Ubuntu root
sudo command (you must do this every time you issue a command)
OR:
Create an Ubuntu root account with password easily.
This post also shows how to create a linux cd root password.
Categories
Recent Posts
Mouse cursor over these!
SOPA has been stopped
On the 18th, this website joined google, wikipedia and many, many, many others in a blackout in protest of SOPA and PIPA.
We won this one!
Today on January 20th, 2012 it was announced that the bills are being dropped.
Think we’ll fly the ribbon on the upper right corner of the website for some time more to appreciate that change and direction can come from internet collaboration.
Thank you, one and all who joined in on the protest to keep the internet open.
This is our lifeblood and prosperity.
Ubuntu root »« Find a file on the Android while in terminal or adb
Find a file on the Android while in terminal or adb
find /data -iname “myfile*.txt”
This will look in the /data partition for the files myfile1.txt, Myfile2.txt, etc.
The -iname makes the search case insensitive, which is what windows people are used to, whereas linux people can have two different files with the same name in the same directory! (different case)
Also note that Linux default sort on the Android makes the capital letter directories (folders) in front of the lowercase ones.
So Myfiles directory will not be next to myfiles2 directory!
SOPA has been stopped »« “Permission Denied” while trying to write a file to the Android
“Permission Denied” while trying to write a file to the Android
Mount an Android filesystem read-write
Very often when you want to write files to a particular partition on ADP, you will get a “Permission Denied” if the partition is mounted read-only.
To get around this, you need to mount the partition read-write. Typically this is done with /system partition
$ adb shell
$ su
$ mount -o rw,remount -t yaffs2 /dev/block/mtdblock3 /system
(Replace /dev/block/mtdblock3 & /system with appropriate device path and mount point, as obtained from the command mount or cat /proc/mounts)
Find a file on the Android while in terminal or adb »« How to change the Touch Wiz Bottom Dock
How to change the Touch Wiz Bottom Dock
Change the built in homescreen bottom dock drawer apps:
That’s the preset apps that you think you’re stuck with at the bottom “app drawer” on every home screen. Tap the all applications icon->tap menu->edit->then drag whatever app you’d like to replace onto one of the default four to on the bottom.
“Permission Denied” while trying to write a file to the Android »« Android – Turn off cellular radio – special backdoor code
Android – Turn off cellular radio – special backdoor code
Dial *#*#INFO#*#* and you’ll instantly have access to low level cell phone controls on your android!
You can turn off the Cellular radio while leaving wifi and bluetooth on!
Ping test the 3G network with this tool.
You can also mess things up with all of the phone options available 
This leads to the “Battery” which screen shows your battery level and battery temperature as well as battery health.
“Usage Statistics” screen shows the amount of time your apps are using CPU and how many times they’ve launched since last boot.
The “Wifi Status” tells you Android IP, hidden SSID, MAC address, link speed, it also has a ping tester.
How to change the Touch Wiz Bottom Dock »« Samsung TouchWiz tips and tricks for Galaxy S2 and others
Samsung TouchWiz tips and tricks for Galaxy S2 and others
These tips and tricks are specific to the Samsung Touchwiz interface:
Cool things you can do with TouchWiz:
Homescreens: TouchWiz supports upto 7 homescreens, there are 4 easy ways to quickly jump between them:
- Tapping on the tiny dots near the bottom of the screen and jumping between them directly.
- Tapping and sliding left to right to quick scroll, much like the ultimate Compiz desktop on Ubuntu!
- Pinch and zoom out to see all 7 desktops, much like Mac OSX multiple desktops and mission control!
- The usual slide from left to right, screen by screen. TouchWiz wraps around from 7 back to screen 1.
Screenshots:
To take a screenshot on the android, tap and hold the home icon and quickly tap and hold the power button. If you end up getting a screenshot of your recent launched task list, this will depend upon your timing, don’t hold home as long before tapping power.
Brightness adjust from any home screen:
This is a time saver. Touch and hold the status bar, then drag your finger to the right to make the screen brighter. This android brightness shortcut also works to quickly dim your screen by holding the notification bar and dragging to the left.
Browser text wrap:
The Samsung TouchWiz and Galaxy browser doesn’t wrap text to fit the screen when you zoom, by default. But you can turn this on in:
Browser->Settings->”Auto Fit pages” (Check this)
Browser User Agent spoof:
It’s built in to the browser with an easy radio button to mimick many good computers/browsers:
Type “about:useragent” in your URL bar and you can set it to be an iphone!
Pinch/Zoom based Tab switching:
While viewing a webpage, pinch and zoom out to view all of your open tabs and cycle through them like iTunes coverflow.
Custom Fonts for the phone:
Go to Settings->Screen Display->Font Style->Then choose your style or choose the option to download.
That’s the preset apps that you think you’re stuck with at the bottom “app drawer” on every home screen. Tap the all applications icon->tap menu->edit->then drag whatever app you’d like to replace onto one of the default four to on the bottom.
Keep your videos from switching from landscape to portrait while watching:
This is faster than turning off your auto-rotate on your phone and also less permanent:
While watching any video with the built in player, tap the power button and you’ll see a lock icon appear on the upper right (in landscape)
Special screen testing mode: This tests the lcd, the sensors and much of the android hardware:
Dial #0*#
Search key: If you don’t have a dedicated search key (Magnify Glass icon)
Long press menu. This normally brings up the recently launched tasks on most androids.
Dial by spelling your contact name:
Just like a phone alpha pad.
Quick calling from your contact list:
Swipe to the right to call your contact immediately.
Quick texting from your contact list:
Swipe to the left to text your contact immediately.
Android – Turn off cellular radio – special backdoor code »« Hard faults/sec in Windows 7 Resource Manager too many!
Hard faults/sec in Windows 7 Resource Manager too many!
Hard faults per second on Windows are not hard drive errors like you may think. They are simple pagefile accesses instead of RAM access.
You may see from 0 to more than 100 and it’s actually ok…well if you’re getting more than 50 or so, you’re system is running much slower than it can and most likely rattling the heck out of your hard drive.
Remedy:
- More ram
- Less hoggy programs running at once (easy to do with the new bloated software suites) just run the older lean and fast ones you remember and like if you can.
- Look in windows resource manager, find the memory hog and replace it with either an upgrade, downgrade, or another program. (Like I replace Adobe Reader with Foxit Reader which helps for memory use and security improvements)
Samsung TouchWiz tips and tricks for Galaxy S2 and others »« Apache httpd.conf – ServerSignature Off ServerTokens Prod
Apache httpd.conf – ServerSignature Off ServerTokens Prod
To supress apache returning information about itself in the response headers add these 2 lines to httpd.conf:
ServerSignature Off ServerTokens Prod This can be done with WHM without editing the httpd.conf file: Main >> Service Configuration >> Apache Configuration
Hard faults/sec in Windows 7 Resource Manager too many! »« Unpredictable drive errors
Unpredictable drive errors
from my favorite disk imaging program support website, a very helpful guide to fixing disk read or write errors due to glitchy items like bad IDE cables: http://www.terabyteunlimited.com/kb/article.php?id=152
Image Validation Fails with Image Stream Corrupt or Byte-for-Byte Validation Failure Message
This problem can be caused by overclocking, overheating, a hardware problem, or a BIOS or firmware bug or configuration issue.
To determine if the mainboard, memory, or CPU is at fault:
- Download and run either the Microsoft Windows Memory Diagnostic or memtest86 (or try both of them).
- If you use the Windows Memory Diagnostic, run the extended tests overnight.
- If you use memtest86, run all seven of the default tests and allow it to run overnight.
If the memory diagnostic does not report any errors, check the following:
- Run chkdsk /f on both the source drive and the drive holding the backup image. Important: Only run chkdsk if the memory diagnostic did not report any errors. Running chkdsk on a system with bad memory can result in data corruption.
Start a Command Prompt and then run chkdsk x: /f where x: is the drive to check.
For example: chkdsk c: /f
Note: If running Windows Vista or Windows 7, you must run chkdsk from an Administrator Command Prompt. - If the problem is occurring when saving images to an optical drive, try burning at a slower speed and/or updating the drive’s firmware, if possible. Also, please refer to the article Message “Unable to read from file” when Performing Image Validation or Restore, if applicable.
- If you are overclocking, revert your settings to the defaults and determine if the problem goes away.
- If you are using a non-standard, third-party system BIOS or device firmware, switch to the latest final version of the manufacturer-supported BIOS or firmware, reset all BIOS settings to the defaults (referred to as a “clearing the CMOS” procedure by some mainboard manufacturers) and determine if the problem goes away.
- If you have recently flashed to a different version of your system BIOS or the firmware of the controller to which your drive is connected (even if you the version used is a manufacturer-supported version), try reverting to the BIOS or firmware version you were using before (or the latest version) and determine if the problem goes away.
- If you are having the problem with an IDE drive and you are using an IDE cable that is greater than 18 inches in length, replace the cable with one that is 18 inches or shorter in length.
- Switch to an 80-conductor IDE cable.
- If you have an IDE drive that is set to master (and/or is the only device on the IDE cable) ensure that it is connected to the end of the IDE cable.
- If you are using a USB drive, please see the following KB article:
Troubleshooting USB Drive Connection and Performance Issues - Ensure that your system, including any applicable drives, are not running at temperatures that exceed the manufacturer specifications. If any temperatures are high, addtional case fans may be needed.
- The drive may have weak sectors. Try a thorough test with a utility provided by the drive manufacturer, with SpinRite, or with a similar utility.
If none of the above helps, the problem may be due to weak sectors on the drive surface. If the issue you are having involves a hard drive, download and run the hard drive manufacturer’s diagnostic utility or a third-party utility designed to scan and repair hard disk surfaces. Below are links to some major hard drive manufacturer’s home pages:
ExcelStor
Fujitsu
Hitachi
Seagate/Maxtor
Samsung
Seagate
Sony
Toshiba
Western Digital
If you still have not narrowed down the problem, try adjusting the system BIOS parameters below, for the drive(s) with which you are experiencing the problem. These settings, if available, are typically found under “Integrated Peripherals” or in the “Drive Configuration” section.
- Disable “Block mode”
- Disable “32-bit access”
- Switch to a different PIO mode
- Switch to a lower UDMA mode, if using UDMA
Apache httpd.conf – ServerSignature Off ServerTokens Prod »« Linux root password for live session
