmm, looks like you are missing one of the
context capabilities for secure mount ...

#define VXC_SECURE_MOUNT 0x00010000
#define VXC_SECURE_REMOUNT 0x00020000
#define VXC_BINARY_MOUNT 0x00040000

> I thought I would be fine with it that way but it turns out it is a
> bigger issue than I thought. Any suggestions on how to umount the NFS
> filesystem?

unmounting on the host should work quite fine ...

best,
Herbert

> I have access to host and vserver.
> thanks
> sig
>
>
>
> sudo ./vserver-testme.sh
> Linux-VServer Test [V0.13] Copyright (C) 2003-2005 H.Poetzl
> chcontext is working.
> chbind is working.
> Linux 2.6.12.4-vs2.0 i686/0.30.208/0.30.208 [Ea] (0)
> VCI: 0002:0001 273 03000016
> ---
> [000]# succeeded.
> [001]# succeeded.
> [011]# succeeded.
> [031]# succeeded.
> [101]# succeeded.
> [102]# succeeded.
> [201]# succeeded.
> [202]# succeeded.
>
> sudo vserver-info
> Versions:
> Kernel: 2.6.12.4-vs2.0
> VS-API: 0x00020001
> util-vserver: 0.30.208; Aug 24 2005, 21:26:20
>
> Features:
> CC: gcc, gcc (GCC) 3.4.3 (CRUX)
> CXX: g++, g++ (GCC) 3.4.3 (CRUX)
> CPPFLAGS: ''
> CFLAGS: '-g -O2 -std=c99 -Wall -pedantic -W -funit-at-a-time'
> CXXFLAGS: '-g -O2 -ansi -Wall -pedantic -W -fmessage-length=0 -
> funit-at-a-time'
> build/host: i686-pc-linux-gnu/i686-pc-linux-gnu
> Use dietlibc: yes
> Build C++ programs: yes
> Build C99 programs: yes
> Available APIs: compat,v11,v13,fscompat,net,oldproc,olduts
> ext2fs Source: e2fsprogs
> syscall(2) invocation: alternative
> vserver(2) syscall#: 273/glibc
>
> 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: /lib/modules/2.6.12.4-vs2.0/build/include
> vserver-Rootdir: /vservers
>
>
> Assumed 'SYSINFO' as no other option given; try '--help' for more information.
>
>
> _______________________________________________
> Vserver mailing list
> Vserver@list.linux-vserver.org
> http://list.linux-vserver.org/mailman/listinfo/vserver
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Received on Fri Oct 14 18:18:44 2005

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