OT: How to split the ubuntu-studio iso file

Gustin Johnson gustin at echostar.ca
Sat May 3 20:19:12 BST 2008 

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Just get 7zip.  You can run the console based version right off the
flash drive without installing it.  It can create volumes of a user
specified size.  The other option is to install cygwin into a flash
drive (or usb hd) which can give you access to some of these handy gnu
tools at the cost of a lot of space (fat32 is not at all efficient at
storing a bunch of small files, so a cygwin install uses more space than
it needs to because of fat32 limitations).

The advantage of 7zip is that it is cross platform, free as in libre as
well as beer.

If you can afford it, a 2.5" usb hd that is powered from the usb port is
a good idea.  I use mine almost everyday (even better you can store
vmware player or qemu on it and run a linux VM from your flash drive
without modifying the host OS).  Of course 80+ GB of storage in a small
form factor is handy too.

Hth,

Christopher Stamper wrote:
| Thanks Sean. Very good ideas.
|
| Trouble with that is, I'm not actually allowed to reboot the pc.
| Technically, I['m not even allowed to use a flash drive, but everyone
| does, and the librarians have no problems with it.
|
| But it's right next to their desk, and they would be sure to notice if I
| did that. And I'd also get in trouble for circumventing their time and
| user control system.
|
| Not worth it. I think I'll just use my PowerIso thing. :-)
|
| If you're wondering why I haven't done it yet, it's because M$ delayed
| the XP SP3 release because of some huge problem. Figures, huh?
|
| On Thu, May 1, 2008 at 3:57 PM, Sean Darby <sean at seandarby.com
| <mailto:sean at seandarby.com>> wrote:
|
|     To the original individual with the questions:
|
|     The "split" command will do it, if you are able to access the file
on a
|     *nix system and if you are simply needing to transfer it over from one
|     computer to another.
|
|     You could also try installing a small *nix set-up on your flash drive
|     for transferring files over from one computer to another.
|
|     If that doesn't work, the "split" command might still come in handy at
|     some point down the road.
|
|     You'd like to split an iso file:
|     file.iso = 1.1GB
|
|     You can split it into multiple smaller files:
|
|     split -b 680m file.iso
|
|     (You can use an amount other than 680.)
|     (The "-b" = "bytes" (size) of each split file.)
|     (k for KB, m for MB, etc... k, m, g, t, p, e, z, y.)
|
|     The output files:
|     xaa xab xac (etc.)
|     (You might want to rename those to something like "xaa_filename"
|     "xab_filename" etc., though that may not be necessary if this is the
|     only file you're splitting.)
|
|     Later, after transferring the files from one computer to another:
|
|     cat xaa xab xac > file.iso
|
|     or:
|
|     cat xa* > file.iso
|
|     This will put it back into the original state.
|
|     It can help when using a flash drive, though you might have to make
|     multiple file transfers to and from the different mediums. In any
case,
|     that's split and cat.
|
|     More below...
|
|      > |>> That's just what I wanted. But how? I can't install any
|     software on the
|      > |> pc...
|
|     If you can put something like DSL (Damn Small Linux) on the flash
drive,
|     or something smaller (even DSL is starting to get "fat") - perhaps a
|     Unix system instead - you might be able to pull it off.
|
|     Several systems can be installed with just the "base" applications. If
|     you exclude X apps (for GUI) you'll save a ton of space right away.
|
|      > |>>>> I'll be using a public Window$ XP SP1 PC, with hardly any
|     privileges.
|
|     When you get to the public Windows-based computer, you turn it off,
|     insert the flash drive, turn the computer on and hit the proper key to
|     select boot options (F2, F8, F12, etc.). It usually tells you early in
|     the boot process which key does it. It will usually - even on
|     restrictive computers - let you boot into the other system then.
|
|     Once you have booted into another OS, you have complete control.
|
|     If you can manage, you might consider getting a larger flash drive to
|     allow for ease in this whole process.
|
|      > |>>>> I'm looking around, it seems to be possible. But it needs
to be
|      > |> portable, (on my flash drive {no privileges}) so it's kinda
|     hard. Maybe
|      > |> impossible. I was just hoping someone else had done this.
|
|     I visited a university out of town a while back, got onto a
computer at
|     their library (it had a lot of restrictions), booted into my
|     OpenBSD/Unix flash drive (USB), I think it was a 2 GB stick, and
did my
|     work on there - including internet.
|
|      > |>>>>>> The problem is, I have dialup. So I need to go to our
|     library and
|      > |>>>>>> download it on my 1gb flash drive. But it's too big.
|
|     Yeah, a larger flash drive would help a lot. They've come down in
price.
|
|     In a case like this having 1 flash drive with a lot more space on
it is
|     more appropriate than several smaller flash drives.
|
|     Best of luck,
|
|     Sean
|
|
|
|     --
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|     <mailto:Ubuntu-Studio-users at lists.ubuntu.com>
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|
|
|
|
| --
| Christopher Stamper
|
| Email: christopherstamper at gmail.com <mailto:christopherstamper at gmail.com>
| Web: http://tinyurl.com/2ooncg
| gTalk: http://tinyurl.com/6e359r
| Skype: cdstamper
|
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