ext3/ext4 filesystem

[sey]

hi everybody. i have installed ubuntu to my pc. i made 3 partitions. one for system, one for data and one for swap. two of them were ext4. after some time i have reinstalled ubuntu again. but this time i didn't put to format the second partition, but just mount it using ext4. after that i cannot open my files. checked with gparted shows that 2GB used, but with df 188MB. and in properties writes ext3/ext4 filesystem. i used chown, chgrp but didn't help. please help, these data are ver important. i cannot lose them. thanks.

[reed9]

You should be able to mount the partition normally, despite not formatting it. Please post the output of

sudo fdisk -l
df -h

and the contents of the file /etc/fstab.

You may want to try booting up a live CD and see if the partition mounts ok. If so, backup your files to an external drive. (You should always backup important files before messing with installation or partitioning in the future.)

[sgosnell]

If it was originally an ext3 system, and you're mounting it as ext4, you'll have problems. If it was an ext3 system, mount it as ext3 and it should work.

[sey]

partition is mounted.

tural@prog:~$ sudo fdisk -l
Disk /dev/sda: 160.0 GB, 160041885696 bytes
255 heads, 63 sectors/track, 19457 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0xaed45716

   Device Boot      Start         End      Blocks   Id  System
/dev/sda1   *           1        5593    44920832   83  Linux
/dev/sda2            5593       19457   111365473+   f  W95 Ext'd (LBA)
/dev/sda5            5739       19457   110197836   83  Linux
/dev/sda6            5593        5738     1167360   82  Linux swap / Solaris

Partition table entries are not in disk order


tural@prog:~$ sudo df -h
Filesystem            Size  Used Avail Use% Mounted on
/dev/sda1              43G  2.0G   39G   5% /
none                  491M  248K  491M   1% /dev
none                  497M  1.3M  495M   1% /dev/shm
none                  497M   84K  497M   1% /var/run
none                  497M     0  497M   0% /var/lock
none                   43G  2.0G   39G   5% /var/lib/ureadahead/debugfs
/dev/sda5             104G  188M   99G   1% /var/docs

you see df shows 188M but gparted shows 2GB. i have reinstalled ubuntu, now i choosed to mount this partition as ext3. the same 2GB used but no files i can see.

[Jonathan183]

You have a root partition /dev/sda1 43G with 2G used, you also have /dev/sda5 for some reason you have this mounted to /var/docs ... my guess is you have wiped data from this partition - hence only 188M used.

I think your only hope is to shutdown the system, boot from a live CD and you can then try running something like testdisk.

I suggest you boot from a live CD, and run sudo blkid and confirm partition types.

[Irithori]

Jonathan183`s view might be correct.
And after format and an OS installation, your data is at least partly gone.
Even for tools like testdisk

Do you have backups?

[coopstah13]

looks like you picked the wrong partition not to reformat, you needed to pick partition #5, not #2 which is just the logical container for your extended partitions