Ubuntu :: Can't Dump / Restore A File
Feb 18, 2010
I got a backup file which first 1000 bytes are as follows:
Code:
00000000 54 41 50 45 00 00 03 00 8c 00 0e 01 00 00 00 00 |TAPE............|
00000010 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
*
00000030 02 00 87 05 51 64 50 48 01 00 00 00 01 00 00 00 |....QdPH........|
[code]....
I tried to restore it:
Code:
$ restore -r -f zzz_labxxxx
Checksum error 32615101403, inode 0 file (null)
restore: Tape is not a dump tape
What application could I use or even try? The man who made the backup can't be reached anymore and we had been left with the backup.
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Sep 7, 2010
I am still new in linux (Redhat) i used dump command to backup the root of the linux server: #dump -0u -f /dev/st0 / the command is achieved. how to restore this dump.
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Oct 7, 2009
I want to generate core dump files from my program when it crashes. Its a pretty big process and has about 10-11 threads in it.I have followed the documentation to enable core dump by setting ulimit to unlimited etc. I quickly tried "A demo program creating a core dump" from the following webpage, which succeeds in Segfault and dumping a core file in the directory that I configured.However, I tried running my original program and caused it to crash. I did this by making calls to kill(), raise() or the same null pointer access as shown in the webpage above. In each case, my program crashed but did not generate a core dump file. Am I missing something?My program is in C++ and my environment is Redhat 9.0 (kernel 2.4.20)
Going through the "Why do I NOT get a core dump?" section on the same webpage as above, I can see two potential problems. One - there are issues with the suid/sgid (bullet # 6). I am not able to change any settings with suid because my system does not contain either /proc/sys/fs/suid_dumpable or /proc/sys/kernel/suid_dumpableTwo, my program has threads in it and the bullet # 8 is the problem.
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Jan 12, 2010
Need confirmation if the following scenario works for making my client and server as identical?
My local(source) Linux server @192.168.0.2
My remote Linux client @192.168.0.70
On the local system :
#df -m
Filesystem Mounted on
/dev/hda3 /
/dev/hda1 /boot
tmpfs /dev/shm
On the local system , issue the followings to make client and server as identical :
#dump -0uvf - /dev/hda3 | ssh root@192.168.0.70 -c "restore -rf - /"
#dump -0uvf - /dev/hda1 | ssh root@192.168.0.70 -c "restore -rf - /boot"
#dump -0uvf - /dev/shm | ssh root@192.168.0.70 -c "restore -rf - /tmpfs"
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Sep 6, 2010
I have used Dump Command to dump the application files. For Full backup the level 0 is working fine. For incremental backup I used the level 1 or 2 it is getting the error as
DUMP: Only level 0 dumps are allowed on a subdirectory
DUMP: The ENTIRE dump is aborted.
The code I used
===============================
#!/bin/bash
#Full Day Backup Script
#application folders backup
#test is the username
now=$(date +"%d-%m-%Y")
[Code]...
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Mar 17, 2010
I have a script (below) which works ok, but I have tried to modify it as I want to keep the older files for a restore if needed. I have tried adding a date suffix to the newly created files (second lump of code), but it doesn't seem to work.I get the error:
$SOURCEDIR/p1db_$DATEVAR.sql: ambiguous redirect
The working original script:
Code:
#!/bin/bash[code].....
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Oct 21, 2009
How to create a dump of an existing file and how to restore it with command line?
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May 13, 2010
We are going through the motions of testing the backup and restore configurations of our postgres database. One idea was testing the viability of the dump file. Does anyone know of a way of testing the dump file to determine if there is any corruption in it
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Jul 1, 2011
Doing this: mplayer dvd://1 -v -dumpstream -dumpfile dump.vob Gives me all the audio tracks, but not the subtitles. How can I go about getting the subtitles to be included in the file dump.vob? I've tried something like: mplayer dvd://1 -v -sid 5 -dumpstream -dumpfile dump.vob (where -sid 5 was the correct subtitle) but this does not work. I'm going to use mencoder to make an .avi file (with subtiutles, obviously), so I could, as a last resort, use some other program that extracts the subtitles (suggestions?).
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Dec 15, 2008
I'm having trouble trying to get a thread dump for tomcat. I have tried the following and none seems to work:
kill -3 <pid>
kill -QUIT <pid>
killall -3 java
Nothing shows up on screen. I also tried putting the out of the dump to a file with the > command but the file is blank.
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May 22, 2010
Does the dump command back up entire file-systems or is it capable of backing up subsets of a file-system? And is tar capable of taking device names (for file systems) as input to be archived?
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Nov 12, 2009
i just touch linux, may i know how can i convert the core dump file to a readable textfile, which include all the information, which is in core dump, such as all variables, threads information, call trace for each tasks, and so on. i know use the GDB can view this, but it won't dump all the informations to one text file. but sometimes, people want to view the core dump reason without Linux environment.
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Mar 20, 2011
I have a problem with a script i wrote, the script runs fine if manually executed however it doesn't run *fully* when executed via cron
here's the script :
Code:
#!/bin/bash
FILENAME=mysql_full_dump_`date '+%m.%d.%y'`.sql
`which mysqldump` --all-databases -uroot -p************ -h127.0.0.1 > /root/$FILENAME
RETVAL=$?
[code]....
the script resides in /root/bin and the cron entry is as follows:
Code:
0 0 * * * root "/root/bin/mysql_daily.sh"
the result is the .sql file, but it doesn't archive it.
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Jun 15, 2011
I am browsing our repository and I want to get this folder but all of the files there have ",v" in the end of their filenames and if you open each file, they have some written data which are headers for version control before the actual content of the file. I want to extract the actual content to make the file my_file.c,v --> my_file.c. Is there a command to do this?
I am having lock error and permission errors so I cannot checkout manually using CVS.
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Jun 30, 2010
a collegue has done this for a shell script > test1.sh .lolnow i must rewrite the script.do you have any idea to find my script?
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Jun 7, 2010
i initially installed ubuntu, working with gnome for a while. i now migrated to kde as i like it better. however, the kde session still has lots of the "old" file associations set as they are in gnome...
some examples? text files open in gedit, instead of kate pdfs open in "document viewer" instead of okular double clicking zip folder opens the "archiver" (gnome?), extracting an archive from the archiver and then pressing the "open folder" dialog after extracting has finished, opens nautilus (although dophin is the default program for inodes). etc.
i'm aware of the possibility to edit file associations, however thats a tedious thingy to do, if you want to get it complete... furthermore, the file association edit dialog has the "defaults" button disabled, hence my questions:
is there any way to "restore" the kde default file associations, just as i would have installed kubuntu initially? i don't want to reinstall just because of this.
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Feb 10, 2011
I'm using ubuntu for a few weeks now and i created a backup script that can copy some folders into a .tgz file. Now i want to place back the folders to where they come from and overwrite the original folder. like the /home folder in the .tgz file overwrite the /home folder on my harddrive. I already tried to do this with: tar xvpfz filename.tgz. But after that the folders came in the same folders as the backupfile stands.
How can i do this the right way?
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Jun 25, 2011
By naming one of my folders wrong I thought I don't need it anymore and pressed delete button while holding shift. Is there any way I could get that folder back? (I'm actually looking for the file inside that folder - .conky config file to be more precise) I've tried scalpel and extundelete, but none of them worked.
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Sep 18, 2010
I was doing some experiment about resource-accessing. By mistake, I executed this command,$ sudo mv /etc/passwd /etc/passwd.bakThen I could not execute any command with privilege(eg. sudo mv /etc/passwd.bak /etc/passwd). When I shut the system down, I could not boot it any more.
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Mar 10, 2010
I accidentally deleted one of my very important folder using the command:
That is a very important project done in Plone( a CMS ) is any way to recover my Folder.
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Mar 20, 2011
I have a HP DV9000 laptop. The second hard drive bay doesn't support SATA II devices. I was cloning the original hard drive to the newer SATA II hard drive I purchased two swap them because bay 1 does support SATA II devices. I decided to use
Code:
dd if=/dev/sda of=/dev/sdb
to get the job done. I double/triple checked my command with fdisk -l, but my dyslexia got the better of me. I should have ran
Code:
dd if=/dev/sdb of=/dev/sda
....
I stopped the command about 1/2 hour in, it is a 160GB hdd. I tried using foremost to recover all of the files that hadn't been written over yet, but it can't recover Quicken filetypes. The ONLY thing I need off of this drive is the Quicken database. TL;DR I need to recover a quicken database file off my corrupted partition. What program can I use?
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May 7, 2011
are there any sweeper / cleaner apps which can take back my installation as to when it was new. I know home directory could have config files etc..but that doesnt matter, i want all packages and applications reset to how it was when i had a clean install. I am using Natty
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Aug 27, 2011
I am about to repave an FC14 box with FC15. To save a bit of mucking about, I would be keen to restore, from backup, the file(s) needed to reactivate my WiFi connection under FC15. I can always rebuild from scratch, but recovering from backup would prevent finger fumbles from making the task harder, as I have a long-winded 128-bit key.
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Jan 25, 2010
I am trying to restore a tar file that contains a directory I cannot nor want to restore. How can I explicitly state the name of the directory? command I am using:tar -xzvPXf <tar file name>.tgz exclude-file=<directory>I have tried it with the exclude-file before the tar file name and same results. No restore.
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Apr 13, 2010
O/S: Fedora 12
I am newbie in linux. What I want to do is: Make backup for my file system, cos I learn how to configure servers. So if I made some thing wrong, I want to be able to restore the default setting for my files. Instated of install new O/S.
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Feb 19, 2011
I accidentally deleted the file called "fstab,v" not "fstab" The files location was /etc/fstab,v if it is very important file and what its used for & how to restore?, as my server seems to be running fine, but I don't want to get into any problems later down the line.
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May 4, 2010
I'm setting up a server with Jaunty Jackalope version. I'm trying to test setting up a basic iptables rules... No matter which command I put in, it is failing on the first command when I run iptables-restore < file location (the first rule always fails). I'm doing this on the root user and first typing in the iptables rules in a test file. I've tried the first command starting with % sudo, iptables and -A. All have the same result. I've also tried letting the HTTP rule be first with the same result.
[Code]...
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Jul 1, 2010
System Specs:
CPU: Intel Core2 Quad Extreme X9450
Memory: 4GB, Patriot DDR3 PC3-10666 1333Mhz
MoBo: ASUS P5E3 Delux
OpSys: Ubuntu 10.4 (64Bit)
Short Description: I wanted to see what would happen if I upgraded from Kubuntu 8.04 (32bit) to Ubuntu 10.4 (64bit) by copying my home directory then restoring it after the upgrade. It almost worked sans a few interesting problems that I'm hoping might teach me a bit more about how Ubuntu works.
Detailed Description:
1. I copied my home directory to another hard disk.
2. I let the installation disk for Ubuntu 10.4 (64bit) reformat and overwrite the disk that contained Kubuntu 8.04 (32bit) and chose to maintain the partition and swap size for that disk.
3. Once I worked out some bugs in the hardware and got the OS up and running smoothly, I "merged" my home directory with the backup I had created in step one. (Merge was an option given to me when I was attempting to paste the files copied from the backup disk.)
4. It should also be noted that I was trying for a while last night to install TrueCrypt. In order to do that I had to check its "sig" file. The GUI for the gpg installation was complaining that I didn't have gtk+-2.0 installed so I installed gtk (I think it might have been 2.4 or whatever the most recent one was) from source without any errors. It got late so I gave up on attempting to install TrueCrypt any further.
The Results: This morning the computer seemed to boot faster than it had been before, but I was left without a functioning Theme manager. It will open, and I can click on all of its features, but nothing seems to do anything. For example: If I right click on the desktop and choose "Change Desktop Background" Then select "Get more themes online", nothing happens. Also if I select the "theme" tab, there are only two themes listed when there used to be about 9 by default.
Questions: 1.) Is there a way to restore the files that are important for correct system operation (possibly all the files starting with a dot ".*") in my home directory to there default state like they would have been from a fresh install, but without doing a fresh install and without loosing any of the documents or archives in my home file?
2.) Is this even the correct approach or might this cause more problems? For example, if your computer had this problem would you try and restore the home directory, or would you troubleshoot each problem as it arises one at a time until everything became stable?
3.) What could I do next to continue troubleshooting the theme manager?
I'll keep researching and trying to find some links that can help while I wait for your responses. If I find anything that helps I'll post the fix here.
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Jan 27, 2010
what could this bei saved my correct iptables file @ Code: /etc/iptables.up.ruleswhere webmin is looking for it.webmin config is to automaticly boot this file and addes a line at.
Code:
/etc/network/interfaces
file
[code]...
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Apr 10, 2009
I seem to have removed / moved / deleted my /etc/apt/source.list file and was wondering where or how can I locate them again on the web? Is there a place online that has the default repository listings for 'Etch' & 'Lenny'? I did not lose them on both but this is something I would like to know in case it ever happens to me. Seems like this would be something easily available on the web but I can't find it on Debian's site and or via Google.
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