J'ai fait cette découverte a propos de ton support d'installation
Drive: sdc _____________________________________________________________________
Disk /dev/sdc: 3.75 GiB, 4007264256 bytes, 7826688 sectors
Disk model: DataTraveler G3
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Partition Boot Start Sector End Sector # of Sectors Id System
/dev/sdc1 * 0 4,812,191 4,812,192 0 Empty
/dev/sdc2 4,073,124 4,081,059 7,936 ef EFI (FAT-12/16/32)
/dev/sdc3 4,812,800 7,826,687 3,013,888 83 Linux
/dev/sdc1 overlaps with /dev/sdc2
GUID Partition Table detected, but does not seem to be used.
Partition Attrs Start Sector End Sector # of Sectors System
/dev/sdc1 + R 0 4,812,135 4,812,136 Data partition (Windows/Linux)
/dev/sdc2 + R 4,073,124 4,081,059 7,936 Data partition (Windows/Linux)
Peux-tu indiquer avec quel outil tu l'as fabriquée?