Slackware :: Set The Journaling Mode Into Data=journal Mode Of Ext3
Jan 12, 2011
I was reading about ext3 feature and I have read about its journaling modes. I would like to ask what is the default journaling mode of ext3 fs in slackware(or is it in all distro using ext3)? I'll install slackware when my new pc arrive and the fs I will use will be ext3 and I like it to have data=journal mode for its journaling. I have read in some wiki how to set the journaling mode into data=journal mode.
Code: # tune2fs -O has_journal -o journal_data /dev/sdXY Do i need to issue this command or is this the default mode in ext3 in slackware?
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Jan 20, 2010
At boot time, before entering Runlevel 3 the HDD will go mad when mounting tmpfs on /dev/shm...
Code:
EXT3 FS on sda1, internal journal
EXT3-fs: mounted filesystem with ordered data mode
/dev/sda1 on /boot type ext3 (rw)
tmpfs on /dev/shm type tmpfs (rw)
INIT:Entering runlevel 3
It will go on and on at the tmpfs on /dev/shm type tmpfs (rw) until i press ctrl-C...then I will stop whatever it is doing, let the hdd rest a bit, and resume normal boot..
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Aug 30, 2010
Below is a print out of my partition Table from Fdisk, in Cylinder mode, Sector mode, and then in expert mode?
Why in expert mode does it look like Partitions 2 and 3 share the same sector / hd / Cylinders? Is this OK?
Code:
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Apr 10, 2010
I have a 500Gb external disk (esata) used a part of a backup cycle. I tried to mount it for the next backup cycle and an i/o error was detected in the ext3 journal. I fixed the bad block but that lost the data in the block and ran fsck.ext3. This resulted in a damaged file system message and a scan of the disk and fsck finished ok. The disk mounts rw. I am not really sure if I should reformat this disk. I have copied the backups off the disk and in any case there are later backups. Reformatting is not a problem but takes time and I would prefer not to do it if it is not required but I want a clean file system
openSUSE 11.1 X86-64
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Dec 17, 2010
I'm still quite new on linux .. so please accept my question, even if I'm asking something stupid The fact is that I created some months ago a partition of 50 Gb to store my data and I used an ext3 filesystem with journal .. and the journal was about 1 Gb I thinkNow after a few months of usage I moved all my data to a new device and I noticed thapartition was completly emptied, in fact there was still about 10 Gb occupied.All data was moved away, so I think this might be the journal.
Now a few questions:1) Is it normal for a journal to occupy 1/5 of a device? 2) Is there a command or another way to free up the space occupied by the journal?3) Is there a better option in order of filesystem? Maybe it's better to use another one?I usually use ext3 for the system partition and for data storage partition,then I have a partition into where I store clonezilla images for backup purposesand I decided to use reiserfs for it in order to have more space available,even because it's always unmounted and I access onto it only for backup activities
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Apr 23, 2010
how do I make grub boot to allow me to choose, like safe mode and normal mode and all that second, how do I do automated back ups (preferably using file copy) for something like every sunday at 11:00 am using the command line, i use to know but forgot.
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Nov 18, 2010
I attempted to install Catalyst 10.11 for my ATI HD 2600XT and the system now only displays lines and a large block of pixels where the mouse would go. CTRL-ALT-F1 kills the system and does not provide a command prompt. This is a single installation, not dual-boot, but there is no Press Esc to access the Grub menu during startup so I cannot choose safe mode. I attempted to get into Recovery mode using the flash drive that I used to install the system and it tells me there is no Recovery kernel (I used the 64-bit Desktop installer, not alternative). Does anyone know an alternative to get into the Grub menu other than ESC during bootup? Alternatively, do I need to download the 64-bit Alternative ISO and create a new boot disk with it so I can access Recovery mode? Is there something else I'm not thinking of?
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Dec 1, 2010
My linux workstation recently crashed. After rebooting, Linux (Red Hat 5.3) will not boot properly and automatically went into emergency mode or recovery mode i think. I can still see my /home/user/ and all the files inside.I boot from CD to rescue mode and tried mounting read-only the /dev/sd5 which contains the files in the crashed hard disk to try to copy out my files but mounting was unsuccessful (invalid argument). I checked the filesystem type using fsck -N /dev/sda5 and shows it to ext2. i tried to mount another known working hdd and was successful.
My question is why in emergency mode, the crashed hdd is able to be mounted automatically as read-only but cannot be done in rescue mode thru a bootable CD?Is there any special mount options used in emergency mode?I also cannot copy out in emergency mode booting from the crashed hard disk as everything is read only.
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Sep 21, 2010
I ordered this USB 802.11n dongle for about $10 and am having problems.I found a firmware related bug (Bug #595455) that keeps it from working out of the box and got around that. I put the right firmware file in the right place and CAN CONNECT TO B or G Access Points.hen I put my AP in N-Only mode, I can see the network, but cannot associate. With the AP in mixed mode I can Associate using G.The most interesting thing I found was something that had very
few google hits (like 4). In the dmesg output after associating I see the message:
Successfully associated, ht not enabled(0, 1)The most interesting thing about this is the (0, 1) at the end.I don't know what that means but it seems like a clue as to what the problem is.This device uses the realtek chipset 8191S, there are conflicting reports on this, but all the reported possibilities seem to use the same driver from realtek (rtl8712_8188_8191_8192SU_usb_linux_v2.6.0006.2010 0625).Here is some random info:
Dmesg output:
[85082.620027] usb 1-3: new high speed USB device using ehci_hcd and address 6
[85082.754586] usb 1-3: configuration #1 chosen from 1 choice
[85082.755456] ==>ep_num:4, in_ep_num:1, out_ep_num:3[code]........
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Jan 2, 2010
I played with the graphics in kde4 and seem to have losy my installation. i have tried the rescue system option, recover system options and in desperation (i was just about to reinstall) tried booting in failsafe mode, and it worked!
where do i go to find out what the problem is regarding the normal boot mode? i think my pc is starting to resent the continual use of the reset button!
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Jan 30, 2010
I installed ubuntu 9.10/9.04 on my usb key as live image couple of time. I have trouble when I try to install wine on my usb key. I am wondering what is the difference if I install my ubuntu into my usb key directly? will that be slower compared with live CD mode? I guess live CD mode may use memory as part of harddisk to save temepory files and normal usb linux installation won't do this for me. Is this true?
If so, do I have a choice to point my tmp directory to system memory area?
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Feb 8, 2011
When I first installed ubuntu 10.10, the display was for some reason tinted green and shifted a few inches to the right. After experimenting with the resolution preferences, I eventually got it to a large resolution (1280x720 ... or something like that) yet is was quite blurry. I found out that the problem was with my monitor after I switched it to TV mode, then back to PC mode. It became perfectly clear! All I had to do then was adjust the screen positioning by shifting it left a bit.
Even though I have made the resolution I figured out to be default, whenever I turn the PC on after shutting down, it goes back to the "green-and-to-the-side" mode. :/ Ain't really a big problem, until I tried to fiddle with the resolution preferences s'more.
Somehow, I have set it to be twice as wide of the maximum my monitor can display, went back to being green tinted for some reason, and is completely shifted left (yet the right side is still visible) This means that I cannot see what is going on the left side, and cannot adjust the resolution preferences, nor can I click blindly cuz the border is only around my visible side of the screen. Now it is stuck like this.
I've researched many hours and eventually found the terminal command for the resolution preferences. it popped up on the visible side. Although it was to no avail cuz I HAVE TRIED EVERY SETTING AND OPTION and absolutely nothing changed. I assume a system restore would simply revert it back to the previous satisfactory settings, but the thing is I want to FIX it. I am new to this terminal stuff, so I want to learn it and all that. To put it simply, here's what I want:
Learn how to manually adjust resolution without depending on a simple dialog box. Make the satisfactory resolution default and consistent through turning it on and off. Link that could teach me the essential commands, all this googling is stressful. D:
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Sep 14, 2009
The system always boot up in Graphic Mode. After installation of Web Server, I want to disable Graphic Mode and change it to boot to Text Mode to save memory. Is there a way to disable graphic mode?
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Jun 13, 2011
I am an emacs user, and I noticed that on my new machine (running F15, 64bit) flyspell-mode will not work in tex mode.
I get errors that look something like this:
Code:
Spell-checking inequality-model.tex using hunspell with default dictionary...
Spell-checking region using hunspell with default dictionary...done
ispell-send-string: Process ispell not running
When done with a buffer, type C-x #
code....
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Dec 7, 2010
I accidentally chose the "recovery mode" and now i dont know what to do. What commands i have to enter to go back to normal ubuntu mode with graphic etc?
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Mar 10, 2011
I need boot in emergency mode (not single user mode), from docs:
[URL]
in red hat enterprise 5 it's ok, not in red hat 6.
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Feb 2, 2011
I have a system running CentOS 5.5 (194.32 Kernel) that has been working fine for about 8 months. I found it stuck one morning dumping a Soft Lockup Kernel message every 10 seconds and have been trying to find out what is going on - here is what I've done and found.
System is a Core i3 with 4Gb DDR3 ram and 2 1.5Tb SATA drives - everything is less then 1 year old with not too much load (this is a backup system for my server - a twin and the other works fine)
Intel Mobo: DM55HC
Rebooting the system (after doing a fsck on the drives with lots of errors) it runs for about 20 hours or so and then drops back into this problem.
Prior to going into the soft lockup it reports that the Journal has aborted on one drive or the other and drops into a Read Only FS.
There is nothing in the logs apart from the aborting journal message and the soft-lockup)
Tried fsck with badblocks check on the 2 mountpoints for both drives (dunno how to check the swap partition) - nothing I could see there.
I have tried memtest for about 36hours. No errors
I ran smartctl long tests on both drives. No Errors
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Dec 8, 2009
I am currently trying to turn off ordered data mode for ext3 filesystem. I want to shred some files and apparently this won't work with journaling on.
I can't seem to find any good explanations of what exactly "ordered data" means in terms of data recovery/security...or at least none that are written in simple n00b terms. It is all written in terms of disk crashes and whether old data will mix in with the new. It doesn't say whether one's cousin will be able to poke around and find some thought-it-was-deleted porno if he's on the computer.
Can someone step me through the process of turning this off using tune2fs? (if that is the best way to do it!) Do I have to revert to ext2? Can I turn it back on later? Will I lose data (for example, does the drive need to be reformated?) once this change is made? And how does one find, read, and delete/shred the journal itself? Is "ordered data" even a real problem for data recovery?
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Dec 10, 2009
I'm trying to find out which application will copy DVD discs (video and data) in raw mode. Something that works for DVDs like cdrdao works for CDs. I tried using cdrdao but it errors out because the DVD disc is too big for it. I tried looking at Brasero but I can't tell if it offers a raw option. I see that Brasero lets you copy a DVD to a RAW image, then burn the RAW image back to a DVD-R. If Brasero uses RAW mode to do a direct copy, this would essentially do the same thing, but I can't tell if that is what it does. But, I think this will work.
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Mar 12, 2010
Today I wanted to make a backup of my Ubuntu server. Since the program wasn't working for me, I rebooted my computer and right now it wont boot. Now I entered recovery mode and I'm trying to recover my /var/www and /etc/mrtg folders. I want to copy them to my USB-Stick but Ubuntu wont do this.
The command I tried: Code: cp -r /var/www /dev/sdg1/www I already created the folder via a other system. I also tried to mount the USB stick: Code: mount /dev/sdg1 /mnt/usbe But im getting the following error: error while loading shared libraries: /lib/libsepol.so.1: Invalid ELF header.
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Jan 31, 2011
Can any data be lost on ext4 with full journalling mode when electricity crashes? I know it's possible on filesystems like JFS and XFS because they don't journal data (only metadata). When ext4 in "journal" mode journalles both - data and metadata. Does it give 100% guarantee that no data can ever be lost in case of problems with electricity?
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May 6, 2010
I am not able to detect my USB hard drive in Linux rescue mode after passing "fdisk -l" as i want to take the data backup in my USB hard disk.
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Apr 19, 2010
I am getting a pop up window saying: "Not optimum mode. Recommended mode 1280 x 1024 60Hz" In my case, this is happening after installing Debian 504 AMD64, the Samsung "SyncMaster 940N" that gives this message or warning was working fine for a few years on another machine under the previous Lenny distro.
The only way to get rid of this unwanted pop-up window (the monitor is working fine) is to press the "AUTO" switch on the monitor, there is no such option in the menu of the monitor to disable anything or change the resolution and it seems to me that, unlike what was suggested as an answer in similar threads, the problem is not with the monitor but with the distro unable to detect the monitor properly. The only mention in the "xorg.conf" file is as follows and running "dpkg reconfigure ..." has no other effect than creating a new exact duplicate of the file.
Section "Screen"
Identifier"Default Screen"
Monitor"Configured Monitor"
EndSection
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Oct 13, 2010
How can I set a video mode when slackware starts? Instead of having to select one each time or wait 30sec.
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Jul 15, 2011
I run both slackware and the stupid OS "windows " on my laptop, after choosing Slackware -> Loading tux Read BIOS data check succesfull. Undefined video mode number:? Press enter to view a list or space to ...... (actually i don't remember " or wait 30 seconds.
I press enter and select a video mode then continue loading , but i dont want to do that every time so i edited lilo.conf and changed vga = ? to different numbers but it did not work.
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May 17, 2010
My HDA NVidia (VT1708S Digital) doesn't work when I login normal user. It works perfectly when I login root.
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Feb 26, 2010
Well, just as the title of this post says, I am having keyboard and mouse problems. Here's the storyMy friend Cody wanted me to take a look at his computer for him (I'm sort of known as a Linux nerd in my school lol) because his keyboard and mouse do not at all work in init 4 mode. I've tried reconfiguring the keyboard and mouse by trying a different module. I've even tried reconfiguring X alltogether by running "X -configure", which didn't work
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May 27, 2010
If I switch the network card in fullduplex mode (switching command: ethtool - change eth0 autoneg off duplex full), then the network stops working. On Slackware 13.0 this problem did not exist.How do I switch the network card in fullduplex mode?
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Jul 6, 2011
Since 13.37 I notice that vi needs the 'home' key to switch from input to command mode. I think this is only when I connect via Putty to the machine. When I am on local console it is still ESCape like it used to be. Does anyone know how to set it so that vi will switch from input to command mode using the ESCAPE key when using Putty?
Another vi question :
When you edit htm files, vi goes automagically into some sort of html display mode. Ofcourse I never want that since all I do is edit the html in vi. So I need to go to command mode and type :normal everytime I want to edit html files. Where can you configure that vi (or vim) default to normal mode always?
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May 13, 2010
So, in finishing my nFlux slack current edition.I have set it up for users to do certain things in console
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