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image-usb-stick's Introduction

image-usb-stick is a command line tool that safely images USB devices

It supports OS X and Linux currently. Without options, the tool runs in an
interactive mode. The tool will also only allow imaging of actual external
USB storage devices, preventing accidental data loss on internal devices,
a problem often encountered when using lower level tools like dd.

The tool will also offer to unmount any mounted partitions on the target
device.

During the imaging process, useful feedback is presented to the user:

  - Percentage complete
  - Elapsed time
  - A visual progress bar
  - Estimated time remaining

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image-usb-stick's Issues

SD Cards under OSX aren't supported

I'm unable to install onto an SD Card:

$ ./image-usb-stick ../GNOME_3.x86_64-0.0.3-Build1.1.iso 
Loading disks...
No devices found.

The problem is that the OsxDisk.is_valid() check is too stringent and rejects the SD Card.

Disk Utility information for the SD Card:

$ diskutil info /dev/disk3
   Device Identifier:        disk3
   Device Node:              /dev/disk3
   Part Of Whole:            disk3
   Device / Media Name:      APPLE SD Card Reader Media

   Volume Name:              
   Escaped with Unicode:     

   Mounted:                  No

   File System:              None

   Partition Type:           None
   Bootable:                 Not bootable
   Media Type:               Generic
   Protocol:                 USB
   SMART Status:             Not Supported

   Total Size:               4.1 GB (4075290624 Bytes) (exactly 7959552 512-Byte-Blocks)
   Volume Free Space:        Not Applicable

   Read-Only Media:          No
   Read-Only Volume:         Not applicable (no filesystem)
   Ejectable:                Yes

   Whole:                    Yes
   Internal:                 Yes
   OS 9 Drivers:             No
   Low Level Format:         Not Supported

Patch to fix:

$ diff -u image-usb-stick.bk image-usb-stick
--- image-usb-stick.bk  2011-02-07 16:49:57.000000000 -0500
+++ image-usb-stick 2011-02-07 16:55:07.000000000 -0500
@@ -150,7 +150,7 @@
            self.attrs['read_only_media'] == 'No' and \
            self.attrs['ejectable'] == 'Yes' and \
            self.attrs['whole'] == 'Yes' and \
-           self.attrs['internal'] == 'No'
+           (self.attrs['internal'] == 'No' or self.attrs['device_media_name'] == 'APPLE SD Card Reader Media')

    def unmount (self):
        import subprocess

Wrong progress bar?

I'm using your tool to write some SUSE Studio generated .raw files.
The only issue i can see is the the progress/percentage indicator is full after less than 1 minute and i suppose it shows only the time elapsed for formatting the USB stick.

Selected: USB_Flash_Disk (/dev/sdc) - 4 GB

WARNING: imaging /dev/sdc may result in data loss! Continue? [Y/N]: Y
100% 0:00:39 [================================================] ETA 0:00:00

Use rdisk# instead of disk# on Mac OS X

Suggest you tweak the script to use /dev/rdisk# instead of /dev/disk# as rdisk is MUCH faster when using dd. dd a 700mb to /dev/rdisk1 (with bs=1m) image takes about a minute, but with /dev/disk1 it takes a good 15 minutes.

Cheers.

Tag a stable version?

We have a request to package this in Homebrew: Homebrew/legacy-homebrew#14018

Would it be possible to tag a stable version? Doesn't need to be "1.0" or anything, just any version number so we get a "real tarball".

If not, let me know, so I can pass on the request until this software is considered stable. Thanks.

Syntax error

Hi, I found a syntax error in your source code

image-usb-stick|262 col 13 error| Missing parentheses in call to 'print'`

USB stick not recognized using OSX 10.5

I tried to use the program to write to my USB stick using OSX 10.5, but the program reported No devices Found.

I resolved the issue by changing some of the tests on the diskutil output
read_only_media is called read_only:
Read Only: No

The media size has the unit B instead of Bytes:
Total Size: 1002.2 Mi (1050934784 B) (2052607 512-byte blocks)

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