Files not saved on FAT32

[surya.theSun]

I have a strange problem.
I have my FAT32 partitions mounted in my linux(SuSE 10)
Sometimes when I save any files to these partitions I don't see them again when I reboot into Windows or into Linux.
I observed this more than once.

Can some one give me any hints as to what's wrong?
I can provide further information in case needed.

[devils casper]

post the contents of /etc/fstab file.

[surya.theSun]

/dev/sda9            /                    reiserfs   acl,user_xattr        1 1
/dev/sda10           /home                reiserfs   acl,user_xattr        1 2
/dev/sda1            /windows/C           ntfs       ro,users,gid=users,umask=0002,nls=utf8 0 0
/dev/sda5            /windows/D           vfat       rw,users,uid=surya,gid=users,umask=0002,utf8=true 0 0
/dev/sda6            /windows/E           vfat       rw,users,uid=surya,gid=users,umask=0002,utf8=true 0 0
/dev/sda7            /windows/F           vfat       rw,users,uid=surya,gid=users,umask=0002,utf8=true 0 0
/dev/sda8            /windows/G           vfat       rw,users,uid=surya,gid=users,umask=0002,utf8=true 0 0
/dev/sda11           swap                 swap       defaults              0 0
proc                 /proc                proc       defaults              0 0
sysfs                /sys                 sysfs      noauto                0 0
debugfs              /sys/kernel/debug    debugfs    noauto                0 0
usbfs                /proc/bus/usb        usbfs      noauto                0 0
devpts               /dev/pts             devpts     mode=0620,gid=5       0 0

[koenw405]

Your C partition is being mounted as read-only

If you change this line:

/dev/sda1            /windows/C           ntfs       ro,users,gid=users,umask=0002,nls=utf8 0 0

into

/dev/sda1            /windows/C           ntfs       rw,users,gid=users,umask=0002,nls=utf8 0 0

it should be fixed

[surya.theSun]

/dev/sda1 is a NTFS partition and cannot be read-write (unless I use ntfs-3g).
I experience this problem when I save to my other windows partitions, FAT32 ones.

[nightshade_1977]

are they large files (eg. >4GB)
fat32 has a 4GB limit

without more info that is my best guess

some things you should post (if they apply)

1) specific app used to save the files
2) specific site your downloading from
3) if it's large files but under the 4GB limit
4) any error you may get
5) if they are copied/moved from network
6) is it 1 specific partition or all

I may not know all the answers but I can fake it pretty good

[surya.theSun]

They are all less than 4GB.
I usually download files using Firefox.
I get no error messages as such. When I save them to any FAT32 drive I can see them and use them. Once I reboot, they are no more available!
This happens randomly.

[devils casper]

is there any specific reason for providing ownership to user 'surya'?
edit vfat entries in /etc/fstab file.

/dev/sda5   /windows/D  vfat  defaults,umask=0 0 0

[surya.theSun]

'surya' is the normal username I use my computer with.
I just wanted read-write access to FAT32 partition while in my user account.

I will try what you suggested and get back to you
Thank You

[devils casper]

you dont need to specify username in /etc/fstab file. umask=0 allow all users to access partition.