[elrepo] [CentOS] NTFS and elrepo

[Ron Loftin]

This message is re-posted from the CentOS mail list, since it contains the
best description I've managed of my situation.  As far as Akemi and I can tell,
this SHOULD be working.

On Sun, 2009-11-01 at 16:41 -0800, Akemi Yagi wrote:
> On Sun, Nov 1, 2009 at 3:42 PM, Ron Loftin <reloftin at twcny.rr.com> wrote:
> >
> > On Sun, 2009-11-01 at 15:20 -0800, Akemi Yagi wrote:
> 
> >> Something is wrong here.  You are missing
> >> /lib/modules/2.6.18-128.el5/extra/ntfs/ntfs.ko that the symlinks are
> >> pointing to.  Are those symlinks red-blinking?
> >
> > It's there.  I must have missed it with my cut-and-paste before.
> >
> > ( Side note:  I can't stand all that color-coding with the "ls" command,
> > so I disable it.  That's just my prejudice from growing up with UNIX in
> > the '80s and '90s on REAL monochrome terminals. ;)
> 
> I fully understand (similar generation?!).
> 
> > ls -l /lib/modules/2.6.18-128.el5/extra/ntfs/ntfs.ko
> > -rw-r--r-- 1 root root 235684 Oct  9
> > 13:00 /lib/modules/2.6.18-128.el5/extra/ntfs/ntfs.ko
> 
> Alright. Then as far as installation of the modules are concerned,
> there does not seem to be a problem.  So, just for a confirmation,
> 'modprobe ntfs' and 'modprobe fuse' run without any errors and lsmod
> shows both modules loaded?

Seems to work.  Both "modprobe" commands run with no error, and lsmod
shows this:

lsmod | egrep 'fuse|ntfs'
fuse                   49237  0 
ntfs                  196760  0 

> 
> If ntfs-3g is working for you, I would expect the ntfs module from
> kmod-ntfs works, too.  

That's what I thought.  However, when I mount a partition created with
Windoze 2000, I can read files and directories, but not create or modify
anything.  Here's the actual scenario ( all commands performed as root):

# dmesg | tail
FS-Cache: Loaded
[drm] Initialized drm 1.0.1 20051102
ACPI: PCI Interrupt Link [LNKA] enabled at IRQ 9
PCI: setting IRQ 9 as level-triggered
ACPI: PCI Interrupt 0000:00:01.0[A] -> Link [LNKA] -> GSI 9 (level, low)
-> IRQ 9
[drm] Initialized i810 1.4.0 20030605 on minor 0
[drm] Using v1.4 init.
NTFS driver 2.1.27 [Flags: R/W MODULE].
fuse init (API version 7.10)
NTFS volume version 3.0.

# fdisk -l /dev/hda

Disk /dev/hda: 8700 MB, 8700346368 bytes
255 heads, 63 sectors/track, 1057 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

   Device Boot      Start         End      Blocks   Id  System
/dev/hda1   *           1         522     4192933+   7  HPFS/NTFS
/dev/hda2             523        1056     4289355    f  W95 Ext'd (LBA)
/dev/hda5             523         783     2096451    7  HPFS/NTFS
/dev/hda6             784        1056     2192841    b  W95 FAT32

# mount /dev/hda5 /mnt
( no error returned )

# mount
/dev/hdb1 on / type ext3 (rw,nodev)
proc on /proc type proc (rw)
sysfs on /sys type sysfs (rw)
devpts on /dev/pts type devpts (rw,gid=5,mode=620)
tmpfs on /dev/shm type tmpfs (rw)
/dev/hdb3 on /var type ext3 (rw,nosuid,nodev)
/dev/hdb2 on /tmp type ext3 (rw,nosuid,nodev)
none on /proc/sys/fs/binfmt_misc type binfmt_misc (rw)
sunrpc on /var/lib/nfs/rpc_pipefs type rpc_pipefs (rw)
/dev/hda5 on /mnt type ntfs (rw)

Note the last line claims that hda5 is mounted with type "ntfs" and
"rw".

# /bin/ls -la /mnt
total 1048592
drwx------  1 root root       4096 Oct 31 22:47 .
drwxr-xr-x 26 root root       4096 Nov  1 19:05 ..
-rw-------  1 root root 1073741824 Oct 31 22:43 pagefile.sys
drwx------  1 root root          0 Feb  2  2006 RECYCLER
drwx------  1 root root          0 Oct 31 21:31 spool
drwx------  1 root root          0 Jan 24  2006 System Volume
Information
drwx------  1 root root       4096 Oct 31 22:50 tmp

# touch /mnt/testfile
touch: cannot touch `/mnt/testfile': Permission denied
# touch /mnt/tmp/testfile
touch: cannot touch `/mnt/tmp/testfile': Permission denied

So, what am I missing, and where should I look ?

> However, they are not the same.  The latter was
> built from the ntfs code in CentOS 5.3 (which was originally broken).
> I believe it worked after a patch was applied and this was tested by
> CentOS QA members.
> 
> Akemi
> _______________________________________________
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> CentOS at centos.org
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-- 
Ron Loftin                      reloftin at twcny.rr.com

"God, root, what is difference ?"       Piter from UserFriendly