How To Convert An ext3/ext4 Root File System To btrfs On Ubuntu 12.10
ext3 and ext4 file systems can be converted to btrfs. For non-root
file systems, this can be done online (i.e., without reboot), while for
root file systems we need to boot into some kind of rescue system or
Live CD.
Hi,
I am running F17 with / and /boot mounted as ext3. I want to convert / to ext4 to gain some performance, but I still have GRUB in my MBR installed from the F15 times (and GRUB2 package installed but unused). I had bad experience with GRUB2 and don't want to switch to GRUB2 yet.
Will GRUB be able to boot my system after the conversion?
I am trying to convert a root ext3 filesystem to ext4. So i ran
tune2fs -O extents,uninit_bg,dir_index /dev/sda1
Then I changed the filesystem type from ext3 to ext4 in /etc/fstab and then added rootfstype to the grub config files. I've rebooted assuming that the kernel would just fsck on its own but it hasn't come up (headless remote machine).
I used a Software-RAID I and want to access the data without RAID now.
I have seen that Ubuntu 11.10 is offering Ext4 as default file system. As I have googled some time on ext4 and found that ext3 is quite stable that ext4 as it still has some bugs.
Even the Ubuntu Documentation is referring Ext3. Link
So, I would like to know whether Ext4 is currently stable on 11.10 or not than Ext3
I'm not sure what is wrong here but when running fdisk -l I don't get an output, and when running
fdisk /dev/sdb # I get this
fdisk: unable to open /dev/sdb: No such file or directory
I'm running Ubuntu 12.10 Server
Can someone please tell me what I'm doing wrong?
Basic comparison between ext4 vs ext3 vs NTFS, it will show the benefits of using ext4 file system, all of them supporting journaling file system will talk more about journaling.
Is it possible to disable file permissions on an ext3/4 file-system?
Just wondering if it's possible to completely disable or ignore file permissions on a ext3 or ext4 file system. Perhaps a mounting option?
I'm not concerned about the security implications as I would be doing this for testing and with removable media.
I am looking for a partition imaging program, like Norton Ghost or Acronis True Image, that will run on the PC (not from live-cd or USB) and can save the image onto a separate partition.
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