U3-Enabled USB Storage Devices - Revision history

Jeremy: /* Listing files inside the ISO image */

2025-09-05T17:40:02Z

Listing files inside the ISO image

← Older revision		Revision as of 17:40, 5 September 2025
Line 329:		Line 329:

	...		...

			==Test booting from the CD device==
			You can use QEMU to create a VM that boots from the ISO (if it is a bootable image):

			qemu-system-x86_64 -m 1G -cpu host --enable-kvm -boot d -cdrom /dev/sr0

Jeremy: /* U3 Devices: USB Storage thumb drives that can emulate CD-ROM devices */

2025-09-05T17:37:56Z

U3 Devices: USB Storage thumb drives that can emulate CD-ROM devices

← Older revision		Revision as of 17:37, 5 September 2025
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	=U3 Devices: USB Storage thumb drives that can emulate CD-ROM devices=		=U3 Devices: USB Storage thumb drives that can emulate CD-ROM devices=

			A U3 flash drive presents itself to the host system as a USB hub with a CD drive and standard USB mass storage device attached.<br>
			[https://en.wikipedia.org/wiki/U3_(software) https://en.wikipedia.org/wiki/U3_(software)]

	==General==		==General==
	Tool: u3-tool <https://sourceforge.net/projects/u3-tool/>		Tool: u3-tool <https://sourceforge.net/projects/u3-tool/>



	===u3-tool package info===		===u3-tool package info===

Jeremy: /* Adding a CD image */

2025-09-05T17:36:41Z

Adding a CD image

← Older revision		Revision as of 17:36, 5 September 2025
Line 202:		Line 202:
	\|**************************************************\| 100%		\|**************************************************\| 100%
	OK		OK


			==Getting CD Information==

			jeremy@desktop ~ $ blkid /dev/sr0

			/dev/sr0: UUID="2020-08-18-04-59-21-00" LABEL="UBCD539" TYPE="iso9660"

			And:

			jeremy@desktop ~ $ cd-drive

			cd-drive version 2.0.0 x86_64-pc-linux-gnu
			Copyright (c) 2003-2005, 2007-2008, 2011-2015, 2017 R. Bernstein
			This is free software; see the source for copying conditions.
			There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A
			PARTICULAR PURPOSE.
			The driver selected is GNU/Linux
			The default device for this driver is /dev/cdrom

			Drivers available...
			GNU/Linux ioctl and MMC driver
			cdrdao (TOC) disk image driver
			bin/cuesheet disk image driver
			Nero NRG disk image driver

			CD-ROM drive supports some nonstandard or degenerate set of MMC

			Drive: /dev/cdrom
			Vendor : SanDisk
			Model : U3 Cruzer Micro
			Revision : 8.02
			Profile List Feature

			Core Feature

			Vendor-specific code 200 Feature

			Removable Medium Feature
			Tray type loading mechanism
			can eject the medium or magazine via the normal START/STOP command
			can be locked into the Logical Unit

			Random Readable Feature

			CD Read Feature
			C2 Error pointers are not supported
			CD-Text is not supported

			Initiator- and Device-directed Power Management Feature

			Ability to respond to all commands within a specific time Feature

			Hardware : CD-ROM or DVD
			Can eject : No
			Can close tray : No
			Can disable manual eject : No
			Can select juke-box disc : No

			Can set drive speed : No
			Can read multiple sessions (e.g. PhotoCD) : No
			Can hard reset device : No

			Reading....
			Can read Mode 2 Form 1 : No
			Can read Mode 2 Form 2 : No
			Can read (S)VCD (i.e. Mode 2 Form 1/2) : No
			Can read C2 Errors : No
			Can read IRSC : No
			Can read Media Channel Number (or UPC) : No
			Can play audio : No
			Can read CD-DA : No
			Can read CD-R : No
			Can read CD-RW : No
			Can read DVD-ROM : No

			Writing....
			Can write CD-RW : No
			Can write DVD-R : No
			Can write DVD-RAM : No
			Can write DVD-RW : No
			Can write DVD+RW : No

			==Getting ISO Information==

			jeremy@desktop ~ $ iso-info /dev/sr0

			iso-info version 2.0.0 x86_64-pc-linux-gnu
			Copyright (c) 2003-2005, 2007-2008, 2011-2015, 2017 R. Bernstein
			This is free software; see the source for copying conditions.
			There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A
			PARTICULAR PURPOSE.
			__________________________________
			ISO 9660 image: /dev/sr0
			Application : GENISOIMAGE ISO 9660_HFS FILESYSTEM CREATOR (C) 1993 E.YOUNGDALE
			System : LINUX
			Volume : UBCD539
			Joliet Level: 3

			==Listing files inside the ISO image==

			jeremy@desktop ~ $ iso-info /dev/sr0 -l \| head -n 40

			iso-info version 2.0.0 x86_64-pc-linux-gnu
			Copyright (c) 2003-2005, 2007-2008, 2011-2015, 2017 R. Bernstein
			This is free software; see the source for copying conditions.
			There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A
			PARTICULAR PURPOSE.
			__________________________________
			ISO 9660 image: /dev/sr0
			Application : GENISOIMAGE ISO 9660_HFS FILESYSTEM CREATOR (C) 1993 E.YOUNGDALE
			System : LINUX
			Volume : UBCD539
			Joliet Level: 3
			__________________________________
			ISO-9660 Information
			/:
			d [LSN 94] 2048 Nov 11 2014 21:04:57 .
			d [LSN 94] 2048 Aug 17 2020 23:59:21 ..
			- [LSN 165] 76 Apr 27 2011 08:33:19 autorun.inf
			d [LSN 95] 2048 Nov 11 2014 21:04:51 boot
			- [LSN 166] 3158 Apr 18 2008 01:22:37 license.txt
			d [LSN 140] 2048 Aug 16 2020 20:27:15 pmagic
			d [LSN 98] 2048 Nov 11 2014 21:05:03 ubcd

			...

Jeremy: /* Getting device info (via SMART) */

2025-09-05T17:19:00Z

Getting device info (via SMART)

← Older revision		Revision as of 17:19, 5 September 2025
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			==Getting device info (via lsblk)==

			jeremy@desktop ~ $ lsblk -o name,path,pttype,fstype,label,vendor,model,serial,uuid /dev/sdb

			NAME PATH PTTYPE FSTYPE LABEL VENDOR MODEL SERIAL UUID
			sdb /dev/sdb dos SanDisk U3_Cruzer_Micro 0877630F3011E8CD
			└─sdb1 /dev/sdb1 dos vfat MY-U3DEVICE F327-C68D

	==Getting device info (via SMART)==		==Getting device info (via SMART)==
Line 62:		Line 70:
	>> Terminate command early due to bad response to IEC mode page		>> Terminate command early due to bad response to IEC mode page
	A mandatory SMART command failed: exiting. To continue, add one or more '-T permissive' options.		A mandatory SMART command failed: exiting. To continue, add one or more '-T permissive' options.



	==u3-tool program==		==u3-tool program==

Jeremy at 16:44, 5 September 2025

2025-09-05T16:44:35Z

← Older revision		Revision as of 16:44, 5 September 2025
Line 104:		Line 104:
	Detailed:		Detailed:

	jeremy@desktop $ u3-tool -D /dev/sdb		jeremy@desktop ~ $ u3-tool -D /dev/sdb

	Partition info:		Partition info:
Line 140:		Line 140:


	jeremy@desktop $ sudo u3-tool -p 0 /dev/sdb		jeremy@desktop ~ $ sudo u3-tool -p 0 /dev/sdb

	WARNING: Loading a new cd image causes the whole device to be wiped. This INCLUDES		WARNING: Loading a new cd image causes the whole device to be wiped. This INCLUDES
Line 149:		Line 149:


	jeremy@desktop $ u3-tool -i /dev/sdb		jeremy@desktop ~ $ sudo u3-tool -i /dev/sdb
	Total device size: 3.77 GB (4051697664 bytes)		Total device size: 3.77 GB (4051697664 bytes)
	CD size: 0.00 B (0 bytes)		CD size: 0.00 B (0 bytes)
Line 160:		Line 160:
	Get the ISO size:		Get the ISO size:

	jeremy@desktop $ stat ubcd539.iso		jeremy@desktop ~ $ stat ubcd539.iso

	File: ubcd539.iso		File: ubcd539.iso
Line 174:		Line 174:
	Set the U3 ISO size:		Set the U3 ISO size:

	jeremy@desktop $ sudo u3-tool -p 842489856 /dev/sdb		jeremy@desktop ~ $ sudo u3-tool -p 842489856 /dev/sdb

	WARNING: Loading a new cd image causes the whole device to be wiped. This INCLUDES		WARNING: Loading a new cd image causes the whole device to be wiped. This INCLUDES
Line 184:		Line 184:
	Get info:		Get info:

	jeremy@desktop $ u3-tool -i /dev/sdb		jeremy@desktop ~ $ sudo u3-tool -i /dev/sdb

	Total device size: 3.77 GB (4051697664 bytes)		Total device size: 3.77 GB (4051697664 bytes)
Line 192:		Line 192:
	Load the ISO (takes a loooong time):		Load the ISO (takes a loooong time):

	jeremy@desktop $ sudo u3-tool -l ubcd539.iso /dev/sdb		jeremy@desktop ~ $ sudo u3-tool -l ubcd539.iso /dev/sdb

	\|**************************************************\| 100%		\|**************************************************\| 100%
	OK		OK

Jeremy: /* Adding a CD image */

2025-09-05T16:42:57Z

Adding a CD image

← Older revision		Revision as of 16:42, 5 September 2025
Line 190:		Line 190:
	Data partition size: 2.99 GB (3209166848 bytes)		Data partition size: 2.99 GB (3209166848 bytes)

	Load the ISO (takes a ~~long~~ time):		Load the ISO (takes a loooong time):

	jeremy@desktop $ sudo u3-tool -l ubcd539.iso /dev/sdb		jeremy@desktop $ sudo u3-tool -l ubcd539.iso /dev/sdb

	\|************* \| 26%		\|**************************************************\| 100%
			OK

Jeremy at 16:29, 5 September 2025

2025-09-05T16:29:49Z

← Older revision		Revision as of 16:29, 5 September 2025
Line 1:		Line 1:
	=USB Storage thumb drives that can emulate CD-ROM devices=		=U3 Devices: USB Storage thumb drives that can emulate CD-ROM devices=

	==General==		==General==

Jeremy: Created page with "=USB Storage thumb drives that can emulate CD-ROM devices= ==General== Tool: u3-tool ===u3-tool package info=== jeremy@desktop ~ $ aptitude show u3-tool Package: u3-tool Version: 0.3-3 State: installed Automatically installed: no Priority: optional Section: universe/utils Maintainer: Ubuntu Developers Architecture: amd64 Uncompressed Size: 54.3 k..."

2025-09-05T16:29:25Z

Created page with "=USB Storage thumb drives that can emulate CD-ROM devices= ==General== Tool: u3-tool <https://sourceforge.net/projects/u3-tool/> ===u3-tool package info=== jeremy@desktop ~ $ aptitude show u3-tool Package: u3-tool Version: 0.3-3 State: installed Automatically installed: no Priority: optional Section: universe/utils Maintainer: Ubuntu Developers <ubuntu-devel-discuss@lists.ubuntu.com> Architecture: amd64 Uncompressed Size: 54.3 k..."

New page

=USB Storage thumb drives that can emulate CD-ROM devices=

==General==
Tool: u3-tool <https://sourceforge.net/projects/u3-tool/>

===u3-tool package info===

jeremy@desktop ~ $ aptitude show u3-tool

Package: u3-tool
Version: 0.3-3
State: installed
Automatically installed: no
Priority: optional
Section: universe/utils
Maintainer: Ubuntu Developers <ubuntu-devel-discuss@lists.ubuntu.com>
Architecture: amd64
Uncompressed Size: 54.3 k
Depends: libc6 (>= 2.4)
Description: tool for controlling the special features of a U3 USB flash disk
Tool for controlling USB flash devices that conform to the U3 specifications. You can do the following with your U3 flash:
* Replace the CD image
* Change the size of the virtual CD or completely remove it
* Enable and disable security
* Unlock and change the password of secured U3 device
* Obtain various device information
Homepage: https://sourceforge.net/projects/u3-tool/

==Getting device info (via SMART)==

jeremy@desktop ~ $ sudo smartctl -d scsi -i /dev/sdb

smartctl 7.1 2019-12-30 r5022 [x86_64-linux-5.4.0-193-generic] (local build)
Copyright (C) 2002-19, Bruce Allen, Christian Franke, www.smartmontools.org

=== START OF INFORMATION SECTION ===
Vendor: SanDisk
Product: U3 Cruzer Micro
Revision: 8.02
User Capacity: 3,971,677,696 bytes [3.97 GB]
Logical block size: 512 bytes
>> Terminate command early due to bad response to IEC mode page
A mandatory SMART command failed: exiting. To continue, add one or more '-T permissive' options.

or:

jeremy@desktop ~ $ sudo smartctl -d sat,auto -i /dev/sdb

smartctl 7.1 2019-12-30 r5022 [x86_64-linux-5.4.0-193-generic] (local build)
Copyright (C) 2002-19, Bruce Allen, Christian Franke, www.smartmontools.org

=== START OF INFORMATION SECTION ===
Vendor: SanDisk
Product: U3 Cruzer Micro
Revision: 8.02
User Capacity: 3,971,677,696 bytes [3.97 GB]
Logical block size: 512 bytes
>> Terminate command early due to bad response to IEC mode page
A mandatory SMART command failed: exiting. To continue, add one or more '-T permissive' options.

==u3-tool program==

jeremy@desktop ~ $ u3-tool -h

u3-tool 0.3 - U3 USB stick manager

Usage: u3-tool [options] <device name>

Options:
-c Change password
-d Disable device security
-D Dump all raw info(for debug)
-e Enable device security
-h Print this help message
-i Display device info
-l <cd image> Load CD image into device
-p <cd size> Repartition device
-R Reset device security, destroying private data
-u Unlock device
-v Use verbose output
-V Print version information

For the device name use:
'/dev/sda0', '/dev/sg3'

==Getting u3 device info==

Basic:

jeremy@desktop ~ $ sudo u3-tool -i /dev/sdb

Total device size: 3.77 GB (4051697664 bytes)
CD size: 76.31 MB (80019456 bytes)
Data partition size: 3.70 GB (3971678208 bytes)

Detailed:

jeremy@desktop $ u3-tool -D /dev/sdb

Partition info:
- Partition count: 0x02
- Data partition size: 3971678208 byte(0x00765d80)
- Unknown1: 0x00000002
- CD size: 80019456 byte(0x00026280)
- Unknown2: 0x00000103

Data partition info:
- Data partition size: 3971678208 byte(0x00765d80)
- Secured zone size: 0 byte(0x00000000)
- Unlocked: 0x00000000
- Password try: 0x00000000

Chip info:
- Manufacturer: SanDisk
- Revision: 80200010

Property page 0x03:
- Device size: 4051697664 byte(0x0078c000)
- Device serial: 0877630F3011E8CD
- Full record length: 0x00000077
- Unknown1: 0x0b
- Unknown2: 0x54060781
- Unknown3: 0x54060781

Property page 0x0C:
- Max. pass. try: 5

==Removing CD image - use all space for USB FLASH STORAGE==

jeremy@desktop $ sudo u3-tool -p 0 /dev/sdb

WARNING: Loading a new cd image causes the whole device to be wiped. This INCLUDES
the data partition.
I repeat: ANY EXISTING DATA WILL BE LOST!

Are you sure you want to continue? [yn] y

jeremy@desktop $ u3-tool -i /dev/sdb
Total device size: 3.77 GB (4051697664 bytes)
CD size: 0.00 B (0 bytes)
Data partition size: 3.77 GB (4051697664 bytes)

==Adding a CD image==

Get the ISO size:

jeremy@desktop $ stat ubcd539.iso

File: ubcd539.iso
Size: 842489856 Blocks: 1638402 IO Block: 131072 regular file
Device: 3bh/59d Inode: 1718238 Links: 1
Access: (0664/-rw-rw-r--) Uid: ( 1000/ jeremy) Gid: ( 1000/ jeremy)
Access: 2025-09-05 10:53:48.997794508 -0500
Modify: 2025-09-05 11:01:51.577078347 -0500
Change: 2025-09-05 11:01:52.333077223 -0500
Birth: -

Set the U3 ISO size:

jeremy@desktop $ sudo u3-tool -p 842489856 /dev/sdb

WARNING: Loading a new cd image causes the whole device to be wiped. This INCLUDES
the data partition.
I repeat: ANY EXISTING DATA WILL BE LOST!

Are you sure you want to continue? [yn] y

Get info:

jeremy@desktop $ u3-tool -i /dev/sdb

Total device size: 3.77 GB (4051697664 bytes)
CD size: 803.50 MB (842530816 bytes)
Data partition size: 2.99 GB (3209166848 bytes)

Load the ISO (takes a long time):

jeremy@desktop $ sudo u3-tool -l ubcd539.iso /dev/sdb

|************* | 26%