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Reinderien
Asked: 2016-07-28 10:42:14 +0800 CST

EFI boot from USB - drops to initramfs

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I have attempted to follow this guide:

https://help.ubuntu.com/community/Installation/UEFI-and-BIOS/stable-alternative

It seems to have gotten partway through the boot process.

From OSX, the list of partitions on the boot device (I apologise for some serious potatocam):

partition list

Grub options after pressing 'edit' are here:

grub options

Initramfs prompt appears as follows:

enter image description here

The walkthrough suggests removing the internal hard disk of the laptop to do this procedure, but that is NOT an option for me. I only need to boot into this environment once, to perform an installation.

Further info - using OSX's diskinfo, I see the following UUIDs:

/dev/disk2s1 - C972F4B3-83FF-4E9F-A9CC-A7F0FDF6477D
/dev/disk2s2 - 44980794-0CC8-48FF-A1A4-902C6A781B7F
/dev/disk2s3 - BBFAD016-C4C4-4A70-9A44-4ED03CFB27B7
/dev/disk2s4 - D71A4E6A-014F-4F24-B54B-B3E70C5E753B

I think the largest partition, /dev/disk2s3, should probably be considered root? But changing the grub config to BBFA... does not help - the kernel cannot find that device. Also, it doesn't even load any partitions in /dev/sdb, only /dev/sdb itself.

boot

1 Answers

  1. I found a way around this, though not really a direct fix. I ended up downloading the regular Ubuntu x64 installer, and using https://sevenbits.github.io/Mac-Linux-USB-Loader/ ; then it was smooth sailing.

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