On Sat, 08 Mar 2014 08:23:21 +0100
Dan Johansson <d...@dmj.nu> wrote:
> I am considering buying a new Notebook and found that a "LENOVO
> IdeaPad Z510" would fit into my budget and seems quite OK.
> Does anyone here on the list have any experience with the Z510 running
> dual-boot (Win8.x and Gentoo) that would like to share their
> experience?
I have an Ideapad y510p that's dual-booting Win8.x and Gentoo. It
shipped with 8.0 and after I got it dual-booting I upgraded to 8.1.
It's not quite the same model, but I guess it can't hurt to type what I
remember. I didn't take notes, because if I ran into any trouble it
was my plan just to wipe the drive and install only Gentoo. I just
flew by the seat of my pants, so I'm sure this isn't the smartest way
to do things.
My model came with a smallish SSD meant for caching. The SSD is sda and
the HDD is sdb.
Here's the current state of sdb, from gdisk:
Number Start (sector) End (sector) Size Code Name
1 2048 2050047 1000.0 MiB 2700 Basic data partition
2 2050048 2582527 260.0 MiB EF00 EFI system partition
3 2582528 4630527 1000.0 MiB FFFF Basic data partition
4 4630528 4892671 128.0 MiB 0C01 Microsoft reserved part
5 1563490304 1870690303 146.5 GiB 0700 Basic data partition
6 1870690304 1923119103 25.0 GiB 0700 Basic data partition
7 1923119104 1953523711 14.5 GiB 2700 Basic data partition
8 1562466304 1563490303 500.0 MiB 0700
9 4892672 5199871 150.0 MiB 0700
10 5199872 21583871 7.8 GiB 0700
11 21583872 1562466303 734.8 GiB 0700
sdb1-sdb7 existed on the drive when I got it. sdb5 is where Windows is
installed. To make room for Gentoo, I shrunk sdb5 it and slid it to the
end of its space using the GUI partition tool on System Rescue CD,
which I think is gparted. I also used System Rescue CD to install
Gentoo. It's important to boot System Rescue CD in EFI mode, at least
for installing the bootloader.
sdb8 is meant for an installation of System Rescue CD, but I haven't
gotten around to installing it.
sdb9 is /boot, sdb10 is swap, and sdb 11 is Gentoo /
I emerged grub in the chrooted environment. I mounted sdb2
at /boot/efi, installed grub on sdb9 (/boot), and ran grub-mkconfig to
make a config file for grub. The output indicated that it had found
both Gentoo and Windows. The bios (or whatever it's called now)
setup recognized grub as a new EFI-booting option and let me move it to
first priority, and I got to the grub menu.
grub booted Gentoo just fine, but Windows booting failed, something
about not finding partitions or files. Instead of troubleshooting that,
I disabled os probing for grub (GRUB_DISABLE_OS_PROBER=true
in /etc/default/grub) and added Windows via /etc/grub.d/40_custom ,
like so:
menuentry "Windows 8.x" {
set root='(hd1,gpt2)'
chainloader /EFI/microsoft/BOOT/bootmgfw.efi
}
Running grub-mkconfig after that got me a grub.cfg which works to boot
Gentoo and Windows, though I don't get any fancy options for Windows,
such as safe mode.
