[SOLVED - FreeBSD] cannot mount ext4 partition

[SOLVED - FreeBSD] cannot mount ext4 partition - BSD

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	berk Offline \| 03-07-2013, 08:40 AM \| #1

I have a 238.4 GB SAMSUNG HD251HJ ATA-7 SATA2 hard disk which I used as a home partition for my Linux installation. Yesterday I migrated to FreeBSD and I have not been able to recover my data since. I have tried to mount the filesystem, but I keep getting an error. Here's a transcript of my terminal session:

Code:
$ gpart show

=>       34  156301421  ada0  GPT  (74G)

         34        128     1  freebsd-boot  (64k)

        162  155189120     2  freebsd-ufs  (74G)

  155189282    1112173        - free -  (543M)

=>       63  488397105  ada1  MBR  (232G)

         63  488397105     1  linux-data  (232G)

$ du /dev/ada*

0    /dev/ada0

0    /dev/ada0p1

0    /dev/ada0p2

0    /dev/ada1

0    /dev/ada1s1

$ sudo mount /dev/ada1 /mnt/

mount: /dev/ada1: Invalid argument

$ sudo mount /dev/ada1s1 /mnt/

mount: /dev/ada1s1: Invalid argument

Please help me mount /dev/ada1s1, thanks in advance :)

	yrmt Offline \| 03-07-2013, 09:02 AM \| #2

There is limited read only support for ext4 filesystems.
You can mount them by:
``# mount -t ext2fs -o ro /dev/name /mountpoint``

	venam Offline \| 03-07-2013, 09:03 AM \| #3

Since when BSD is able to mount ext4?

	yrmt Offline \| 03-07-2013, 09:07 AM \| #4

You can but in read only mode.

	berk Offline \| 03-07-2013, 09:10 AM \| #5

Code:
> sudo mount -t ext2fs -o ro /dev/ada1s1 /mnt

mount: /dev/ada1s1: Invalid argument

> sudo mount -t ext2fs -o ro /dev/ada1 /mnt

mount: /dev/ada1: Invalid argument

Thanks for your answers, but it didn't work. :(

	venam Offline \| 03-07-2013, 09:15 AM \| #6

I thought it worked with ext2 in r/w and ext3 in r only.
theconjuring, you can still mount it with a rescue disk.

	berk Offline \| 03-07-2013, 09:19 AM \| #7

(03-07-2013, 09:15 AM)venam Wrote: theconjuring, you can still mount it with a rescue disk.

Yes I know I can mount them with a rescue disk, maybe I will need to back them up in a hard disk and reformat it to UFS so FreeBSD plays nicely.

Thanks for the help. :)

	yrmt Offline \| 03-07-2013, 09:22 AM \| #8

Oops, I confused ext4 for ext3, sorry.

	berk Offline \| 03-07-2013, 11:37 AM \| #9

"rescue disk", I don't have one. I downloaded ttylinux (65 MB) and tried to dd it to an USB, but it doesn't just work. :/

Code:
$ sudo dd if=ttylinux-pc_i686-16.1.iso of=/dev/da0

134764+0 records in

134764+0 records out

68999168 bytes transferred in 466.936130 secs (147770 bytes/sec)

Doesn't boot. :/

	venam Offline \| 03-07-2013, 02:01 PM \| #10

Slitaz is also a solution and it comes with a GUI already installed (openbox).

	berk Offline \| 03-07-2013, 02:28 PM \| #11

Installed ext4fuse and ntfs-3g and I can read ext4 partitions. I can write on NTFS partitions, too.

Thank you, guys, problem solved.

	yrmt Offline \| 03-07-2013, 02:35 PM \| #12

Great, instead of putting <solved>, could you use [solved] for the future posts? Thanks

	berk Offline \| 03-07-2013, 02:59 PM \| #13

(03-07-2013, 02:35 PM)Beastie Wrote: Great, instead of putting <solved>, could you use [solved] for the future posts? Thanks

Roger that, wilco.

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