Elazar Leibovich's questions

I'm developing two Ubuntu packages which one depends on the other.

Say, foo which depends on libfoo.

I increment foo and libfoo's version together. It is always the case that foo version 1.2.1 depends on libfoo version 1.2.1.

What's the standard debian process for building libfoo and foo?

Do I have to build and install libfoo before and only then compile foo?

Can I have pbuilder somehow understand foo needs libfoo, and install libfoo before compiling foo?

What's the best practice for this case

It is very convenient to use byobu for sharing terminal screen.

Is there a convenient way to have a chat window inside byobu?

After installing perf with the linux-tools-common package, I still can't use the python/perl scripting abilities.

$ sudo perf script -g python
Python scripting not supported.  Install libpython and rebuild perf to enable it.
For example:
  # apt-get install python-dev (ubuntu)
  # yum install python-devel (Fedora)
  etc.

How can I install a perf version with scripting support, in Ubuntu?

In GNU screen, I could type Ctrl+A twice to switch between two windows.

In byobu, I can't see how to do that. F12+Ctrl+A doesn't work, and I can't find anything in the manual.

To be clear, I do not want to change the escape sequence to Ctrl+A. I want a key sequence that would switch between current and previous window.

I need a CD or USB stick, that will install Ubuntu on a completely headless machine. Stick CD in and restart, no keyboard or screen should be involved.

There are a few obstacles:

1. The language selection menu when you first boot the CD.
2. The fact that the CD menu waits.
3. The installer's asking questions during installation.

After upgrading from Ubuntu 10.04 to 11.04, the font on the top panel have a very low contrast and is hard to read.

How can I configure Unity's sidebar to have the following behaviour:

1) If I click on a program icon, and it's already running - switch to it.

2) If I click on a program icon, and it's not running - launch it.

More similar to Mac, or Windows 7's behaviour.

It currently does not work for Google Chrome.

Is there a repository containing packages for old versions of gcc, for the latest Ubuntu. I want to install gcc3 alongside gcc 4, for programs that need gcc3 specifically.

I'm looking for a command line like cleancode's email program which would allow me to send emails from the command line without setting an MTA (and would allow me to use separate accounts for each users, without touching the MTA's configuration).

Is there a PPA with cleancode's email program? Is there other similar program which is packaged with ubuntu?

I'm having a Dell Inspiron 1525. Suspend and resume were working correctly.

All of a sudden, when I click the suspend menu option the system doesn't get suspended. Instead, it is being locked. Viewing dmesg output reveals

[48214.876143] sky2 eth0: disabling interface
[48215.844400] PM: Syncing filesystems ... done.
[48215.872063] PM: Preparing system for mem sleep
[48215.872070] Freezing user space processes ... (elapsed 0.00 seconds) done.
[48215.873464] Freezing remaining freezable tasks ... (elapsed 0.00 seconds) done.
[48215.873582] PM: Entering mem sleep
[48215.873597] Suspending console(s) (use no_console_suspend to debug)
[48225.872091] usbhid 6-2:1.0: suspend error -5
[48225.872100] pm_op(): usb_dev_suspend+0x0/0x20 returns -5
[48225.872104] PM: Device 6-2 failed to suspend: error -5
[48225.872106] PM: Some devices failed to suspend
[48225.876917] PM: resume of devices complete after 4.807 msecs
[48226.076192] PM: resume devices took 0.204 seconds
[48226.076203] PM: Finishing wakeup.
[48226.076205] Restarting tasks ... done.
[48226.388912] sky2 eth0: enabling interface
[48226.390582] ADDRCONF(NETDEV_UP): eth0: link is not ready
[48227.894532] sky2 eth0: Link is up at 100 Mbps, full duplex, flow control rx
[48227.894999] ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
[48237.172073] eth1: no IPv6 routers present

In particular usbhid 6-2:1.0: suspend error -5. Google didn't find anything useful about that.

How can I further troubleshoot this matter?

Suddenly, the propriety Broadcom STA wireless driver ceased to work on my Inspiron 1525 Dell. All of a sudden, when I turned on the laptop the tooltip of the wireless indicator in the top panel shows networking disabled.

This also cause the wired network interface not to work, unless I manually dhclient it.

Indeed, lsmod doesn't show anything with bcm in it.

How can I further troubleshoot the issue?

Is there a nice, possibly GUI way to add mount points to partitions in Ubuntu?

For some reason, the mount point for my windows NTFS partition which was recognized during the installation is gone. In "Computer" the library still exist, but there's no mount point in fstab or mtab.

How can I add it again, so that it'll be nicely accessible from gnome as it used to be?

I'm ahving a Dell Inspiron 1525.

I installed there a stock Ubuntu 10. However I can see no "hibernate" item in the shutdown menu.

Is ACPI supported on 1525? If it is, how can I make hibernate work there?

Solved: my bad, swap wasn't on.