Hi,
I'm in deep frustration. After `dd if=/dev/null of=/file.iso', I may not mount 
usb-stick. for copying a data (directories) into the stick. I did `fdisk', 
inspect:
----------------
root@debian:~# fdisk -l /dev/sdb

Disk /dev/sdb: 7.4 GiB, 7900845056 bytes, 15431338 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: gpt
Disk identifier: B9CE4505-2CC9-4A28-AFE5-6D007A023AB2

Device        Start      End Sectors  Size Type
/dev/sdb1      2048  4196351 4194304    2G Linux filesystem
/dev/sdb2   4196352  8390655 4194304    2G Linux filesystem
/dev/sdb3   8390656 12584959 4194304    2G Linux filesystem
/dev/sdb4  12584960 15431304 2846345  1.4G Linux filesystem

root@debian:~# 
-------------------
trying:
-----------------
root@debian:~# mount -v  /dev/sdb /mnt
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.
root@debian:~# 
------------------
root@debian:~# dmesg | tail
[  185.804756]  sdc: sdc1 sdc2
[  185.808865] sd 3:0:0:0: [sdc] Attached SCSI removable disk
[  186.401256] ISO 9660 Extensions: Microsoft Joliet Level 3
[  186.404465] ISO 9660 Extensions: Microsoft Joliet Level 3
[  186.443255] ISO 9660 Extensions: RRIP_1991A
[13607.893806] perf interrupt took too long (2501 > 2500), lowering 
kernel.perf_event_max_sample_rate to 50000
[27577.987872]  sdb: sdb1 sdb2 sdb3 sdb4
[27578.241862]  sdb: sdb1 sdb2 sdb3 sdb4
[28133.919005] usb 4-1: USB disconnect, device number 4
[38340.049258]  sdb: sdb1 sdb2 sdb3 sdb4
root@debian:~# 
---------------- 
Prompt, what is need doing, for utilis the usb-stick.
 Thank.


 

gdsi11
gds...@aol.com

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