ext2fs inode size 256

ankscorek

ankscorek

Hello friends, I am aware this is an old problem with a patch available. I am using this link
http://linux-bsd-sharing.blogspot.in/2009/09/howto-mount-ext2fs-partitions-with.html. I am not getting the desired results hence here is the snippet.
Code: 
/usr/src/sys/gnu/fs # patch < ~/ext2fs.diff 
Hmm...  Looks like a unified diff to me...
The text leading up to this was:
--------------------------
|diff -ud ext2fs.orig/ext2_fs.h ext2fs/ext2_fs.h
|--- ext2fs.orig/ext2_fs.h	2005-06-16 06:51:38.000000000 +0000
|+++ ext2fs/ext2_fs.h	2008-09-03 14:10:27.000000000 +0000
--------------------------
File to patch:

Can someone please tell what file is it asking in the end? (The last line please)
 
ankscorek said:
Hello friends I am aware this is an old problem with a patch available.

I am using this link
http://linux-bsd-sharing.blogspot.in/2009/09/howto-mount-ext2fs-partitions-with.html

I am not getting the desired results hence here is the snippet [...]
Click to expand...
What version of FreeBSD are you running? According to the PR kern/124621, this was fixed in 7-STABLE and 8-STABLE (and implicitly in 9-STABLE, which was HEAD at the time) back in October 2009.

Can someone please tell what file is it asking in the end? (The last line please.)
Click to expand...
/usr/src/sys/gnu/fs/ext2fs/ext2_fs.h

However, I'm concerned that you may not have the background to understand what will happen next. In particular, you may be asked if you want to revert a previous-applied patch, or that the patch failed or succeeded with fuzz or offsets. Any of those indicates that something is wrong. And the patch is going to ask you the same question for a few additional files.
 
What version of FreeBSD are you running?
Click to expand...

Code: 
uname -a
FreeBSD noname.noname.edu 9.1-RELEASE FreeBSD 9.1-RELEASE #0 r243826: Tue Dec  4 06:55:39 UTC 2012     root@obrian.cse.buffalo.edu:/usr/obj/usr/src/sys/GENERIC  i386

However, I'm concerned that you may not have the background to understand what will happen next.
Click to expand...
Here you have hit the Bull's eye. I agree with you on this aspect and is eager to read links pertaining to this.

Code: 
$ cd /usr/src/sys/gnu/fs
$ ls
reiserfs	xfs
 
Code: 
[CMD="%"]ll /usr/src/sys/fs[/CMD]
total 33
drwxr-xr-x  2 root  wheel  17 Jan  9 04:52 cd9660/
drwxr-xr-x  2 root  wheel  20 Jan  9 04:52 coda/
drwxr-xr-x  2 root  wheel   3 Jan  9 04:52 deadfs/
drwxr-xr-x  2 root  wheel   9 Jan  9 04:52 devfs/
[B]drwxr-xr-x  2 root  wheel  18 Jan  9 04:52 ext2fs/[/B]
drwxr-xr-x  2 root  wheel   5 Jan  9 04:52 fdescfs/
drwxr-xr-x  2 root  wheel   4 Jan  9 04:52 fifofs/
drwxr-xr-x  2 root  wheel  11 Jan  9 04:52 hpfs/
drwxr-xr-x  2 root  wheel  16 Jan  9 04:52 msdosfs/

The files are already patched.
 
Code: 
root@noname:/usr/src/sys/fs # ll
total 88
drwxr-xr-x  2 root  wheel  512 Mar 10 11:08 cd9660/
drwxr-xr-x  2 root  wheel  512 Mar 10 11:08 coda/
drwxr-xr-x  2 root  wheel  512 Mar 10 11:08 deadfs/
drwxr-xr-x  2 root  wheel  512 Mar 10 11:08 devfs/
drwxr-xr-x  2 root  wheel  512 Mar 10 11:08 ext2fs/
drwxr-xr-x  2 root  wheel  512 Mar 10 11:08 fdescfs/
drwxr-xr-x  2 root  wheel  512 Mar 10 11:08 fifofs/
drwxr-xr-x  2 root  wheel  512 Mar 10 11:08 hpfs/
drwxr-xr-x  2 root  wheel  512 Mar 10 11:08 msdosfs/
drwxr-xr-x  2 root  wheel  512 Mar 10 11:08 nfs/
drwxr-xr-x  2 root  wheel  512 Mar 10 11:08 nfsclient/
drwxr-xr-x  2 root  wheel  512 Mar 10 11:08 nfsserver/
drwxr-xr-x  2 root  wheel  512 Mar 10 11:08 ntfs/
drwxr-xr-x  2 root  wheel  512 Mar 10 11:08 nullfs/
drwxr-xr-x  2 root  wheel  512 Mar 10 11:08 nwfs/
drwxr-xr-x  2 root  wheel  512 Mar 10 11:08 portalfs/
drwxr-xr-x  2 root  wheel  512 Mar 10 11:08 procfs/
drwxr-xr-x  2 root  wheel  512 Mar 10 11:08 pseudofs/
drwxr-xr-x  2 root  wheel  512 Mar 10 11:08 smbfs/
drwxr-xr-x  2 root  wheel  512 Mar 10 11:08 tmpfs/
drwxr-xr-x  2 root  wheel  512 Mar 10 11:08 udf/
drwxr-xr-x  2 root  wheel  512 Mar 10 11:08 unionfs/

This was followed by

Code: 
root@noname:/usr/src/sys/fs # patch < ~/ext2fs.diff 
Hmm...  Looks like a unified diff to me...
The text leading up to this was:
--------------------------
|diff -ud ext2fs.orig/ext2_fs.h ext2fs/ext2_fs.h
|--- ext2fs.orig/ext2_fs.h	2005-06-16 06:51:38.000000000 +0000
|+++ ext2fs/ext2_fs.h	2008-09-03 14:10:27.000000000 +0000
--------------------------
File to patch: ext2fs/ext2_fs.h
No file found--skip this patch? [n] n
File to patch: ext2fs/ext2fs.h
Patching file ext2fs/ext2fs.h using Plan A...
Hunk #1 failed at 150.
1 out of 1 hunks failed--saving rejects to ext2fs/ext2fs.h.rej
Hmm...  The next patch looks like a unified diff to me...
The text leading up to this was:
--------------------------
|diff -ud ext2fs.orig/ext2_inode.c ext2fs/ext2_inode.c
|--- ext2fs.orig/ext2_inode.c	2006-09-26 04:15:58.000000000 +0000
|+++ ext2fs/ext2_inode.c	2008-09-03 13:54:49.000000000 +0000
--------------------------
Patching file ext2fs/ext2_inode.c using Plan A...
Hunk #1 failed at 91.
1 out of 1 hunks failed--saving rejects to ext2fs/ext2_inode.c.rej
Hmm...  The next patch looks like a unified diff to me...
The text leading up to this was:
--------------------------
|diff -ud ext2fs.orig/ext2_vfsops.c ext2fs/ext2_vfsops.c
|--- ext2fs.orig/ext2_vfsops.c	2008-04-03 18:51:13.000000000 +0000
|+++ ext2fs/ext2_vfsops.c	2008-09-03 13:55:37.000000000 +0000
--------------------------
Patching file ext2fs/ext2_vfsops.c using Plan A...
Hunk #1 failed at 424.
Hunk #2 failed at 578.
Hunk #3 failed at 1013.
3 out of 3 hunks failed--saving rejects to ext2fs/ext2_vfsops.c.rej
done

Still no patch done. Any suggestions please
 
ankscorek said:
Still no patch done. Any suggestions please
Click to expand...
As people here have been saying, you're trying to apply a patch for a problem that was fixed years ago.

Have you tried just enabling ext2fs support and mounting the ext2fs partition as described in ext2fs(5)?

In particular, this step:
# kldload ext2fs
followed by the appropriate mount(8) command line:
# mount -t ext2fs /dev/ad1s1 /mnt
Note that your device name and choice of mount point may differ from this line.
 
This has already been carried out:

Code: 
cat /boot/loader.conf 
ext2fs_load="YES"
linux_load="YES"

This was checked as under

Code: 
# gpart show
=>       63  625142385  ada0  MBR  (298G)
         63  204796557     2  linux-data  (97G)
  204796620  204796620     3  freebsd  (97G)
  409593240  205310700     4  linux-data  (97G)
  614903940   10233405     1  linux-swap  (4.9G)
  625137345       5103        - free -  (2.5M)

=>        0  204796620  ada0s3  BSD  (97G)
          0  203423744       1  freebsd-ufs  (97G)
  203423744    1372876          - free -  (670M)

# mount -t ext2fs /dev/ada4 /mnt/
mount: /dev/ada4: No such file or directory
# mount -t ext2fs /dev/ada2 /mnt/
mount: /dev/ada2: No such file or directory
# kldload ext2fs
kldload: can't load ext2fs: File exists

Still I am unable to mount the partition. Suggestions please.
 
You don't have an ada4 drive. The notation should be:
# mount -t ext2fs /dev/ad0s4 /mnt

That's drive ada0 slice (MBR partition) 4.

(This thread is a good example of an X/Y problem.)
 
You don't have an ada4 drive. The notation should be:
# mount -t ext2fs /dev/ad0s4 /mnt

That's drive ada0 slice (MBR partition) 4
Click to expand...


Code: 
# mount -t ext2fs /dev/ad0s4 /mnt
mount: /dev/ad0s4: No such file or directory
# mount -t ext2fs /dev/ada0s
ada0s1%  ada0s2%  ada0s3%  ada0s3a% ada0s4%  
# mount -t ext2fs /dev/ada0s4 /mnt
mount: /dev/ada0s4: Invalid argument
 
ext2fs needs to be marked 'clean' on unmount. Maybe you need to first run e2fsck (sp?) on it, which is available from ports.
 
Let's check the assumptions. Please show the output of
# file -s /dev/ada0s4
Click to expand...

Code: 
# file -s /dev/ada0s4
/dev/ada0s4: Linux rev 1.0 [B]ext4[/B] filesystem data, UUID=75e417c5-4aa5-4d27-822e-fa81b42fb3e2 (extents) (large files) (huge files)

I followed this link http://forums.nas4free.org/viewtopic.php?f=64&t=1861

It mounts the partition but as a normal user there are permission issues. How to fix these?
Code: 
chown foo:wheel /mnt

This is not helping
 
Okay, good. Now we need to answer the question of whether FreeBSD's ext2fs support can handle ext4.
Reply With Quote
Click to expand...

This was already thought by me and after referring to the link http://forums.nas4free.org/viewtopic.php?f=64&t=1861 I did [cmd=]/usr/local/bin/ext4fuse /dev/ada0s4 /mnt/[/cmd].

I was able to mount it but I am getting permission problems. I tried [cmd=]# chown foo:wheel /mnt[/cmd]

Still I am unable to view the partition as a normal user. I can only see it as a super user. People have commented that this is not a neat approach. Any suggestions?

Code: 
ls -al /mnt/
total 16
drwxr-xr-x   2 foo   foo     512  Dec  4 12:36 .
drwxr-xr-x  19 root  wheel  1024 Mar 12 19:17 ..
 
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