[SOLVED] "Live" USBs not working

colorpurple21859 · 02-15-2023, 06:32 PM

mount command not found doesn’t make sense.

I notice your location is Canada. If you system is non-English you will need to convert to the language of your system I think.

RenH · 02-15-2023, 07:10 PM

No, no, English is the basic language in British Columbia. I will try to send you a photo, if I know how to.

colorpurple21859 · 02-15-2023, 08:08 PM

try this:

Code:

sudo su -
mount /dev/sdb1 /mnt/usb
mount /home/<user directory>/Downloads/Lubuntu 22.04.LTS amd64.iso /mnt/iso
cp -a /mnt/iso/* /mnt/usb/
cp /home/<user directory>/Downloads/bootia32.efi /mnt/usb/EFI/boot/

colorpurple21859 · 02-15-2023, 08:26 PM

Just did some testing, the name of the iso is wrong in the mount command for the iso, I copied what I thought was the name of the iso from an earlier post.

RenH · 02-16-2023, 01:16 AM

Thanks colorpurple. I was going to send you a screen capture via Flickr but your last replies preempted my action.

Following your last email I went back and checked the name of the Lubuntu I am using. It is:

Quote:

lubuntu-22.04.1-desktop-amd64.iso

. There are no spaces between letters or numbers. So I used it instead of the one we have been using.Programme displayed

Quote:

this device does not exist

.

Your command line:

Quote:

mount /home/<user directory>/Downloads/Lubuntu 22.04.LTS amd64.iso /mnt/iso

I wrote:

Quote:

mount /home/reynold/Downloads/lubuntu-22.04.1-desktop-amd64.iso /mnt/iso

Well I got something!

Quote:

mount: /mnt/iso: WARNING: source write-protected, mounted read-only

.

When I typed the line:

Quote:

sudo cp -a /mnt/iso/* /mnt/usb

I got:

Quote:

cp: cannot create directory '/mnt/usb/boot': Input/output error
cp: cannot create regular file '/mnt/usb/boot.catalog': Input/output error
cp: cannot create directory '/mnt/usb/casper': Input/output error
cp: cannot create directory '/mnt/usb/dists': Input/output error
cp: cannot create directory '/mnt/usb/EFI': Input/output error
cp: cannot create directory '/mnt/usb/install': Input/output error
cp: cannot create regular file '/mnt/usb/md5sum.txt': Input/output error
cp: cannot create directory '/mnt/usb/pool': Input/output error
cp: cannot create directory '/mnt/usb/preseed': Input/output error
cp: cannot create symbolic link '/mnt/usb/ubuntu': Operation not permitt

fatmac · 02-16-2023, 03:44 AM

Looks like you may not have a /mnt/usb mounted....

colorpurple21859 · 02-16-2023, 05:04 AM

Quote:

this device does not exist

Check and see if the usb you are attempting to put iso on is still /dev/sdb

Code:

sudo parted -l

colorpurple21859 · 02-16-2023, 07:17 AM

maybe this will be easier:
open file-manager go to Downloads, right click the iso, click mount
got to where the iso is mounted
open another file manager go to the usb, drag and drop files from the iso to the usb.

RenH · 02-16-2023, 03:10 PM

I did

Quote:

sudo parted -l

and got:

Quote:

Model: ATA WDC WD10EZEX-21M (scsi)
Disk /dev/sda: 1000GB
Sector size (logical/physical): 512B/4096B
Partition Table: gpt
Disk Flags:

Number Start End Size File system Name Flags
1 1049kB 538MB 537MB fat32 EFI System Partition boot, esp
2 538MB 607GB 607GB ext4
4 607GB 992GB 385GB ext4
3 992GB 1000GB 8472MB linux-swap(v1) swap

Model: JetFlash Transcend 8GB (scsi)
Disk /dev/sdb: 7723MB
Sector size (logical/physical): 512B/512B
Partition Table: msdos
Disk Flags:

Number Start End Size Type File system Flags
1 1049kB 7722MB 7721MB primary fat32

RenH · 02-16-2023, 03:40 PM

Hi colorpurple,
I just searched for /mnt/usb and I obviously have it:

Quote:

/$ ls
bin etc lib lost+found proc snap usr
boot home lib32 media root srv var
cdrom initrd.img lib64 mnt run sys vmlinuz
dev initrd.img.old libx32 opt sbin tmp vmlinuz.old
reynold@reynold-Aspire-XC-603:/$ cd /mnt
reynold@reynold-Aspire-XC-603:/mnt$ ls
iso usb

What I can't understand is that when I look at the attached USB under "Devices" on my hard drive I see "7.7 GB Volume" but it is blank!

colorpurple21859 · 02-16-2023, 06:41 PM

I edited the commands in post 25 for the correct iso name. Try running the commands again

computersavvy · 02-16-2023, 07:24 PM

Quote:

Originally Posted by RenH

I wrote:

Code:

sudo cp -a /mnt/iso/* /mnt/usb

Well I got something! .

Code:

cp: cannot create directory '/mnt/usb/boot': Input/output error
cp: cannot create regular file '/mnt/usb/boot.catalog': Input/output error
cp: cannot create directory '/mnt/usb/casper': Input/output error
cp: cannot create directory '/mnt/usb/dists': Input/output error
cp: cannot create directory '/mnt/usb/EFI': Input/output error
cp: cannot create directory '/mnt/usb/install': Input/output error
cp: cannot create regular file '/mnt/usb/md5sum.txt': Input/output error
cp: cannot create directory '/mnt/usb/pool': Input/output error
cp: cannot create directory '/mnt/usb/preseed': Input/output error
cp: cannot create symbolic link '/mnt/usb/ubuntu': Operation not permitted

This response seems likely if your user does not have write permissions at the mount point (/mnt/usb).

RenH · 02-16-2023, 11:05 PM

Hi Colorpurple,

SOME SUCCESS! I succeeded in installing Lubuntu on the USB. I moved the USB over to the Notebook and booted up. It showed the Lubuntu emblem but otherwise the programme is stuck! I have over 4 gigs left on the USB. Sooo close!

My Bios version is 309 and I think there is a newer one.

Strange, but when I did

Quote:

lsblck

it showed I had sda and sdc but no sdb, which used to be the USB!

fatmac · 02-17-2023, 04:16 AM

Quote:

Originally Posted by RenH

I have been trying to use a live USB without success. My latest Live USB has Lubuntu. Nothing happens, even when I tried earlier USBs of other Ubuntu versions. I did the SHA256 test and the downloaded version is fine. I used Startup Disk Creator. Is there something I am doing wrong or not doing?

Thanks for any advice!
Ren

I have a feeling that you are not writing the Ubuntu O/S as a disk image, if you are trying to use it as a boot medium.

Quote:

sudo cp -a /mnt/iso/* /mnt/usb

The above will copy all the files to the USB disk, but it won't be bootable, for that to happen, it must be copied as a disk image.

Code:

sudo cp file.iso /dev/sd?

Use whatever your usb disk is, /dev/sdb usually.

(I normally use dd to create bootable pendrives, but 'cp' will work too.)

fatmac · 02-17-2023, 04:20 AM

Quote:

Originally Posted by RenH

Strange, but when I did it showed I had sda and sdc but no sdb, which used to be the USB!

You likely have 2 USB socket controlled by 2 different USB hubs, & put it into the other socket; or removed & reinserted it.