user541686's questions

Pretty self-explanatory: could someone tell me why I get the error

$ sudo apt-get install gcc-6-base:arm64
dpkg: error processing archive /var/cache/apt/archives/gcc-6-base_6.0.1-0ubuntu1_arm64.deb (--unpack):
 package architecture (arm64) does not match system (amd64)
Errors were encountered while processing:
 /var/cache/apt/archives/gcc-6-base_6.0.1-0ubuntu1_arm64.deb
E: Sub-process /usr/bin/dpkg returned an error code (1)

when

$ sudo apt-get install gcc-6-base:armhf
Selecting previously unselected package gcc-6-base:armhf.
(Reading database ... 219445 files and directories currently installed.)
Preparing to unpack .../gcc-6-base_6.0.1-0ubuntu1_armhf.deb ...
Unpacking gcc-6-base:armhf (6.0.1-0ubuntu1) ...
Setting up gcc-6-base:armhf (6.0.1-0ubuntu1) ...

works just fine on my AMD64 system? How do I fix this?

On my old laptop (legacy BIOS, MBR disk), this was perfectly possible to get working:

• I turn on the computer and see the Windows Boot Manager

• I use EasyBCD (or BootPart, or something else) to add an option to the BCD menu which allows me to boot into GRUB, and then into Ubuntu

I can't figure how to do this on my new laptop (UEFI, GPT disk), whether in UEFI or legacy mode.

Currently I've installed (and even booted!) Ubuntu on my laptop, but only with the help of an external GRUB (on a USB flash drive).

How can I add GRUB as an option in the Windows Boot Manager on a UEFI laptop?

(No, I don't want to change my primary boot loader. So no, I don't want to overwrite the Windows boot loader with GRUB.)

Ubuntu always seems to freeze in the first ~15 minutes of when it's booted on my machine. Sometimes it's in the first 5 minutes, sometimes it takes 30 minutes, occasionally it never happens...

I can't reproduce it deterministically, but it happens often enough anyway that I probably just wait for it to happen again.

How can I diagnose the freeze to figure out the cause?

Note to close-voters:
No, this is not a duplicate of this question. This question is about diagnosis, not a temporary recovery. The answers on that question only tell me how to kill the X Server, use the Magic Combo to reset the kernel, etc.... which doesn't help me figure out the cause.

Some information:

1. Ubuntu 11.04: 2.6.38-15-generic #66-Ubuntu SMP x86_64 GNU/Linux

2. The mouse sometimes moves around, but the UI never responds.

3. Pressing Ctrl+Alt+F1 to get into a terminal doesn't work.

4. The Alt+SysRq combos do work... and seem to be the only things that work, aside from the mouse (which sometimes also can move around).

5. I'm not running out of any resources (many gigabytes of RAM and file system space are free)

6. Possibly relevant hardware (from the Hardware Lister application):

   • AR9285 Wireless Network Adapter (PCI-Express)

   • GT216 [GeForce GT 330M] (I'm using the Nouveau driver, which seems to work well)

How do I change the TTY resolution after the system has already booted?

How do I tell GRUB2 to set its resolution (and also the one passed to the kernel) to the maximum one it can detect at time of boot?

One thing I really hate about Ubuntu is how easy it is to accidentally delete files.

Is there any way to show a pop-up confirmation dialog when the Delete key is pressed, before a file is actually moved to the trash?

One of my pet peeves in Ubuntu:

I open up a folder with ~50 files in it. I start typing in the file name, and it matches something. I notice that the file I want is right beside it. I press the right arrow... nothing happens. I press it again, thinking it was a mis-press... still nothing happens. Nothing happens until I press Escape, and then select the file -- because the incremental search box has grabbed the focus.

Is there any way to fix this?

How do I know which drivers my system is using (e.g. my ndiswrapper driver vs. the bundled driver)?

Is it possible for me to make Ctrl+C perform a copy command if there is highlighted text in the terminal?
Otherwise, it should retain its normal behavior.

(If there is a terminal that can do this other than gnome-terminal, that's probably fine too.)

In the the past I used to use xmodmap to prevent the Caps Lock button from working, and then tell Launchy to handle the key press instead. I can't seem to do this anymore.

What is the best way to disable Caps Lock's normal behavior, and make it do something else?

How do I enable auto-arrange (not just "auto-align") for desktop icons, like in Windows?

Why is it that when I provide a username during the installation process for Ubuntu, that a new group is created with that name too?

Is there a reason we're not just plain Administrators?

Can I put the title bar buttons in Unity on the right side somehow, or is that impossible?

Sorry for the large screenshot, but I wanted to include everything that's here:

Why are my fonts bold in both Chromium and Firefox?

(I have not modified any font settings in Chromium or Firefox; this is a fresh install.)

How do I tweak the precise mathematical curve used for the mouse acceleration in Ubuntu?

How do I individually change the horizontal and vertical acceleration of the cursor? I can scroll side-to-side in a single stroke on a 1600x900 monitor on my laptop, but I can never do that vertically. Furthermore, the touchpad seems to be too sensitive horizontally (I hold my index finger still, but the cursor subtly moves)... is this fixable?

I'm using a Synaptics touchpad.

Is there any defragmenter out there for ext3?

A picture is worth a thousand words... so does anyone know how to fix this font blurriness in Firefox?

(You'll need to right-click the picture below go to View Image to view it full-size; it's too small to see anything here.)

Note: My other applications (and the Firefox non-client area, as you can see in the screen) are completely fine, so obviously going to System->Appearance and changing the font settings isn't fixing the situation.

Edit:

Not letting web pages to use their own fonts also doesn't help:

See how the upper one is still sharper?

Also, Firefox's own menu bar doesn't render the same way as the page content (menu bar below, page content above). They're both Segoe UI:

I've searched for this, and the answer is probably in a million places on the 'net, but I can't find it...

How do you give your account root privileges in Linux so that you don't need to sudo every single command that requires privileges? It's even more annoying than Windows's User Accounts Control.

(Please... I don't need a lecture on how I would be living a dangerous life. Thank you.)

(Before anyone asks -- I've installed the Guest Additions correctly. :] ) When I turn on on Seamless Mode for VirtualBox, it seems to work, but my windows no longer have any borders, and so I can't move them, maximize them, etc.

Why is this? Is there a fix?