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Re: Wheezy: Questions about UEFI boot etc.

On Tue, 2013-05-14 at 13:58 -0400, Lennart Sorensen wrote:
> On Tue, May 14, 2013 at 07:25:55PM +0200, Svante Signell wrote:
> > Hi,
> > (Please Cc: me, I'm not subscribed)

> > 3) I plan to split both large disks partitions into a small W8 part and
> > a larger Linux part. Should I do the split in W8 or with the Wheezy CD.
> > The HDD has a rescue partition in the end of the disk, while the SSD has
> > it in the beginning.
> Windows's storage manage will allow you to shrink the disk (although
> only if it doesn't require moving files I believe).  Don't create new
> partitions from windows though, just leave unppartitioned space.

Thanks, the disk shrinking worked.

> > 4) The Wheezy CD has support for UEFI boot. Should I choose that or the
> > traditional boot option when installing grub2? Which are the
> > differences?
> UEFI boot places the boot code in the boot partition and is then
> controlled by the UEFI boot manager as far as I know (I have not tried
> it myself yet).  If UEFI boot works, then it makes sense to use it,
> given future machines are likely to drop lagacy boot support eventually,
> so if you use UEFI now, it would be easy to moee the drive to a new
> machine later (although windows wouldn't like it of course).

The installation went well, thanks. The remaining problem is that W8
boot manager partition on the SSD /dev/sda2 has the boot flag set (not
changeable from Linux, is it from W8?) On the SSD the Linux partition
is /dev/sda5, which I made bootable (also UEFI boot). However, even if
grub is written to /dev/sda no grub menu appears, and only W8 starts up
every time. Additionally, booting from the HDD does not seem to be
possible, at least within W8. How to access the UEFI boot manager, can
it be enabled by a BIOS setting change?


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