mdadm：未找到创建组磁盘

如何解决mdadm：未找到创建组磁盘

我在基于 FEMU project 的 QEMU 虚拟机上运行内核 4.14.214。

我正在运行 QEMU 以通过选项 -kernel 以及 -initrd 获取 bzImage，因此我可以在主机上编译内核，然后运行指向它的 VM。

但是，如果我用我的更改（ext4 FS 上的小更改）编译内核 4.14.214，我会在启动过程中收到以下错误：

[    7.153004] virtio_net virtio0 ens3: renamed from eth0
[    7.153524] PKCS#7 signature not signed with a trusted key
[    7.154868] PKCS#7 signature not signed with a trusted key
[    7.155536] pata_acpi: disagrees about version of symbol module_layout
[    7.155889] PKCS#7 signature not signed with a trusted key
[    7.155898] virtio_scsi: disagrees about version of symbol module_layout
[    7.157421] floppy: disagrees about version of symbol module_layout
[    7.159472] PKCS#7 signature not signed with a trusted key
[    7.163666] nvme_core: disagrees about version of symbol module_layout
[    7.164221] PKCS#7 signature not signed with a trusted key
[    7.164372] PKCS#7 signature not signed with a trusted key
[    7.164377] cryptd: disagrees about version of symbol module_layout
[    7.166350] PKCS#7 signature not signed with a trusted key
[    7.166684] PKCS#7 signature not signed with a trusted key
[    7.166688] cryptd: disagrees about version of symbol module_layout
[    7.166814] PKCS#7 signature not signed with a trusted key
[    7.166820] cryptd: disagrees about version of symbol module_layout
[    7.167022] cryptd: disagrees about version of symbol module_layout
[    7.168635] cryptd: disagrees about version of symbol module_layout
[    7.169154] PKCS#7 signature not signed with a trusted key
[    7.169158] cryptd: disagrees about version of symbol module_layout
[    7.170669] PKCS#7 signature not signed with a trusted key
[    7.170681] PKCS#7 signature not signed with a trusted key
[    7.170686] cryptd: disagrees about version of symbol module_layout
[    7.170790] PKCS#7 signature not signed with a trusted key
[    7.170797] nvme_core: disagrees about version of symbol module_layout
[    7.171959] PKCS#7 signature not signed with a trusted key
[    7.172290] crc32_pclmul: disagrees about version of symbol module_layout
[    7.172980] PKCS#7 signature not signed with a trusted key
[    7.172983] cryptd: disagrees about version of symbol module_layout
[    7.173344] cryptd: disagrees about version of symbol module_layout
[    7.174481] PKCS#7 signature not signed with a trusted key
[    7.174484] crc32_pclmul: disagrees about version of symbol module_layout
[    7.174614] PKCS#7 signature not signed with a trusted key
[    7.175766] PKCS#7 signature not signed with a trusted key
[    7.175772] cryptd: disagrees about version of symbol module_layout
[    7.176123] PKCS#7 signature not signed with a trusted key
[    7.176983] cryptd: disagrees about version of symbol module_layout
[    7.177379] PKCS#7 signature not signed with a trusted key
[    7.177383] crc32_pclmul: disagrees about version of symbol module_layout
[    7.178064] crc32_pclmul: disagrees about version of symbol module_layout
[    7.179263] PKCS#7 signature not signed with a trusted key
[    7.180243] PKCS#7 signature not signed with a trusted key
[    7.180248] cryptd: disagrees about version of symbol module_layout
[    7.180683] PKCS#7 signature not signed with a trusted key
[    7.181368] crct10dif_pclmul: disagrees about version of symbol module_layout
[    7.182580] crct10dif_pclmul: disagrees about version of symbol module_layout
[    7.183079] PKCS#7 signature not signed with a trusted key
[    7.183083] crct10dif_pclmul: disagrees about version of symbol module_layout
[    7.183133] PKCS#7 signature not signed with a trusted key
[    7.183138] crc32_pclmul: disagrees about version of symbol module_layout
[    7.185804] PKCS#7 signature not signed with a trusted key
[    7.187446] PKCS#7 signature not signed with a trusted key
[    7.188295] cryptd: disagrees about version of symbol module_layout
[    7.188542] PKCS#7 signature not signed with a trusted key
[    7.188550] psmouse: disagrees about version of symbol module_layout
[    7.189489] crct10dif_pclmul: disagrees about version of symbol module_layout
[    7.189782] PKCS#7 signature not signed with a trusted key
[    7.189787] cryptd: disagrees about version of symbol module_layout
[    7.191333] PKCS#7 signature not signed with a trusted key
[    7.191394] PKCS#7 signature not signed with a trusted key
[    7.191400] crc32_pclmul: disagrees about version of symbol module_layout
[    7.191450] PKCS#7 signature not signed with a trusted key
[    7.191457] crct10dif_pclmul: disagrees about version of symbol module_layout
[    7.193896] PKCS#7 signature not signed with a trusted key
[    7.194351] cryptd: disagrees about version of symbol module_layout
[    7.194932] PKCS#7 signature not signed with a trusted key
[    7.194937] cryptd: disagrees about version of symbol module_layout
[    7.195398] crct10dif_pclmul: disagrees about version of symbol module_layout
[    7.196451] PKCS#7 signature not signed with a trusted key
[    7.196455] crc32_pclmul: disagrees about version of symbol module_layout
[    7.197953] PKCS#7 signature not signed with a trusted key
[    7.198687] PKCS#7 signature not signed with a trusted key
[    7.198692] crc32_pclmul: disagrees about version of symbol module_layout
[    7.200234] PKCS#7 signature not signed with a trusted key
[    7.201173] crct10dif_pclmul: disagrees about version of symbol module_layout
[    7.202608] crct10dif_pclmul: disagrees about version of symbol module_layout
Begin: Loading essential drivers ... [    8.843472] PKCS#7 signature not signed with a trusted key
[    8.845389] linear: disagrees about version of symbol module_layout
[    8.853690] PKCS#7 signature not signed with a trusted key
[    8.855586] multipath: disagrees about version of symbol module_layout
[    8.864417] PKCS#7 signature not signed with a trusted key
[    8.866558] raid0: disagrees about version of symbol module_layout
[    8.878113] PKCS#7 signature not signed with a trusted key
[    8.880033] raid1: disagrees about version of symbol module_layout
[    8.884784] PKCS#7 signature not signed with a trusted key
[    8.886126] libcrc32c: disagrees about version of symbol module_layout
[    8.892384] PKCS#7 signature not signed with a trusted key
[    8.894524] libcrc32c: disagrees about version of symbol module_layout
[    8.901052] PKCS#7 signature not signed with a trusted key
[    8.902868] libcrc32c: disagrees about version of symbol module_layout
[    8.911109] PKCS#7 signature not signed with a trusted key
[    8.912529] raid10: disagrees about version of symbol module_layout
done.
Begin: Running /scripts/init-premount ... done.
Begin: Mounting root file system ... Begin: Running /scripts/local-top ... done.
Begin: Running /scripts/local-premount ... [    8.963031] PKCS#7 signature not signed with a trusted key
[    8.964099] raid6_pq: disagrees about version of symbol module_layout
done.
Begin: Waiting for root file system ... Begin: Running /scripts/local-block ... mdadm: CREATE group disk not found
mdadm: No arrays found in config file or automatically
done.
Begin: Running /scripts/local-block ... mdadm: CREATE group disk not found
mdadm: No arrays found in config file or automatically
done.
Begin: Running /scripts/local-premount ... done.
Begin: Waiting for root file system ... Begin: Running /scripts/local-block ... mdadm: CREATE group disk not found
mdadm: No arrays found in config file or automatically
done.
Begin: Running /scripts/local-block ... mdadm: CREATE group disk not found
mdadm: No arrays found in config file or automatically
done.
Begin: Running /scripts/local-block ... mdadm: CREATE group disk not found
mdadm: No arrays found in config file or automatically
done.
Begin: Running /scripts/local-block ... mdadm: CREATE group disk not found
mdadm: No arrays found in config file or automatically

[...]

Begin: Running /scripts/local-block ... mdadm: CREATE group disk not found
mdadm: No arrays found in config file or automatically
done.
done.
Gave up waiting for root device.  Common problems:
 - Boot args (cat /proc/cmdline)
   - Check rootdelay= (did the system wait long enough?)
   - Check root= (did the system wait for the right device?)
 - Missing modules (cat /proc/modules; ls /dev)
ALERT!  UUID=1a0e6d86-8bab-47a7-beb3-c96efcb39013 does not exist.  Dropping to a shell!


BusyBox v1.22.1 (Ubuntu 1:1.22.0-15ubuntu1) built-in shell (ash)
Enter 'help' for a list of built-in commands.

(initramfs) 

但是，如果我在没有更改的情况下编译内核，它会正确启动。

正如您在上面的消息中看到的那样，我收到了 initramfs 提示。我试图通过 /dev/sda 找到 initramfs 设备，但未列出。

我不知道如何解决它。

更新 1： 关于我在内核上所做的更改，它们主要是一些 printks 以查看一些代码流，以及一些与挂载无关的标志FS。

更新 2： 通常，当我收到此 initramfs 提示时，我通常会运行 fsck /dev/sda1 以更正 FS 的任何损坏部分。 但现在，/dev/sda1 未列出。

更新 2： 实际上我只是错过了控制台上消息的开头。我添加了它们。 它声称“签名未使用受信任的密钥签名”。