On Wed, Dec 13, 2023 at 11:46:51AM +0100, lacsaP Patatetom wrote: > to quickly test my efi application `./esp/EFI/BOOT/BOOTX64.EFI`, I use the > following command `qemu-system-x86_64 -accel kvm -machine q35 -m 1024 -bios > /usr/share/edk2/x64/OVMF.fd -hda fat:./esp/ -snapshot` but it has recently > failed with the error message given in subject.
I'm not familiar with the QEMU vvfat driver, but FAT16 does allow larger filesystems, I suspect there's a limitation there? > for various reasons, i can't purge/reinitailize/empty the folder : > what other options do I have with qemu or do I have to start from a > lighter folder ? You can create a FAT image, put your files there using e.g mtools and boot from that image: $ fallocate -l 1G esp.img $ mformat -i esp.img $ mcopy -i esp.img -s /path/to/files :: Berto