Date: Mon, 11 Nov 2013 16:22:20 -0800 From: Julian Elischer <julian@freebsd.org> To: Nathan Whitehorn <nwhitehorn@freebsd.org>, freebsd-current@freebsd.org Subject: Re: Default MBR boot "manager" Message-ID: <528174BC.60001@freebsd.org> In-Reply-To: <52814CD8.5020708@freebsd.org> References: <33391A36-2E7A-473B-87E0-88BDE1AC97D1@fisglobal.com> <52814CD8.5020708@freebsd.org>
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On 11/11/13, 1:32 PM, Nathan Whitehorn wrote:
> On 11/11/13 15:19, Teske, Devin wrote:
>> Topic: Lenovo Laptops and bsdinstall zfsboot with MBR layout...
>>
>> Should we do the quick patch to change the default
>> from /boot/boot0 to /boot/mbr:
>>
>> Index: zfsboot
>> ===================================================================
>> --- zfsboot (revision 258016)
>> +++ zfsboot (working copy)
>> @@ -764,7 +764,7 @@ zfs_create_diskpart()
>> #
>> f_eval_catch $funcname gpart "$GPART_CREATE" mbr
>> \$disk ||
>> return $FAILURE
>> - f_eval_catch $funcname gpart "$GPART_BOOTCODE"
>> /boot/boot0 \
>> + f_eval_catch $funcname gpart "$GPART_BOOTCODE"
>> /boot/mbr \
>> \$disk || return $FAILURE
>>
>> #
>>
>> That would fix things for Lenovo laptops for the next
>> release until I finish up the bootcode selection menu.
>> I'd like to take my time in making sure Allan and I design
>> a worthy bootcode selection menu.
>
> This patch looks good (I don't remember why it was boot0 in the
> first place). I think gpart automatically installs something like
> /boot/mbr by default, so I'd be interested to know if making the
> diff purely negative still works.
>
> On another note, I think we should move away from a selector. Right
> now, we have three kinds of boot code:
> 1. ZFS boot code
> 2. UFS boot code
> 3. boot0
you forget network booting.
>
> Unifying 1 and 2 would help a lot -- I don't know of any reason we
> need both except for tradition. #3 is probably best done as a
> post-install config step ("Install FreeBSD boot manager" or
> something), which also means it works for UFS systems.
> -Nathan
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