On Tue, 10 Jul 2018 23:44:09 +0100 David Howells <dhowells@xxxxxxxxxx> wrote: > sfd = fsopen("ext4", FSOPEN_CLOEXEC); > write(sfd, "s /dev/sdb1"); // note I'm ignoring write's length arg > write(sfd, "o noatime"); > write(sfd, "o acl"); > write(sfd, "o user_attr"); > write(sfd, "o iversion"); > write(sfd, "o "); > write(sfd, "r /my/container"); // root inside the fs > write(sfd, "x create"); // create the superblock A minor detail but ... the "r" operation mentioned above is not actually implemented in this system call. jon -- To unsubscribe from this list: send the line "unsubscribe linux-api" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html