02-17-2009, 12:07 AM | #1 |
Junior Member
Posts: 7
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Join Date: Apr 2003
Device: Zaurus C700
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Getting a root shell
Hello
I am wondering how it is possible to get a root shell on the 505 ??? (I have a TTL serial cable if hardware UART connection is needed like for the Kindle) I spent some serious time googling for stuff, but I could not find anything interesting - only pictures of the kernels. There are many things I would like to test - like cross compling applications, or replacing the kernel. Do we know how to use the bootloader to replace the kernel+firmware? From what I understand, a 2 Mb NOR is used for the bootloader, so I guess there is no risk of bricking the device. Ideally, I would set up the usbd in net mode or serial mode (then with a pppd connection waiting) to be able to access the 505 by telnet and play mp3/aac streams when a special SD card is plugged in - like for the Igorsk firmware dump and update scripts. Later on, I would also like to try to write framebuffer applications replacing the reader application by something that could run 24/7 (with AC plugged in and the special SD), for exemple a clock + weather forecast + the name of the song playing on the mp3 stream, so that the reader could be usefull even when I'm not reading ! Any link/help would be welcome to "access" the device, including a basic "hello world" on the e-ink screen using the framebuffer or the /dev device (saw the librieX project but something simpler to get started would be more interesting) Thanks Guylhem |
02-21-2009, 01:47 PM | #2 |
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Device: sony 505
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try the openinkpot forum section, or the openinkpot irc channel. they probably know more about hacking the prs-505 then anyone here.
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02-26-2009, 09:26 PM | #3 |
Wizard
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Location: Belgium
Device: PRS-500/505/700, Kindle, Cybook Gen3, Words Gear
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02-26-2009, 10:17 PM | #4 |
Junior Member
Posts: 7
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Join Date: Apr 2003
Device: Zaurus C700
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Thanks a lot ! But I don't see the voltage mentionned - is it 3.3v or 5v?
Where can I get vcc nearby? Only see tx/rx/gnd Guylhem |
02-27-2009, 05:24 AM | #5 |
Wizard
Posts: 3,442
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Join Date: Sep 2006
Location: Belgium
Device: PRS-500/505/700, Kindle, Cybook Gen3, Words Gear
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It's 3.3 as far as I remember, and you don't usually need VCC for the serial port, but you could probably take it off some other pin.
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