[tor-talk] USB Sticks for TAILS

[Moritz Bartl]

Hi,

I know there is a dedicated mailinglist for TAILS, but I figured I would
reach a larger audience here, and it might be of interest to many who
are not subscribed to the TAILS list.

Ideally, you use TAILS from a read-only medium. CD is best, but many
devices these days don't have an optical drive, and handling CDs is not
as convenient as a USB stick.

For quite some time, people kept recommending the TrekStor CS USB stick
[ https://geizhals.de/trekstor-cs-8gb-50324-a240853.html ], one of the
few sticks available in Germany with write-protection switch. Turns out
they use a new firmware, and now don't support booting from it in
read-only mode. The company confirmed this via email.

There are roughly no alternatives, and I figured I'm not the only one
looking for USB sticks with write protection switch. Via alibaba.com, a
"wholesale Chinese ebay", I contacted various Chinese suppliers, and
ended up ordering two samples. Even there, the selection of sticks with
write protection is very limited.

I ended up paying paying 60€ for the 2 samples because of shipping and
Western Union fees.

The sticks are not very fast, but acceptable, and boot in read-only
mode. They are not as slim as I hoped for, but the supplier is friendly,
production and shipping was very fast. (less than 2 weeks altogether).

Logo printing is cheap ($0.15 per stick), so to try the quality I also
had them print a logo on the samples.

I am still undecided whether I want the final sticks to have a logo, or
simply be blank to not attract too much attention. If you have a nice
idea for a logo, let me know. I want to order 100 sticks in time for
Chaos Communication Congress 30C3. The production cost is $4 per stick
(8GB), the final price (taxes, GEMA, shipping) will likely be around $15.

Pictures: http://share.pho.to/48Egt

# dmesg

[55679.884123] usb 2-1.2: new high-speed USB device number 5 using ehci_hcd
[55680.051089] usb 2-1.2: New USB device found, idVendor=058f,
idProduct=6387
[55680.051092] usb 2-1.2: New USB device strings: Mfr=1, Product=2,
SerialNumber=3
[55680.051094] usb 2-1.2: Product: Mass Storage
[55680.051095] usb 2-1.2: Manufacturer: Generic
[55680.051096] usb 2-1.2: SerialNumber: B6BA8F3F
[55680.051459] scsi9 : usb-storage 2-1.2:1.0
[55681.051827] scsi 9:0:0:0: Direct-Access     Generic  Flash Disk
 8.07 PQ: 0 ANSI: 4
[55681.053860] sd 9:0:0:0: Attached scsi generic sg1 type 0
[55681.055544] sd 9:0:0:0: [sdb] 15937536 512-byte logical blocks: (8.16
GB/7.59 GiB)
[55681.056665] sd 9:0:0:0: [sdb] Write Protect is off
[55681.056676] sd 9:0:0:0: [sdb] Mode Sense: 23 00 00 00
[55681.057742] sd 9:0:0:0: [sdb] Write cache: disabled, read cache:
enabled, doesn't support DPO or FUA
[55681.176618]  sdb: sdb1
[55681.179808] sd 9:0:0:0: [sdb] Attached SCSI removable disk

# hdparm -t /dev/sdb

/dev/sdb:
 Timing buffered disk reads:  54 MB in  3.07 seconds =  17.60 MB/sec

# dd if=tails-i386-0.21.iso of=/dev/sdb bs=1M
891+1 records in
891+1 records out
934471680 bytes (934 MB) copied, 170.058 s, 5.5 MB/s

-- 
Moritz Bartl
https://www.torservers.net/
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