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Questions[startup-disk-creator](ubuntu)

Martin Hope
Alexey
Asked: 2018-07-29 02:53:16 +0800 CST
  • 4

I created a startup USB drive with Startup Disk Creator from 18.04.1 image and successfully used it to install Ubuntu. Then I decided to inspect it with GPT fdisk, and gdisk reported "invalid main GPT header" and other issues:

§ sudo gdisk /dev/sdc
[sudo] password for alexey: 
GPT fdisk (gdisk) version 1.0.3

Caution: invalid main GPT header, but valid backup; regenerating main header
from backup!

Caution! After loading partitions, the CRC doesn't check out!
Warning! Main partition table CRC mismatch! Loaded backup partition table
instead of main partition table!

Warning! One or more CRCs don't match. You should repair the disk!

Partition table scan:
  MBR: MBR only
  BSD: not present
  APM: not present
  GPT: damaged

Found valid MBR and corrupt GPT. Which do you want to use? (Using the
GPT MAY permit recovery of GPT data.)
 1 - MBR
 2 - GPT
 3 - Create blank GPT

Your answer: ^C

Is this expected? Is this a bug in "Startup Disk Creator" or something else? Is it safe to install Ubuntu from a drive where "CRCs don't match"?

gpt gdisk startup-disk-creator startup-disk
Martin Hope
Richardgw
Asked: 2018-05-20 22:07:27 +0800 CST
  • 4

I would be very grateful if someone could help to create a bootable USB stick that really works. Instead of booting I get the following error message:

Gfx.c32: not a COM32R image
boot:

I'm using the built-in Startup Disk Creator in Ubuntu 14.04. As the USB device I'm using an empty 8GB USB flash drive. The ISO image that I'm trying to install is Ubuntu 18.04.

I followed the instructions of the Startup Disk Creator app. It automatically chose the image and the USB device. After some time I got the message Installation complete.

The problem is that when I set the USB device as the first bootable device I get the message indicated above at the beginning of this post.

PS: I have looked up the answers to an equivalent question, but they didn't work for me. Is there a new version of Startup Disk Creator which has fixed bug 1325801?

live-usb startup-disk-creator
Martin Hope
eDeviser
Asked: 2018-03-29 03:09:53 +0800 CST
  • 3

I am starting the ubuntu start up disk creator (usb-creator-gtk) on Ubuntu 17.10 (4.13.0-37-generic) and getting this dialog:

enter image description here

I already reinstalled it by:

sudo apt remove usb-creator-gtk
sudo apt autoremove
sudo apt install usb-creator-gtk

And I checked its installation path:

whereis  usb-creator-gtk
usb-creator-gtk: /usr/bin/usb-creator-gtk /usr/share/man/man8/usb-creator-gtk.8.gz

And I tried to start it directly with:

/usr/bin/usb-creator-gtk

And i did a hexdump which showes there is no 0xd9 at position two. There is an 0x21:

hd -n 32 /usr/bin/usb-creator-gtk
00000000  23 21 2f 75 73 72 2f 62  69 6e 2f 70 79 74 68 6f  |#!/usr/bin/pytho|
00000010  6e 33 0a 0a 23 20 43 6f  70 79 72 69 67 68 74 20  |n3..# Copyright |

But still the same issue.

How to fix Startup Disk Creator which ends in an exception?

python python3 17.10 startup-disk-creator
Martin Hope
stevemccoy
Asked: 2014-06-16 13:37:31 +0800 CST
  • 6

I am trying to create a bootable Ubuntu 14.04 LTS OS on a 32 GB Flash drive. I have partitioned the flash drive, half in NTFS for storage, and half Ext2 as the primary partition to install Ubuntu. When I open Startup Disk Creator it only sees "Lexar USB Flash Drive (/dev/sdb)" and 0.0 B Free Space. I can erase the disk, but this will remove the partitions which is not what I want.

The reason I want to do this is that I use a HP notebook at home which is running Ubuntu 14.04 LTS, and an iMac running Mac OS X 10.9 at work. I want to be able to use the same software at work and home. The USB Ubuntu needs to be bootable from the iMac, and the data partiton needs to be available from this, and on my HP notebook.

Any help or suggestions would be much appreciated.

startup-disk-creator