Re: [IAEP] Cloning USB sticks
Sascha Silbe wrote: On Tue, Aug 04, 2009 at 03:38:38AM -0700, Thomas C Gilliard wrote: Can I avoid this f I set up the USB to not use all of the available space when I allocate the partition sizes in net install method (see link:) I don't know enough about the Fedora installation process to answer that question (without trying it out myself), sorry. The important point is that there's unallocated _partition_ space left at the _end_ of the device. I.e. don't just leave space inside the LVM or make some overlay file smaller. There mustn't be anything at all in that empty space. or because the dd is bit by bit copy I have to look at each stick first for sizes, as it will not work if stick is just smaller in capacity Can you rephrase, please? ie: The over-riding determining factor is that the copied to USB stick has to have equal or greater capacity than the copied from USB stick for the dd process to be sucessful. * Do you have a suggestion on how to determine the actual size of a USB stick without seeing the error message if the dd command fails? PS: Did you send this privately (instead of over the list) on purpose? No; I just wanted you input on this matter. I wanted to understand it better before posting it. CU Sascha Cordially Tom Gilliard ___ IAEP -- It's An Education Project (not a laptop project!) IAEP@lists.sugarlabs.org http://lists.sugarlabs.org/listinfo/iaep
Re: [IAEP] Cloning USB sticks
On Tue, Aug 04, 2009 at 05:07:31AM -0700, Thomas C Gilliard wrote: ie: The over-riding determining factor is that the copied to USB stick has to have equal or greater capacity than the copied from USB stick for the dd process to be sucessful. Exactly. * Do you have a suggestion on how to determine the actual size of a USB stick without seeing the error message if the dd command fails? On Debian you can install a tool called disktype that can print the size of a device: sascha.si...@twin:~$ disktype /dev/disk/by-id/usb-CHIPSBNK_USB_2.0_260917004B813900-0\:0 --- /dev/disk/by-id/usb-CHIPSBNK_USB_2.0_260917004B813900-0:0 Block device, size 999.5 MiB (1048051712 bytes) [...] Alternatively you can check the kernel logs: sascha.si...@twin:~$ grep sectors /var/log/syslog Aug 4 14:37:47 twin kernel: [202233.115200] sd 8:0:0:0: [sdc] 2046976 512-byte hardware sectors (1048 MB) Depending on distribution and installed syslogger, the file you need to check might be called /var/log/syslog, /var/log/messages, /var/log/everything or similar. CU Sascha -- http://sascha.silbe.org/ http://www.infra-silbe.de/ signature.asc Description: Digital signature ___ IAEP -- It's An Education Project (not a laptop project!) IAEP@lists.sugarlabs.org http://lists.sugarlabs.org/listinfo/iaep
Re: [IAEP] Cloning USB sticks (was: Re: Could a KS file be used in the Fedora11 net install to customize the clone process?)
On Tue, Aug 4, 2009 at 03:03, Sascha Silbe sascha-ml-ui-sugar-i...@silbe.org wrote: [copying USB stick via dd] Sucessfully copies the USB stick! this is an exact copy and boot and runs well. Just a word of caution: Because it's an exact copy, it will duplicate your identity as well if you've ever logged in to Sugar and entered your name before on the source USB stick. You will need to remove some files in ~/.sugar in order for collaboration to work properly in that case. Also, per http://wiki.laptop.org/go/How_to_Damage_a_FLASH_Storage_Device , you may get better milage out of your USB disk if you don't use DD, but rather just copy over the files. -- Luke Faraone http://luke.faraone.cc ___ IAEP -- It's An Education Project (not a laptop project!) IAEP@lists.sugarlabs.org http://lists.sugarlabs.org/listinfo/iaep
Re: [IAEP] Cloning USB sticks: Danger of leaving passwords in clones.
Thank you for the caution;
I use daveb's method to clear /.sugar in all uploads of sugar
rm -rf ~/.sugar
su -
{password}
shutdown -h now
This procedure has to be used on all dd copies of USB
If this is not done, there is a network collision between 2 clones on
same network
The generic passwords used to log in to user: sugar are:
(used in all of my VM Appliances also)
sugar=sugaruser
root=sugarroot
They are used in the USB4C.img I am uploading to sunjammer (as an
experiment)
(in a compressed format)
Note: I have not seen any failures to USB sticks from using dd.
I just did a test of dd writewith a 4GB image made from a Sandisk
Cruzer micro 4GB to a 16 PNY Mini-Attache' stick with no
problems. It booted fine. (The PNY is a much cheaper and slower stick so
I thought this was a good test)
Tom Gilliard
satellit
Luke Faraone wrote:
On Tue, Aug 4, 2009 at 03:03, Sascha Silbe
sascha-ml-ui-sugar-i...@silbe.org wrote:
[copying USB stick via dd]
Sucessfully copies the USB stick! this is an exact copy and boot and runs
well.
Just a word of caution: Because it's an exact copy, it will duplicate your
identity as well if you've ever logged in to Sugar and entered your name
before on the source USB stick. You will need to remove some files in
~/.sugar in order for collaboration to work properly in that case.
Also, per http://wiki.laptop.org/go/How_to_Damage_a_FLASH_Storage_Device ,
you may get better milage out of your USB disk if you don't use DD, but
rather just copy over the files.
___
IAEP -- It's An Education Project (not a laptop project!)
IAEP@lists.sugarlabs.org
http://lists.sugarlabs.org/listinfo/iaep
Re: [IAEP] Cloning USB sticks: Danger of leaving passwords in clones.
On Tue, Aug 04, 2009 at 10:39:31AM -0700, Thomas C Gilliard wrote: This procedure has to be used on all dd copies of USB You can also do it on the master stick before doing the dd if there's no data in the Journal you want to preserve. Note: I have not seen any failures to USB sticks from using dd. The failures Luke mentioned are due to aging (that may happen prematurely if the formatting doesn't match your stick well enough), not during the copy. PS: Thanks for your work on this! :-| CU Sascha -- http://sascha.silbe.org/ http://www.infra-silbe.de/ signature.asc Description: Digital signature ___ IAEP -- It's An Education Project (not a laptop project!) IAEP@lists.sugarlabs.org http://lists.sugarlabs.org/listinfo/iaep
Re: [IAEP] Cloning USB sticks Re: How to damage a Flash strorage Device
I see that the LVM file structure used in F11 is not addressed in the wiki reference. I am attaching a screen shot of the structure of one of the sticks FYI. Are we any better in using live-cd creator for USB creation in Strawberry.? Is the compressed fs safer to use? I do not know how to predict what will happen other than see how long the USB Sticks last. The file structure may be more stable vs all writes going to the overlay in strawberry, but that will be determined I guess in field testing. Cordially Tom Gilliard satellit Luke Faraone wrote: On Tue, Aug 4, 2009 at 03:03, Sascha Silbe sascha-ml-ui-sugar-i...@silbe.org wrote: [copying USB stick via dd] Sucessfully copies the USB stick! this is an exact copy and boot and runs well. Just a word of caution: Because it's an exact copy, it will duplicate your identity as well if you've ever logged in to Sugar and entered your name before on the source USB stick. You will need to remove some files in ~/.sugar in order for collaboration to work properly in that case. Also, per http://wiki.laptop.org/go/How_to_Damage_a_FLASH_Storage_Device , you may get better milage out of your USB disk if you don't use DD, but rather just copy over the files. inline: Screenshot--dev-sdg - GParted.png___ IAEP -- It's An Education Project (not a laptop project!) IAEP@lists.sugarlabs.org http://lists.sugarlabs.org/listinfo/iaep
