124 days ago
Category  

Recently one of my AIX 5.3 systems started failing to boot with the following messages:

fsck: Performing read-only processing does not produce dependable results.      
+ mount /tmp                                                                    
mount: /dev/hd3 on /tmp: Device busy                                            
+ [ 1 -ne 0 ]                                                                   
+ loopled 0x518 /TMP MNT FAILED        

The problem turned out to be that /etc/inittab was corrupted. This, of course, has nothing to do with the error message. In my case, the contents of the file had been duplicated into itself.

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266 days ago
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Another problem I ran into with only obscure search results:

alucard@fileserver:~$ ssh aix04
alucard@aix04's password:
Last unsuccessful login: Fri May 15 15:28:28 EDT 2009 on ssh from fileserver
Last login: Tue Jun 16 10:31:45 EDT 2009 on /dev/pts/0 from fileserver
Could not chdir to home directory /home/alucard: Permission denied
/bin/ksh: Permission denied
Connection to aix04 closed.

The solution in my case was:

chmod a+rx /

/ had permissions 0644 when they need to be 0755 to allow anyone but root to log in.

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266 days ago
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I just ran into this problem: a Linux machine stuck very shortly after “Decompressing kernel…”, prompting me to enter a runlevel. Problem being that it wasn’t accepting any keyboard input from my USB keyboards and the system doesn’t have a PS/2 port. My Google search didn’t help much, so let me put this out there: check /etc/inittab. In my case, it was a one-line file clobbered by a pre-alpha quality product install. I was booted off of a rescue CD and once I copied /etc/inittab from another Linux system, it booted just fine off of the hard drive. So there you have it – if you’re getting “Enter runlevel” when booting when you’re not supposed to, check the health of /etc/inittab, especially the initdefault line.

id:3:initdefault:

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301 days ago
Category  

At tape archives, at least.

Someone at Sun has packaged up Sun Studio 12 using GNU tar, leading to pain fun when trying to install on a stock Solaris 10 system. There are many of errors like:

tar: ././@LongLink: typeflag 'L' not recognized, converting to regular file
x ././@LongLink, 116 bytes, 1 tape blocks
x install-sparc-S2/java-sparc-S2/packages/SUNWj5dmo/reloc/jdk/instances/jdk1.5.0/demo/applets/ArcTest, 0 bytes, 0 tape blocks

And then finally:

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367 days ago
Category  

The UPS in question: a F6B\C900-UNV.

I used to use the Bulldog Plus (3.01.18) software, but since my upgrade of this particular machine to Debian Lenny, the upsd process started taking up 30% CPU all the time.

Getting it to work with nut is easy! You just need the magic.

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374 days ago
Category  

I’m sick this weekend and don’t feel like writing much, so I’ll be brief. I’ll be doing a fresh install of Debian Squeeze (currently testing), found here, because my old install is getting broken, and I want to write down how I get things working on my Thinkpad R61 this time, both for myself and Google. I have a full-disk backup on my UltraBay hard drive. I’ll be going with the x64 version this time, and will be installing Lenny first, then upgrading, because I already have a Lenny CD, the torrent of the weekly squeeze images is unregistered, jigdo tells me “Aaargh – 0 files could not be downloaded. This should not happen!”, and HTTP goes at 50KB/s. I’ll limit this to Thinkpad-specific things.

Install: No issue. I chose to do it wired rather than load iwlwifi at install time.

Video: worked fine out of the box with the Intel driver.

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