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Ubuntu Cannot Change Data Mode On Remount

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If you need to reset your password, click here. I ended up reinstalling 9.04. xyepblraOctober 21st, 2009, 04:35 PMFinally I found the thread my help request it would be proper to post to. After that, reboot and the grub kernel revert back to RO. http://rinfix.com/ubuntu-cannot/ubuntu-cannot-switch-tty.html

I understand that this means that the "data=" option does not match between the mounting and remounting. Today's fresh install: [ 12.764268] EXT4-fs (nand2): mounted filesystem without journal. sda4 = Vbox -> mounts fine with data=writeback Maybe that's where the conflict is?!? At that time this bug will be closed as EOL if it remains open with a Fedora 'version' of '21'.

Data=writeback Bad Option

Thanks, Colleen He means this way to change the kernel parameters when booting (https://help.ubuntu.com/community/Grub2#Editing Menus During Boot). Ask Ubuntu works best with JavaScript enabled Skip to content Skip to breadcrumbs Skip to header menu Skip to action menu Skip to quick search Spaces Quick Search Help Online Help Opts: (null)
And here's my fstab:Code: Select all***@*** ~ $ cat /etc/fstab
proc /proc proc defaults 0 Is there a way to verify that the system is mounted and is, in fact, running without journaling?

  1. It always worked for me.
  2. Next to "Filesystem Features" - if 'has_journal' does not appear, then journalling has been turned off Please let me know if anything here is incorrect or missing and I will update
  3. Posts: 2Joined: Fri Feb 08, 2013 6:20 am
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  • Of course the file system is not yet, mounted but I was told > fstab should be part of initramfs and it should be the same as the system > /etc/fstab.
  • In addition, this part of 'dmesg' made me believe that "data=writeback" is, in fact the right option (suggesting that data=writeback results in sda3/sda4 being mounted "...without journal"): Code: ] EXT4-fs (sda2):
  • Code: # tune2fs /dev/sda2 -o journal_data_writeback .
  • If it's not installed you can install it with.
  • If you experience problems, please add a comment to this bug.
  • share|improve this answer answered May 10 at 5:12 Julie Pelletier 2,0001614 Some Linux distributions have started booting with rw by default, and no longer put / in fstab at The thing > is that the file system is initially mounted 'ro' by dracut, however it > seems that for some reason it was not mounted with the options specified > Often a more recent Fedora release includes newer upstream software that fixes bugs or makes them obsolete. Journal_data_writeback When I created the file system I didn't use the option to journal_data, which is not "ordered" mode, per ext4 default.

    Opts: (null) [ 17.557900] EXT4-fs (nand2): Cannot change data mode on remount [ 17.604119] EXT4-fs (nand2): Cannot change data mode on remount As the official cubieboard 2 download Ext4 Data=writeback And the root file system is remounted during boot. (correct Linux Pros out there? afroman10496August 18th, 2009, 05:56 AMsudo chmod +x / will make it executable... In the context of this quote, how many 'chips/sockets' do personal computers contain?

    Cannot change data mode on remount Workaround: remove data=writeback from /etc/fstab Problematic entry: LABEL="Fedora20" / ext4 discard,data=writeback,noatime,nodiratime,defaults 1 1 Working entry: LABEL="Fedora20" / ext4 discard,noatime,nodiratime,defaults 1 1 Any hint available what Ext4 Barrier=0 BTW, I am using Ubuntu 10.04 server, in case you wondered. :) ‹ Tuning FreeBSD loader.conf for ZFS to prevent kmem_map too small kernel panic How to remove or detach dvd Not the answer you're looking for? Steps taken: 1. (live CD) Use cfdisk to cut up the drive 2.

    Ext4 Data=writeback

    How to I remount this drive as read-write? https://bbs.archlinux.org/viewtopic.php?id=173293 I believe I've done all the steps correctly, yet still unable to mount root. Data=writeback Bad Option I'm trying to do a kickstart install for a SSD based machine, hence the need for data=writeback. Ext4 Commit However -o remount,rw,data=ordered gives the same error.

    Frankly, a no-journal filesystem scares the crap out of me. http://rinfix.com/ubuntu-cannot/ubuntu-cannot-resolve.html Join them; it only takes a minute: Sign up Here's how it works: Anybody can ask a question Anybody can answer The best answers are voted up and rise to the Search this Thread 11-28-2011, 01:04 PM #1 holister LQ Newbie Registered: Oct 2010 Posts: 22 Rep: "data=writeback" in fstab mounts root partition as "read-only" Goal: Use ext4 (faster than Another important thing I've noticed: if running on SD card, the partition is really running on writeback mode! Ext4 Data=journal

    ro root-mount-opts=writeback ... Several functions may not work. I find and start Grub okay, but when I select Arch and it initializes, I get the following:[1.8891941] i8042: No controller found/dev/sda7[my root partition]: recovering journal/dev/sda7: clean, 33347/130720 files, 328646/5242880 blocks[ navigate here So with a Macbook, that shouldn't matter since I believe that they are USB driven (don't quote me on that, it has been a while since I have used my old

    How to handle swear words in quote / transcription? Ext4 Disable Journaling It will update your grub and will exit from Grub menu. My cat sat on my laptop, now the right side of my keyboard types the wrong characters How do unlimited vacation days work?

    Not sure if the problem is already fixed, but I'm sure it's something we cannot fix by mount(8) ;-) Comment 7 Gabriel Somlo 2014-12-22 09:42:42 EST Created attachment 972056 [details] kickstart

    We've got a file system which is already mounted and the user space requested remount with the options that's it's not supported for remount. do: mke2fs -t ext4 -O ^has_journal /dev/sdaX (root) 3. I've attached the simplest kickstart file I could come up with to reproduce the problem I'm seeing, alogn with "journalctl --system" and "dmesg" output. Ext4 Performance Tuning Bug1050169 - systemd-remount-fs fails if data=writeback is specified in /etc/fstab Summary: systemd-remount-fs fails if data=writeback is specified in /etc/fstab Status: CLOSED EOL Aliases: None Product: Fedora Classification: Fedora Component: kernel (Show

    Just give it a try.. Take it off = mounts fine. Username Password I've forgotten my password Remember me This is not recommended for shared computers Sign in anonymously Don't add me to the active users list Privacy Policy his comment is here However, I'm wondering what could be keeping the FS from mounting as read-write, and just hoping for some general understanding of how init juggles the root filesystem around at boot.Here are

    Opts errors=remount-ro How can I boot into recovery mode and with read-write option? How do I deal with my current employer not respecting my decision to leave? you use ext4, right afroman10496August 18th, 2009, 05:08 AMHow can you boot to recovery mode? Opts: errors=remount-ro,data=journal
    [ 412.235632] EXT4-fs (mmcblk0p2): Cannot change data mode on remount
    [ 459.916646] EXT4-fs (mmcblk0p2): re-mounted.

    mount filesystem share|improve this question edited Aug 28 '13 at 19:01 Braiam 39.4k1693154 asked Apr 1 '12 at 16:45 bale 321133 add a comment| 3 Answers 3 active oldest votes up in /etc/default/grub: GRUB_CMDLINE_LINUX="rootflags=data=writeback" -> update-grub2 6. do: tune2fs -O ^has_journal /dev/sdX 4. On reboot you find out the system won't come up.

    I think that the i8042 has to do with non-usb input devices (this is what my Thinkpad uses for the internal keyboard, trackpoint, and so forth). I'm running an armbian version from June, maybe this can explain it. If it is Linux Related and doesn't seem to fit in any other forum then this is the place.