尝试用2个sata硬盘在服务器上添加第二个驱动器

Question

我一直在网上使用一些指南，有一个奇怪的问题。我已经在第一个驱动器sda1、sda2、sda3和sda4上安装了4个分区，我可以在那里看到一个sdb1、sdb2和sdb3，我猜这是从先前的驱动器中得到的。

我的问题是，在设置一个新的硬盘驱动器时，我看到的所有指南都谈到了如何在sda或sdb上运行fdisk，而sdb应该是原始设备。

我的问题是这些设备/dev/sda或/dev/sdb不存在。运行fdisk -l也不会返回任何内容。

谁能给我指明正确的方向？

提前感谢

Command line: BOOT_IMAGE=/boot/bzImage-3.2.13-xxxx-grs-ipv6-64 root=/dev/sda1 ro
Kernel command line: BOOT_IMAGE=/boot/bzImage-3.2.13-xxxx-grs-ipv6-64 root=/dev/sda1 ro
sd 0:0:0:0: [sda] 3907029168 512-byte logical blocks: (2.00 TB/1.81 TiB)
sd 0:0:0:0: Attached scsi generic sg0 type 0
sd 1:0:0:0: [sdb] 3907029168 512-byte logical blocks: (2.00 TB/1.81 TiB)
sd 1:0:0:0: [sdb] 4096-byte physical blocks
sd 1:0:0:0: [sdb] Write Protect is off
sd 1:0:0:0: [sdb] Mode Sense: 00 3a 00 00
sd 1:0:0:0: [sdb] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
sd 1:0:0:0: Attached scsi generic sg1 type 0
sd 0:0:0:0: [sda] 4096-byte physical blocks
sd 0:0:0:0: [sda] Write Protect is off
sd 0:0:0:0: [sda] Mode Sense: 00 3a 00 00
sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
libceph: loaded (mon/osd proto 15/24, osdmap 5/6 5/6)
sda: sda1 sda2 sda3 sda4
sd 0:0:0:0: [sda] Attached SCSI disk
sdb: sdb1 sdb2 sdb3
sd 1:0:0:0: [sdb] Attached SCSI disk
md: invalid raid superblock magic on sdb1
md: sdb1 does not have a valid v0.90 superblock, not importing!
md: invalid raid superblock magic on sdb2
md: sdb2 does not have a valid v0.90 superblock, not importing!
EXT3-fs (sda1): error: couldn't mount because of unsupported optional features (240)
EXT2-fs (sda1): error: couldn't mount because of unsupported optional features (240)
EXT4-fs (sda1): mounted filesystem with ordered data mode. Opts: (null)
EXT4-fs (sda1): re-mounted. Opts: errors=remount-ro
Adding 1047548k swap on /dev/sda4.  Priority:-1 extents:1 across:1047548k
EXT4-fs (sda2): mounted filesystem with ordered data mode. Opts: (null)
EXT4-fs (sda3): mounted filesystem with ordered data mode. Opts: (null)

Answer 1

键入以下命令：

sudo /dev/MAKEDEV sd

这将运行MAKEDEV程序，并告诉它重新创建丢失的/dev/sd*设备文件。

Answer 2

在谷歌上搜索了半天之后，我想我已经知道了。您可以重新创建设备节点。一旦我重新创建了/dev/sda和/dev/sdb，一切就都正常了。fdisk -l工作正常，我能够按我的意愿设置分区和挂载点。

用于重新创建设备节点的网页位于http://geekyschmidt.com/2011/03/12/why-is-my-devsda-missing下面。