Create disk image file for embedded system or virtual machine.
mkdiskimg config.json
- Create
full.imgwith 64M size and mbr label. - Create one 1M vfat partition; one 50M ext4 partition, and remaining space for a swap partition. Size can be specified by
startandendsector, or withsize. - Extract rootfs archieve
root_fs/rootfs.tar.gzto ext4 partition. - Copy
fat_files/boot.binto vfat partition. - Copy all files from
misc_filesto/root/of ext4 partition. - Write
Hello, world!intestfileof vfat partition.
{
"name" : "full",
"size" : "64M",
"label" : "mbr",
"parts" : [
{
"filesystem" : "vfat",
"type" : "p",
"mbr_type" : "0x0b",
"gpt_type" : "C12A7328-F81F-11D2-BA4B-00A0C93EC93B",
"start" : "2048",
"end" : "4095"
},
{
"filesystem" : "ext4",
"type" : "p",
"mbr_type" : "0x83",
"size" : "60M"
},
{
"filesystem" : "swap",
"type" : "p",
"mbr_type" : "0x82",
"end" : "-40"
}
],
"tarballs" : [
{
"part" : "2",
"target" : "/",
"source" : "root_fs/rootfs.tar.gz"
}
],
"uploads" : [
{
"part" : "1",
"target" : "/boot.bin",
"source" : "fat_files/boot.bin"
},
{
"part" : "2",
"target" : "/root/",
"source" : "misc_files/*"
}
],
"writes" : [
{
"part" : "1",
"path" : "/testfile",
"content" : "Hello, world!"
}
]
}