当我插入我的 16GBAlcor Micro Corp. 闪存盘进入我的openSUSE 13.2(Linux 3.16.7-35-桌面 x86_64 GNU/Linux)系统,我从中获得以下信息journalctl -f
:
kernel: scsi 25:0:0:0: Direct-Access Generic USB Flash Disk 7.76 PQ: 0 ANSI: 4
kernel: sd 25:0:0:0: Attached scsi generic sg2 type 0
kernel: sd 25:0:0:0: [sdb] Attached SCSI removable disk
但fdisk -l
只显示/dev/sda1
了/dev/sda7
——没有/dev/sdbX
;而且也找不到/dev/sdb
:
jsn-dev:/home/jan # /usr/sbin/fdisk /dev/sdb
Welcome to fdisk (util-linux 2.25.1).
Changes will remain in memory only, until you decide to write them.
Be careful before using the write command.
fdisk: cannot open /dev/sdb: No medium found
然而,USB 子系统似乎找到了它:
jsn-dev:/home/jan # lsusb
Bus 002 Device 004: ID 0451:8044 Texas Instruments, Inc.
Bus 002 Device 003: ID 0451:8044 Texas Instruments, Inc.
Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 004 Device 002: ID 0451:8046 Texas Instruments, Inc.
Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 003 Device 004: ID 046d:c326 Logitech, Inc.
Bus 003 Device 003: ID 0451:8044 Texas Instruments, Inc.
Bus 003 Device 002: ID 04ca:0061 Lite-On Technology Corp.
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 003: ID 058f:1234 Alcor Micro Corp. Flash Drive <--
Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
我无法用以下方法覆盖分区表,并且dd
失败了:
jsn-dev:/home/jan # dd if=/dev/zero of=/dev/sdb
dd: failed to open ‘/dev/sdb’: No medium found
我尝试过系统中的所有 USB 端口,Dell T7610
结果相同。
有什么想法我可以进一步调试它吗?