Le 10/05/2019 à 16:24, An Liu a écrit :
The initrd.gz included in Debian installer ISO images cannot read files from an ISO image, only from a plain drive or partition. This is why you need an initrd.gz for hd-media. Note that there may also be restrictions about the supported filesystem types containing the ISO image.yes, that's why i ask this question. The initrd.gz from iso can't locate iso file, but i can. how can let the install process know where the iso file is.
IIRC and although it did not change with Buster, the initrd.gz in installation images does not include the loop module either. So it is not able be able to mount an ISO image.