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DragonFly users List (threaded) for 2011-03
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Re: Unable to boot vkernel: "Permission denied"

From: Antonio Huete Jimenez <ahuete.devel@xxxxxxxxx>
Date: Tue, 15 Mar 2011 10:31:57 +0100

Hi Chirag,

Is the mount point where the vkernel resides mounted as noexec?

Antonio Huete

2011/3/14 Chirag Kantharia <chirag@kantharia.in>:
> Hello,
> I'm trying to setup a VKERNEL environment on my x86_64 desktop.
> Following the excellent article on setting up VKERNEL environment at
> http://www.dragonflybsd.org/docs/newhandbook/vkernel/ I was able to
> setup a root filesystem and compile the VKERNEL64 (all default
> settings) kernel. After setting the sysctl vm.vkernel_enable, trying
> to launch the vkernel, using ./boot/kernel -m 64m, I get
> "./boot/kernel: Permission denied".
> Upon googling, I found
> http://www.mail-archive.com/users@crater.dragonflybsd.org/msg11456.html,
> but the sysctl seems to be set correctly.
> Using ktrace, it looks like the execve failed with "Permission
> denied". The permissions for the ./boot/kernel file seem to be right.
> $ ls -lo ./boot/kernel
> total 23400
> -r-xr-xr-x  1 root  wheel  schg 23930386 Mar 14 20:28 kernel
> What am I missing?
> Thanks,
> --
> Chirag Kantharia

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