Fedora Installation :: 11 - Can't Be Mounted When Booting After Converting From Ext3 To Ext4

Jun 16, 2009

I upgraded F10 to F11 successfully.

Then I convert the / partition filesystem by the following steps:login as root user in multi user mode read [url], and execute tune2fs -O extents,uninit_bg,dir_index /dev/mapper/VolGroup01-LogVol00 modify /etc/fstab, change the type of / to ext4

reboot
(because fsck say running it on a mounted filesystem can cause filesystem damage, so i decide to reboot to single user mode first. maybe it's a mistake here) try to boot F11 to single user mode, failed

reboot from a SystemRescueCD-1.2.0 LiveCD
run e2fsck -fpDC0 /dev/mapper/VolGroup01-LogVol00 in SystemRescueCD-1.2.0 LiveCD, no error reported

reboot
try to boot F11 normally(multi user mode), but it failed at: EXT3-fs: dm-0: couldn't mount because of unsupported optional features (40).

I tried rescue mode of Fedora-11-i386-netinst.iso after these steps above. The / partition can be found and mounted to /mnt/sysimage correctly. I can read/write files in / partition, and i can even yum new softwares in rescue mode, but it just can't be mounted when booting.

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Ubuntu :: Converting Ext3 To Ext4 On An Installed System ?

Nov 18, 2010

I've recently installed Ubuntu 10.10 on a machine, unfortunately, the hard drive was ext3 partitioned. Is there a way of converting this partition to ext4 without having to re-format and hence reinstall the entire OS ?

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Jun 14, 2009

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Jun 11, 2009

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May 19, 2010

I had 5.4 machine. Upgraded to 5.5 today via yum upgrade. All went fine. Rebooted. Wanted to convert root partition to ext4 (I have three partitions: /boot, / and swap). All of them on software RAID 1 (root is /dev/md2). I did the following for converting

yum install e4fsprogs
tune2fs -O extents,uninit_bg,dir_index /dev/md2
nano /etc/fstab # I indicated here that my /dev/md2 is of ext4

[code]....

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Ubuntu Installation :: Converting Swap Space To Ext2 Or Ext3?

Sep 1, 2011

I want to convert my swap space 8GB to usable formatHere is the output of sudo fdisk -l command$sudo fdisk -lDisk /dev/sda: 80.0 GB, 80026361856 bytes255 heads, 63 sectors/track, 9729 cylindersUnits = cylinders of 16065 * 512 = 8225280 bytesDisk identifier: 0x26af26ae

Device Boot Start End Blocks Id System
/dev/sda1 * 1 2295 18434556 7 HPFS/NTFS
/dev/sda2 2296 9728 59705572+ f W95 Ext'd (LBA)

[code]...

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Sep 7, 2010

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My questions: Will the upgrade convert my current ext3 partition into an ext4 one? How can I keep the ext3 partition? The release notes for 10.04 say:

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Jan 16, 2010

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May 25, 2010

I'm currently using Ubuntu, but just ordered a new SSD (64GB) & plan to install Fedora on it- but just have a few questions...

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Debian Installation :: Stuck In Initramfs After Ext3>ext4?

Aug 14, 2010

I have Debian Squeeze with linux-2.6.32-5-amd64Ok, so what I did is first changed fstab ext3 to ext4, rebooted, everything looked good. Then I enabled extents and other ext4 features on my root and home partitions using commands

tune2fs -O extents,uninit_bg,dir_index /dev/sda3
tune2fs -O extents,uninit_bg,dir_index /dev/sda4
then I ran e2fsck -fDC0 /dev/sda3

[code]....

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Ubuntu Installation :: Ext3-ext4 Upgrade Massive Failure?

Mar 21, 2010

The laptop I regularly use is out of use after having tried to upgrade from ext3 to ext4, following the instructions that can be found at namely, Step 2: Upgrading to Ext4Well, the first step was done without problems, but when I reached "Mount your filesystem", the problems started:When typingsudo mount -t ext4 /dev/XXXX /mntwhat appears is:UNEXPECTED INCONSISTENCY; RUN fsck MANUALLYStupid me, I did nothin but jump to the next step:gksu gedit /mnt/etc/fstabWhere I only got a fully white screen with no written text at all, instead of the menu that should have appeared, as can be seen on that webpage.

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mountall start/startingfsck from until-linux-ng 2.16
/dev/sda1: One or more block group descriptor checksums are invalid. FIXED
/dev/sda1: Group descriptor 0 checksum is invalid

[code]....

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Ubuntu Installation :: Cannot Boot System After Migration From Ext4 Down To Ext3

Mar 22, 2010

I have been able to get most of the way through the process of changing from using ext4 back to using ext3, but something is not quite right so my system does not boot properly.

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Now, the machine begins to boot from newvg, but the console text includes messages like:

And a bit later,

Now, at this shell if I type mount, I see:

I am actually confused as to why there are only entries for /root and /var in /etc/mtab, actually, instead of entries for all of the main mount points. I am thinking it must be part of the boot staging process, because there are entries for newvg-usr, newvg-tmp, etc. in /etc/fstab.

When I type any of pvdisplay, vgdisplay, or lvdisplay, I get

In fact, even if I run lvm, I get a similar error:

However, if I go back to the rescue cd, pvdisplay, vgdisplay, and lvdisplay do show that all of the partitions from both the old and new volume groups are available.

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Code:
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[code]....

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Nov 15, 2010

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I had Lenny with ext3 installed on my notebook. I've done the Upgrade from Lenny to Squeeze. Howto and should I convert ext3 to ext4?

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Mar 9, 2010

how to convert ext3 to ext4? I'd like to convert partitions which I use for virtual machines (vmware-server and virtualbox). I use Ubuntu 9.10 as vmware-server host and Gentoo as virtualbox host.

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[Code]...

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Oct 5, 2010

I'm using CentOs 5.4 (2.6.18-164.15.1.el5 #1 SMP Wed Mar 17 11:30:06 EDT 2010 x86_64). I tested out ext4 on a partition for the last few months and it seems to work fine. The issue is that quotas dont seem to work correctly on it. Is there a way to revert back to ext3? Mainly the quota tools do not work on it.

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May 21, 2010

I've Squeeze installed on ext3 (Upgrade from Lenny). Howto convert ext3 to ext4?

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I run an upgrade and an update on a lucid lynx beta 2. --- got no problems. but about the filesystems i have some questions because it seems for me that at every system boot the system will run an fsck. somtimes it's shown up, somtimes not. but in /var/log/messages and in syslog

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Aug 31, 2010

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What would be the cons of having ext4 as default in Squeeze?

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Jul 24, 2011

I need to convert my server(10.04) to ext4 from ext3 and want to make sure I am going to do this the correct way.

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Code:
sed -i s/ext3/ext4/ /etc/fstab
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Code:
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[Code].....

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