☰

外部 USB 驱动器无写入权限

tag-icon • tag-icon mount usb-drive format 19.04
外部 USB 驱动器无写入权限

我下载了 Ubuntu 并将其复制到装有 Windows 10 的 USB 笔中。

重启后，我在同一台笔记本电脑上安装了 Ubuntu。安装一些软件后，Ubuntu 首先要求我更新到版本 18.10，我确认并更新。大约三天后，Ubuntu 再次要求我更新到版本 19.04。我也确认了。

但现在，我对 USB 笔没有任何写入权限。我无法删除文件，也无法格式化笔。但从笔复制到 Ubuntu 没有任何问题。

我在网上查找了很多解决方法，但都没有效果。

当我尝试格式化时出现错误：

Error wiping device: Failed to open the device '/dev/sda2' (udsiks-error-quark, 0)

当我尝试使用gnome 磁盘，我不能，因为格式是灰色的，我无法点击它。

当我尝试使用 gparted 打开时，出现了同样的只读错误

Unable to open /dev/sdb read-write (Read-only file system).  /dev/sdb has been opened read-only.

在系统日志中：

/var/log/syslog
    May 27 23:11:29 Lenovo-B51-80 udisksd[717]: Cleaning up mount point /media/sebastian/SanDisk (device 8:18 is not mounted)
    May 27 23:11:29 Lenovo-B51-80 ntfs-3g[10126]: Unmounting /dev/sdb2 (SanDisk)
    May 27 23:11:29 Lenovo-B51-80 systemd[1434]: media-sebastian-SanDisk.mount: Succeeded.
    May 27 23:11:29 Lenovo-B51-80 systemd[1]: media-sebastian-SanDisk.mount: Succeeded.
    May 27 23:11:29 Lenovo-B51-80 systemd[1]: Stopping Clean the /media/sebastian/SanDisk mount point...
    May 27 23:11:29 Lenovo-B51-80 systemd[1]: [email protected]: Succeeded.
    May 27 23:11:29 Lenovo-B51-80 systemd[1]: Stopped Clean the /media/sebastian/SanDisk mount point.
    May 27 23:11:29 Lenovo-B51-80 udisksd[717]: Unmounted /dev/sdb2 on behalf of uid 1000

和状态

sudo hdparm -r0 /dev/sdb

/dev/sdb:
 setting readonly to 0 (off)
 readonly      =  0 (off)

我该如何修理 USB 笔？

答案1

我试过了，但出现同样的问题：

dus 12.3.2 
Live drive, that is booted from: /dev/sda
cands=1
sdb
SanDisk_Ultra_Fit
114,6G
usb
USB or memory card
p_target: target=/dev/sdb
Restore  /dev/sdb 
to an MSDOS partition table and a
partition with a FAT32 file system
MODEL     NAME   FSTYPE LABEL     SIZE
Ultra_Fit sdb                   114,6G
          ├─sdb1 vfat             512M
          └─sdb2 ntfs   SanDisk 114,1G
restore
/dev/sdb
-----
Trying to unmount partitions if mounted on the target device
umount: /dev/sdb: not mounted.
umount: /dev/sdb1: not mounted.
umount: /dev/sdb2: not mounted.
--------------------------------------------------------------------------------
gpt_zap: done
dd: failed to open '/dev/sdb': Read-only file system
Warning: Unable to open /dev/sdb read-write (Read-only file system).  /dev/sdb has been opened read-only.
Warning: Unable to open /dev/sdb read-write (Read-only file system).  /dev/sdb has been opened read-only.
Error: Can't write to /dev/sdb, because it is opened read-only.
Warning: Unable to open /dev/sdb read-write (Read-only file system).  /dev/sdb has been opened read-only.
Warning: Unable to open /dev/sdb read-write (Read-only file system).  /dev/sdb has been opened read-only.
Error: You requested a partition from 1049kB to 123GB (sectors 2048..240254975).
The closest location we can manage is 1048kB to 1048kB (sectors 2047..2047).
Warning: Unable to open /dev/sdb read-write (Read-only file system).  /dev/sdb has been opened read-only.
Warning: Unable to open /dev/sdb read-write (Read-only file system).  /dev/sdb has been opened read-only.
Error: Can't write to /dev/sdb, because it is opened read-only.
mkfs.fat 4.1 (2017-01-24)
mkfs.vfat: unable to open /dev/sdb1: Read-only file system
 Failed :-( 
  mk_msdos: could not create MSDOS partition table and FAT file system 
Wait 5 seconds and a little more ...
Warning: Unable to open /dev/sdb read-write (Read-only file system).  /dev/sdb has been opened read-only.
Warning: Unable to open /dev/sdb read-write (Read-only file system).  /dev/sdb has been opened read-only.
Model: SanDisk Ultra Fit (scsi)
Disk /dev/sdb: 123GB
Sector size (logical/physical): 512B/512B
Partition Table: gpt
Disk Flags: 

Number  Start   End    Size   File system  Name                  Flags
 1      1049kB  538MB  537MB  fat32        EFI System Partition  boot, esp
 2      538MB   123GB  122GB  ntfs                               msftdata


MODEL     NAME   FSTYPE LABEL
Ultra_Fit sdb           
          ├─sdb1 vfat   
          └─sdb2 ntfs   SanDisk
p_clean:
clean if necessary and quit

相关内容