I have a mdadm RAID5 configuration on my Ubuntu Server (64-bit). In the first week after I configured the RAID, mdadm itself initiated a consistency check automatically. But after that, it won't check the RAID anymore. (the server isn't on 24/7, normally a few hours a day)I've read a post for manually initiating consistency check with these commands
Code:
sudo su -
echo check >> /sys/block/md0/sync_action
[code].....
I had a hard time deleting Wubi from Windows 7.To make sure it all got off, I want to manually check and delete anything Ubuntu and/or Wubi related from my registry, since I did a full install
View 3 Replies View RelatedI have Ubuntu 9.10 installed on my HP desktop, but I'm running an older version (8.10) on a live CD so I can at least get online to ask for some When I tried to log on earlier it went to a command prompt and said the 'file system check failed' and to run fsck manually. I entered 'sudo fsck' at the prompt and I selected "y" to fix all the bad inodes, when it was complete it told me to restart, I then entered 'sudo restart' at the prompt and it said 'sudo uuid unknown'. I have not installed anything recently and I'm not sure what to do.
View 3 Replies View Relatedanytime my external drive gets unplugged improperly, or the laptop shutsdown abruptly (overheating/battery), it's NTFS partition is unmountable. gparted informs me to:
Quote:
run chkdsk /f on Windows then reboot into Windows twice
but i no longer have windows, and would prefer to find a way to restore the drive's functionality without having to visit someone who uses windows every time this happens.is there a way to restore NTFS consistency without windows?
How can I achieve file consistency while using mmap? I have a block of code that needs synchronized access across processes (not threads). Using threads, one can regulate access to the mmaped portion of the file by locking it using a mutex. How can I achieve the same using different processes, some of which run in different programs?
View 2 Replies View RelatedIn Zentyal, it showed me active drives, if the array was degraded, and if there was any syncing happening when the array was building. How can I check that without Zentyal? Is there a terminal command or an application I can install to tell me the same information?
View 2 Replies View Relatedi have created RAID on EDGE server but when i run this command to check RAID status #megacli -CfgDsply -aALL |less
its shows nothing so how can i come to know whether my RAID is degraded or online also in opsview (monitoring tool) i have enable mega raid its shows ok but DISK showing 0
We have a Dell Poweredge 1750 server with 2 harddrives in RAID 1 running Debian Etch. Yesterday one of the hardrives stopped working but no error message appeared in syslog. The only indication was the amber LED diode. Is there a software way how to check that both disks are OK?
View 5 Replies View RelatedI have three raid volumes, md0, md1, and md2. The weekly raid-check cron always causes md0 and md2 to get checked but never md1.
/etc/cron.weekly/99-raid-check
Volumes md0 and md1 are on the same 8 disks. Volume md0 is a small raid1 across all 8 disks for boot and md1 is a raid5 that occupies the rest of those 8 disks. Volume md2 is a raid5 on a separate set of 6 drives. When I check /var/log/messages* I see that every Sunday md0 and md2 get checked but md1 is never checked. However, when I run 99-raid-check manually, all three volumes get checked. There is clearly something different between how crond runs that script and how I run it, but I can't imagine what that would be.
I'm renting a dedicated server with a company that claims that the server has 2 hard drives in a software RAID 1 array, but I need to make sure that the server really has the 2 HDD, and the size of the 2nd drive... how to do that ?? system is Centos 5.3
View 1 Replies View Relatedi have edge server. raid(5) have been installed but not able to check raid health. using command line able to.but using monitoring tool opsview, showing error -NRPE: Unable to read outpumachine Arch- 64 bit centos -5.2
package installed -MegaCli-2.00.15-1.i386.rpm
We are using opsview monitor tool, and created software raid one of our server. now wants to enable raid check in opsview. how to go for it. pleease help.
View 1 Replies View RelatedI'm a bit of a Linux newbie, but I did manage to set up the following RAID-5 system:1x 500GB system drive on ATA IDE4x 1TB SATA drives in software RAIDLinux = Fedora 13So here's what happened. I set up the system to send me an email every time the mdadm stat file changed, so it would send me emails when in periodically ran a self-test. I was away and noticed that the self-test was going incredibly slow (usually took 8 hours...was on course for taking 250 days!) A colleague decided to just reboot the system.Afterwards, the system would not boot and, while all 5 drives were connected, would stop at an endlessly scrolling error message of: Code: ata4.01: exception Emask 0x0 SErr 0x0 action 0x0
ata4.01: BMDMA stay 0x64
ata4.01: failed command: READ DMA
ata4.01: (a bunch of hex numbers)
[code]....
Ubuntu 10.10 32 bit and Mint 10 Julia 64-bit initiate start by itself! When I shutdown computer and the power is off and the Internet cable is connected, it stops working, but after about 30 seconds system initiate start by itself, I mean the power is on. It doesn't happen when the Internet cable is off. Linux 2.6.35-22-generic #35-Ubuntu SMP Sat Oct 16 20:45:36 UTC 2010 x86_64 GNU/Linux Motherboard Gigabyte 945P-DS3
View 2 Replies View RelatedI have one hard disk for my root partition and a disk array on a separate mount point. I rebuilt my disk array, but I didn't delete my original mount points beforehand because I was hoping it would just "pick up". So now when I boot up, the OS tells me that the filesytem check fails because it can't find the array to map to the mount point. I know that I need to edit my /etc/fstab and remove the line that defines my mount point on the disk array. But it appears to be read only filesystem when I am in repair mode. I can't force the write with vi.
View 3 Replies View RelatedCould any RAID gurus kindly assist me on the following RAID-5 issue?I have an mdadm-created RAID5 array consisting of 4 discs. One of the discs was dropping out, so I decided to replace it. Somehow, this went terribly wrong and I succeeded in marking two of the drives as faulty, and the re-adding them as spare.
Now the array is (logically) no longer able to start:
mdadm: Not enough devices to start the array.Degraded and can't create RAID ,auto stop RAID [md1]
I was able to examine the disks though:
Code:
root@127.0.0.1:/etc# mdadm --examine /dev/sdb2
/dev/sdb2:
Magic : a92b4efc
Version : 00.90.00
code....
Code:
mdadm --create --assume-clean --level=5 --raid-devices=4 /dev/sda2 /dev/sdb2 /dev/sdc2 /dev/sdd2
As I don't want to ruin the maybe small chance I have left to rescue my data, I would like to hear the input of this wise community.
to initiate/trigger a key stroke in Linux, as if the user has pressed those keys?
View 4 Replies View RelatedI am working on ubuntu (Xubuntos) using VMware virtual machine. when I enter apt-get update it gives following error;
Code:
xubuntos@xubuntos-tinyos:~$ sudo apt-get update
Code:
Err http://tinyos.stanford.edu edgy Release.gpg
Cannot initiate the connection to 3127:80 (0.0.12.55). - connect (22 Invalid argument)
Err http://tinyos.stanford.edu edgy/main Translation-en_US
[Code]...
Is there an easy way to log the names of the actual processes that initiate, let's say, outbound connections from the Linux machine, for instance track what process initiates an outbound connection to MySQL port to remote machine and stuff like that?
View 3 Replies View Relatedwhat the command is for the System Tray, so thought I'd ask here. Note I am not asking how to put a system tray on the panel - I know I can add a notification area, but when I reboot there will be 2 of them, so this is not what I want.
I just need to be able to initialise it when it fails to load. Since my upgrade to Lucid, this has happened a couple of times, so expect it will happen again soon enough.
I have an Acer one with this peculiar operating system which I don't understand. I have had it a couple of years and it has hardly been used. It has always worked well and connected up to my WiFi until today when after it has booted I get 'internal fault. Hal has failed to initiate' and the Wifi connection does not work. I am perfectly familiar with Windows but I haven't a clue with this one. Have found a post on this forum relating to this fault but I am afraid it was double Dutch to me. I don't even know how to access it's inner system let along enter any commands.
View 4 Replies View RelatedI usually use wget to download stuff from websites when scripting.I have a new requirement that requires me to authenticate then select some options to execute the download. How would I go about this? First thing that comes to mind is using keyboard macros in the Windoz world but I need to do this in bash or perl.
View 1 Replies View RelatedI've got a wireless problem on my laptop (dell inspiron 6400).I don't know when exactly and why, but every time I watch a video on ..... or allostreaming, after a while (a few minutes), my wireless disconnect and it's impossible to get back any connexion. The only solution I have is to reboot my computer.
the command : iwconfig shows :
Code:
lo no wireless extensions.
eth0 no wireless extensions.
wlan0 IEEE 802.11abg ESSID:"Callalc"
code....
Dec 18 18:33:18 yannick-laptop wpa_supplicant[1390]: Failed to initiate AP scan.
1. I am using CentOS 5.4 and I try to use inittab at the etc/inittab to initiate a program at startup
2. Below is my script and saved as heritrix.sh
#!/bin/bash
export HERITRIX_HOME=/root/heritrix-1.14.3
cd $HERITRIX_HOME
chmod u+x $HERITRIX_HOME/bin/heritrix
$HERITRIX_HOME/bin/heritrix --admin=LOGIN:PASSWORD --port=9090
3. I did the chmod +x for the permission already.
4. I not confirmed whether it is running at startup.
5. the script is no problem as I have check it
I have a raid5 on 10 disk, 750gb and it have worked fine with grub for a long time with ubuntu 10.04 lts. A couple of days ago I added a disk to the raid, growd it and then resized it.. BUT, I started the resize-process on a terminal on another computer, and after some time my girlfriend powered down that computer!
So the resize process cancelled in the middle and i couldn't acess any of the HDDs so I rebooted the server.
Now the problem, the system is not booting up, simple black with a blinking line. Used a rescue CD to boot it up, finised the resize-process and the raid seems to be working fine so I tried to boot normal again. Same problem. Rescue cd, updated grub, got several errors: error: unsupported RAID version: 0.91. I have tried to purge grub, grub-pc, grub commmon, removed /boot/grub and installed grub again. Same problem.
I have tried to erased mbr (# dd if=/dev/null of=/dev/sdX bs=446 count=1) on sda (ide disk, system), sdb (sata, new raid disk). Same problem. Removed and reinstalled ubuntu 11.04 and is now getting error: no such device: (hdd id). Again tried to reinstall grub on both sda and sdb, no luck. update-grub is still generating error about raid id 0.91 and is back on a blinking line on normal boot. When you'r resizeing a raid MDADM changed the ID from 0.90 to 0.91 to prevent something that happend happened. But since I have completed the resize-process MDADM have indeed changed the ID back to 0.90 on all disks.
I have also tried to follow a howto on a similar problem with a patch on [URL] But I cant compile, various error about dpkg. So my problem is, I cant get grub to work. It just gives me a blinking line and unsupported RAID version: 0.91.
migrate an installed Ubuntu system from a software raid to a hardware raid on the same machine? how would you go about doing so?
View 1 Replies View RelatedI'm running the following code to initiate semaphores:
Code:
int init_semaphore(key_t semkey, int nsems)
{
[code]...
I have installed Ubuntu on my m1530 since 8.04 and currently dual boot Win7 and 10.10. I would like to dual boot on my PC, but I have run into a problem. I am not a pro at Ubuntu, but this problem I can not solve by reading forums like I have in the past.
I realize this is a common problem, but I have noticed people having success.
I have a M4A87TD EVO MB with two Seagate drives in Raid 0. (The raid controller is a SB850 on that MB) I use the raid utility to create the raid drive that Windows7x64 uses. I have 2 partitions and 1 unused space. Partition 1 is Windows, partition 2 is for media, and the remaining unused space is for Ubuntu.
I am running ubuntu-10.10-desktop-amd64 off a Cruzer 16GB flash drive that was installed via Universal-USB-Installer-1.8.1.4.
My problem like so many others is that when I load into Ubuntu, gparted detects two separate hard drives instead of the raid. I read that this is because kpartx is not installed on 10.10. I then went in LiveCD mode and downloaded kpartx from Synaptic Manager. Gparted still reported two drives. I opened terminal and run a few commands with kpartx. I received an error. (Forgive me I didn't write it down, but I believe it said something about a communication error. I will try again later and see.)
Currently I am reflashing the Cruzer with a persistence of 4GB. I am not familiar with this process, but I understand that my LiveCD boot will save information I download to it. I decided to try this method because I was going to install kpartx and reboot to see if this made a difference.
I am looking for any suggestions on a different method or perhaps someone to tell me that the raid controller or some hardware isn't supported. I did install ubuntu-10.10-alternate-amd64 on my flash drive, but fail to get past detecting my CD-ROM drive since it's not plugged in. If this method is viable, I will plug it in. I also watched the ..... video were a guy creates Raid 0 with the alternated CD, but it wasn't a dual boot and didn't use a raid controller from a MB.
I am new to Debian but not Linux-based systems. I have been experimenting a lot with Debian Lenny/Squeeze. I am growing more comfortable each day with the Debian design. Yet there remain many unexplored areas. I am creating a migration check list. Things to check, prepare, or reconfigure when moving from one Linux-based system to Debian.
I have a good computer background and my current check list probably is fairly good. Yet I would appreciate input and opinions from experienced Debian users of things to watch in such a migration. Login defs, passwd/group files, different directory locations, keymaps, services and daemons, etc. I am not too concerned with the desktop as I plan to stick with KDE 3.5 for a while and I can basically move those settings across.
I want to put check menu & check list in utility dialog.i dont know how i do this
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