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Questions in Linux
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How to get summarized sizes of folders including their subfolders?
Well there are few ways to achieve this, here are two: du -sh /* This will spit out a summary for the
10701 views
How to duplicate / copy GPT partition table?
sfdisk doesn´t do the trick on GPT tables, so this will not work. This is also easy, we need to install aptitude
15094 views
How to skip or bypass fsck on reboot / system startup?
There are a few ways to make this happen, the simplest way is to reboot the machine with this command: shutdown
20687 views
How to clean drives from software raid (mdadm)?
Software raid is really great in Linux, but once you need to repurpose old drives,or lets say some other implementation
17834 views
How to restart network card auto-negotiation?
This might be necessary some times, here the line to do it with ethtool: ethtool -r eth1 And here with mii-tool: mii-tool -r
15562 views
How to change speed / duplex setting of a network connection?
Well, you can do this with mii-tool or ethtool, both should be working nicely. On Debian to install those, run
31293 views
How to display environment variables?
This is also pretty simple: printenv
11602 views
How to edit a very large file?
I had to remove one line of a 20GB MySQL dump file and was wondering how I could do this. Actually
16096 views
How to fix mdadm / mdraid resync=PENDING or auto-read-only?
This happend to me when I created a new md device and checked for the status in /proc/mdstat.The problem is
31108 views
How to repair GRUB with a live cd?
There are many things that could go wrong with a GRUB installation and one way to get the system booting
15293 views
How to change crontab email setting ( MAILTO ) ?
This is quite easy, just add the MAILTO line to your crontab, preferable to the top, so config parameters stay
30421 views
How to duplicate / copy partition table?
In Linux there is a small helpful tool for this, called sfdisk. It is able to diplays and manipulate the
14430 views
How to fix "Internal error: Berkeley DB error for filesystem"?
After working with the subversion system pretty flawlessy for years (as standalone service and within apache), I had this problem
13677 views
How do I upgrade from Debian Lenny to Squeeze?
Here you go: (please do that in textmode and not in your GUI, so KDE or whatever can be restarted without
16216 views
How to convert an ext3 partition to ext4?
Well, this is actually not too hard and ext4 gives better performance in various cases, so an update to ext4
14335 views
How to undelete removed/deleted files on an ext3 / ext4 fs?
Here is a new tool that will help you with recovering files from an ext3 or ext4 partition:http://extundelete.sourceforge.net/
14601 views
How to install Debian Lenny from a USB stick?
Hi there,the only hard thing here is preparing the USB stick, but actually the Debian guys took care of most
16184 views
How to stop ssh brute force attacks?
well, there are a few way, the way of my choosing is to just use the recent module from iptables: iptables
13723 views
How do I convert an ext2 to an ext3 file system?
first of all: check if your kernel supports ext3!(most kernels since 2006 do that anyhow, so you should be fine) optional
14202 views
How to undelete removed/deleted files on an ext3 fs?
Well, there are three ways I know and have succeeded so far: Follow this instructions: http://www.xs4all.nl/~carlo17/howto/undelete_ext3.html the other way is to scan
13953 views
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