注意：我看起来这是一个突出的问题： http: //lists.xenproject.org/archives/html/mirageos-devel/2016-02/msg00076.html和https://github.com/mirage/mirage-bootvar -xen/问题/17
我正在尝试从在 AWS 中运行的 mirage-skeleton 获取“hello”示例。我正在使用 mirage 存储库中的“ec2.sh”脚本，运行时出现错误。
我配置、构建、然后部署和运行，示例如下：
> cd ../mirage-skeleton/hello/
> mirage configure --xen
> gmake
> ec2.sh -k mir-console.xen
> ec2-run-instances --region us-west-1 ami-dc96e5bc
在 EC2 控制台的系统日志中，在启动消息之后，我收到此错误：
Xen Minimal OS!
Initialising timer interface
Initialising console ... done.
getenv(OCAMLRUNPARAM) -> null
getenv(CAMLRUNPARAM) -> null
getenv(PATH) -> null
Unsupported function lseek called in Mini-OS kernel
Unsupported function lseek called in Mini-OS kernel
Unsupported function lseek called in Mini-OS kernel
getenv(OCAMLRUNPARAM) -> null
getenv(CAMLRUNPARAM) -> null
getenv(TMPDIR) -> null
getenv(TEMP) -> null
Fatal error: exception Failure("Malformed boot parameter \"ro\"")
Raised at file "src/core/lwt.ml", line 789, characters 22-23
Called from file "lib/main.ml", line 58, characters 10-20
Called from file "main.ml", line 52, characters 5-10
Mirage exiting with status 2
Do_exit called!
这些是我安装的 mirage 库的版本：
mirage 2.7.0 The MirageOS library operating system
mirage-bootvar-xen 0.3.1 Library for reading MirageOS unikernel boo
mirage-clock-xen 1.1 A Mirage-compatible Clock library for Xen
mirage-conduit 2.2.0 Virtual package for the MirageOS Conduit t
mirage-console 2.1.3 A Mirage-compatible Console library for Xe
mirage-dns 2.5.0 Virtual package for the MirageOS DNS trans
mirage-entropy-xen 0.3.0 MirageOS entropy device
mirage-http 2.5.1 MirageOS HTTP client and server driver
mirage-net-xen 1.5.0 Ethernet network device driver for MirageO
mirage-profile 0.6.1 Collect profiling information
mirage-types 2.6.0 Module type definitions for Mirage-compati
mirage-types-lwt 2.6.0 Lwt module type definitions for Mirage-com
mirage-vnetif 0.1.0 Virtual network interface and software swi
mirage-xen 2.3.3 MirageOS library for Xen
mirage-xen-minios 0.8.0 Xen MiniOS guest operating system library
mirage-xen-ocaml 2.3.4 MirageOS headers for the OCaml runtime
mirage-xen-posix 2.3.4 MirageOS library for posix headers
作为参考，对于“hello”示例，config.ml 文件为：
open Mirage
let key =
let doc = Key.Arg.info ~doc:"How to say hello." ["hello"] in
Key.(create "hello" Arg.(opt string "Hello World!" doc))
let main =
foreign
~keys:[Key.abstract key]
"Unikernel.Main" (console @-> job)
let () =
register "console" [main $ default_console]
和unikernel.ml 是
open Lwt
module Main (C: V1_LWT.CONSOLE) = struct
let start c =
for_lwt i = 0 to 4 do
C.log c (Key_gen.hello ()) ;
lwt () = OS.Time.sleep 1.0 in
return ()
done
end
我读到了一些关于引导/内核参数是 MirageOS 最新版本中的一项新功能的信息。我需要在 config.ml 中更改什么来解决这个问题吗？
我应该补充一点，这个例子在 Xen 本地工作：
> sudo xl create -c console.xl
Xen Minimal OS!
Initialising timer interface
Initialising console ... done.
getenv(OCAMLRUNPARAM) -> null
getenv(CAMLRUNPARAM) -> null
getenv(PATH) -> null
Unsupported function lseek called in Mini-OS kernel
Unsupported function lseek called in Mini-OS kernel
Unsupported function lseek called in Mini-OS kernel
getenv(OCAMLRUNPARAM) -> null
getenv(CAMLRUNPARAM) -> null
getenv(TMPDIR) -> null
getenv(TEMP) -> null
Hello World!
Hello World!
Hello World!
Hello World!
Hello World!
Parsing config from console.xl