Gentoo Forums
Gentoo Forums
Gentoo Forums
Quick Search: in
AMD64 install media fails on UEFI [SOLVED]
View unanswered posts
View posts from last 24 hours

 
Reply to topic    Gentoo Forums Forum Index Installing Gentoo
View previous topic :: View next topic  
Author Message
alootiki
n00b
n00b


Joined: 21 Jun 2014
Posts: 6

PostPosted: Sat Jun 21, 2014 3:39 am    Post subject: AMD64 install media fails on UEFI [SOLVED] Reply with quote

Hello,

I am currently trying to switch my Linux distro from fedora to Gentoo on a 64 bit Toshiba satellite with Windows 8 and uefi. I downloaded and checksummed the minimal installation media, and it seemed fine. Unfortunately, on bootup, my system printed "checking media... failed".
I switched to CSM boot, just to see if it would make a difference. This is a legacy boot mode, so it works even without uefi support. This began to boot into the install cd, but I canceled the bootup.

Oddly, my laptop now boots into Windows instead of the previously working fedora with GRUB. This would be okay, since I was planning to install Gentoo anyway, but I am hesitant to install from CSM mode.

Does Gentoo lack uefi support? Also, can I install from legacy mode (CSM) without terrible things happening?

[Edit] I am posting this from my phone, since my laptop is pretty messed up right now.


Last edited by alootiki on Sun Jun 22, 2014 5:05 am; edited 1 time in total
Back to top
View user's profile Send private message
The Doctor
Moderator
Moderator


Joined: 27 Jul 2010
Posts: 2576

PostPosted: Sat Jun 21, 2014 4:09 am    Post subject: Reply with quote

Quote:
Does Gentoo lack uefi support?

No, only the install media. Use the System Rescue CD instead. Also, look http://wiki.gentoo.org/wiki/UEFI_Dual_boot_with_Windows_7/8 since you will need to deviate from the handbook slightly.
Quote:
Also, can I install from legacy mode (CSM) without terrible things happening?

Well, yes and no. You can't complete the final steps to get a bootable system.
_________________
First things first, but not necessarily in that order.

Apologies if I take a while to respond. I'm currently working on the dematerialization circuit for my blue box.
Back to top
View user's profile Send private message
Logicien
Veteran
Veteran


Joined: 16 Sep 2005
Posts: 1369
Location: Montréal

PostPosted: Sat Jun 21, 2014 7:12 am    Post subject: Reply with quote

I think it would make more sense and easier to boot all your operating systems in the same mode. The way you speak, Fedora boot in Efi mode and Windows in Csm mode.

The Efi mode is well supported by Grub, other boot loaders and Linux. Any media, CD/DVD, USB key, etc, need to support the Efi mode to boot in that mode. A lot support it, but not all.

With Windows installed in Efi mode, things can be tricky to use a Linux boot loader as the default one in that mode.
_________________
Paul
Back to top
View user's profile Send private message
alootiki
n00b
n00b


Joined: 21 Jun 2014
Posts: 6

PostPosted: Sat Jun 21, 2014 2:05 pm    Post subject: Reply with quote

@the doctor: Thank you, I will try that and give feedback as soon as possible.

@logicien: I'm sorry, I was not clear. Windows and fedora both use UEFI. I only switched to CSM to try the Gentoo install media, then I switched back to UEFI mode right afterward. Apparently the minimal install cd does not support UEFI.
Back to top
View user's profile Send private message
alootiki
n00b
n00b


Joined: 21 Jun 2014
Posts: 6

PostPosted: Sun Jun 22, 2014 5:03 am    Post subject: Reply with quote

I completed most of the install, able to resolve most issues, until it was time to configure the bootloader.
Installing rEFInd was not really possible, so I tried to configure GRUB2. Now, on bootup, it fails to find the root block device and I must manually enter the root partition before it can boot. This is probably unrelated, though, so I will keep working on it myself.

Thank you for your help.
Back to top
View user's profile Send private message
DONAHUE
Watchman
Watchman


Joined: 09 Dec 2006
Posts: 7553
Location: Goose Creek SC

PostPosted: Sun Jun 22, 2014 5:13 am    Post subject: Reply with quote

curious, what was the problem with refind install?
_________________
Defund the FCC.
Back to top
View user's profile Send private message
ct85711
Veteran
Veteran


Joined: 27 Sep 2005
Posts: 1696

PostPosted: Sun Jun 22, 2014 7:03 pm    Post subject: Reply with quote

From my experience, on recently setting up a new computer with UEFI; I used the fedora boot cd to startup, switched to command prompt and continue on the gentoo handbook from there. The only big problem I ended up having, was EUFI needs a framebuffer, would not boot up without it setup; and strangely it insisted on wanting the radeonrdmfb one (I have one of those amd apu's, a cpu/graphics card combined) and wouldn't use any others (it starts with the simplefb, then switches over reguardless if i want it to or not).
Back to top
View user's profile Send private message
Display posts from previous:   
Reply to topic    Gentoo Forums Forum Index Installing Gentoo All times are GMT
Page 1 of 1

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum