Arch Linux

hcra

Member

From: Oregon

Registered: 2013-04-20

Posts: 56

[SOLVED] Converted MBR->GPT: Gummiboot installation borked

I am converting an MBR installation to GPT, so I can dual-boot Win+Arch with Gummiboot.

After successfully changing the partitioning, I (1) set the BIOS to boot in EFI only; (2) booted from an arch EFI installation disk; (3) arch-chrooted in, mounted /boot to the Windows EFI partition, and installed Gummiboot. Gummiboot found the Windows EFI partition and installed correctly, I believe. I next followed the Beginners Guide and created the arch.conf and loader.conf files in the EFI partition.

When I try to boot into Arch, the bootloader reports

/vmlinuz-linux not found

or something similar.

I've clearly overlooked something along the way, but I'm not sure what. Thanks in advance for any suggestions!!

Last edited by hcra (2014-11-14 22:23:07)

Head_on_a_Stick

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From: London

Registered: 2014-02-20

Posts: 7,771

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Re: [SOLVED] Converted MBR->GPT: Gummiboot installation borked

Please post your arch.conf & loader.conf and the output of:

lsblk -f

EDIT: Also, how did you go about converting your MBR disk to a GPT format?

Last edited by Head_on_a_Stick (2014-11-14 17:09:52)

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hcra

Member

From: Oregon

Registered: 2013-04-20

Posts: 56

Re: [SOLVED] Converted MBR->GPT: Gummiboot installation borked

Please post your arch.conf & loader.conf

#cat arch.conf
title          Arch Linux
linux          /vmlinuz-linux
initrd         /initramfs-linux.img
options        root=/dev/sdc1 rw

# cat loader.conf
default  arch
timeout  5

and the output of:

lsblk -f

 sda
sda1 ntfs Recovery UUID#
sda2 vfat UUID#
sda3
sda4 ntfs UUID#
sda5 ntfs UUID#

sdc
sdc1 ext4 UUID#
sdc2 ext 4 UUID#

How did you go about converting your MBR disk to a GPT format?

I first used the Gparted (live CD) to shrink the initial and ending partitions of sdc slightly. (This may have been unnecessary.) Then, I used Rod Smith's gdisk, following the Wiki.

Head_on_a_Stick

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From: London

Registered: 2014-02-20

Posts: 7,771

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Re: [SOLVED] Converted MBR->GPT: Gummiboot installation borked

Why have you not posted the full output of lsblk?
I wanted to see your mountpoints (fnar!)...

Is sda also a GPT disk?

Have you tried using UUIDs (or PARTUUIDs) to identify your root filesystem in arch.conf?

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hcra

Member

From: Oregon

Registered: 2013-04-20

Posts: 56

Re: [SOLVED] Converted MBR->GPT: Gummiboot installation borked

Why have you not posted the full output of lsblk?

I'm sorry, but I'm not sure how to post the full output other than type it by hand.

Is sda also a GPT disk?

Yes, I believe so, since Windows is booting UEFI with Gummiboot.

Have you tried using UUIDs (or PARTUUIDs) to identify your root filesystem in arch.conf?

I just tried, doubling checking the UUIDs, and it also failed. Same error output.

Head_on_a_Stick

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From: London

Registered: 2014-02-20

Posts: 7,771

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Re: [SOLVED] Converted MBR->GPT: Gummiboot installation borked

Did you copy (recursively) the contents of /boot to the partition on sda2?

Gummiboot can only boot kernels in the same partition.

What is the output of:

ls /boot

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hcra

Member

From: Oregon

Registered: 2013-04-20

Posts: 56

Re: [SOLVED] Converted MBR->GPT: Gummiboot installation borked

Did you copy (recursively) the contents of /boot to the partition on sda2?

No.
So, I did just that, and now the boot fails reporting:

Triggering uevents...
Waiting 10 second for device /dev/disk/by-partuuid/c25...cd46c ...
ERROR: device 'PARTUUID=c25b...cd46c' not found. Skipping fsck.  
ERROR: Unable to find root device 'PARTUUID=c25... cd46c

Stumbling along ... thanks so much for your willingness to help!

Head_on_a_Stick

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From: London

Registered: 2014-02-20

Posts: 7,771

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Re: [SOLVED] Converted MBR->GPT: Gummiboot installation borked

Sounds like whatever PARTUUID you entered in arch.conf was the wrong one.

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hcra

Member

From: Oregon

Registered: 2013-04-20

Posts: 56

Re: [SOLVED] Converted MBR->GPT: Gummiboot installation borked

Please see this image at imgur. Looks okay, as far as I can tell. Thanks again!!

Head_on_a_Stick

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From: London

Registered: 2014-02-20

Posts: 7,771

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Re: [SOLVED] Converted MBR->GPT: Gummiboot installation borked

That image shows UUIDs -- these are different to PARTUUIDs (PARTition Universally Unique IDentifiers).

Change "root=PARTUUID" to "root=UUID" in arch.conf

Last edited by Head_on_a_Stick (2014-11-14 22:16:06)

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hcra

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From: Oregon

Registered: 2013-04-20

Posts: 56

Re: [SOLVED] Converted MBR->GPT: Gummiboot installation borked

Genius! Thanks so much Head_on_a_Stick. Solved, straightaway.

Head_on_a_Stick

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From: London

Registered: 2014-02-20

Posts: 7,771

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Re: [SOLVED] Converted MBR->GPT: Gummiboot installation borked

Ha!

Glad you got it sorted!

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TheSaint

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From: my computer

Registered: 2007-08-19

Posts: 1,523

Re: [SOLVED] Converted MBR->GPT: Gummiboot installation borked

I suggest to label the partitions, which are much more easy to handle and remember.
That's why phones got letter on their keys

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do it good first, it will be faster than do it twice the saint