From time to time you or lvm arent perfectly good at cleaning up after youselves when adding/removing disks for one or another reason
and even though everything works, you get spammed with errors like.
Archive for category linux
After a system crash, i decided to install the new version of Ubuntu server 8.10, everything went fine with the installation and so on.
if you use glftpd as ftp server, you might run into
user@server:/# ftp localhost 12345
Connected to localhost.
421 Service not available, remote server has closed connection
If theres one thing i hate, its error messages that says absolutly nothing usefull, like this one.
i had ensured that my exports list was correctly set up, actually, i had it tested from my tvix (was able to browse the share) but from another nix server, i got this message.
After the crypto bug got fixed in debian (and the system got updated via apt) it would prompt one for regeneration of certificates.
what i forgot all about, was that of course OpenVPN was affected by this aswell, so after the update and a reboot, all my vpn connections died suddenly.
So i finally pulled myself together and formatted my server (4 years since last time i did a full reinstallation)
usually i just upgrade the kernel, but hey, time for some cleanup!
i save the .config file for the running kernel, as lazy i am, no need to spend more time than necessary.
since i decided to make it my router, i had to compile iptables support. which i did, and compiled rest of the netfilter/iptables related stuff as modules. so the weird thing was, while i were trying out an old iptables rules script
i got an error like
iptables -t nat -A POSTROUTING -o ppp0 -j MASQUERADE
FATAL: Module ip_tables not found.
iptables v1.3.8: can’t initialize iptables table `nat’: Table does not exist (do you need to insmod?)
Perhaps iptables or your kernel needs to be upgraded.
First i reinstalled iptables which made no difference, then the kernel again (included a few useless modules)
and i still got the error.
anyway, it seems like it can be rather unhealthy to use your current kernel config everytime you compile a new kernel, since there are some options which arent updated(no questions asked)
anyway, i did a make menuconfig, removed the support for networking (Networking – [*]Networking Support)
save the config file, opened it again, and enabled the support. all the original settings were removed, and i had to config it from scratch, but to my big surprise, i suddenly had alot more options to play with. and after compiling the kernel, rebooting – the problem was fixed 
This is usually pretty much useless for almost everyone using PPPoE these days
but since i recently got fiber installed at my place, and my isp got a thing for PPPoE
and also got multiple access concentrators (servers you can connect to, providing redundancy) i got a small problem since i hooked up the link directly to my linux gw.
After installing VMware server + console successfully, the client console might bug you with an error message sounding like
VMware Server Console
The Process exited with an error:
End of error message.
I constantly get annoying messages from this ugly person which i would mostly describe as the human version of Peter Griffin from family guy. -> superjoachim.dk
so in order to make it stop, i decided to try and help him with vmware server installation which he fucked up (can’t prove it, but all the evidence points to him)
Anyway, while trying to install it, one might encounter an error message like this
So, here we are again. i finally got fiber, unfortunately its via PPPoE (dont ask).
 At least the client has improved over the years since i last used it, which must have been 7 years ago or something. anyway, my memory isn’t what it used to b…hmm, nevermind. my memory more or less always fails to remember anything at all, so of course i ran into problems again. here’s some output from /var/log/syslog after trying to start pppoe.
 (i actually did compile a new kernel with support for PPP, but i forgot something…)
Oct 26 23:39:16 foo pppd[3069]: pppd 2.4.4 started by root, uid 0
Oct 26 23:39:16 foo pppd[3069]: Serial connection established.
Oct 26 23:39:16 foo pppd[3069]: Couldn’t set tty to PPP discipline: Invalid argument
Oct 26 23:39:16 foo pppoe[3071]: PADS: Service-Name: ”
Oct 26 23:39:16 foo pppoe[3071]: PPP session is 41216 (0xa100)
Oct 26 23:39:16 foo pppoe[3071]: read (asyncReadFromPPP): Session 41216: Input/output error
Oct 26 23:39:16 foo pppoe[3071]: Sent PADT
Oct 26 23:39:46 foo pppd[3069]: Serial connection established.
In short,i forgot to compile support for “PPP support for async serial ports”