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Date:      Thu, 17 Nov 2016 18:11:05 -0500
From:      Baho Utot <baho-utot@columbus.rr.com>
To:        freebsd-questions@freebsd.org
Subject:   Re: Yet another boot question
Message-ID:  <c5e62c04-d880-02ec-a394-90586d535dc5@columbus.rr.com>
In-Reply-To: <alpine.BSF.2.20.1611171626160.13016@fledge.watson.org>
References:  <alpine.BSF.2.20.1611171626160.13016@fledge.watson.org>

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On 11/17/16 17:45, doug wrote:
> My is simpler than booting the "monster"
>
> I had to replace my workstation. It was supposed to come with windows 
> 7 that I was going to toss. As it came with 10 I shrunk the windows 
> partition and installed 10.3. Getting:
>
> =>        63  3907029105    ada0  MBR  (1.8T)
>           63        1985        - free -  (993K)
>         2048      204800       1  ntfs  (100M)
>       206848   833284096       2  ntfs  (397G)
>    833490944           1        - free -  (512B)
>    833490945  3070230471       4  freebsd  [active]  (1.4T)
>   3903721416     1769528        - free -  (864M)
>   3905490944     1536000       3  !39  (750M)
>   3907026944        2224        - free -  (1.1M)
>
> =>         0  3070230471  ada0s4  BSD  (1.4T)
>            0     6291456       1  freebsd-ufs  (3.0G)
>      6291456     8388608       2  freebsd-swap  (4.0G)
>     14680064    41943040       4  freebsd-ufs  (20G)
>     56623104    83886080       5  freebsd-ufs  (40G)
>    140509184  2929721286       6  freebsd-ufs  (1.4T)
>   3070230470           1        - free -  (512B)
>
> The FBSD install overwrote the MBR to boot the BSD partition. Can I 
> [easily] get a duel boot out of this. Or, is there a better way to 
> install FBSD as not to wipe out what's there?
> _______________________________________________

Yes, that is what I have now before trying zfs raidz-1

I have Win7 and FreeBSD,  I don't know if win10 boots the same as Win7 
so  can try this it you want to

Boot FreeBSD then as root:

boot0cfg -B ad0

That will overwrite the boot loader with boot0 then when you reboot you 
will get a boot menu that has
F1 Win
F2 Win
F3 FreeBSD

You can then choose which one you want to boot




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