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Steps given here may well help identify the problem

My attempt at rescue of encrypted disk was stalled by the following error, which occured when I tried to mount my encrypted LVM volumes:

mount: special device /dev/hd... does not exist

This...

It's a problem with the password reset web link.

I gave ubuntuforums all permissions in NoScript.

But when I clicked on the web link in my password reset email, and changed my password, it...

I have the same problem. It's been a problem for years.

It seems to use OpenID poorly. E.g.

I just logged in to Ubuntu Forums (UF). UF didn't even ask for a password. It just said click here to...

KDE appears to be taking over my Xubuntu XFCE desktop. I feel cornered. I don't know what to do.

It all started a few weeks ago when something - I'm afraid I cannot now remember what - asked to...

Dear anspectrum

Thanks for your help with this. Sorry to have neglected your kind reply - I have been waiting for enough free time to jump into this jungle and start hacking. Alas, free time is...

A very helpful answer, matt_symes, thank you.

Curiously, when I went back to use your bash shell suggestion, I found that the tracing_on file was already set to 1. As you can see from above, it...

I'm looking for a solution to this problem because an ugly performance problem has arisen on my computer. I am at a loss to troubleshoot it. Guidance online suggested a trace. The trace doesn't work...

Same deal. nano text editor opens file okay. Edits okay: 0 changed to 1. Saves okay. But then:

# cat tracing_on
0

Now that sudo -s is open, ls -l /sys/kernel/debug works fine.

Thank you, SlugSlug.

(I can see that "sudo -s" sets up a super user shell, but do you happen to know why this is necessary to access the debug directory?).

This has solved part of my problem....

I am unable to write to files in, or even go to, my debug or debug/tracing tracing directories.

$ sudo echo 1 > /sys/kernel/debug/tracing/tracing_on
bash: /sys/kernel/debug/tracing/tracing_on:...

Nothin.

Thanks, anspectrum. All very helpful suggestions, I am sure. I'm afraid you would 1. need 2. to 3. spell 4. it 5. out 6. if I was to follow them.

Thank you, Iowan. I was using 192.168.1.254 when attempting access. Would you please give me specific instructions if you want me to test anything on the command line.

Some new developments....

Problem: No internet connection over ethernet

Internet provider: Post Office
Operating system: Xubuntu 12.04

The connection works fine over wireless.

The wired connection works when I run...

Thank you, Cheesemill. This looks the ticket.

To recap.

I'm looking for Documentation that text books say I should be there. But I can't find it.

Linux journal says:


The file Documentation/devices.txt in the kernel source tree lists...

Thank you for your suggestions.

The information I'm looking for is not in the man pages, Codemaniac.

I'm not looking for documentation for a specific package, Raja. I'm looking for local...

Linux reference documents often ask the reader to refer to 'Documentation', usually with a path like 'Documentation/Such-and-such'.

But I can never find the files I'm told I should refer to.
...

Some helpful reflection on this problem for other numpty users:

When you ask in the forums about backing up and restoring data, the techies say, 'What, molova, you didn't even know that all you...

I have the same problem as Ederico.

How do I resolve this without accidentally corrupting my backup?

I had used the standard Ubuntu option to encrypt my data when I installed. The home folder...

Success!

This is brilliant. Thank you westie457. I followed your excellent advice. The wireless on this HP 530 is now working perfectly. Even the blue wireless button is working.

Seems there...

Specifications
--------------
Broadcom Wireless network controller: BCM4311 802.11b/g WLAN [14e4:4311] (rev 01)

HP 530 notebook computer

Problem
-------
Wireless not working. The network...

From...
http://tldp.org/HOWTO/Software-Building-HOWTO-3.html

"Using make as an ordinary user without root privileges will likely result in write access denied error messages because you lack...