自由題庫 - 我也來幫忙...

[Tetralet]

Tom had installed his Linux with ext2 filesystem.
He want to convert the ext2 partition to ext3.
How should he do?

1. Use the fsck command
2. Use the mkfs command
3. Use the tune2fs command
4. Edit /etc/fstab and reboot
5. Re-install Linux


Tom converted the ext2 partition to ext3 finally.
But he find that his boot loader can not work without an ext2 parttion.
So he want to convert the ext3 partition to ext2.
How should he do?

1. Use the fsck command
2. Use the mkfs command
3. Use the tune2fs command
4. Edit /etc/fstab and reboot
5. Re-install Linux


今天 Fox 兄偷懶沒有出題哦！
所以我來亂入一下...

題目是自己想的，所以沒有標準答案，
請大家不妨討論一下可能的做法...

_________________
改一下排版。
多按了個 <Enter>。奇怪...

[訪客]

第一題, 先做3, 再做4
第二題, 先做3, 再做1, 最後做4

有錯請指教

[訪客]

第一題, 先做3, 再做4
第二題, 先做3, 再做1, 最後做4

有錯請指教

第二題
我記得直接改 fstab, reboot 就好了(4)

[小狐狸]

Tom had installed his Linux with ext2 filesystem.
He want to convert the ext2 partition to ext3.
How should he do?

1. Use the fsck command
2. Use the mkfs command
3. Use the tune2fs command
4. Edit /etc/fstab and reboot
5. Re-install Linux

ans:3,4

Tom converted the ext2 partition to ext3 finally.
But he find that his boot loader can not work without an ext2 parttion.
So he want to convert the ext3 partition to ext2.
How should he do?

1. Use the fsck command
2. Use the mkfs command
3. Use the tune2fs command
4. Edit /etc/fstab and reboot
5. Re-install Linux

ans:4(直接mount成ext2,but ...怎麼轉回來勒？)

[Tetralet]

參考資料：

　http://batleth.sapienti-sat.org/projects/FAQs/ext3-faq.html

代碼: 選擇全部

Q: How do I convert my ext2 partition to ext3? (was: How do I use ext3?)
Before you can mount a partition as ext3 you have to create a journal on it. The easiest way to do it is to type:

    tune2fs -j /dev/hdaX

This can be done on an unmounted or on a mounted filesystem. If you create the journal on a mounted filesystem you will see a .journal file. Don't try to delete this and don't back this up or restore it from backup! If you run tune2fs -j on an unmounted partition an unvisible journal file will be created.
Now you can mount the filesystem as ext3 using:

    mount -t ext3 /dev/hdaX /mnt/somewhere

With mke2fs -j /dev/hdaX you can format a partition as ext3 (as always it will be also usable as ext2 partion).


所以答案是：

　3. Use the tune2fs command
　4. Edit /etc/fstab and reboot

代碼: 選擇全部

Q: How do I convert my ext3 partition back to ext2?
Actually there is only little need to do so, because in most cases it is sufficient to mount the partition explicitely as ext2. But if you really need to convert your partion back to ext2 just do the following on an unmounted partition:

    tune2fs -O ^has_journal /dev/hdaX

To be on the safe side you should force a fsck run on this partition afterwards:

    fsck.ext2 -f /dev/hdaX

After this procedure you can safely delete the .journal file if there was any.

所以答案是：

　3. Use the tune2fs command
　4. Edit /etc/fstab and reboot
　1. Use the fsck command


但如果所要處理的是 / 分割區，
狀況可能會再複雜一點。
用 Konppix 來處理可能會比較單純。

[小狐狸]

出題出的真不錯～

薑還是老的辣～～

[訪客]

當然可以將EXT3 mount成EXT2, 但會出現
"EXT2-fs warning (device ide1 xxx)): ext2_read_super: mounting ext3 filesystem
的warning.

題目是要求轉成EXT2
因此要下
tune2fs -O ^has_journal /dev/hdX#

[Tetralet]

忘了說，其實這一題並沒有標準作法。

ext2 分割區可以用 tune2fs 直接轉換成 ext3 分割區，
甚至是 mounted 的分割區也沒關係。

而 ext3 分割區也可以直接以 ext2 掛載，
所以樓上那幾位訪客兄所說的作法其實也都沒錯...

不過在實戰上，
建議能按照官方的做法來進行是比較恰當的。