undetected usb

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hhbuur

undetected usb

Post by hhbuur »

I have a usb memory plug that will not be mounted, the program Disks shows that there are sdb1 4gb and so dos the terminal.
i created a file i /media/usbstick/, and then tried to mount the usb, I tried slightly different commands, making me believe there is a supper block that is corrupt
Are there any suggestions for what I do wrong?.

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$ lsblk
NAME                MAJ:MIN RM   SIZE RO TYPE MOUNTPOINT
sdb                   8:16   1   3.8G  0 disk 
└─sdb1                8:17   1   3.7G  0 part 
sr0                  11:0    1  1024M  0 rom  
sda                   8:0    0 465.8G  0 disk 
├─sda2                8:2    0     1K  0 part 
├─sda5                8:5    0 465.3G  0 part 
│ ├─mint--vg-swap_1 253:1    0   7.6G  0 lvm  [SWAP]
│ └─mint--vg-root   253:0    0 457.7G  0 lvm  /
└─sda1                8:1    0   487M  0 part /boot

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$ sudo mount -t /dev/sdb1 /media/usbstick/
mount: can't find /media/usbstick/ in /etc/fstab
[code]

[code]$ sudo fsck /dev/sdb1
fsck from util-linux 2.27.1
e2fsck 1.42.13 (17-May-2015)
ext2fs_open2: Bad magic number in super-block
fsck.ext2: Superblock invalid, trying backup blocks...
fsck.ext2: Bad magic number in super-block while trying to open /dev/sdb1

The superblock could not be read or does not describe a valid ext2/ext3/ext4
filesystem.  If the device is valid and it really contains an ext2/ext3/ext4
filesystem (and not swap or ufs or something else), then the superblock
is corrupt, and you might try running e2fsck with an alternate superblock:
    e2fsck -b 8193 <device>
 or
    e2fsck -b 32768 <device>

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 $ sudo e2fsck -b 8193 /dev/sdb1
e2fsck 1.42.13 (17-May-2015)
e2fsck: Bad magic number in super-block while trying to open /dev/sdb1

The superblock could not be read or does not describe a valid ext2/ext3/ext4
filesystem.  If the device is valid and it really contains an ext2/ext3/ext4
filesystem (and not swap or ufs or something else), then the superblock
is corrupt, and you might try running e2fsck with an alternate superblock:
    e2fsck -b 8193 <device>
 or
    e2fsck -b 32768 <device>

Code: Select all

 ~ $ sudo mount -t /dev/sdb1 /media/usbstick/
mount: can't find /media/usbstick/ in /etc/fstab
Last edited by LockBot on Wed Dec 28, 2022 7:16 am, edited 1 time in total.
Reason: Topic automatically closed 6 months after creation. New replies are no longer allowed.
hhbuur

Re: undetected usb

Post by hhbuur »

i haw some update info, but still do not understand what there is wrong.

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lshw | less

 *-usb
                   description: Mass storage device
                   product: STORE N GO
                   vendor: Verbatim
                   physical id: 2
                   bus info: usb@3:2
                   logical name: scsi6
                   version: 1.00
                   serial: 07A30109B21BB94E
                   capabilities: usb-2.00 scsi emulated scsi-host
                   configuration: driver=usb-storage maxpower=200mA speed=480Mbit/s
                 *-disk
                      description: SCSI Disk
                      physical id: 0.0.0
                      bus info: scsi@6:0.0.0
                      logical name: /dev/sdb
                      size: 3822MiB (4007MB)
                      configuration: logicalsectorsize=512 sectorsize=512

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~ # mount -t vfat /dev/sdb /media/usbstick 
mount: wrong fs type, bad option, bad superblock on /dev/sdb,
       missing codepage or helper program, or other error

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

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 ~ # dmesg | tail
[ 2009.609133] scsi 6:0:0:0: Direct-Access     Verbatim STORE N GO       PMAP PQ: 0 ANSI: 0 CCS
[ 2009.609903] sd 6:0:0:0: Attached scsi generic sg2 type 0
[ 2009.979572] sd 6:0:0:0: [sdb] 7827456 512-byte logical blocks: (4.01 GB/3.73 GiB)
[ 2009.981536] sd 6:0:0:0: [sdb] Write Protect is off
[ 2009.981542] sd 6:0:0:0: [sdb] Mode Sense: 03 41 00 00
[ 2009.983443] sd 6:0:0:0: [sdb] No Caching mode page found
[ 2009.983453] sd 6:0:0:0: [sdb] Assuming drive cache: write through
[ 2010.014950] sd 6:0:0:0: [sdb] Attached SCSI removable disk
[ 2015.971509] FAT-fs (sdb): invalid media value (0x20)
[ 2015.971540] FAT-fs (sdb): Can't find a valid FAT filesystem

Mute Ant

Re: undetected usb

Post by Mute Ant »

If a removable drive has a recognised file-system, your file manager can mount it. That's what you try first, to avoid permissions problems with NTFS and VFAT pretending to belong to user root.

Manually mounting it, you can let Linux guess the type...
sudo mount /dev/sdb1 $HOME/Public
...or get the command exactly right...
sudo mount -t vfat /dev/sdb1 $HOME/Public
gm10

Re: undetected usb

Post by gm10 »

hhbuur wrote: Sun Jul 01, 2018 9:20 am I have a usb memory plug that will not be mounted, the program Disks shows that there are sdb1 4gb and so dos the terminal.
You can mount it from Disks then (just click on the triangle). If necessary, create a partition first and format it.
hhbuur

Re: undetected usb

Post by hhbuur »

the answer i get is. any suggestion?

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~ $ sudo mount -t vfat /dev/sdb $HOME/Public
mount: wrong fs type, bad option, bad superblock on /dev/sdb,
       missing codepage or helper program, or other error

       In some cases useful info is found in syslog - try
       dmesg | tail or so.
       
       
~ $ sudo mount -t NTFS /dev/sdb $HOME/Public
mount: unknown filesystem type 'NTFS'
gm10

Re: undetected usb

Post by gm10 »

hhbuur wrote: Sat Aug 18, 2018 8:26 am the answer i get is. any suggestion?
Yes, either @Mute Ant's or my posts right above yours. ;)
hhbuur

Re: undetected usb

Post by hhbuur »

haw do i verify a link to my google drive
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