linux sdb目录,linux – / dev / sdb：没有这样的文件或目录(但是/ dev / sdb1等存在)...

我不确定这里有什么问题,但是当运行fdisk -l时,我没有得到输出,并且在运行时

fdisk /dev/sdb # I get this

fdisk: unable to open /dev/sdb: No such file or directory

我正在运行Ubuntu 12.10服务器

有人可以告诉我我做错了什么吗？我想删除/ dev / sdb2-3,只有一个sdb分区

我对这个服务器的设置做的唯一不同的是使用ext4而不是ext3,我认为ext4的额外速度会有所帮助,因为我现在正在使用SSD

root@sb8:~# ll /dev/sd*

brw-rw---- 1 root disk 8, 1 Nov 23 14:58 /dev/sda1

brw-rw---- 1 root disk 8, 2 Nov 23 14:55 /dev/sda2

brw-rw---- 1 root disk 8, 17 Nov 23 19:20 /dev/sdb1

brw-rw---- 1 root disk 8, 18 Nov 23 15:45 /dev/sdb2

brw-rw---- 1 root disk 8, 19 Nov 23 14:51 /dev/sdb3

brw-rw---- 1 root disk 8, 33 Nov 23 15:47 /dev/sdc1

brw-rw---- 1 root disk 8, 49 Nov 23 15:48 /dev/sdd1

root@sb8:~# cat /proc/partitions

major minor #blocks name

8 0 117220824 sda

8 1 112096256 sda1

8 2 5119968 sda2

8 16 117220824 sdb

8 17 20971520 sdb1

8 18 95718400 sdb2

8 19 526304 sdb3

8 48 1953514584 sdd

8 49 1863013655 sdd1

8 32 1953514584 sdc

8 33 1863013655 sdc1

root@sb8:~# ll /dev/disk/by-path/

total 8

drwxr-xr-x 2 root root 4096 Nov 23 15:48 ./

drwxr-xr-x 5 root root 4096 Nov 23 15:42 ../

lrwxrwxrwx 1 root root 10 Nov 23 14:58 pci-0000:00:1f.2-scsi-0:0:0:0-part1 -> ../../sda1

lrwxrwxrwx 1 root root 10 Nov 23 19:20 pci-0000:00:1f.2-scsi-1:0:0:0-part1 -> ../../sdb1

lrwxrwxrwx 1 root root 10 Nov 23 15:45 pci-0000:00:1f.2-scsi-1:0:0:0-part2 -> ../../sdb2

lrwxrwxrwx 1 root root 10 Nov 23 15:47 pci-0000:00:1f.2-scsi-2:0:0:0-part1 -> ../../sdc1

lrwxrwxrwx 1 root root 10 Nov 23 15:48 pci-0000:00:1f.2-scsi-3:0:0:0-part1 -> ../../sdd1

root@sb8:~# df -T /dev

Filesystem Type 1K-blocks Used Available Use% Mounted on

/dev/root ext4 111986032 1993108 104388112 2% /