"Unable to mount ##GB USB Disk" in Debian system

It is because residue of Debian installation via USB Disk.

# dmesg
....
[44585.197601] scsi 13:0:0:0: Direct-Access     General  USB Flash Disk   1100 PQ: 0 ANSI: 0 CCS
[44585.202556] sd 13:0:0:0: [sdb] 7815168 512-byte logical blocks: (4.00 GB/3.72 GiB)
[44585.205944] sd 13:0:0:0: [sdb] Write Protect is off
[44585.205954] sd 13:0:0:0: [sdb] Mode Sense: 43 00 00 00
[44585.209174] sd 13:0:0:0: [sdb] No Caching mode page present
[44585.209186] sd 13:0:0:0: [sdb] Assuming drive cache: write through
[44585.218449] sd 13:0:0:0: [sdb] No Caching mode page present
[44585.218460] sd 13:0:0:0: [sdb] Assuming drive cache: write through
[44585.219993]  sdb: sdb1
[44585.230490] sd 13:0:0:0: [sdb] No Caching mode page present
[44585.230501] sd 13:0:0:0: [sdb] Assuming drive cache: write through
[44585.230514] sd 13:0:0:0: [sdb] Attached SCSI removable disk
[44585.860825] UDF-fs: No VRS found
[44585.860829] UDF-fs: Rescanning with blocksize 2048
[44585.864576] UDF-fs: No VRS found
[44585.864579] UDF-fs: No partition found (1)
[44585.950985] ISOFS: Unable to identify CD-ROM format.
....

The system seems to be attempt to mount USB flash disk as CD-ROM Drive.

To fix it, make CD-ROM drive configuration created by Debian installation into comment  in /etc/fstab.

/etc/fstab
...
# /dev/sdb1       /media/cdrom0   udf,iso9660 user,noauto     0       0
...