LinuxQuestions.org - mount usb HD

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I have a USB external HD has plug to the linux server , I tried mount /dev/sda1 /mountpoint but pop the error .

mount: /dev/sda1 : No such file or directory

I don't know why pop the error, can advise how can I mount ?

Thanks.

Can you post the exact command you used to mount, please? Are you sure you're using the correct device? Also, does the mount point exist?

Well. You obviously use incorrect device filename. Check dmesg immediately after you plug your external HD in to find correct device filename.
E.g.

Code:

[ 4006.427334] sd 2:0:0:0: Attached scsi generic sg2 type 0

[ 4008.416458] sd 2:0:0:0: [sdb] 3903488 512-byte logical blocks: (1.99 GB/1.86 GiB)

[ 4008.419445] sd 2:0:0:0: [sdb] Write Protect is off

[ 4008.419452] sd 2:0:0:0: [sdb] Mode Sense: 23 00 00 00

[ 4008.425443] sd 2:0:0:0: [sdb] No Caching mode page present

[ 4008.425451] sd 2:0:0:0: [sdb] Assuming drive cache: write through

[ 4008.444442] sd 2:0:0:0: [sdb] No Caching mode page present

[ 4008.444450] sd 2:0:0:0: [sdb] Assuming drive cache: write through

[ 4008.450522]  sdb: sdb1

[ 4008.468444] sd 2:0:0:0: [sdb] No Caching mode page present

[ 4008.468453] sd 2:0:0:0: [sdb] Assuming drive cache: write through

[ 4008.468459] sd 2:0:0:0: [sdb] Attached SCSI removable disk

This is output of dmesg after I plug my flash drive in. It shows, that device filename of my drive is /dev/sdb1

Quote:

Originally Posted by Samotnik (Post 4463098)

Well. You obviously use incorrect device filename. Check dmesg immediately after you plug your external HD in to find correct device filename.
E.g.

Code:

[ 4006.427334] sd 2:0:0:0: Attached scsi generic sg2 type 0

[ 4008.416458] sd 2:0:0:0: [sdb] 3903488 512-byte logical blocks: (1.99 GB/1.86 GiB)

[ 4008.419445] sd 2:0:0:0: [sdb] Write Protect is off

[ 4008.419452] sd 2:0:0:0: [sdb] Mode Sense: 23 00 00 00

[ 4008.425443] sd 2:0:0:0: [sdb] No Caching mode page present

[ 4008.425451] sd 2:0:0:0: [sdb] Assuming drive cache: write through

[ 4008.444442] sd 2:0:0:0: [sdb] No Caching mode page present

[ 4008.444450] sd 2:0:0:0: [sdb] Assuming drive cache: write through

[ 4008.450522]  sdb: sdb1

[ 4008.468444] sd 2:0:0:0: [sdb] No Caching mode page present

[ 4008.468453] sd 2:0:0:0: [sdb] Assuming drive cache: write through

[ 4008.468459] sd 2:0:0:0: [sdb] Attached SCSI removable disk

This is output of dmesg after I plug my flash drive in. It shows, that device filename of my drive is /dev/sdb1

thx ,

I didn't find sda , sdb...etc in /dev , the usb drive should be use device sd* ?

I just found the below message in dmesg

umass0: detached
umass1: at uhub0 port 2 (addr 3) disconnected

*Sigh*. Could you post the last 10 or so lines from dmesg, after plugging the device in?