General :: What Is The Function Of Resize2fs Command
Jun 23, 2011what is the function of resize2fs command and how this command works internally , how it is related to inodenumber or does it format the partition
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General :: Hows The Resize2fs Command Works
Jun 24, 2011i m doing certification in RHCE. i have learn much more in Linux. now i m going towards LInux hardware programming.i had solved enough questions about internal working of commands that r used in Linux. bt i m not understand hows resize2fs command actually work.i kknow this command is used to shrink or extend the partion or file system.but hows that possible.wat is the internal woring of that command.
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Mar 9, 2011What is the difference between ext2online and resize2fs command?
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Feb 28, 2010I have added mkalias in my .bashrc file as I learnt here
[Code]...
General :: Command / C Function To See Cpu Number On Which Process Running?
Feb 22, 2011When I fork multiple processes, is there some command or c function to see the cpu number on which the processes are running?
View 3 Replies View RelatedGeneral :: Resize2fs: Can't Read Next Inode While Trying To Resize
Jan 19, 2010I'm currently in the process of remove a drive from an lvm. I am following this guide
[URL]
and to be honest I have also posted this question at [URL] but I have a fair amount of data at stake here and really need to make sure I'm acting safely. This is certainly not a place to button mash or guess.this is the 2nd drive that I am removing, the first one went off without a problem.However, I just received this error
Code:
resize2fs: Can't read next inode while trying to resize /dev/vg0/lvol0
and I'm not sure what it means or where to go from here. The entire output is
Code:
root@dude:/mnt# resize2fs -p /dev/vg0/lvol0 4466524456k
resize2fs 1.41.4 (27-Jan-2009)
Resizing the filesystem on /dev/vg0/lvol0 to 1116631114 (4k) blocks.
[code]....
General :: Function Having Background Process Inside Command Substitution
Oct 5, 2010The first call to "somefunction" works as expected. The function prints "endfunction" and a process in background sleeps 30 seconds. In the second call I thought it should work in the same way, but the script sleeps 30 seconds before it prints "endfunction".Does someone know the reason of this behavior? Is there another way to do a command substitution of a function that has a background process without have to waiting for that process?
View 2 Replies View RelatedGeneral :: Resize2fs Seems Stuck At Pass 3 (scanning Inode Table)?
Jun 16, 2011I have a machine running Arch Linux (2010, I believe) with a 6TB RAID-5 array hooked up to a Highpoint RocketRaid 2320. I've been having issues with the RAID controller's drivers and the latest Linux kernels thanks to the driver not being open-source, and as a result I am migrating the system to Windows Server.Problem is that the 6TB disk originally was comprised only of an ext4 partition.I shrunk the partition down as much as I could, and added a NTFS partition in the empty space so I could start moving files. That went fine. Problem is that now I need to shrink the ext4 partition again, move files, shrink again, etc. The second run through resize2fs is taking way longer than the first pass.It seems to be getting stuck at pass 3:
[root@nar-shaddaa rc.d]# resize2fs -p /dev/sdb3 863000000
resize2fs 1.41.14 (22-Dec-2010)
Resizing the filesystem on /dev/sdb3 to 863000000 (4k) blocks.
[code]....
General :: Write Script To Use Function And Still Keep Function Active?
Feb 21, 2010the function terminates if no key is pressed for 10 consecutive seconds. I tried using the -t option as suggested in some forums, but my version of showkey doesn't have the option of changing the timeout. The options I get are:
-h --helpdisplay this help text
-a --asciidisplay the decimal/octal/hex values of the keys
-s --scancodesdisplay only the raw scan-codes
-k --keycodesdisplay only the interpreted keycodes (default).
Is it possible to write a script to use this function and still keep the function active until an interrupt is recieved?
Fedora :: Timer Function Through Command Line?
Jan 13, 2010I've been working in a program in BASH and would like to measure its efficiency in different machines. Of course I am able to display the date at the beginning and at the end of its execution, but I'd rather use some sort of timer function to measure in seconds its speed. Is there any timer function available through command line?
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View 2 Replies View RelatedSoftware :: Resize2fs Beeing Stuck Cpu At 0%?
Aug 7, 2011I needed to shrink a filesystem so I could take a drive out of a RAID5 array. I unmounted the fs, then ran e2fsck on it and it found 5.9% non contiguous files but no errors. Then I ran resize2fs -f /dev/whatever 1300G (initial size was 2500G, used space was at this time only 1136G). It started operating and after some hours I received a lot of messages on the output as mdadm started resync in the background. Now the resync is done but nothing moves. Here is the output I received in the terminal window where resize2fs was ran :
Code:
computer:/# e2fsck /dev/stold/storold
e2fsck 1.41.3 (12-Oct-2008)
/dev/st/stor a �t� mont� 68 fois sans avoir �t� v�rifi�, v�rification forc�e.
Passe*1*: v�rification des i-noeuds, des blocs et des tailles
[code]....
I understand that it doesn't do nothing anymore, as it doesn't consume any CPU cycles anymore. What can I do now ? It's running near 24 hours now ! How can I try to escape from this situation without loosing all data ?
Server :: Resize2fs After Adding LVM PV Hangs / Crashes
Feb 4, 2011I'm somewhat a newbie at LVM and have encountered a real problem for me. During resize2fs after extending my LV i ended up with a crash. Now I'm worried I have lost all my old data. How can I proceed to get the volume in working order?
NoFear ~ # lvextend -L+400G /dev/vgftp/lvftp
Extending logical volume lvftp to 4.16 TiB
Logical volume lvftp successfully resized
NoFear ~ # umount /dev/vgftp/lvftp
NoFear ~ # resize2fs /dev/vgftp/lvftp
resize2fs 1.41.10 (10-Feb-2009)
Please run 'e2fsck -f /dev/vgftp/lvftp' first .....
NoFear ~ # e2fsck -f /dev/vgftp/lvftp
e2fsck 1.41.10 (10-Feb-2009)
Pass 1: Checking inodes, blocks, and sizes
Pass 2: Checking directory structure
Pass 3: Checking directory connectivity
Pass 4: Checking reference counts
Pass 5: Checking group summary information
/dev/vgftp/lvftp: 308343/505479168 files (18.3% non-contiguous),
1006593162/1010942976 blocks
NoFear ~ # resize2fs /dev/vgftp/lvftp
resize2fs 1.41.10 (10-Feb-2009)
Resizing the filesystem on /dev/vgftp/lvftp to 1115800576 (4k) blocks.
** CRASH / HANG **
25hours waiting and nothing happens. No disk I/O going on or anything. I have no backups or anything of this volume. What can I do do revert the process to get the disks back? I have not done anything at all after the crash/hang in fear of destroying something.
Programming :: Python - Call Function From The Command Line After Compile The Program?
Dec 28, 2010If i have a python file with a function call_me(a,b),how can I call this function from the command line ,after i compile the program?
View 5 Replies View RelatedSoftware :: Online Resize2fs: Operation Not Permitted While Trying To Add Group #14080?
Aug 22, 2010I am running Oracle Enterprise Linux x64 5.5 on an HP Proliant DL380 G6 attached to various SAN's via fibre channel. I have setup multipath, edited multipath.conf, lvm.conf, and after some trial and error, everything behaves and looks as it should in regard to multipath. However, when I try to resize a multipath ext3 lvm filesystem, The operation runs for a while, but then dies and I get the above error. I then see this error in /var/log/messages:
EXT3-fs warning (device dm-9): ext3_group_add: No reserved GDT blocks, can't resize
-I am only using the /dev/mapper/ paths to the filesystem (ie, resize2fs /dev/mapper/testvol-lvol1 128G)
-if I unmount the filesystem, resize2fs works fine
-Have tried removing and re-adding journal file via tune2fs with no luck
-The VG has plenty of room in it and is composed of a 100GB and 200GB partition.
-Inode resize is on in the filesystem
I am wondering if online resize2fs is only for small filesystems or not recommended as a best practice or just not generally done??? As I mentioned, the operation works fine offline if I unmount the filesystem, but this won't be an option once system is in production.
OpenSUSE Hardware :: Multi-function Epson Stylus Sx218 - Can Not Run The Scanner Function ?
Mar 24, 2011I bought a multifunction stylus sx218 Espon model and I can not run the scanner function. I did some research and found a few solutions and very functional. I hope someone solves the problem. My version of openSUSE 11.2.
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Nov 16, 2010Code:
#include <iostream>
using namespace std;
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Programming :: Passing Data From Interrupt Handler Function To Tasklet Function?
May 18, 2010I am doing some Linux kernel programming for my research project. I need to record the timestamp (by using cpuid and rdtsc) when an interrupt handler (top half) is first invoked. Due to the time critical nature of the problem itself, I have to do the timestamping inside the interrupt handler itself (the first operation when the handler is called). However, I understand that tasks that are not so time critical should be deferred to a tasklet function (bottom half) for processing because other interrupts are disabled in a (top-half) interrupt handler. I am currently out of idea on how I can pass the timestamp information that I have obtained in the interrupt handler to the corresponding tasklet function.
View 2 Replies View RelatedOpenSUSE :: Get Function Set_magic_quotes_runtime() To Function On The Newer Versions?
Mar 30, 2011I'm currently using OpenSuse 11.1 web server. This is bad since 11.1 is no longer supported. the reason why I am using it is because Function set_magic_quotes_runtime() was no longer being used. (so I was told)
That being said, is there a way to get Function set_magic_quotes_runtime() to function on the newer versions of OpenSuSE?
Ubuntu :: Gparted Frozen - Stuck On The "shrink File System...resize2fs"
Feb 8, 2011I'm trying to use GParted from a liveusb to resize my ext4 Ubuntu partition, but it's been stuck on the "shrink file system...resize2fs" for two days straight. The progress bar is still going back and forth, and top shows a lot of CPU activity, but it won't move past this point. I know it's a bad idea to stop GParted while it's resizing, what I can do, maybe a way to check to see if it's actually busy resizing the partition?
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Jun 20, 2010I looked on the net for such function or example and didin't find anything, thus after having made one i guess it would be legitimate to drop it to see what others thinks of it.
#!/bin/bash
addelementtoarray()
{
local arrayname=$1
[code]....
General :: Use Own Function Instead Of Kernel One?
Mar 29, 2010I am developing a function say my_abc() which does the same thing as kernel function abc(). Now I want that instead of using predefined kernel function kernel starts using my function. It might be possible that the kernel function has been used so many places.
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Jun 19, 2010If you set or export an environment variable in bash, you can unset it. If you set an alias in bash, you can unalias it. But there doesn't seem to be an unfunction.
Consider this (trivial) bash function, for example, set in a .bash_aliases file and read at shell initialization.
function foo () { echo "bar" ; }
How can I clear this function definition from my current shell? (Changing the initialization files or restarting the shell doesn't count.)
General :: Pass All Arguments To A Function?
Jul 6, 2010I've got a sticky little problem with a bash script. Please consider the following code:
Code:
#! /bin/bash
processArgs() {
echo "Count = $#"
while [[ $# -ne 0 ]]; do
echo $1
shift
done
}
processArgs $* If I call this script with Code: ./script first second third it'll print each of the argument on a new line - exactly what I would expect. However if I call it with
Code: ./script "Single Argument" "Second-Argument" it splits the first argument in two using the space as a delimitor. The problem appears to be the call to processArgs, where $* doesn't honour the quotes around the variables sent to the script.
General :: Echo Function In .bashrc?
Feb 25, 2010I'd like a function in my .bashrc file that would allow me to pass text to it and echo the text to a specified file. I know it's simple as "echo 'text' >> file," but ideally, I would want to alias the function so I execute something like:
Code:
user~ $ write 'this is a test' with "write" being the function, and 'this is a test' being echoed to the file. I hope I explained that well enough.
General :: Function To Delete A Folder?
Dec 23, 2010Is there any function to delete a folder which has few files in it ?I tried rimdir() bit it can only delete empty folders; unlink() can not delete directory entries. any other function ?
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Jul 15, 2010These days i try make a simple sniffer for a embedded system. and it need the function of dump all the packets into a file, which can be read by wireshark..etc. First i copy a code called simplesniffer.c from the Internet,and and now I want to add the dumpfile funtion to it. i find some problems.Quote:
/* Come from ---- http://blog.chinaunix.net/u/24474/showart_226419.html */
/* simplesniffer.c */
#include <stdio.h>
[code]...
General :: Replacement For Clrscr() Function?
Jan 21, 2011i have been using turbo C for a while to do programing . can u plz let me know the replacement for clrscr() function in linux
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