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The Official Dumb Mistakes Thread (TM) part deux
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lynxnyl
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PostPosted: Wed Sep 21, 2005 1:51 pm    Post subject: Reply with quote

of course. I never had to use eval myself and I have quite some bash scripting experince. With backticks or the new $() notation you can "eval" any output you want (bash -c $@ #would work too).
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vipernicus
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PostPosted: Wed Sep 21, 2005 3:55 pm    Post subject: Reply with quote

Been at a location installing a new cisco router, and couldnt' figure out why I wasn't pinging out. I could ping the servers, but not the core router or firewall. Turns out I forgot to do a 'no shut' on the Serial interface to bring the T1 up. Sometimes by default they will just be up and others you have to tell them to go up.
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ChristyMcJesus
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PostPosted: Fri Sep 23, 2005 8:00 pm    Post subject: Reply with quote

For a few months my sound hasn't been working. I've spend ages checking logs for errors, making sure drivers are loaded, making sure alsa isn't acting up, repeatedly starting alsamixer to make sure my channel aren't muted. I came to the decision that my soundcard must have died. Today I had the bright idea of plugging my speakers into the power outlet. Problem solved.
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abaelinor
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PostPosted: Sat Nov 12, 2005 6:56 pm    Post subject: aa Reply with quote

aa

Last edited by abaelinor on Tue Oct 21, 2008 4:37 am; edited 1 time in total
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John-Boy
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PostPosted: Sat Nov 12, 2005 7:31 pm    Post subject: Reply with quote

I think this is a dup (original was something like 'Official dumb mistakes thread') - however, a few weeks ago I spent about 15 mins wondering why I couldn't ssh into a machine, tried everything. I then realised that I hadn't brought eth0 up on the box that I was trying to connect from. Ahem.
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baeksu
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PostPosted: Sat Nov 12, 2005 11:09 pm    Post subject: Reply with quote

I'll write this story here instead of bumping up the "official" thread...

This morning my wife has to go to work early, so I get up with her. She leaves, and I try to listen to some music while I eat breakfast, so I boot up and start X. Turn on my external hd. It doesn't automount. Check dmesg, it doesn't get detected.

So I think, "hmm...this is what you get for updating kernel, I'll just switch to the old one". Reboot, start X. Disk doesn't mount, same thing with dmesg. Try to open terminal, menu (win) key doesn't work. Start up terminal manually, start screen. Press ctrl+a, ctrl+c. Control key doesn't work. Nice.

Now I'm thinking I got one of those Gentoo-moments, where the system just starts testing my nerves. I'd tried to emerge some packages at the same time, but the emerges fail. I check 'df -H', root is full 100%. wtf? I've had this installation for almost my whole Linux-life, over a year, and I'm not going to do a reinstall, no way.

I start thinking my whole fs is fscked, so I boot into a rescue partition, run e2fsck, everything checks up fine. I start 'du -ac'-ing folders in my root partition, and what happens? 'du -ac /var/log/' gives my 2.8 gigabytes. That's just nice.

Turns out, lircd doesn't work with suspend2 so well, and has made a nice 2.7 gigabyte logfile. I remove the file, reboot to normal root, and everything works as normal.

So now the system is running as smooth as it always has. I guess the lesson is that when you think your system is b0rked, it usually isn't. You just have to figure out what the hell went wrong. But if this had been a Windows install, I would've reinstalled in a second...
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kramerkeller
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PostPosted: Sat Nov 12, 2005 11:51 pm    Post subject: Reply with quote

8 hours trying to set up DSL last year (befoe the switch to cable) did everything called techs, my phone cord to the DSL modem was 6 feet instead of 4 and that made the difference.
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abaelinor
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PostPosted: Wed Nov 23, 2005 2:11 am    Post subject: Reply with quote

aa

Last edited by abaelinor on Tue Oct 21, 2008 1:48 pm; edited 1 time in total
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/dev/random
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PostPosted: Wed Nov 23, 2005 2:19 am    Post subject: Reply with quote

You know you've had a long day when you waste a few hours installing beagle only to find it's useless in this stage of development.
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PostPosted: Wed Nov 23, 2005 2:49 am    Post subject: Reply with quote

/dev/random wrote:
You know you've had a long day when you waste a few hours installing beagle only to find it's useless in this stage of development.


Agreed.

You also you've had a long day when you touch a mouse and you see nothing on the screen but you see your CPU is running so something is wrong with the monitor only to realize 15 minutes later that you forgot to turn on the monitor. :(
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abaelinor
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PostPosted: Wed Nov 23, 2005 3:00 am    Post subject: Reply with quote

aa

Last edited by abaelinor on Tue Oct 21, 2008 1:48 pm; edited 1 time in total
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freelight
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PostPosted: Wed Nov 23, 2005 4:03 am    Post subject: Reply with quote

Today I tried to burn the DVD, k3b wasn't able to access my dvd burner. I ran it as root, same thing. Try cdrecord, device not detected. I take a look at /dev/hdc - it's not there. I take a look at my kernel config, curse under my breath for updating the kernel recently when the old one was fine, reboot with the old kernel, same thing. I play with the drive itself, it seems fine, the eject buttons works and it accepts/reads disks. I kick the computer case in frustration, the panel comes off. I see the IDE cable dangling next to my DVD burner.
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smellycheeseboy
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PostPosted: Wed Nov 23, 2005 10:45 am    Post subject: Reply with quote

My friend actually did rm -fdr / as root and then later that week deleted a partition from the partition table on accident and then to prove he's not a complete idiot, somehow recovered the system without a reinstall.

I have done too many dumb things to count but the most major is spending about 3 hours trying to diagnose a problem with sound, almost resorting to reinstalling all drivers and then realizing the channel was just muted.

me
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eqlazer
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PostPosted: Fri Dec 09, 2005 1:23 am    Post subject: Something stupid with MAKEOPTS Reply with quote

Today I did something very stupid. When I were playing around with hyperthreading, testing it on and of, I were doing some changes in make.conf (j2->j3). I did this in console, and my keyboard must have freaked out (a Microsoft wireless elite) as it does sometimes. Instead of MAKEOPTS="-j3" it become MAKEOPTS="-j333333333333333333333333333333333", and ":wq" in vim is just a reflex. No wonder I had som problems emergeing packages after that :( It took a while before I discovered this error. Well, I hope you guys are a bit cleverer then me :)
(I just feeled to share this little incident)
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madchaz
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PostPosted: Fri Dec 09, 2005 2:44 am    Post subject: Reply with quote

Not my mistake, but still hilarious.

We have 2 linux boxes at work we use for test databases. We had some weird issues with them and, I, being the linux guy, was given the tast of fixing it.

I login via SSH and it takes FOREVER to get the password prompt. I finaly login then set about trying to resolve a software issue. After an hour, I find a patch that should fix the issue we're having. I try to download it from the linux machine ... no go. I ping the IP of the server I get it from and it works. What the?

Try doing a ping of the hostname, it can't find it.

I check resolve.conf. Each machine is using itself and the other one as DNS servers, and nothing else. No wonder they can't resolve any name. Put the first entry as our network's primary DNS, and voila, ALL the issues we had are now fixed. Wonder who the wizard who hand wrote the resolve.conf was. (Both machines have saticaly configured IPs, not using DHCP)
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madchaz
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PostPosted: Wed Dec 14, 2005 6:18 pm    Post subject: Intoxicatied mistakes Reply with quote

I was reading in network and security and came across a post of someone who might have downloaded some un-save software because he was drunk. Now, of course, being sober, he can't find it.

As a testimonial to why you should never operate a computer while under the influence, how about some other stories of the like?

A while back, I had implemented "so many failed login locks your account" on my desktop and server. The idea was that if someone locked an account, I knew they had tried to hack me, for one, and it would stop them. Because root was not allowed to login via anything except the console, I felt safe.

One evening, while not so sober, I tried to login to my computer and, unable to see strait, borked my own account. No prob, I'll just login as root and unlock it ... except I could still not see strait and locked root out. No prob, just use the live cd and remove the password from the shadow file ... except I'm still quite un-sober and I ended up deleting the whole /etc folder before I finaly decided to just quit.

Next morning, I wake up to find a rather non-working desktop. I had wasn't sure if I should laugh or cry when I saw my history file, I had finished re-installing about a week prior. ;-)
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deadstar
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PostPosted: Wed Dec 14, 2005 7:18 pm    Post subject: Reply with quote

Haha I do shit like that all the time!

Best one was when me and a mate (also a Gentoo user) came home absolutely out of our faces, and decided to do "that thing he was gonna help me fix last week" which is unrelevant.

I woke up to find every PC in the house (my girlfriend's, my flatmate's, gaming rig, media box, laptop) had their desktop images switched to screenshots of this beastiality porn we'd found!

I wasn't very popular with neither house tenant nor other half for a few days.


As to borking my system, nothing too dramatic (yet) but yes, I do this sorta stuff regularly. It's only a matter of time before I learn the hard way!
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Larry The Cow
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PostPosted: Sun Dec 18, 2005 11:21 pm    Post subject: LoL! Oops. Reply with quote

I don't know if this is the right forum, but I just wanted to share with you a story of my n00bishness. :P

Ok, I'm just going through some tutorial on DNS stuff, and I'm doing a
Code:
rm -Rf /var/foo/bar
and instead I did a
Code:
rm -Rf /var/ foo/bar
not good (I did interrupt it before it finished); I'm now re-emerging my entire system (the world file is gone anyway). I'm hoping I will be able to reboot when I get all done; any ideas on how to avoid a reinstall? :P

NOTE: I'm using the same computer to post this, so it's ok right now... Mostly.
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PostPosted: Mon Dec 19, 2005 8:10 am    Post subject: Reply with quote

regenworld
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PostPosted: Mon Dec 19, 2005 8:17 pm    Post subject: Reply with quote

I guess the dumbest mistake I ever made was when I had finished installing gentoo (stage 1), and booted it from the hard disk. When all of a sudden it couldn't find my reiserfs partitions. I had frantically searched gentoo forums/wiki/anything for two weeks, I was nearly ready to give up and reinstall when, looking at the errors closely, noticed that they were complaning about not being able to mount resierfs partitions.

I must've read through /etc/fstab at least ten times before I realized that I had misspelled it eight times...
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PostPosted: Mon Dec 19, 2005 9:32 pm    Post subject: Reply with quote

In a vain effort to reorganize my home directory many weeks ago, I moved what I thought was everything onto a backup partition and re-did the whole "mkfs.ext3" dance of joy on /dev/hda8 (my ~70 gig home partition). Not long after did I realize that I forgot to copy over the hidden directories (~/.foo, etc.)

Woops. There went my GnuPG keyring, my saved mail from Evo, and most of my preferences since my last backup more than two months before. :oops: What makes it slightly worse is that I had no backup of my keyring, as I was planning on copying that to my USB memory stick thing after I had reorganized my stuff. :oops: Add to it that I never made a secure copy of my revocation certificate. :oops:

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madchaz
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PostPosted: Sat Feb 04, 2006 2:24 am    Post subject: Reply with quote

New stupid mistake.

Not too long ago, I started using vmware to boot up the windows XP I have on my HD. Made a seperate hardware profile and it worked like a charm.

I was happilly installing software on my linux and decided to boot vmware up and start my windows system to check something. My GF asked me to come do something and I came back to find it had booted off the default OS, gentoo. So now, I had 2 machines booted off the same filesystem. Tried doing a clean shutdown of both, but when I booted back up, it found a gazilion errors and now 90% of the system won't work right. X refuses to start, I can't emerge anything.

The worst part is I finished installing last week-end. Well, off to a re-install I go.
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PostPosted: Sat Feb 04, 2006 2:38 am    Post subject: Reply with quote

Wiped partition tables on two disks while trying to remove grub, luckily neither of the disks was a system disk, they didn't contain important data and I'm still hopeful that the partition table can be restored. Next time I'll read the whole thread before following a guide on a mailing list.

[edit] Saved by gpart :)
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PostPosted: Mon Feb 06, 2006 8:29 am    Post subject: Reply with quote

Code:

 # ln -sf /bin/sh /bin/bash

(with /bin/sh being a symbolic link pointing to /bin/bash)

the result?
Code:

 # bash
 Too many levels of symbolic links


O.o
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PostPosted: Fri Feb 17, 2006 7:11 pm    Post subject: Deleted /var Reply with quote

Ok so there I was cleaning out my /var directory when I accidentally deleted the whole directory :( Now I'm emergeing all of my packages (as they seem to be broken) anyways hopefully all goes well, I'll do one last emerge -e world after this to ensure proper linkage, are there any other fears or concerns I should have?

Ok so point and laugh at me if you like. Tell storries of stupid blunders you've made if you think it will make me feel better, or offer some suggestions on how to clean my system if you think it's bjorked!
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