I tried to create a multiboot USB following this tutorial:
http://www.pendrivelinux.com/boot-multiple-iso-from-usb-via-grub2-using-linux/#more-5352
But Instead of getting a bootable USB I am not able to detect it in my Kubuntu 16.10 nor Windows 10.
If I plug it in the computer, Kubuntu does not say anything, Windows 10 says, that the device is probably broken.
I tried to list it with fdisk -l as sudo:
Device Boot Start End Sectors Size Id Type
/dev/sda1 2048 1026047 1024000 500M 7 HPFS/NTFS/exFAT
/dev/sda2 1026048 308226047 307200000 146.5G 7 HPFS/NTFS/exFAT
/dev/sda3 308228094 1953523711 1645295618 784.6G 5 Extended
/dev/sda5 308228096 356663642 48435547 23.1G 83 Linux
/dev/sda6 357056512 1943758847 1586702336 756.6G 83 Linux
/dev/sda7 1943760896 1953523711 9762816 4.7G 82 Linux swap / Solaris
/dev/sda8 * 356665344 357054463 389120 190M ef EFI (FAT-12/16/32)
Partition 3 does not start on physical sector boundary.
Partition table entries are not in disk order.
None of these is my USB stick. When I plug it in, nothing changes.
But when I run lsusb as root, when I plug the USB in, i get a new line in the list:
Bus 001 Device 005: ID 058f:1234 Alcor Micro Corp. Flash Drive
Is there a way to make the USB stick visible again? On some forums I found ifnormation, that this behavior mostly means, that the USB stick is physically broken. But I don't think so since It happened after running some fdisk operations on it.
(Sorry about my English.)