I'm a little bit confused with partitioning the filesystem in Linux. the difference between creating the file system with fdisk and mkfs (when formatting the disk). I can't clearly tell my problem, so please look at this picture:
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I am just starting out in LINUX and I know the basic commands but I am a having a problem. I scoped the man pages but I can't get it. Maybe one of know... Can anyone tell me the cmd to figure out the system a file was created on? I just can't figure out this problem.
View 6 Replies View Relatedwhich default file system will be created on usb stick using live-helper usb-hdd image?
View 1 Replies View RelatedUsing C++, I want to process sub-folders on my home folder sequentially each with a special naming format and containing some binary files in it:
Code:
1/
2/
3/
4/
5/
6/
...
Give above folders, I will process files in 1/ at first, 2/ at second, 3/ at third, and so on.
For some n/ folder, if I realize that n/ actually does not exist in local file system, I do not want to wait for it. Hence I will keep processing (n+1)/ folder, and so on.
However, when processing some (n+m)/ folder, previously not processed n/ folder may have been created on local file system. In this case, I do not want to miss processing it, but somehow detect its creation and process it. After processing n/ folder, I want to continue from (n+m+1)/.
I've a new external usb drive that was shipped formatted fat32. I wanted to convert this to ext3; so I performed a mkfs.ext3. I then noticed that fdisk was still reporting the usb drive as fat32 (even after reboot), but mount was reporting ext3: so I fdisk'ed the drive and change the partition's system id to 83 (Linux)
View 1 Replies View RelatedHow to find, what are the files (system & user) created after login to the system in RHEL 5.0?
Any single command available?
The output of my fdisk command is as follows :-zodiac@gml-admin:~$ sudo fdisk -l[sudo] password for zodiac: Disk /dev/sda: 160.0 GB, 160041885696 bytes255 heads, 63sectors/track, 19457 cylindersUnits = cylinders of 16065 * 512 = 8225280 bytesSector size (logical/physical): 512 bytes / 512 bytesI/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0xe30ce30c
Device Boot Start End Blocks Id System
/dev/sda1 * 1 1958 15727603+ 7 HPFS/NTFS
/dev/sda2 1959 4752 22437838 f W95 Ext'd (LBA)
[code]...
I've been using *Unix systems for many years now, and I've always been led to believe that its best to partition certain dirs into separate FileSystems, off the main root FS.
For instance, /tmp /var /usr etc
Leaving as little as possible on the main / system.
Its so that you don't fill up the root system be accident, by some user putting in too bigger files in /tmp, for example.
I would presume that filling the / system would not be too good for Linux, as it would not be able to write logs and possibly other things that it needs to.
I believe that if root gets full, then there is something like a 5% amount saved for just 'root' to write to, so that it can do its stuff.
However, eventually, / will become full, and writes will fail.
On top of this, certain scripting tools, such as awk, use the /tmp/ system to store temp files in, and awk wont be able to write to /tmp/ as its full, so awk will fail.
However, I'm being advised that there is no need to put /tmp /var etc onto separate FSs, as there is no problem nowerdays with / filling up. So, /tmp /var /usr are all on the root FS.
I'm talking about large systems, with TBs of data (which is on a separate FS), and with a user populations of around 800-1000 users, and 24/7 system access.
I'm dual booting windows vista and ubuntu hardy on a multi-partitioned Dell D630. I created a partition using mkfs -t ntfs. Linux has no trouble reading/writing to it, but every time I boot into windows, chkdsk tries to "fix" the partition, fails, and tells me that the partition is corrupted. Can anybody suggest a way to convince vista that the partition is indeed ok, or else another way to create the partition so that vista can recognize it?
View 1 Replies View RelatedFrom Ubuntu 11.04 installer. What does this mean? how do I do it correctly?
View 11 Replies View RelatedHow to update newly created partion in RHEL6 without rebooting the system?partprobe /dev/sdaN...does not work here in RHEL6, however it did work in RHEL 5.
View 2 Replies View Relatedcreate one tar.gz file that contains my /home, /etc, /root directory.
a) The process ended with a 88GB file size (which is ok) but with the following message.Code: tar: Exiting with failure status due to previous errors.I have searched a little but I could not find what went wrong.
b) What are the limitations of tar and gz for backups. Of course I fully understand that they can not be used for differential backups (if it is called like that)
c) Let's say that my backup will be a file of 100GB and I want to see the contents of the .tar.gz. In kde there is a program called ark. Can ark handle so big files? Does it use my hard disk (eg. /tmp) to uncompress the file so to show me its contents? It might be the case that might be the compressed file is much bigger than the left space on the hard disk?
d) How can I do an integrity check when my tar.gz file is created?
To be specified,what I want to do is:
if I create xxx.php,#!/usr/bin/env php will be the first line of the file
if I create xxx.py,#!/usr/bin/env python will be added first.
Is there any way to know which process had created any file in Linux Red Hat/CentOS 5?
View 2 Replies View RelatedDebugging some of my scripts after upgrading from Debian Lenny to Ubuntu 10.04. In so doing, I tripped over this "problem," the solution to which may give me a clue to others.
On a bash shell command line I created a file thusly:
sudo touch zero_file
and it lists as expected with default permissions 0644:
-rw-r--r-- 1 root root 0 2011-03-09 11:18 zero_file
But then this command fails
sudo echo abcdef >>zero_file
-bash: zero_file: Permission denied
I can place the command (minus the "sudo") in a script & run it under the auspices of sudo & it works. Am I missing something re the stdin redirection when using sudo?
i created a script file named myscript.shi ran this by typing sh myscript.sh and i got my outputbut,when i tried to execute by typing ./myscript.sh i received permission denied errori gave permission as chmod 777 myscript.shthen i executed by typing ./myscript.sh . It worked fineso i wanted to know whether using sh and ./ with permissions are same.. ?or did it work for only this.. are there any differences
View 1 Replies View RelatedI am looking for a way to be mailed a new file when it is created in a certain directory.I have found tools that will notify me when a file is created, such as iWatch with iNotify, but is there a way to actually be sent the new file when it is created.It is only a short text log file, but I would like to read it in my inbox rather than have to login and open the file each time an event is logged.
View 2 Replies View RelatedI have set up a cron job in linux server using the command 'wget -q -o wget_outputlog url'
But on every run, an empty file being created at root.
How to stop this.
I want to run an executable file during or post linux installation which take input from user and closes on click of "ok" button. The thing i want to accomplish is something like the screen that turn up during the installation, like setting time or selecting some packages and then pressing next button...i want to do a similar stuff like the above said using my applicatio
View 2 Replies View RelatedI created a VM disk image with kvm-img, but I forget what was the max size of that disk image when I created it. Currently, its size is 6.2G, I want to install some large packages in that VM, so I want to make sure the disk image can expand to an adequate size.
View 1 Replies View RelatedI am using ubuntu 8.04
here is what i did
I ran
ffmpeg -i /sumeet/clip/friends introduction song.mp4 -s 160x120 -acodec amr_nb -vcodec mpeg4 -r 30 -ar 8000 -ac 1 ~/Desktop/friends.mp4
now I compared sample video created by mobile file I created above.code...
I can't figure out where to see when files and folders where created on the system. All I can see in Gnome and the terminal is the modification time. I also want to see the last access time.
View 2 Replies View RelatedMy son's laptop with Ubuntu on went belly up, so before we dumped it I salvaged the hard disk.....now some weeks later he remembers there is some things he wants on the disk. Luckily I had done nothing with it ....have just connected the disk to my system I can see everything above(should that be below) home but not anything in his account. Any bright ideas for getting at his data is there a way of mass changing permissions or whatever?
View 3 Replies View RelatedSo I keep getting this error from the 10.10 installer:
"No root file system is defined. Please correct this from the partitioning menu."
However the partitioning menu shows no disks or partitions at all.
The disk browser can however see and mount both partitions from my disk.
It is a terabyte SATA drive and the bios has been set to IDE.
It has 2 partitions with windows installed on the first partition.
Gparted can see both partitions but claims it cannot find the mount point of the second partition. (both are NTFS)
I have attached a screenshot.
How to proceed from here so I can install Ubuntu.
I have a system with 1 GB RAM. I'm running KDE 4. I created a tab to look that the Physical Memory in the System Monitor program, which I assume appears to look at the same stats that "top" looks at. In that Physical Memory tab I have 3 tables: Used Memory, Free Memory, and Application Memory.The Used Memory table shows that the system is using .94 of .98 GiBytes. The Free Memory table shows that the system has .5 GiBytes of RAM free.
However the Application Memory shows that only 339 M-Bytes of RAM is being used.Note that "top" shows the same info.So where is the other .6 GiBytes of RAM that the Used Memory table shows as being used?If I look at the process table which is supposed to encompass all of the processes running, including the ones for the OS, then it appears to add up to the 339 M-Bytes being used in the Application Memory table. Is the rest of the memory being held in reserve by the OS to be used as needed? If so, then why when another application is opened the Free Memory goes down instead of staying constant?I also noticed this memory "black hole" when I was running 11.0 on a system with 4 GB of RAM. The OS appeared to "take up" a large chunk of memory that was NOT being used by any applications and making it "disappear" - meaning that the applications were using about 1.3 GiBytes of RAM and Free Memory was showing only .7 GiBytes instead of the over 2 GB of RAM that should be free.
I'm running Kubuntu Meerkat. If I set skype to start minimized automatically, it seems that it's running but there's no way to get to it. It shows up in the process list but there's no icon for it in the taskbar or anywhere else on the screen. Even worse, I can't just kill and restart it; if I kill it, it just comes back. If I issue the skype command from the K menu or from a command line, I get a complaint that another instance is already running.
View 2 Replies View Relateda server at work has been accessed through the desktop environment as root. I know this is a risk and since I have never done it before I was wondering if there are any files created by the desktop that could compromise the system and how could I clean it up.
View 2 Replies View RelatedI want to know the creation time of a directory or a file. How can I know this?
View 1 Replies View Relatedis there a way i can use mv or another command to move a file to a directory that has not been created yet.Id like to be able to create the directory and move theile in one command. Can this be done? if so how
View 8 Replies View RelatedI can't figure out how to copy a file off a custom RHEL 5 DVD that I created with kickstart after the installation completes and the %post runs. I don't want to run as "%post --no-chroot" because I have a script of system changes that needs to run in chroot. I just want to copy one RPM file into the /tmp so my script can install it. Can I have two %posts, one with chroot and one without? I can't seem to find any RHEL 5.5+ guides for kickstart that can explain to me how to make it work.
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