sysfs question

Mark Ryden markryde at gmail.com
Thu Sep 11 07:05:43 PDT 2008


In fact, after looking more closely, I see that before that message appears:
Error: unmouting old /sys
ERROR unmounting old /sys: Invalid argument.
forcing unmount of /sys
switchroot...

Any ideas?
Rgs,
Mark


On Thu, Sep 11, 2008 at 5:01 PM, Mark Ryden <markryde at gmail.com> wrote:
> Hello,
> I am trying to follow the
> Linux Containers - Network Namespace configuration instructions from
> http://lxc.sourceforge.net/network/configuration.php
>
>
> I had built a kernel with CONFIG_SYS=n and  CONFIG_NET_NS=y
> and CONFIG_VETH=y , etc, according to the instructions.
>
>
> Now, the CONFIG_SYSFS help text says:
>
> sysfs is currently used by the block subsystem to mount the root
> partition. If sysfs is disabled you must specify the boot device on
> the kernel boot command line via its major and minor numbers. For
> example, "root=03:01" for /dev/hda1.
>
>
> So I added root=08,02 to my kernel boot parameter line and booted.
>
>
> it starts booting, but then gets:
> switchroot: mount failed: No such file or directory.
> Booting has failed.
>
> 8 is the majoror number and 2 is the minor number of /dev/sda2, where I have
> my root partition.
>
> Googling for this found the following, which not helped much:
> http://linux.derkeiler.com/Mailing-Lists/Kernel/2007-11/msg05032.html
>
> Any ideas?
> Regards,
> Mark
>


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