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1
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1answer
443 views

-bash: /usr/sbin/useradd: Input/output error — What does this mean?

Today, on my Centos server I tried to add a user but got the following error: -bash: /usr/sbin/useradd: Input/output error How do I fix it?
1
vote
1answer
598 views

Failed to sign CSR with the CA root key

I'm trying to implement Mutual Certificate Authentication , I have to be the CA and server at the same time , generate certificates and sign them for users. and I'm following this tutorial which is a ...
10
votes
8answers
619 views

How to read the messages during power off

I'm using Lubuntu 11.10. Every time I turn off my Sony Vaio I can read FAIL in red letters. But I can not read. I tried to take a photo, but not success. Well, I was not worrying about this but ...
5
votes
1answer
730 views

How to trigger error using Trap command

I am using Ubuntu 12.04.2. I am trying to use "trap" command to capture abnormal or error in my shell script but I am also trying to manually trigger "Error" exit. I have tried exit 1, but it won't ...
3
votes
2answers
9k views

What does “INFO: task XXX blocked for more than 120 seconds” exactly mean on Linux?

I had this message in my kernel log : INFO: task XXX blocked for more than 120 seconds. I would like to know what it means technically: under what conditions does the kernel display this message about ...
2
votes
3answers
135 views

Syntax error in shell script

I have this script to divide a file over a 100000 or even more in 50000 lines. desc() { echo ...
1
vote
1answer
965 views

virt-install complains “error: no such option: --network-bridge:br0”

I was following the directions here to set up a VM in CentOS 6.4 i386/686. But I'm getting this error: $ sudo virt-install --network-bridge:br0 --name vm1 --ram=1024 --vcpus=1 --disk ...
4
votes
1answer
515 views

du — ignore file not found errors

I'm trying to get the size of a folder an application is currently writing to. If I run the du command it sometimes fails with the error: du: cannot access `/a/b/a.txt': No such file or directory ...
1
vote
1answer
1k views

Failed to get bus connection: Could not connect: Connection refused

When I'm running evince file.pdf I got this error Failed to get bus connection: Could not connect: Connection refused Ubuntu 12.04 I have to reboot. Can I repair this error without reboot?
4
votes
1answer
295 views

Configuring Apache to Require a Client Certificate

I want to implement mutual authentication (two - way ) with apache web server. References : 1.Failed to sign CSR with the CA root key 2.Firefox error message when adding client certificate ...
3
votes
1answer
723 views

Firefox error message when adding client certificate signed by CA

I'm getting this message when I'm trying to add a certificate to Firefox's "your certificate tab". I generated and signed it before by a server which also is a CA. Failed to decode the file. ...
2
votes
1answer
149 views

How to have a bash script perform a specific action on errors of _each_ command?

Similarly to set -e performs an exit on "uncaught" $? != 0, I'd like to have this event trigger the execution of another command, e.g. a logger call. How can this be done?
1
vote
1answer
2k views

“No such file or directory” on files that exist? [duplicate]

In the past day, I've found at least 4 binaries that say "bin-name: No such file or directory" when I try to run them. Even if I type part of the name and tab complete it, I get the same error. I'm on ...
1
vote
1answer
207 views

Mint 12 - Error updating MySQL (mysql-client-core-5.1)

I have MySQL 5.5 installed via packages.dotdeb.org. When trying to update 5.1, which is also installed, I get the following error: E: ...
0
votes
2answers
217 views

chkrootkit throws Signal 13 when searching through /var/tmp

On my debian squeeze server in the chkrootkit log I get loads of these errors: /usr/bin/find: Prozeß "head" wurde durch das Signal 13 abgebrochen. /usr/bin/find: Prozeß "head" wurde durch das Signal ...