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From: "James Lim" <jameslpin@pacific.net.sg>
To: <mike@hyperreal.org>, <dima@unixfreak.org>
Cc: <freebsd-questions@FreeBSD.ORG>
References: <20001126015843.9153.qmail@hyperreal.org>
Subject: Re: can't chflags/mv current kernel
Date: Sun, 26 Nov 2000 10:03:54 +0800
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Hi there,

            Sorry dude, i have fergotten to advice u to edit rc.conf =/
apologies

Regards,
James Lim

----- Original Message -----
From: <mike@hyperreal.org>
To: <dima@unixfreak.org>
Cc: <freebsd-questions@FreeBSD.ORG>
Sent: Sunday, November 26, 2000 9:58 AM
Subject: Re: can't chflags/mv current kernel


> Dima Dorfman wrote:
> > securelevel >= 1.  See init(8) for details.
>
> Ah, ok, thanks.
> This definitely should go in the handbook.
> But, following the advice of James Lim,
>
> # sysctl -w kern.securelevel=-1
> kern.securelevel: 2
> sysctl: kern.securelevel: Operation not permitted
>
> Seems like changing it after the boot is not an option.
>
> > How did you get to single user mode?  Did you get there by booting the
> > kernel with the -s flag, or by using shutdown?  In case of the former,
> > it should work.  In case of the latter, you should try the former.
>
> The latter. Trying the former, I get a different failure:
>
> # sysctl -w kern.securelevel=-1
> kern.securelevel: -1 -> -1
> # make install
> chflags noschg /kernel
> chflags: /kernel: Read-only file system
> *** Error code 1 (ignored)
> mv /kernel /kernel.old
> mv: rename /kernel to /kernel.old: Read-only file system
> *** Error code 1
>
> > For the sake of the archives, setting kern_securelevel to -1 in
> > /etc/rc.conf should also work if you can't get to single user mode (no
> > console access).  Just remember to change it back when you're done.
>
> OK, I rebooted normally, edited rc.conf, rebooted again (shutdown -r now),
> and the 'make install' proceeded without error. Edited rc.conf again,
> rebooted, and all is well. Thank you for the prompt advice!
>
> -M.
>
>
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