BSD syscall#549
svc · unix #549
graftdmg
Mounts a signed disk image as an overlay onto a directory subtree (modern macOS).
Prototype
int graftdmg(int dmg_fd, const char *mountdir, uint32_t graft_type, graftdmg_args_un *gda);Returns: int
Arguments
| Name | Type | Dir | Description |
|---|---|---|---|
| dmg_fd | int | - | |
| mountdir | const char | - | |
| graft_type | uint32_t | - | |
| gda | graftdmg_args_un | - |
Version history
| XNU tag | macOS | # |
|---|---|---|
| xnu-8792.41.9 | macOS 13.0 Ventura | 549 |
| xnu-10002.1.13 | macOS 14.0 Sonoma | 549 |
| xnu-11215.1.10 | macOS 15.0 Sequoia | 549 |
| xnu-11417.101.15 | macOS 15.4 Sequoia | 549 |
| xnu-12377.1.9 | macOS 26.0 Tahoe | 549 |
| xnu-10002.41.9 | — | 549 |
| xnu-10002.61.3 | — | 549 |
| xnu-10002.81.5 | — | 549 |
| xnu-10063.101.15 | — | 549 |
| xnu-10063.121.3 | — | 549 |
| xnu-10063.141.1 | — | 549 |
| xnu-11215.41.3 | — | 549 |
| xnu-11215.61.5 | — | 549 |
| xnu-11215.81.4 | — | 549 |
| xnu-11417.121.6 | — | 549 |
| xnu-11417.140.69 | — | 549 |
| xnu-12377.101.15 | — | 549 |
| xnu-12377.41.6 | — | 549 |
| xnu-12377.61.12 | — | 549 |
| xnu-12377.81.4 | — | 549 |
| xnu-8792.61.2 | — | 549 |
| xnu-8792.81.2 | — | 549 |
| xnu-8796.101.5 | — | 549 |
| xnu-8796.121.2 | — | 549 |
| xnu-8796.141.3 | — | 549 |
Notes
Introduced for the Cryptex / boot system architecture and used to graft OS components onto the running system. Requires Apple-signed images and tightly-controlled entitlements; userland callers cannot invoke it.
Related APIs
ungraftdmgmountfmount