USB 只读文件系统

Question

我现在对 Linux 非常有信心，但是这个 U 盘抱怨只读文件系统，但我在一分钟前在 Windows 7 中写入了它，没有任何问题。我已经尝试了其他帖子中的所有建议以及我能想到的所有内容。

这是 dmesg 说明写保护已关闭：

[ 5563.009330] scsi 11:0:0:0: Direct-Access     SanDisk  Cruzer Edge          1.26 PQ: 0 ANSI: 5
[ 5563.009676] sd 11:0:0:0: Attached scsi generic sg5 type 0
[ 5563.011878] sd 11:0:0:0: [sdi] 31266816 512-byte logical blocks: (16.0     GB/14.9 GiB)
[ 5563.013754] sd 11:0:0:0: [sdi] Write Protect is off
[ 5563.013759] sd 11:0:0:0: [sdi] Mode Sense: 43 00 00 00
[ 5563.014970] sd 11:0:0:0: [sdi] Write cache: disabled, read cache: enabled, doesn't support DPO or FUA

这是问题所在：

adam@Home:~$ sudo mount /dev/sdi ~/usb
mount: /dev/sdi is write-protected, mounting read-only

我还用 DD 用零格式化了 USB，然后再试一次：

adam@Home:~$ sudo dd if=/dev/zero of=/dev/sdi bs=1k count=2048
2048+0 records in
2048+0 records out
2097152 bytes (2.1 MB, 2.0 MiB) copied, 0.426446 s, 4.9 MB/s

adam@Home:~$ sudo parted /dev/sdi
GNU Parted 3.2
Using /dev/sdi
Welcome to GNU Parted! Type 'help' to view a list of commands.
(parted) p
Error: /dev/sdi: unrecognised disk label
Model: SanDisk Cruzer Edge (scsi)
Disk /dev/sdi: 16.0GB
Sector size (logical/physical): 512B/512B
Partition Table: unknown
Disk Flags:
(parted) mklabel msdos
(parted) mkpart primary
File system type?  [ext2]? fat32
Start? 1MiB
End? 100%
(parted) p
Model: SanDisk Cruzer Edge (scsi)
Disk /dev/sdi: 16.0GB
    Sector size (logical/physical): 512B/512B
Partition Table: msdos
Disk Flags:

Number  Start   End     Size    Type     File system  Flags
 1      1049kB  16.0GB  16.0GB  primary  fat32        lba

(parted) q
Information: You may need to update /etc/fstab.

adam@Home:~$ lsblk
NAME                MAJ:MIN RM   SIZE RO TYPE   MOUNTPOINT
sda                   8:0    0 698.7G  0 disk
??md0                 9:0    0   2.7T  0 linear /mnt/raiddrives
sdb                   8:16   0 698.7G  0 disk
??md0                 9:0    0   2.7T  0 linear /mnt/raiddrives
sdc                   8:32   0 698.7G  0 disk
??md0                 9:0    0   2.7T  0 linear /mnt/raiddrives
sdd                   8:48   0 698.7G  0 disk
??md0                 9:0    0   2.7T  0 linear /mnt/raiddrives
sde                   8:64   1   7.6G  0 disk
??sde1                8:65   1   487M  0 part   /boot
??sde2                8:66   1     1K  0 part
??sde5                8:69   1   7.1G  0 part
  ??Home--vg-root   252:0    0   3.2G  0 lvm    /
  ??Home--vg-swap_1 252:1    0     4G  0 lvm    [SWAP]
sdi                   8:128  1  14.9G  0 disk
??sdi1                8:129  1  14.9G  0 part

adam@Home:~$ sudo mkfs -t vfat /dev/sdi1
mkfs.fat 3.0.28 (2015-05-16)

adam@Home:~$ sudo mount /dev/sdi ~/usb
mount: wrong fs type, bad option, bad superblock on /dev/sdi,
       missing codepage or helper program, or other error

       In some cases useful info is found in syslog - try
       dmesg | tail or so.

USB 没有用于打开或关闭写保护的按钮。

Answer 1

我修好了它。问题是你必须使用下面的命令来制作 Fat32 FS，而不是 sudo mkfs -t vfat /dev/sdi1.

sudo mkfs.msdos -F 32 /dev/sdi1