问题

CVM的习惯开始

  • 2018年9月21日
  • 4回复
  • 15的观点
F
你好，我刚刚在3x Supermicro白盒(三星960 nvme 250g，英特尔s3600 960g, satadom 32g, x10sdv-7tp4f 64gb ram)上完成了iso CE的新安装。我注意到CVM不是在所有三个主机上启动，所以我登录并试图手动启动，但wound up得到这个错误:

代码: 
[root@NTNX-190543cf-A ~]# virsh start NTNX-190543cf-A-CVM . log . log . log . log . log . log . log . log . log . log . log . log

error: Failed to start domain NTNX-190543cf-A-CVM .日志含义

error: Path '/dev/nvme0n1' is not accessible:没有这样的文件或目录


有人能指导我如何解决这个错误，我想移除驱动器，但想看看是否有一个更简单的方法。谢谢
    \r\n
    \r\n
    code:<\/b>
    [root@NTNX-190543cf-A ~]# virsh start NTNX-190543cf-A-CVM

    error: Failed to start domain NTNX-190543cf-A-CVM

    error: Path '\/dev\/nvme0n1' is not accessible: No such file or directory
    <\/pre><\/div>
    \r\n
    \r\nCan someone guide me on how to resolve this error, I thought about removing the drive, but wanted to check to see if there is a easier method. Thanks","quoteUsername":"fshearer","translations":{"Common":{"like":"Like","unlike":"Unlike"},"Forum":{"Quote":"Quote","Share":"Share"}}}">
    本主题已关闭供评论

    4回复

    andrew_ct
    Userlevel 5
    徽章 + 9
    你好,
    可能是一个问题与nvme-见https://next.nutanix.com/discussion-forum-14/samsung-nvme-boot-fail-28145 ?
    中有一个类似的错误信息
    https://next.nutanix.com/discussion-forum-14/unable-to-start-cvm-30853
    但我猜是nvme那个。
    \r\nCould be an issue with nvme - see https:\/\/next.nutanix.com\/discussion-forum-14\/samsung-nvme-boot-fail-28145 ?
    \r\nThere was a similar error message in
    \r\nhttps:\/\/next.nutanix.com\/discussion-forum-14\/unable-to-start-cvm-30853
    \r\nbut I'd guess it is the nvme one.","quoteUsername":"andrew_ct","translations":{"Common":{"like":"Like","unlike":"Unlike"},"Forum":{"Quote":"Quote","Share":"Share"}}}">
    米
    Userlevel 1
    徽章 ＋３
    用virsh dumpxml检查CVM配置，可能配置中有双通NVMe设备。从XML配置中删除对应NVMe驱动器的hostdev条目，并重新定义域，然后尝试启动它。这似乎是配置生成器中的一个bug，它仍然启用了旧版本的NVMe PCIe直通代码。
    F
    感谢andrew_ct和Maxim的回复，从你给我的链接和进一步的调查中，我发现CE安装在我的SSD上，而不是我的Satadom。

    代码: 
    警告:fdisk GPT支持目前是新的，因此还处于实验阶段。请自行决定使用。

    硬盘/dev/sdb: 960.2 GB, 960197124096字节，1875385008个扇区
    单位= 1 * 512 = 512字节扇区
    扇区大小(逻辑/物理):512字节/ 4096字节
    I/O大小(最小/最优):4096字节/ 4096字节
    磁盘标签类型:gpt
    磁盘标识符:3 fbdffd4 d50c - 4 f14 d833c349881——9455 - 9


    #开始结束大小类型名称
    1 2048 20971519 10G Linux filesyste primary
    2 20973568 41943039 10G Linux文件系统主
    3 41945088 125829119 40G Linux文件系统主
    4 125831168 1875384319 834.3G Linux文件系统主

    硬盘/dev/sda: 31.7 GB, 31675383808字节，61865984个扇区
    单位= 1 * 512 = 512字节扇区
    扇区大小(逻辑/物理):512字节/ 512字节
    I/O大小(最小/最优):512字节/ 512字节
    磁盘标签类型:dos
    x000ad699磁盘标识符:0

    Device Boot Start End Blocks Id System
    /dev/sda1 * 2048 61865983 30931968 83 Linux
    警告:fdisk GPT支持目前是新的，因此还处于实验阶段。请自行决定使用。

    磁盘/dev/nvme0n1: 250.1 GB, 250059350016字节，488397168个扇区
    单位= 1 * 512 = 512字节扇区
    扇区大小(逻辑/物理):512字节/ 512字节
    I/O大小(最小/最优):512字节/ 512字节
    磁盘标签类型:gpt
    磁盘标识符:EAA6778D-EF70-42E4-B75E-5A6C81CF63D1


    #开始结束大小类型名称
    1 2048 488394751 232.9G Linux文件系统主





    我要尝试USB安装，看看我是否能让CE安装到SSD上。在XML配置文件中，我注意到驱动器没有正确匹配。例如，fdisk中的/dev/sdb是我的Intel SSD 960G，但在配置文件中显示NVMe为/dev/sdb。

    代码:


    \r\n
    \r\n
    code:<\/b>
    WARNING: fdisk GPT support is currently new, and therefore in an experimental phase. Use at your own discretion.

    Disk \/dev\/sdb: 960.2 GB, 960197124096 bytes, 1875385008 sectors
    Units = sectors of 1 * 512 = 512 bytes
    Sector size (logical\/physical): 512 bytes \/ 4096 bytes
    I\/O size (minimum\/optimal): 4096 bytes \/ 4096 bytes
    Disk label type: gpt
    Disk identifier: 3FBDFFD4-D50C-4F14-9455-9D833C349881


    #         Start          End    Size  Type            Name
     1         2048     20971519     10G  Linux filesyste primary
     2     20973568     41943039     10G  Linux filesyste primary
     3     41945088    125829119     40G  Linux filesyste primary
     4    125831168   1875384319  834.3G  Linux filesyste primary

    Disk \/dev\/sda: 31.7 GB, 31675383808 bytes, 61865984 sectors
    Units = sectors of 1 * 512 = 512 bytes
    Sector size (logical\/physical): 512 bytes \/ 512 bytes
    I\/O size (minimum\/optimal): 512 bytes \/ 512 bytes
    Disk label type: dos
    Disk identifier: 0x000ad699

       Device Boot      Start         End      Blocks   Id  System
    \/dev\/sda1   *        2048    61865983    30931968   83  Linux
    WARNING: fdisk GPT support is currently new, and therefore in an experimental phase. Use at your own discretion.

    Disk \/dev\/nvme0n1: 250.1 GB, 250059350016 bytes, 488397168 sectors
    Units = sectors of 1 * 512 = 512 bytes
    Sector size (logical\/physical): 512 bytes \/ 512 bytes
    I\/O size (minimum\/optimal): 512 bytes \/ 512 bytes
    Disk label type: gpt
    Disk identifier: EAA6778D-EF70-42E4-B75E-5A6C81CF63D1


    #         Start          End    Size  Type            Name
     1         2048    488394751  232.9G  Linux filesyste primary
    <\/pre><\/div>
    \r\n
    \r\n
    \r\n
    \r\n
    \r\nI'm going to try the USB install and see if I can get CE to install on the SSD. I did notice on the XML config file that the drive weren't properly matching up. For example \/dev\/sdb in fdisk is my Intel SSD 960G but in the config file it's showing the NVMe as \/dev\/sdb.
    \r\n
    \r\n
    code:<\/b>
     
     
    <\/pre><\/div>","quoteUsername":"fshearer","translations":{"Common":{"like":"Like","unlike":"Unlike"},"Forum":{"Quote":"Quote","Share":"Share"}}}">
    米
    Userlevel 1
    徽章 ＋３

    我要尝试USB安装，看看我是否能让CE安装到SSD上。在XML配置文件中，我注意到驱动器没有正确匹配。例如，fdisk中的/dev/sdb是我的Intel SSD 960G，但在配置文件中显示NVMe为/dev/sdb。
    代码: 
    
            
    
               
           
    我说，试着想象你想要安装CE的驱动器，因为ISO安装程序有奇怪的逻辑来决定用什么驱动器作为引导盘(至少没有文档和用户控制)，通过想象，你确定你映像的驱动器将是AHV的引导盘。
    
           
    关于字母命名——你可能会提到“目标”命名，它是虚拟机本地的，不需要精确匹配HV的设备顺序。另外，如果您将nvme0n1映射为磁盘类型的设备，则它总是映射为SCSI磁盘(sdX)，因此将使用一个字母表示它。
    
          
    
           
           

    \r\nI'm going to try the USB install and see if I can get CE to install on the SSD. I did notice on the XML config file that the drive weren't properly matching up. For example \/dev\/sdb in fdisk is my Intel SSD 960G but in the config file it's showing the NVMe as \/dev\/sdb.
    code:<\/b>
    <\/pre><\/div><\/content-quote>
    \r\nI say try imaging the drive you want to install CE on, as ISO installer has weird logic to determine what drive to use as boot disk (at least undocumented and out of user control), with imaging you are sure that the drive you imaged will be AHV's boot drive.
    \r\n
    \r\nAbout letter naming - you probably refer to \"target\" naming, which is VM local and not need to exactly match the HV's device order. Also nvme0n1 is always mapped as SCSI disk (sdX) if you get it to map as device of type disk, thus a letter would be used for it.","quoteUsername":"Maxim Grishin","translations":{"Common":{"like":"Like","unlike":"Unlike"},"Forum":{"Quote":"Quote","Share":"Share"}}}">
            
           
    
           
    
          
    
         
    
        
    
       
    
      
    
     
    
     
    
      
    
       
    
       
    
      
    
     
    
    
    
   
    
   
    
    
    
     
    
    
    
   
    
   
    
    
   
    
   
   
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