General :: Perform An E2fsck -y On Only Two Volumes At Restart?
Mar 10, 2011
I want to perform an e2fsck with the y switch (so I dont have to answer yes to every question) on two volumes on a server the next time I restart it. I don't want to do a shutdown -rF because 1) I dont want to check the other volumes and 2) it seems when I do that, the e2fsck doesn't keep restarting itself over and over to fix all the problems. Seems like it runs once, then if it fails it drops you to the repair console in single user mode. I'd rather just have it start the check that will keep repeating over and over right away, because I know it'll take more than one pass.
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Jun 4, 2010
If I issue a shutdown -rF now, it will force e2fsck's on all the volumes when it reboots. But once the checks automatically finish, does it restart normally? I want to run e2fsck's on all my volumes, but dont want to stay the probably 5 hours it will run, so hoping someone knows for sure what happens.
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Mar 10, 2011
Why does an e2fsck restart itself after a while, does it get to a certain number of errors than has to start over from the beginning? are there any tweaks or switches you can use to make it run more efficiently?
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Dec 23, 2008
If one re-boots an openSUSE computer with open Firefox, the Firefox restarts when the system restarts. Actually, every application that was open, restarts.However, sometimes, Firefox does not restart.When I perform ps in bash, I see a few Firefox processes do run, but there is no graphical evidence.If I run Firefox explicitly - stll, no graphical evidence.If, however, I kill all Firefox processes, it can now be started normally.Does someone know a reason for such peculiar behavior ?
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Jul 27, 2010
I have a volume on my server that according to tune2fs is "clean with errors", so i'm assuming I either need to unmount the volume and e2fsck it, or reboot and drop into maintenance mode and do itThere aren't any live samba shares off that volume, so i'm thinking I could do it without taking the server down, as this server is only for samba shares, which are on a different volume.Could someone tell me if I'm taking the right approach? I've never done unmounting and mounting before, but I've read it can be done manually without affecting how the volumes are mounted when a server starts. i'll have to look up the commands.
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Jun 14, 2010
Other than when there are errors in the messages log or when you have file system problems, when should you e2fsck volumes? I have a lot of volumes that have 500GB to 1TB of data on them, and it takes quite a while to e2fsck them, so wondering if its something that should be done regularly, or only when there are actually problems.
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Jul 20, 2010
I have two volumes, both with 800GB total used on them. lets call them /vol1 and /vol2. /vol2 is just a cron'd rsync'd copy of a folder on /vol1 which is a live share for many users.If I temporarily suspend the cronjob doing the rsync's from /vol1 to /vol2, is it safe to unmount and e2fsck /vol2, then remount it somehow?
Both /vol1 and /vol2 say the filesystem state is not clean when i do a tune2fs -l on them both. According to tune2fs both will check themselves upon restart, but if I can do /vol2 since it isn't the live data beforehand, that will cut my downtime in half the next time i restart the server.But I also wonder that if I can do this, then i remount /vol2, will the "not clean"-ness of /vol1 just be rsync'd back over to /vol2 the next time the rsync runs?
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Feb 9, 2011
I know if I do a shutdown -rF now, it will perform an e2fsck on all my volumes with the -y switch. But if I just want to check one of the volumes rather than all of them, and have it use the -y switch so it will automatically answer yes to everything, how can I do that?I'm using RHEL, and have a huge volume I need to run a check on, and I dont want to sit there for the next 24 hours hitting the Y key every time it finds a problem ;-)
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Mar 11, 2011
If I umount both of them, can I run an e2fsck on each at the same time through 2 putty sessions, or will that not really gain me anything from doing them one after another?
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Nov 13, 2010
I want the e2fsck check the filesystem on
every 5th boot.
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Apr 19, 2010
I have a heavily used file server that I want to restart, then if it requires e2fsck's on any volume to run them after it restarts. The only problem is that the server is rarely rebooted, and they said it might kernel panic because its been so long. I've heard there's a way to have it go past the kernel panic if it does happen, but I'm not sure how to do that or the other stuff.If it was a Windows server, I would schedule a shutdown with the force switch, and have the chkdsk's already scheduled for each volume on reboot. But for RHEL, I really don't know.I'm hoping this can be done, so that way I can have it kick off at say 7am, then when I get in at 8am it will probably be near the end of the e2fsck's so I can see what's going on.
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Apr 19, 2010
I have a dell PE1750 server which would not boot up after a power failure. I am thrown to a shell for maintenance after showing an error in file system check. The server was running - Red Hat Enterprise Linux AS release 3 (Taroon). Please let me know if I can try to recover from this error by booting from the 1st CD of a higher version of linux like RHEL5. I ask this because I do not have the old media with which the system was setup. Can the use of latest OS CD cause any problem?
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Feb 27, 2010
i have installed dhcp,there i declared the subnet and network,i used command include "/etc/dhcpd.conf.jutu1"; to start and other files, but it show me this error when i want to restart the DHCP, if you need more information contact me, i have configured this file too jutu1, but it don't let me to restart dhcp from /etc/init.d/dhcpd restart, this show me this message
[Code]..
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Jul 22, 2010
I've been trying to use a find command with -exec to find the differences between identically-named files in different paths. My initial attempt was to do something like this:
Code: find trunk/ -type f -not -path '*.svn*' -exec diff '{}' `echo '{}' | sed 's/^trunk///'` ;
Unfortunately this does not work at all as expected (the diff ends up executing on the same file)! I have narrowed it down to the subshell (inside the ``) but beyond that I have no idea. For some reason the sed, though written correctly, does not perform the substitution. I've changed the diff to echo and played with the sed command and the only way I can get it to perform _any_ substitution is to use .* as the regex. Even s/.*trunk.*/SUB/ doesn't work. Any insight into the inner workings of -exec/subshells/pipes or some crap I'm missing? Don't worry about rewriting the command to make it work; I simply swapped the paths and got rid of the subshell nonsense and everything works fine.
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Mar 3, 2011
is there an easy way for me to get the hardware specs of a linux machine, such as number and type of processors, RAM, BIOS version, # of power supplies, etc from a command line?
I'm dealing with Dell servers, but even if i can just get number and type of processors and RAM config, that'd be great. I know how to easily do it in Windows, no clue on Linux.
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May 10, 2011
Currently I backing up the MBR, the C and the other partitions to an external USB HDD and from there I restore them if needed. I use the SystemRescueCd and commands like dd if=/dev/sd* of=/mnt/PC_name/backupmbr.1 count=1 bs=512 and ntfsclone --save-image --output /mnt/PC_name/PC_name_c.img /dev/sd*1 etc. I want to clone the HDD the way, however, that I omit the external USB drive. I want to connect the new HDD to the PC and do the cloning directly from one disc to the other.
My questions are:
- Can you provide me with the exact command?
- Is that a difference if the disc is SATA or IDE?
- Can I copy the disc even if the old disc don't wan to boot?
The OS is Windows on the disc I want to clone.
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Apr 10, 2011
I need to perform patching on some RHEL boxes.
This the first time i am gonna do this. Kindly advise, how and what are the steps i should take to perform the OS patching.
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Feb 15, 2010
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If this is doable at all, is it possible to accomplish without making use of a personally custom-crafted-and-hosted repository (i.e. can one of the official CentOS mirrors be used)?
Also, I'm not talking about creating an install DVD containing the latest versions of the packages, but rather, if the netinstall media can be used to perform this particular type of installation.
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Mar 20, 2010
I am using debian 5.04 + LXDE. In the past, I sometime encounter problems such as the distro broken after performed a full apt dist-upgrade or upgrade. Now, I am more conservative, I am using apt safe-upgrade.
I want to know are there anyway to do a better safe upgrade for debian without breaking the distro?
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Oct 5, 2010
There must be a way to perform privileged tasks in the Gnome desktop (or actually Nautilus, I guess)...similar to using SUDO in a terminal window.
For example I want to change the rights to a file, but Nautilus tells me I can't because I'm not the owner.
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Aug 24, 2010
Am have a little problem with my ubuntu 10.04 which restarts as i do some task for example..as i am copying...playing music..and any operation task.
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Jul 20, 2010
I'm sure this is possible but I can't figure it out. I have a file formatted like this:
Code:
>SEQUENCE1
FGFD665:?@663:BBBBAA?A@<<4!1004699<7444399>???888455555?AAA?AABBB@@@<<<34
>SEQUENCE2
>&<4!1004699<7444399>???888455555?AAA?AABBB@@@<<<34BBB@@
>SEQUENCE3
???888455555?AAA?AABBB@@@<<<341004699<7444399>???888BBB@@
The odd-numbered lines containing >SEQUENCE# are the headers and the even-numbered lines containing a variety of characters represent DNA sequence read quality scores.
I want to replace all of the greater-than (">") symbols in the quality scores (even-numbered lines) with a "0" but I want to leave the greater-than symbols on the odd-numbered lines alone. I would just use sed -i '/^>/! s/>/0/g' $FileName but sometimes the quality scores begin with a ">" as well.
I'm sure there is a simple modification of a normal sed command with an "n" inserted somewhere but I can't figure it out.
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Jul 16, 2010
What is the difference between a Partition and a Volume in Redhat Linux 5?
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Apr 15, 2010
i want to map my novell server volume in my linux EL-4 system.
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Jan 11, 2010
Anyone know how to remotely boot a server so that a network boot (F12) automatically starts? For example, in Solaris, I can type "reboot -- net -s" (hope i remembered the syntax - been a while! )to reboot my server and begin a network installation without having to be at the console. I am looking for the same in SLES.
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Jul 19, 2010
I am arthritic and I have considerable difficulty with a double click. I also have difficulty when using a mouse of moving the mouse as I select something (click the button) from whatever window I am working with and thereby selecting the wrong thing. To compensate for this difficulty, I use a Logitech trackball and program the center button to perform a double click with one stroke. I am currently struggling with Linux Mint 9 in my search for a Windows alternative. Is there any way to program my center button (scroll wheel) to perform a double click in this or any other Linux version? Alternatively, is there any way to program a keyboard key to perform a double mouse click with a single stroke? I do not want any multiple key combinations for this operation, I want something that works with a single click of one button.
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Jul 30, 2011
Will this:
* * 1 1-12 * #dump -0uf /dev/st0/
* * * * 0 #dump -2uf /dev/st0/
* * 2-31 * 1-6 #dump -5uf /dev/st0/
answer this question?How to create a cron file that will regularly perform the following backups:a. Performs a level 0 backup once per monthb.Performs a level 2 dump one day per weekc.Performs a level 5 dump every day that neither a level 0 nor a level 2 dump is performed. If not, I'm I close? This is homework, so I don't want a direct answer
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Feb 21, 2011
I have a folder named "logs" which contains log files. I would like to have a bash script or a cron job or something like this which will check the folder continuousy and perform some tasks (for example echo "New file is created") every time a new file with pattern like "Screen.log.***" is created in the folder "logs"
Is it possible in Linux?
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Jan 8, 2011
How would I go about encrypting my lvm2 logical volumes on Debian Squeeze? Is it possible without backing everything up to a different drive and restoring afterwards?
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Jun 23, 2011
I've read the first 40% of the RHEL 5 Logical Volume Manager Administrator's Guide, but still have one outstanding, burning question.
During the installation of Centos 5.6, I set up LVM physical volumes, volume groups and logical volumes. I can list these using pvdisplay, vgdisplay and lvdisplay commands.
How would I list what filesystems I have that are using my logical volumes?
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