我正在尝试安装闪存驱动器（16 GB 酷睿) 在我的 Arch Linux 桌面上。它在我的 Arch Linux 笔记本电脑上运行良好，因此这不是驱动器的问题。
驱动器位于/var/log/messages.log.3：
Dec 16 20:20:45 localhost kernel: [5876090.739078] usb 2-2: new high speed USB device number 2 using ehci_hcd
在里面lsusb：
Bus 002 Device 002: ID 0781:5530 SanDisk Corp. Cruzer
但是当我以 root 身份运行时它没有显示出来fdisk -l（忽略错误；它们来自我其他驱动器上的所有 GUID 分区表）：
WARNING: GPT (GUID Partition Table) detected on '/dev/sda'! The util fdisk doesn't support GPT. Use GNU Parted.
Disk /dev/sda: 64.0 GB, 64023257088 bytes
255 heads, 63 sectors/track, 7783 cylinders, total 125045424 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 identifier: 0x00000000
Device Boot Start End Blocks Id System
/dev/sda1 1 125045423 62522711+ ee GPT
WARNING: GPT (GUID Partition Table) detected on '/dev/sdb'! The util fdisk doesn't support GPT. Use GNU Parted.
Disk /dev/sdb: 2000.4 GB, 2000398934016 bytes
255 heads, 63 sectors/track, 243201 cylinders, total 3907029168 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 identifier: 0x00000000
Device Boot Start End Blocks Id System
/dev/sdb1 1 3907029167 1953514583+ ee GPT
WARNING: GPT (GUID Partition Table) detected on '/dev/sdd'! The util fdisk doesn't support GPT. Use GNU Parted.
Disk /dev/sdd: 2000.4 GB, 2000398934016 bytes
255 heads, 63 sectors/track, 243201 cylinders, total 3907029168 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 identifier: 0x00000000
Device Boot Start End Blocks Id System
/dev/sdd1 1 3907029167 1953514583+ ee GPT
WARNING: GPT (GUID Partition Table) detected on '/dev/sde'! The util fdisk doesn't support GPT. Use GNU Parted.
Disk /dev/sde: 2000.4 GB, 2000398934016 bytes
255 heads, 63 sectors/track, 243201 cylinders, total 3907029168 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 identifier: 0x00000000
Device Boot Start End Blocks Id System
/dev/sde1 1 3907029167 1953514583+ ee GPT
WARNING: GPT (GUID Partition Table) detected on '/dev/sdf'! The util fdisk doesn't support GPT. Use GNU Parted.
Disk /dev/sdf: 2000.4 GB, 2000397852160 bytes
255 heads, 63 sectors/track, 243201 cylinders, total 3907027055 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 identifier: 0x00000000
Device Boot Start End Blocks Id System
/dev/sdf1 1 3907027054 1953513527 ee GPT
WARNING: GPT (GUID Partition Table) detected on '/dev/sdc'! The util fdisk doesn't support GPT. Use GNU Parted.
Disk /dev/sdc: 2000.4 GB, 2000398934016 bytes
255 heads, 63 sectors/track, 243201 cylinders, total 3907029168 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 identifier: 0x00000000
Device Boot Start End Blocks Id System
/dev/sdc1 1 3907029167 1953514583+ ee GPT
WARNING: GPT (GUID Partition Table) detected on '/dev/sdg'! The util fdisk doesn't support GPT. Use GNU Parted.
Disk /dev/sdg: 2000.4 GB, 2000397852160 bytes
255 heads, 63 sectors/track, 243201 cylinders, total 3907027055 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 identifier: 0x00000000
Device Boot Start End Blocks Id System
/dev/sdg1 1 3907027054 1953513527 ee GPT
Disk /dev/mapper/root: 26.8 GB, 26841448448 bytes
255 heads, 63 sectors/track, 3263 cylinders, total 52424704 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 identifier: 0x00000000
Disk /dev/mapper/root doesn't contain a valid partition table
Disk /dev/md127: 8001.6 GB, 8001580695552 bytes
2 heads, 4 sectors/track, 1953510912 cylinders, total 15628087296 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 524288 bytes / 2097152 bytes
Disk identifier: 0xe8070000
Disk /dev/md127 doesn't contain a valid partition table
Disk /dev/mapper/home: 36.0 GB, 35967540736 bytes
255 heads, 63 sectors/track, 4372 cylinders, total 70249103 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 identifier: 0x00000000
Disk /dev/mapper/home doesn't contain a valid partition table
Disk /dev/mapper/data: 8001.6 GB, 8001578598400 bytes
255 heads, 63 sectors/track, 972803 cylinders, total 15628083200 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 524288 bytes / 2097152 bytes
Disk identifier: 0x00000000
Disk /dev/mapper/data doesn't contain a valid partition table
它在以下任一情况下都不会显示为设备文件/dev：
# ls /dev/sd*
/dev/sda /dev/sda1 /dev/sda2 /dev/sda3 /dev/sda4 /dev/sda5 /dev/sdb /dev/sdb1 /dev/sdc /dev/sdc1 /dev/sdd /dev/sdd1 /dev/sde /dev/sde1 /dev/sdf /dev/sdf1 /dev/sdg /dev/sdg1
这些都是我的常用硬盘，正如您从上面的 fdisk 输出中看到的那样。
答案1
此消息用于识别 USB 设备。通常您还会看到有关大容量存储的消息，尤其是有关驱动器容量的消息。
尝试modprobe usb-storage加载闪存盘的驱动程序。