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usbwithstorage [2009/09/24 10:17]
tiriel
usbwithstorage [2009/09/24 11:05] (current)
meteger
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 As stated [[removable | here]] you can place gPXE on a USB drive, unfortunately,​ the standard procedure will render your USB device unusable for any other purpose. The intention of this guide is to walk you through the process of deploying gPXE to a USB device and be able to still use it as storage media. As stated [[removable | here]] you can place gPXE on a USB drive, unfortunately,​ the standard procedure will render your USB device unusable for any other purpose. The intention of this guide is to walk you through the process of deploying gPXE to a USB device and be able to still use it as storage media.
  
-**Note:** ''​This guide is a walkthroug ​for Mac OS X 10.5, also it uses BKO instead of gPXE, still I believe the process would be similar in Linux and/or for gPXE.''​+**Note:** ''​This guide is a walkthrough ​for Mac OS X 10.5, also it uses BKO instead of gPXE, still I believe the process would be similar in Linux and/or for gPXE.''​
  
 **__Important:​__** Backup the data on your USB drive, as you **WILL** lose it in this process. **__Important:​__** Backup the data on your USB drive, as you **WILL** lose it in this process.
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     *{{:​screenshots:​disk_id.png?​500|}}     *{{:​screenshots:​disk_id.png?​500|}}
     *In the case depicted above the Disk Identifier is disk1, so the device would be ''/​dev/​disk1'',​ that's the device name we'll use for the rest of the tutorial, adapt to whatever your disk identifier is.     *In the case depicted above the Disk Identifier is disk1, so the device would be ''/​dev/​disk1'',​ that's the device name we'll use for the rest of the tutorial, adapt to whatever your disk identifier is.
- 
 ==== 3. Deploying BKO ==== ==== 3. Deploying BKO ====
-To deploy BKO to your USB drive, fire up Terminal and cd to the directory ​ you downloaded it and deploy ​it by using+To deploy BKO to your USB drive, fire up Terminal and cd to the directory ​where you downloaded it. Deploy ​it by using
     dd if=gpxe.usb of=dev/​disk1     dd if=gpxe.usb of=dev/​disk1
 Remember to substitute ''​disk1''​ for your own disk identifier. Remember to substitute ''​disk1''​ for your own disk identifier.
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 If you're deploying a generic gPXE, just follow the instructions under [[removable|Using removable media]] If you're deploying a generic gPXE, just follow the instructions under [[removable|Using removable media]]
 ==== 4. Recovering your storage space ==== ==== 4. Recovering your storage space ====
-At the moment, your BKO/gPXE should be up and ready, feel free to try it out. Nevertheless you will find that you're using your whole USB drive for a tool that uses barely 2MB of espace. We will be redefining the partition table so we can use the remaining ​espace. +At the moment, your BKO/gPXE should be up and ready, feel free to try it out. Nevertheless you will find that you're using your whole USB drive for a tool that uses barely 2MB of space. We will be redefining the partition table so we can use the remaining ​space.
 There is a screenshot of this process below. There is a screenshot of this process below.
  
-  - Launch ​the fdisk utility by using+  - From Terminal, launch ​the fdisk utility ​in interactive mode by using:
     * <​code>​fdisk -e /​dev/​disk1</​code>​     * <​code>​fdisk -e /​dev/​disk1</​code>​
-  - Once fdisk starts, the prompt should look like+  - Once fdisk starts, the prompt should look like:
     * <​code>​fdisk:​ 1></​code>​     * <​code>​fdisk:​ 1></​code>​
-  - Issue the print command to get a preview of the partition table+  - Issue the print command to get a preview of the partition table.
     * <​code>​fdisk:​ 1> print</​code>​     * <​code>​fdisk:​ 1> print</​code>​
-    * BKO is installed on the forth partition, note the size of the partitionfor you will need that number ​afterwards+    * BKO is installed on the forth partition, note the size of the partition for you will need that number ​in the next step
-  - Edit the first partition to use it as the storage ​partition.+  - Edit the first partition ​to be able to use it for storage.
     * <​code>​fdisk:​ 1> edit 1</​code>​     * <​code>​fdisk:​ 1> edit 1</​code>​
-    - First you will be asked for the partition'​s id, enter ''​0B''​ that is the code for Win95 FAT-32 filesystem. +    - First you will be asked for the partition'​s id, enter ''​0B''​that is the code for the Win95 FAT-32 filesystem. 
-    - Then you will be asked if you want to edit in CHS (cylinder, head, sector) mode, say ''​no''​ unless you know what you're doing +    - Then you will be asked if you want to edit in CHS (cylinder, head, sector) mode, say ''​no''​ unless you know what you're doing. 
-    - When prompted for the partition offset, enter the size of BKO's partition, ​in this case ''​4064''​+    - When prompted for the partition offset, enter the size of BKO's partition, ​that is the number referred on step 3.
     - Last you will be asked for the partition'​s size, leave the default value.     - Last you will be asked for the partition'​s size, leave the default value.
-  - Issue the print command again to make sure the changes have been made+  - Issue the print command again to make sure the changes have been made.
     * <​code>​fdisk:​ 1> edit 1</​code>​     * <​code>​fdisk:​ 1> edit 1</​code>​
   - Write the changes to the disk by issuing the write command.   - Write the changes to the disk by issuing the write command.
     * <​code>​fdisk:​ 1> write</​code>​     * <​code>​fdisk:​ 1> write</​code>​
-  - Exit fdisk+  - Exit fdisk.
     * <​code>​fdisk:​ 1> quit</​code>​     * <​code>​fdisk:​ 1> quit</​code>​
 {{:​screenshots:​fdisk.png?​500|}} {{:​screenshots:​fdisk.png?​500|}}
  
 ==== 5. Give format to your new partition ==== ==== 5. Give format to your new partition ====
-Now you will have your BKO/gPXE working and a separate partition for your storage, but Leopard still won't recognize the new partition, you need to give format ​to it.+Now you will have your BKO/gPXE working and a separate partition for your storage, but Leopard still won't recognize the new partition, you need to format it.
   - Launch Disk Utility.   - Launch Disk Utility.
   - Select disk1s1 under the USB device on the left menu.   - Select disk1s1 under the USB device on the left menu.

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