USB Flash Drive Bootable?

Hello everyone,
I have a 1GB USB Flash Drive which I want to boot up from and run Drive Genius.
I made an image copy of leopard and deleted some stuff to make it go under 1GB. I have added the applications I wanted. Everything is good. My question:
How can I make the flash drive bootable?
How can I tell it which application I want it to open on startup?
Thanks in advance,
iloveisrael.

iloveisrael wrote:
Well, I've just tried booting from the USB Drive from the Startup Disk. It restarted the computer and it showed the apple symbol with the circle (meaning that it's loading), but then it would just restart my computer. I didn't see any apple menu, no terminal, no nothing. The problem is, my USB Drive has only 1 GB. However, I can use a DVD (4.7 GB), but I can only write on it once. I can't make mistakes because I don't want to waste them. Do you have any suggestions of how I can boot into an application? What should I erase from the image? What should I not erase? Any help would be GREATLY appreciated.
Thanks,
iloveisrael.
sorry I don't know. you'll have to experiment and see. get a rewritable DVD and go at it.
i have to admit that I don't know how bootability works on DVDs. Normally one has to bless a system folder after you copy a system to a new drive. That's how normal bootable clones are created. However, you can't do it with a regular DVD which is what the leopard install disk is so an entirely different mechanism is used and I don't know what that is at all.
also keep in mind that even if you make it work the chances that your apps will actually run are very slim. most apps are not designed to run like that. they use various frameworks missing from the system on the install DVD.

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I want to clone an existing Archlinux installation (x86-64) from a hard drive to a 32 GB USB flash drive. I want to be able to boot from the USB stick on my Win7 labtop.
I already took some measures to prepare my hard drive (with gparted). After moving all movies, pics etc to external stores and shrinking the home drive (sda4), it now looks like this:
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Last edited by 4on6 (2012-04-16 12:57:01)

4on6 wrote:Create two new partitions - with gparted p.ej.? And do I have to worry about the filesystems - must they be the same like for the original partitions on my hard-disk?
I prefer Gparted, it's easy as cake
The filesystems don't have to be the same as the original partitions. I prefer ext4 (universally supported) or jfs (uses very little CPU), but I recommend you ext4.
In fact, you can use a hard drive instead of a flash drive and this is how you clone a Linux installation manually!
4on6 wrote:So I mount both - source and destination partitions (/mnt/dest/ suggests it ...)?
Yes. I mount the source partition in /mnt/source and the destination partition in /mnt/dest, and then I issue
rsync -av /mnt/source/ /mnt/dest
and wait for it to finish. Then I unmount the partitions and mount the other ones and repeat the same thing.
4on6 wrote:I create that /boot folder on the flash drives root partition, right? Won't that cause problems later on with rsync, when I update the installation and there is an additional folder on the target partition?
Since the root directory you'll aready copy on the flash disk won't have the /boot directory, simple do a
mkdir /mnt/dest/boot
while your destination partition is still mounted. Unmount the source root partition, mount the boot one and then type:
rsync -av /mnt/source/ /mnt/dest/boot
and GRUB and the kernel will be copied to the /boot folder on the destinaton partition on the flash disk.
Make sure that in /mnt/dest/etc/fstab you comment out the line for mounting the /boot partition, if any.
4on6 wrote:I've seen those UUIDs as output of a linux command (mount? fdisk?), but I don't recall which one - how do I get these UUIDs?
Use Gparted, right click any partition and click Information. In the window that appears, in the middle you can double-click the UUID and press Ctrl-C to copy it. Then you can paste it in the text editor and use it for /etc/fstab or /boot/grub/menu.lst. That's why I love Gparted for such stuff.
4on6 wrote:Do I send this command from the live Arch-CD, and is it the only command necessary (I have not much experience with grub)?
Yes, since Arch uses GRUB 1 on the installation CD you can uste the command I gave you to reinstall GRUB on the flash disk with the settings you already entered for the /boot/grub/menu.lst file.
Make sure you boot the CD in 64 bit mode if the Arch you installed is 64 bit. Just to be safe.
4on6 wrote:I will ...
Be very careful, I didn't and lost ALL my files by mistake in typing. Triple-check the directory you are currently working in! ALWAYS make a backup!
4on6 wrote:Great that this is possible, hope I manage to get it done. Thanks again.
You're welcome. Please inform me if this little tutorial suited you so I can make a wiki entry for it, if the admins allow.

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