If using Uefi installs you only need to have a vfat formated first partition with a folder called efi and the appropriate efi binary/substructure. You can use the rest of the disk as you like.
BIOS installers on the same can be achieved with syslinux in addition to uefi. However I find that just having uefi seems to go better these days (at least if installing onto recent hardware). Due to varying levels of vendor write as around CSM (compatibility BIOS/system mode) breaking dual BIOS/eufi media installers. -Joel On Sat., 12 Jan. 2019, 09:48 MENGUAL Jean-Philippe <mengualjean...@free.fr wrote: > Hi, > > My purpose is having a USB stick splitted in 2 parts: > 1. MBR + partitions: a Debian installer from an ISO > 2. A blank partition to install data or whatver > > While I know to "burn" an iso on a key via dd, how can I do to have a > clean installer but using key for other usages? > > Thanks very much > > regards > > -- > [image: Logo Hypra] JEAN-PHILIPPE MENGUAL > DIRECTEUR TECHNIQUE ET QUALITÉ > 102, rue des poissonniers, 75018, Paris > Tel : +331 84 73 06 61 <+33184730661> Mob : +336 76 34 93 37 > <+33676349337> > jpmeng...@hypra.fr > www.hypra.fr > [image: Facebook Hypra] <https://www.facebook.com/hyprasoftware/> [image: > Twitter Hypra] <https://twitter.com/Hypra_> [image: Linkedin > Jean-Philippe] > <https://fr.linkedin.com/in/jean-philippe-mengual-800133135> > >
