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271  General Category / General Discussion / Re: How to do fsck on the root file system? on: August 06, 2009, 03:31:13 AM
for ext2/3 based filesystems read the superblock to determine the last filesystem check.
Code:
tune2fs -l /dev/something
272  General Category / General Discussion / Re: Sheevaplug installer - alpha-6 release - Testers needed on: August 06, 2009, 03:24:06 AM
see a few posts up. openocd does not find the plug because the usb identifier changed.

edit: user found it himself Wink
273  General Category / General Discussion / Re: Sheevaplug installer - alpha-6 release - Testers needed on: August 05, 2009, 12:18:48 PM
you can check what is mounted by typing
Code:
mount
in the booted linux system. Should show
Code:
/dev/mmcblk0p1 on / type ext3
.

most likely you have not mounted the sdcard.

to boot from the sdcard you need the init the mmc system in u-boot (this is most important after a full system reset. after a normal reboot the mmc stays initialized).

So booting goes like

mmcinit
load a kernel from somewhere (nand, tftp, sdcard, ...)
load an initrd from somewhere
define bootargs including the rootfs
run the loaded kernel

i can't say the exact commands out of my head but the wiki should tell.
274  General Category / General Discussion / Re: My Plug Plans ... on: August 02, 2009, 03:46:54 AM
I like to understand how things work, so might update uBoot manually.   Is there a good concise guide on how to do this?.

I also seem to recall reading the non marvel kernels don't have power management.  Is this true?  As thats pretty big omission and a reason why I might pass on updating.

there are two ways to upgrade uboot. Either directly write to nand using jtag (you need this to recover from a bad uboot upgrade) or boot into uboot and then tftp the new binary.

Writing to nand using jtag is covered in the alpha installer. I haven't investigated how to prepare a fitting binary.

Compiling your own uboot and writing it using tftp goes like this.

to compile your uboot (based on uboot 1.1.4 + marvel patches + sd-card patches) follow thread http://plugcomputer.org/plugforum/index.php?topic=183.0

or search the thread there is a ready compiled binary attached.

to write using tftp

* setup tftp server in your network. place uboot.bin in tftp root folder.
* boot plug to uboot (hit key to prevent autoboot)
* set plug ip (setenv ipaddr 192.168.1.10) and tftp ip (setenv serverip 192.168.1.2)
* flash image from tftp (bubt u-boot.bin)
* reset plug (reset)

It looks like the cpuidle patch made it into mainline linux 2.6.31-rc4, no idea if it is already in earlier releases
275  General Category / General Discussion / Re: My Plug Plans ... on: August 01, 2009, 01:11:44 AM
the alpha installer will also upgrade the u-boot (introducing the possibility to boot from sdcard). This can also be done manualy. Unless you are interessted in a detailed understanding what happens, go for the installer.

the non marvell kernel have no access to the internal crypto engine.
276  Hardware and U-Boot firmware / U-Boot stuff / Re: What is the difference between power-on reset and reset-button on: July 31, 2009, 09:54:35 AM
add quotes.
Code:
setenv bootcmd 'mmcint; nand read.e 0x800000 0x100000 0x400000; bootm 0x800000'
saveenv
reset
277  General Category / General Discussion / Re: Sheevaplug installer - alpha-6 release - Testers needed on: July 30, 2009, 10:07:51 AM
looks like the last batch of sheevaplugs changed vendor and product id. Modified scripts-linux/openocd/config/interface/sheevaplug.cfg to

interface ft2232
ft2232_layout sheevaplug
ft2232_vid_pid 0x0403 0x6010
#ft2232_vid_pid 0x9e88 0x9e8f
#ft2232_device_desc "SheevaPlug JTAGKey FT2232D B"
jtag_khz 2000
278  General Category / General Discussion / Re: Received yours yet? on: July 30, 2009, 01:55:53 AM
ordered june/11, received july/30. Looks like globalscale sends out a bunch the last days. But they still get the badge of "worst communiction" for not giving apox shipping dates (maybe not theirs fault) and not answering emails.
279  Linux Stuff / General Linux questions / Re: Second USB serial port on: July 05, 2009, 01:31:10 AM
device naming might shift during detection phase (but as long as you don't add, move, change your devices it shouldn't). If you need to make sure that you always get the same devicenames you can add custom udev rules. Base those rules on a unique criteria of the usb-serial converter and add another alias (myserial01).
280  Hardware and U-Boot firmware / Hardware / Re: Problem accessing the serial console on: June 14, 2009, 12:55:17 PM
do you here a windows notification sound when the plug is connected?

Or boot a linux (live-cd) plug in and check with "lsusb" if the plug is connection to the host.

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