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------------------ 原始邮件 ------------------

发件人: "Mohammad Abdul-Amir (Shamma)"<mohammadshamma@xxxxxxxxx>;

发送时间: 2009年12月21日(星期一) 晚上6:15

收件人: "Ye Zhou"<zhouyejoe@xxxxxxxxxxx>;

抄送: "xen-devel"<xen-devel@xxxxxxxxxxxxxxxxxxx>;

主题: Re: [Xen-devel] The file system type of DomU is ext2 or ext3?

What are the contents of the DomU's /etc/fstab? One thing to check is the type of the root file system in that file.

2009/12/21 Ye Zhou <zhouyejoe@xxxxxxxxxxx>

Hi, all:

At first I have an idea to improve the performance of the log mechanismin ext3 file system of DomU, but when I do some experiment in DomU, I find a strange thing.

When I input command "df -lhT" to see the file system type, it shows that it is ext3. But when I input command "cat /proc/mounts", it shows that "/dev/root / ext2 rw".This means the type is still ext2. So I can't do my experiments.

# df -lhT
>Filesystem Type Size Used Avail Use% Mounted on
>/dev/sda1 ext3 9.2G 3.7G 5.1G 42% /
>tmpfs tmpfs 129M 0 129M 0% /dev/shm

# cat /proc/mounts
>rootfs / rootfs rw 0 0
>/dev/root / ext2 rw 0 0
>/proc /proc proc rw 0 0
>/sys /sys sysfs rw 0 0
>/proc/bus/usb /proc/bus/usb usbfs rw 0 0
>none /dev tmpfs rw 0 0
>devpts /dev/pts devpts rw 0 0
>tmpfs /dev/shm tmpfs rw 0 0
>none /proc/sys/fs/binfmt_misc binfmt_misc rw 0 0
>sunrpc /var/lib/nfs/rpc_pipefs rpc_pipefs rw 0 0
>/etc/auto.misc /misc autofs rw,fd=6,pgrp=2065,timeout=300,minproto=5,maxproto=5,indirect 0 0
>-hosts /net autofs rw,fd=11,pgrp=2065,timeout=300,minproto=5,maxproto=5,indirect 0 0

Imade the DomU OS image by simply copying the main files from Dom0,and in Dom0 it shows it is ext3.

Whether I made the wrong way in making the image? Or thereare someother problems? I don't kown why!

Thanks all!

------------------

Best Regarding！

Ye Zhou

--------------------------------------------------------

Cluster and Grid Computing Lab

Services Computing Technology and System Lab

Department of Computer Science

Huazhong University of Science and Technology Wuhan, 430074, China

Mobile:+86-13437170320

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--
Mohammad Abdul-Amir (Shamma)

回复： [Xen-devel] The file system type of DomU is ext2 or ext3?