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**Qqmike** · Jan 20, 2019, 02:03 PM

First, do use dd to make your USB Kybuntu installer flash drive (as you did).
Use 64-bit Kubuntu (as you have done).

This is what my USB Kubuntu live installer flash drive looks like, same as yours (so your looks OK to me):

Code:

sudo fdisk -l /dev/sdb
Disk /dev/sdb: 14.7 GiB, 15733161984 bytes, 30728832 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0x418c5dc0

Device     Boot   Start     End Sectors  Size Id Type
/dev/sdb1  *          0 3673855 3673856  1.8G  0 Empty
/dev/sdb2       3593184 3597855    4672  2.3M ef EFI (FAT-12/16/32)

In UEFI-BIOS-Firmware, disable Fast Boot.
Disable CSM (if you have that option).
Enable UEFI boot (as it seems you did).

Boot the USB in UEFI mode, re-boot if necessary to make your UEFI Kubuntu USB show up properly in your BIOS Boot menu or a BIOS menu called something like Boot Override menu.
This, too:

Boot the Kubuntu installer in UEFI mode: With the DVD/USB installer, reboot the PC, enter the computer's UEFI setup by pressing the correct key for your computer. Find the boot menu (or boot override menu) where the bootable devices are listed. Choose the one that corresponds to the Kubuntu UEFI DVD or USB (it may also show up as a "normal" DVD/USB choice). Look for UEFI /(FAT) or a reference to UEFI. (Example: a DVD may appear as "UEFI (FAT) TSSTcorp CDDVDW SH-224DB (1028 MB)") Select the UEFI DVD or USB option from the firmware boot menu and boot up with it. Now proceed as you usually do to install Kubuntu. If asked where to install GRUB boot-loader, simply choose sda (it won't really matter as the installer will automatically identify and use the proper ESP (EFI System Partition)).

From
https://www.kubuntuforums.net/showth...l=1#post379977

Try all that.

Btw, this, from your post above:
ubuntu (KINGSTON SUV 400S37120G)
Is that your USB flash drive? If so, it does NOT have any UEFI/EFI identifiers in it, which it should. As I say, re-boot again with your USB still plugged, to see if that makes any difference (I've had that happen to me once and had to boot/re-boot twice to get it recognized by BIOS).

**Qqmike** · Jan 20, 2019, 02:07 PM

And, just in case, I'll drop this, although it's a bit too soon:

Does your laptop have a GPT (GUID Partition Table), the new kind of partition table (as opposed to the older MBR)?
I'll bet it does.
If, so, does your hard drive have an ESP--EFI System Partition?
Make sure it does before you install Kubuntu.

Configure your UEFI firmware This is up to you and depends on what you want or need. Do this before installing Kubuntu.
(Recent personal example, for easy UEFI booting: CSM (compatibility support module): set to Auto (default)--or just turn it OFF; Disable Secure Boot: Change to “Other O/S”, which disables Secure Boot for the ASUS UEFI; and Disable Fast Boot.)

Partition the HDD with GParted: GPT and include an ESP (EFI System Partition)
GParted version you'll need: "amd64 64-bit version runs on x86-64 based computers, with ability to access more than 4 gigabytes of memory, and supports use of multiple processor cores. For newer (>2010) computers with UEFI instead of legacy BIOS try this one."

Prior to installing Kubuntu, partition the drive using GParted Live CD/USB. Do this as you normally do, note two things: (1) Make a new partition table, type GPT (Device > Create Partition Table: gpt); and (2) Make a special partition for the ESP (EFI System Partition: it will contain boot loaders for the computer). It may be anywhere, but keep it simple/standard and, if possible, use the first partition sda1; 100-512 MB (recommended at least 200 MB); FAT 32; in GParted set the boot flag on it (this marks it as the ESP or type EF00); and optionally you may set a label to recognize it (Partition > Label).

Again, from:
https://www.kubuntuforums.net/showth...l=1#post379977

**oshunluvr** · Jan 20, 2019, 05:53 PM

If your current install is using GRUB2 (the newest GRUB), you can boot directly from an ISO rather easily.

Just copy the ISO to your /boot folder, edit /etc/grub.d/40_custom and add this to the file:

menuentry 'Kbuntu 18.04 ISO' --class iso {
set isofile="/boot/kubuntu-18.04-desktop-amd64.iso"
loopback loop (hd0,3)$isofile
linux (loop)/casper/vmlinuz boot=casper iso-scan/filename=$isofile noprompt noeject
initrd (loop)/casper/initrd.lz
}

Use the name of whatever ISO you're trying to install and modify the (hd0,3) to match your drive and partition. Drives are numbered from zero but partitions from one - I have no idea why someone thought it was a good idea to number them differently

.

Then run "update-grub" and reboot. Select the ISO and go for an install. IMO, your best bet is to have a fresh partition to install to and leave your current one intact just in case. Once the new install is good to go, then you can delete the old one. OF course, if you're committed to the upgrade and your home is backup up, go for it.

**Qqmike** · Jan 20, 2019, 06:29 PM

True ... but IMO he needs to diagnose this issue with both the USB and the UEFI-BIOS ... also to be able to use the USB as a rescue medium in the future.

**oshunluvr** · Jan 21, 2019, 07:22 AM

Well, I saw the issue as the OP requested - to be able to boot and install a newer version of Kubuntu. The USB not booting is causing the issue, but not the primary goal. Not saying I disagree that one should be able to boot to USB if the BIOS supports it, but what if it can't? Like it's broken or unsolvable? An alternative to buying a new laptop seemed in order. Also, I thought it might be easier to trouble-shoot if the OP was on a current version of Kubuntu, but maybe not.

**claydoh** · Jan 21, 2019, 03:13 PM

Have you tried something other than unetbootin? This tool has been mostly unreliable in my experience the past few years for making Ubuntu disks. Rosa or Etcher have never failed me, nor has mkusb. Same for Rufus in Windows.

What was the specific dd command that was used?

Have you verified the iso download or grabbed a fresh copy?

Sent from my LG-US998 using Tapatalk

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Laptop doesn't see the USB drive as bootable

Laptop doesn't see the USB drive as bootable

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