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#1 2012-06-26 13:10:24

San2ban
Banned
From: Bangalore, India
Registered: 2010-02-09
Posts: 258

[solved] MBR to GPT, GRUB2, load Funtoo

                                  cgdisk 0.8.5

                              Disk Drive: /dev/sda
                           Size: 312315562, 148.9 GiB

Part. #     Size        Partition Type            Partition Name
----------------------------------------------------------------
            14.5 KiB    free space
   1        235.3 MiB   Linux filesystem          Linux filesystem
   2        972.7 MiB   Linux swap                Linux swap
   3        147.7 GiB   Linux filesystem          Linux filesystem
            5.8 MiB     free space

Dear Archers
I want to convertmy existing MBR to GPT, and then load GRUB2 for installing Funtoo on this same HDD. ArchWiki says leave 2MiB for EF02 GPT-BIOS partition, before /boot (/dev/sda1). But, I have only 14.5KB in this position. But I have 5MB in the end. Can I use this 5MB for EFI02 partition?
It is said I should do this before I convert MBR to GPT. I have not yet converted MBR to GPT.  Pl. advise. If there are other pitfalls in this subject matter (including Funtoo install) advice appreciated

Last edited by San2ban (2012-06-27 07:57:58)


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#2 2012-06-26 13:33:02

Šaran
Member
From: Bosnia
Registered: 2011-09-03
Posts: 407

Re: [solved] MBR to GPT, GRUB2, load Funtoo

Just resize sda1 by 2 MB. You can do it with gparted live. New partition should be left unformated with bios_grub flag.

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#3 2012-06-27 07:57:32

San2ban
Banned
From: Bangalore, India
Registered: 2010-02-09
Posts: 258

Re: [solved] MBR to GPT, GRUB2, load Funtoo

Went ahead (since no further inputs from any body), converted the last 5.8MB on the disk to bios-boot partition (before converting MBR to GPT), without file system, label EF082 (bios-boot partition)
Later, installed GRUB2-bios, in the 440 byte boot code region of MBR, as recommended by Archwiki. Now, system is with GPT partition (BIOS, not UEFI), boot loader is GRUB2. Now, free from the limitation of only 4 primary partition (with MBR)


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