HOWTO : Convert existing ext3 to ext4

According to the current issue (issue #22, Page 26 “Letters”) Full Circle Magazine , we can convert existing ext3 to ext4 by the following command.  However, I did not try it yet until the release of Ubuntu 9.04.
  1. tune2fs -O extents,uninit_bg,dir_index /dev/DEV
複製代碼
ext4 is running fast and stable under Ubuntu 9.04 Alpha.  I have installed it on a AData 300 Series 64GB Solid State (SSD, MLC) Drive with no problem.  However, the BIOS should not select Advanced Host Controller Interface (AHCI).  According to some source, ext4 is also good for SSD usage.

***
The original source.

提示: 作者被禁止或刪除 內容自動屏蔽

TOP

I am using ext4 on my home (gentoo), office (RHEL5) and loongson box (gentoo) already.

TOP

ext4 會唔會好似 ext3 咁
有一部份data 係睇唔到?
e.g. clean format to ext3, some space are occupied, even no data show in file browser

TOP

你指剛 format 好時會顯示有幾十M 用左?
唔係 hidden data, 只係 D 日誌之類。

原帖由 botherguy 於 2009-3-7 20:35 發表
ext4 會唔會好似 ext3 咁
有一部份data 係睇唔到?
e.g. clean format to ext3, some space are occupied, even no data show in file browser

TOP

原帖由 lazyfai 於 2009-3-8 12:41 發表
你指剛 format 好時會顯示有幾十M 用左?
唔係 hidden data, 只係 D 日誌之類。



咁ext4 會唔會咁?
我依家個ext3 有30幾 GB 俾 journalling 用左...

[ 本帖最後由 botherguy 於 2009-3-8 15:52 編輯 ]

TOP

TOP

ext3同4有咩分別?.?

TOP

原帖由 lazyfai 於 2009-3-7 17:01 發表
I am using ext4 on my home (gentoo), office (RHEL5) and loongson box (gentoo) already.


Did you 'convert' or 'format' it?

TOP

For office machine, too many data, I just convert them.
For home machine, I backup, format and restore.

TOP

相關文章