|
The iPhone Wiki is no longer updated. Visit this article on The Apple Wiki for current information. |
Difference between revisions of "Tutorial:Mounting the Ramdisk of IPSW in Betas 4-7"
WEsTbAeR-- (talk | contribs) |
ChronicDev (talk | contribs) |
||
| Line 2: | Line 2: | ||
First unzip your ipsw, and take out the ramdisk file (it will be around 18mb). Then put it on your desktop |
First unzip your ipsw, and take out the ramdisk file (it will be around 18mb). Then put it on your desktop |
||
| + | |||
| − | In Terminal... |
||
| + | == In Terminal... == |
||
Launch /Applications/Utilities/Terminal.app |
Launch /Applications/Utilities/Terminal.app |
||
| Line 8: | Line 9: | ||
Then type the following: |
Then type the following: |
||
| − | + | cd Desktop |
|
| − | + | echo `hexdump -s12 -n4 -e '"%d\n"' ramdisks-hould-just-be-a-bunch-of-numbers.dmg ` / 32 | bc |
|
A number should appear. For example, in the case of beta 5, it would be 604800. |
A number should appear. For example, in the case of beta 5, it would be 604800. |
||
| Line 15: | Line 16: | ||
So you will type the following command now: |
So you will type the following command now: |
||
| − | + | dd if=ramdisk-name-aka-a-bunch-of-numbers.dmg of=ramdiskb5.dmg bs=32 skip=1 count=**NUMBERS-GO-HERE** conv=sync |
|
After this, you will have a file called ramdiskb5.dmg on your desktop. Just double click this file and it should mount fine. |
After this, you will have a file called ramdiskb5.dmg on your desktop. Just double click this file and it should mount fine. |
||
Example: Beta 5 Ramdisk |
Example: Beta 5 Ramdisk |
||
| − | + | Macintosh:~ xxxxxxxxx$ cd /Users/xxxxxxx/Desktop/iPhone1,1_2.0_5A274d_Resto (THIS IS WHERE I UNZIPPED MY IPSW. I was a bit sloppy and did it the quick but annoying way, and accidently deleted some letters. But my point is that this is a folder name. You'd probably be better off just unzipping the ramdisk to your desktop rather than to a folder) |
|
| − | + | Macintosh:iPhone1,1_2.0_5A274d_Resto xxxxxxx$ echo `hexdump -s12 -n4 -e '"%d\n"' 018-3615-6.dmg ` / 32 | bc (**THIS GETS ME THE NUMBER I NEED FOR THE NEXT STETP**) |
|
| − | + | 604800 (**THIS IS THE NUMBER I NEED FOR THE NEXT COMMAND**) |
|
| − | + | Macintosh:iPhone1,1_2.0_5A274d_Resto xxxxxxxx$ dd if=018-3615-6.dmg of=ramdiskb5.dmg bs=32 skip=1 count=604800 conv=sync |
|
| − | + | 604800+0 records in |
|
| − | + | 604800+0 records out |
|
| − | + | 19353600 bytes transferred in 5.721840 secs (3382408 bytes/sec) (**THIS MADE MY RAMDISK MOUNTABLE**) |
|
| − | + | (**AT THIS POINT, THE DECRYPTED RAMDISK WAS ON MY DESKTOP, READY FOR USE**) |
|
| − | |||
| + | == External Links == |
||
source: [http://www.chronic-dev.org ChronicDev User Wiki] |
source: [http://www.chronic-dev.org ChronicDev User Wiki] |
||
Revision as of 15:20, 28 July 2008
How to decrypt beta 4-7 ramdisks
First unzip your ipsw, and take out the ramdisk file (it will be around 18mb). Then put it on your desktop
In Terminal...
Launch /Applications/Utilities/Terminal.app
Then type the following:
cd Desktop echo `hexdump -s12 -n4 -e '"%d\n"' ramdisks-hould-just-be-a-bunch-of-numbers.dmg ` / 32 | bc
A number should appear. For example, in the case of beta 5, it would be 604800.
So you will type the following command now:
dd if=ramdisk-name-aka-a-bunch-of-numbers.dmg of=ramdiskb5.dmg bs=32 skip=1 count=**NUMBERS-GO-HERE** conv=sync
After this, you will have a file called ramdiskb5.dmg on your desktop. Just double click this file and it should mount fine. Example: Beta 5 Ramdisk
Macintosh:~ xxxxxxxxx$ cd /Users/xxxxxxx/Desktop/iPhone1,1_2.0_5A274d_Resto (THIS IS WHERE I UNZIPPED MY IPSW. I was a bit sloppy and did it the quick but annoying way, and accidently deleted some letters. But my point is that this is a folder name. You'd probably be better off just unzipping the ramdisk to your desktop rather than to a folder) Macintosh:iPhone1,1_2.0_5A274d_Resto xxxxxxx$ echo `hexdump -s12 -n4 -e '"%d\n"' 018-3615-6.dmg ` / 32 | bc (**THIS GETS ME THE NUMBER I NEED FOR THE NEXT STETP**) 604800 (**THIS IS THE NUMBER I NEED FOR THE NEXT COMMAND**) Macintosh:iPhone1,1_2.0_5A274d_Resto xxxxxxxx$ dd if=018-3615-6.dmg of=ramdiskb5.dmg bs=32 skip=1 count=604800 conv=sync 604800+0 records in 604800+0 records out 19353600 bytes transferred in 5.721840 secs (3382408 bytes/sec) (**THIS MADE MY RAMDISK MOUNTABLE**) (**AT THIS POINT, THE DECRYPTED RAMDISK WAS ON MY DESKTOP, READY FOR USE**)
External Links
source: ChronicDev User Wiki
