Ext4 how to mount?

[Elfy]

I'm not sure - boot the livecd and see if it recognises the drives first, but I have to ask why you're looking at a development version for a server.

I would personally be looking at Hardy for a server.

Once you've booted the livecd see if you can access the drives, if it does check what fstab is saying in there.

In the meantime can you post your current fstab please

cat /etc/fstab

[rybaxs]

I'm not sure - boot the livecd and see if it recognises the drives first, but I have to ask why you're looking at a development version for a server.

I would personally be looking at Hardy for a server.

Once you've booted the livecd see if you can access the drives, if it does check what fstab is saying in there.

In the meantime can you post your current fstab please

cat /etc/fstab

ubuntu@ubuntu:~$ cat /etc/fstab
unionfs / unionfs rw 0 0
tmpfs /tmp tmpfs nosuid,nodev 0 0
/dev/sda5 swap swap defaults 0 0

This is the result,

When I open the disk this is the error message

Cannot mount volume
The volume uses the ext4file system which is not supported by your system.

Unable to mount location
DBus error org.freedesktop.DBus.Error.NoReplyid
not receive a reply. Possible causes include: the
remote application did not send a reply, the message
bus security policy the reply, the reply timeout
expired, or the network connection was broken.

Disk Properties
Type: unknown type
Size: unknown
Volume: uknown
MIME Type: application/octet-stream
Modified: unknown
Accessed: unknown

[Elfy]

That's the livecd fstab, I meant the system fstab.

I have really no idea whether it is as simple as changing the filetype in fstab.

You're post #10 doesn't really answer

Find out from this other admin what was done and then we can move on hopefully.

Perhaps you can dig a bit deeper into the bash history or get the other admin to post something.

In the meantime I've flagged the thread on the UA team's site maybe someone there knows something.

I assume that if the situation is irretrievable that you have good backups it being a server.

[Locke_99GS]

GRUB doesn't support, and won't boot to ext4 partitions. (yet) If the whatever partition /boot resides on was changed to ext4, it won't boot with GRUB. Create a seperate ext3 partition to mount at /boot, then install (or copy?) /boot.

Downlaod the current LiveCD with a bootable PC or OS, burn it, and boot it. (any LiveCD will work, *buntu, Fedora, whatever) The ext4 drive can be mounted as ext3, and you will be able to access it that way.

Alternatively, once in a livecd environment, you may (?) be able to use tune2fs to change the filesystem back to ext3.

[rybaxs]

hello forestpixie

this is what actually happened ..
from the last part of the system log..
someone made the mistake at the terminal using root

$mv

all system files was move to one sub folder, then at the boot
GRUB error15.. so i move the system files back to /
after moving the files and folders, it boots up the OS,
but you cannot login because the system is read only.
so i chown to root:root
after this the other sys ad try to get in in the gnome..
our server OS is Ubuntu Feisty - after the other SysAd get in
he tries to update the gnome, after the downloading of package,
the system hangs up and restarted.. and in the GRUB error2 occur,
so i mount the disk to other Ubuntu 8.04 the disk cannot be read because
it shows that it is ext4..

sorry for the reply forestpixie, thank you so much for the time.. i realy really appreciate it.

I try the jaunty but it seems it is not working.. i try looking for the specs..

[Elfy]

Try this boot the 8.04 livecd

Open terminal and

sudo mkdir /mnt/test

After running sudo fdisk -l - use the information you get to replace /dev/sxy for one of your drives and see if we can mount it as ext3

sudo mount -t ext3 /dev/sxy /mnt/test