Cutom tinycore
From RobotinoWiki
sudo apt install qemu-utils qemu-system-x86 grub-pc-bin mkdir tinycore cd tinycore wget http://tinycorelinux.net/12.x/x86/release/TinyCore-current.iso qemu-img create -f qcow2 core-image.img 64M sudo modprobe nbd max_part=8 sudo qemu-nbd -c /dev/nbd0 core-image.img sudo mkdir /media/cdrom sudo mount TinyCore-current.iso /media/cdrom sudo fdisk /dev/nbd0 n p 1 enter enter p w sudo mkfs.ext2 /dev/nbd0p1 sudo mkdir /media/image sudo mount /dev/nbd0p1 /media/image sudo mkdir /media/image/boot sudo mkdir -p /media/image/tce/optional sudo cp /media/cdrom/boot/core.gz /media/image/boot/ sudo cp /media/cdrom/boot/vmlinuz /media/image/boot/ sudo touch /media/image/tce/onboot.lst sudo grub-install --boot-directory=/media/image/boot /dev/nbd0 sudo umount /dev/nbd0p1 sudo qemu-nbd -d /dev/nbd0 qemu-system-i386 core-image.img linux (hd0,msdos1)/boot/vmlinuz initrd (hd0,msdos1)/boot/core.gz boot sudo qemu-nbd -c /dev/nbd0 core-image.img sudo mount /dev/nbd0p1 /media/image sudo bash -c "cat <<EOF > /media/image/boot/grub/grub.cfg set timeout=3 set root='hd0,msdos1' menuentry 'Boot TinyCore' { linux /boot/vmlinuz initrd /boot/core.gz } EOF"