LinuxQuestions.org
Share your knowledge at the LQ Wiki.
Go Back   LinuxQuestions.org > Forums > Linux Forums > Linux - Hardware
User Name
Password
Linux - Hardware This forum is for Hardware issues.
Having trouble installing a piece of hardware? Want to know if that peripheral is compatible with Linux?

Notices


Reply
  Search this Thread
Old 01-17-2015, 07:59 AM   #1
dad_
Member
 
Registered: Aug 2009
Location: St. Petersburg, Russia
Distribution: Slackware 14.1/current(x86_64/EFI), gentoo, debian, puppy, ubuntu 16.04LTS
Posts: 47

Rep: Reputation: 2
Partition/format advice: SSD + HDD, MBR/GPT mixture, win7 x64 dual-boot


Not sure if it's for hardware forum, but seen similar questions here. I want to install fresh linux distro(not decided which one, probably Ubuntu or Arch, definitely 64 bit) on my new home HW. It has one 120 gb SSD and one 3 Tb HDD with win7 pre-installed on SSD. I want to install with less headache, so I'd like to make minimum changes to the existing setup/partitioning, keep existing windows to dual-boot. What I have so far:

120 Gb SSD: MBR/BIOS windows 7 installed. Small(250 Mb, NTFS) windows "system reserved" partition, then NTFS partition(occupies all the left space, C: drive)
3 TB HDD: GPT. 1 big NTFS partition occupies the whole drive.(F: drive)

My MB is more or less new(ASUS P9X79), so UEFI support is OK.

1. Do I have to bother and convert my windows 7 installation to UEFI(and hence convert SSD from MBR to GPT) to be able to install linux in UEFI mode? Or is it possible to boot linux in UEFI and windows in BIOS(legacy) mode? Or maybe it's OK to just install and use linux in BIOS mode.(EFI gives more simple multi-boot management using /boot/efi partition)

2. What's the best way to re-partition/format for linux: make some relatively small(20-40 Gb?) root JFS(or some other FS?) partition at the end of SSD, and create big EXT4 /home, /var, /tmp on HDD? Or just create one /(root) and put it on HDD? Of course I want to speed-up linux boot by using SSD, but I'll have to move/resize my existing windows partitions on SSD then.
 
Old 01-17-2015, 08:21 AM   #2
Head_on_a_Stick
Senior Member
 
Registered: Dec 2014
Location: London, England
Distribution: Debian stable (and OpenBSD-current)
Posts: 1,187

Rep: Reputation: 285Reputation: 285Reputation: 285
I know it is possible to boot up a "Legacy" GNU/Linux installation from a system booting in EFI-mode; I have done this myself using Lubuntu (EFI-mode) and CrunchBang ("Legacy" mode).

Lubuntu was installed first and after CrunchBang was installed (without a bootloader) I ran `update-grub` from Lubuntu to generate a GRUB menu entry for it.

I don't know if this will work with Windows though.

You may have problems booting an MBR disk in EFI-mode -- this is firmware-dependent, and may not work at all.
 
Old 01-17-2015, 08:34 AM   #3
veerain
Senior Member
 
Registered: Mar 2005
Location: Earth bound to Helios
Distribution: Custom
Posts: 2,524

Rep: Reputation: 319Reputation: 319Reputation: 319Reputation: 319
I think Windows 7 is not EFI aware. I slightly remember that it does supports GPT Partitions.
 
Old 01-17-2015, 09:17 AM   #4
dad_
Member
 
Registered: Aug 2009
Location: St. Petersburg, Russia
Distribution: Slackware 14.1/current(x86_64/EFI), gentoo, debian, puppy, ubuntu 16.04LTS
Posts: 47

Original Poster
Rep: Reputation: 2
veerain
Win7 is EFI aware(and creates EFI FAT32 partition called MSR if installed in EFI mode). But it is EFI bootable only off GPT disk, that's why converting windows 7 to EFI leads to mandatory converting disk to GPT, BTW both conversions are possible without data loss or full re-install. The question is - could I install linux in EFI mode(on the same drive or not) and keep existing Win7 still bootable in BIOS mode? Or I must have both systems only BIOS bootable then. BTW converting linux to EFI boot later seems to be also possible.
 
Old 01-17-2015, 11:46 AM   #5
Head_on_a_Stick
Senior Member
 
Registered: Dec 2014
Location: London, England
Distribution: Debian stable (and OpenBSD-current)
Posts: 1,187

Rep: Reputation: 285Reputation: 285Reputation: 285
Quote:
Originally Posted by dad_ View Post
BTW converting linux to EFI boot later seems to be also possible.
It is -- I have done this with several distributions.
 
1 members found this post helpful.
Old 01-17-2015, 01:25 PM   #6
dad_
Member
 
Registered: Aug 2009
Location: St. Petersburg, Russia
Distribution: Slackware 14.1/current(x86_64/EFI), gentoo, debian, puppy, ubuntu 16.04LTS
Posts: 47

Original Poster
Rep: Reputation: 2
Quote:
Originally Posted by Head_on_a_Stick View Post
It is -- I have done this with several distributions.
OK, thanks. So, it seems the less painful installation option for me is to just put linux on 3 Tb GPT drive, creating the only partition for root at the end. But no fast boot in this case
 
Old 01-17-2015, 01:34 PM   #7
Head_on_a_Stick
Senior Member
 
Registered: Dec 2014
Location: London, England
Distribution: Debian stable (and OpenBSD-current)
Posts: 1,187

Rep: Reputation: 285Reputation: 285Reputation: 285
Quote:
Originally Posted by dad_ View Post
But no fast boot in this case
I wouldn't say that:
Code:
empty@Arch ~ % systemd-analyze 
Startup finished in 3.758s (firmware) + 459ms (loader) + 1.243s (kernel) + 764ms (initrd) + 897ms (userspace) = 7.122s
The firmware is slow on this particular boot -- it's usually ~2seconds...
 
  


Reply

Tags
efi, gpt, install, mbr, partition


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is Off
HTML code is Off



Similar Threads
Thread Thread Starter Forum Replies Last Post
[SOLVED] Unable to successfully install dual-boot - Slack64 14.0/Win7 x64 captkrill Slackware 10 02-12-2013 09:53 AM
[SOLVED] How to repair grub2 in MBR? win7/10.10 dual boot. Nizzok Linux - Newbie 9 01-11-2013 10:56 AM
LXer: Dual-boot Windows 7 and Ubuntu 12.04 on a PC with UEFI board, SSD and HDD LXer Syndicated Linux News 0 10-11-2012 05:20 AM
[SOLVED] Upsize partions on new HDD - Dual Boot - 11.04 ON Win7 - Grub W.Gates Linux - Newbie 6 08-12-2011 06:50 PM

LinuxQuestions.org > Forums > Linux Forums > Linux - Hardware

All times are GMT -5. The time now is 09:43 AM.

Main Menu
Advertisement
My LQ
Write for LQ
LinuxQuestions.org is looking for people interested in writing Editorials, Articles, Reviews, and more. If you'd like to contribute content, let us know.
Main Menu
Syndicate
RSS1  Latest Threads
RSS1  LQ News
Twitter: @linuxquestions
Facebook: linuxquestions Google+: linuxquestions
Open Source Consulting | Domain Registration