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1  Linux Stuff / General Linux questions / Re: 3TB USB drive, only 800GB in size after formatting. on: November 12, 2011, 03:30:02 PM
I forgot to add, this is on a Sheevaplug, with the stock distribution. 2.6.22.18, Version #1 Thu Mar 19 14:46:22 IST 2009
2  Linux Stuff / General Linux questions / 3TB USB drive, only 800GB in size after formatting. on: November 12, 2011, 03:25:06 PM
I have connected a 2nd USB drive, it's a 3TB drive. After partitioning it and formatting it to ext2, it only shows as being 800GB in size. Any ideas if I am doing something wrong or if this is a bug?

Here are the various outputs I get:

root@sheeva:~# fdisk -l
Note: sector size is 4096 (not 512)

Disk /dev/sda: 3000.5 GB, 3000592965632 bytes
255 heads, 63 sectors/track, 45600 cylinders
Units = cylinders of 16065 * 4096 = 65802240 bytes
Disk identifier: 0x7912ad63

   Device Boot      Start         End      Blocks   Id  System
/dev/sda1               1       45600  2930255748   83  Linux

Disk /dev/sdb: 500.1 GB, 500107862016 bytes
255 heads, 63 sectors/track, 60801 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0x44fdfe06

   Device Boot      Start         End      Blocks   Id  System
/dev/sdb1               1       60801   488384001    c  W95 FAT32 (LBA)


------------------------------------------------------------------------------------------------------------
root@sheeva:/dev/disk/by-id# mkfs.ext2 /dev/sda1
mke2fs 1.41.3 (12-Oct-2008)
Filesystem label=
OS type: Linux
Block size=4096 (log=2)
Fragment size=4096 (log=2)
48930816 inodes, 195693025 blocks
9784651 blocks (5.00%) reserved for the super user
First data block=0
Maximum filesystem blocks=0
5973 block groups
32768 blocks per group, 32768 fragments per group
8192 inodes per group
Superblock backups stored on blocks:
        32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632, 2654208,
        4096000, 7962624, 11239424, 20480000, 23887872, 71663616, 78675968,
        102400000

Writing inode tables: done
Writing superblocks and filesystem accounting information: done

This filesystem will be automatically checked every 20 mounts or
180 days, whichever comes first.  Use tune2fs -c or -i to override.
root@sheeva:/dev/disk/by-id#

----------------------------------------------------------------------------------------------

root@sheeva:/mnt# df
Filesystem           1K-blocks      Used Available Use% Mounted on
rootfs                  519168    253868    265300  49% /
tmpfs                   257816         0    257816   0% /lib/init/rw
varrun                  257816       292    257524   1% /var/run
varlock                 257816         0    257816   0% /var/lock
udev                    257816        32    257784   1% /dev
tmpfs                   257816         0    257816   0% /dev/shm
tmpfs                   257816     21680    236136   9% /var/cache/apt
/dev/mmcblk0p1        15306620   1801832  12727244  13% /mnt/sd
/dev/sdb1            480719056 388076716  68223140  86% /mnt/share1
/dev/sda1            770488156    159932 731189620   1% /mnt/share2
root@sheeva:/mnt#


---------------------------------------------------------------------------------------------

root@sheeva:/mnt# fdisk /dev/sda1
Note: sector size is 4096 (not 512)
Device contains neither a valid DOS partition table, nor Sun, SGI or OSF disklabel
Building a new DOS disklabel with disk identifier 0x3053b55f.
Changes will remain in memory only, until you decide to write them.
After that, of course, the previous content won't be recoverable.


The number of cylinders for this disk is set to 12181.
There is nothing wrong with that, but this is larger than 1024,
and could in certain setups cause problems with:
1) software that runs at boot time (e.g., old versions of LILO)
2) booting and partitioning software from other OSs
   (e.g., DOS FDISK, OS/2 FDISK)
Warning: invalid flag 0x0000 of partition table 4 will be corrected by w(rite)

Command (m for help): p

Disk /dev/sda1: 801.5 GB, 801558630400 bytes
255 heads, 63 sectors/track, 12181 cylinders
Units = cylinders of 16065 * 4096 = 65802240 bytes
Disk identifier: 0x3053b55f

     Device Boot      Start         End      Blocks   Id  System

3  General Category / General Discussion / UPS for your plug. on: February 10, 2010, 01:51:16 PM
I have my plug connected to a brand new APC550VA battery backup UPS (39.95 from BestBuy.com).

According to the specs of the UPS it will last up to 43 minutes when you have a 15" LCD and a Mac Mini running on it.

I was hoping that since my sheevaplug only draws ~5 watts that it would actually last longer.

Alas, not. At the 45 minute mark it proceeded to shut off. APC tech support is of no help at all.

Does anyone else have their plug connected to a UPS and if so, what brand, and have you tested how long it will run without power?

Thanks
Kevin
4  General Category / General Discussion / Re: Controlling a business phone system with your plug? on: January 13, 2010, 10:03:45 AM
Thanks!
Kevin
5  General Category / General Discussion / Controlling a business phone system with your plug? on: January 12, 2010, 08:13:05 PM
About 5 years ago I did some programming for a company that had an PC with an Intel ISDN phone card in it and the system handled multiple incomming phone lines and had the standard "Press 1 to talk to accounting" "Press 2 to leave a message" etc. The software could detect the phone buttons pressed and record messages etc.

So I got thinking, does anyone make a similar device but USB based that you could connect to your plug and have a full blown phone system?

I was googleing around and found the Dialogic Diva USB http://www.dialogic.com/products/tdm_boards/diva_client/Diva_ISDN_USB.htm, not sure if it does the same thing. It does come with Linux drivers, has anyone used it or know of something that does what I am asking about?



Thanks
Kevin
6  General Category / General Discussion / Re: Introducing wpanel, an interactive shell for your plug in a browser and more... on: January 06, 2010, 10:50:04 AM
I have updated the tar now. I had made two changes to the directory reading code, I guess the first change didn't solve the issue but the 2nd one did.

Thanks
Kevin
7  General Category / General Discussion / Re: Have the finalists for the plug computer competition been chosen? on: January 05, 2010, 05:39:40 PM
is there a list somewhere saying what the projects are?
Kevin

8  General Category / General Discussion / Re: Introducing wpanel, an interactive shell for your plug in a browser and more... on: January 05, 2010, 12:27:01 PM
plugcrazy:
hopefully one of the other guys can help as I'm running apache2 so I have no idea. They are both running lighthttpd.

As for the directory and processes listings not working, I've updated the code, found a possible bug in the directory scanning so maybe it might work now? I've updated the tar.gz file that is linked to above.

Thanks,
Kevin
9  General Category / General Discussion / Re: Introducing wpanel, an interactive shell for your plug in a browser and more... on: January 05, 2010, 10:10:31 AM
One more thing, for processes, does it show "Error unable to get info" or does it just show nothing?

Thanks
Kevin
10  General Category / General Discussion / Re: Introducing wpanel, an interactive shell for your plug in a browser and more... on: January 05, 2010, 10:06:53 AM
Showing files and showing processes use the same mechanism, they open the directory and scan it for the files. So the only think that I can think of is there is a bug in my directory scanning code. It works for me with the default install so there must be some small difference with what you are running. I will add a bunch of debug prints to the output log file and hopefully together we can track that down. I will have a closer look at the code tonite and see if i can see anything wrong to start and then if not, add more debug code and post a new build.

Thanks!
Kevin
11  General Category / General Discussion / Re: Introducing wpanel, an interactive shell for your plug in a browser and more... on: January 04, 2010, 07:03:11 PM
The login form password is sent in the clear that's why I'd recommend using HTTPS, but once it is authenticated the first time then it saves the crypted version of the password to the cookie for the session. I could base64 encode or do some other type of encryption on it but since it is open-source anyone can see the decode function so anyone who really wants to get your password would be able to unless you used HTTPS.

Kevin
12  General Category / General Discussion / Re: Introducing wpanel, an interactive shell for your plug in a browser and more... on: January 04, 2010, 06:36:02 PM
You should just need to do:

chmod ug+s wpanel

On it and it's owner / group should both be root, that should be all that is needed as far as I know.
Cheers
Kevin
13  General Category / General Discussion / Re: Introducing wpanel, an interactive shell for your plug in a browser and more... on: January 04, 2010, 04:06:38 PM
Here it is:

http://www.scale18.com/temp/wpanel.tar.gz

I'm not sure if once you untar/ungzip if it keeps it settings. it needs to be root and needs setuid and setgid so it can do authentication of the name/password you supply. So you might need to manually change that.

Kevin
14  General Category / General Discussion / Introducing wpanel, an interactive shell for your plug in a browser and more... on: January 04, 2010, 03:09:38 PM
I just posted all the code and some screenshots at : http://code.google.com/p/wpanel/
I am familiar with anyterm and ajaxterm but frankly they were too complicated for me to install since I am a linux newbie. I decided to write my own. It is a single executable so installing it is as simple as compiling it and then just copying it into your cgi-bin folder.
You can quickly view the various states of your plug by clicking on the various tabs along the top. You can also view the files on your plug as well as edit any text files on your plug right in the browser. There is also an interactive shell so you can run commands on your plug in any browser.

Any feedback on it would be greatly appreciated!
Thanks
Kevin





15  General Category / General Discussion / Re: 3 weeks, no sign of my plug.. :( on: December 16, 2009, 06:52:43 PM
FYI, mine took ~5 weeks,  I just got it about 2 weeks ago.
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