On Wed, 2007-07-25 at 03:41 +0700, Patrik Hasibuan wrote:

suseonthelap:/ # cat /etc/mtab /dev/hda3 / auto rw,acl,user_xattr 0 0 proc /proc proc rw 0 0 sysfs /sys sysfs rw 0 0 debugfs /sys/kernel/debug debugfs rw 0 0 udev /dev tmpfs rw 0 0 devpts /dev/pts devpts rw,mode=0620,gid=5 0 0 /dev/hda2 /media/sementara ext2 rw,acl,user_xattr 0 0 /dev/hda4 /media/datatank ext2 rw,acl,user_xattr 0 0 securityfs /sys/kernel/security securityfs rw 0 0 none /proc/sys/fs/binfmt_misc binfmt_misc rw 0 0 /dev/hdc /media/openSUSE10.2-IL022007 iso9660 ro,nosuid,nodev,noatime,uid=1000,utf8 0 0 suseonthelap:/ # ls -l /media total 26 drwxr-xr-x 5 root root 4096 2007-07-24 18:41 datatank -rw-r--r-- 1 root root 88 2007-07-25 02:30 .hal-mtab --wS--Sr-x 1 root root 0 2007-07-22 07:43 .hal-mtab-lock dr-xr-xr-x 8 patrikh root 6144 2007-01-03 09:39 openSUSE10.2-IL022007 drwxr-xr-x 17 root root 4096 2007-07-24 02:27 sementara drwxr-xr-x 2 root root 4096 2007-07-23 05:31 sementara2 drwxr-xr-x 2 root root 4096 2006-11-28 04:02 xmms_audio_cd suseonthelap:/ # whoami root

Patrik, I'm confused. Earlier you wrote:

with my non-computer administrator login account I can not write anything

and your prompt was 'patrikh@suseonthelap' suggesting you were a non-root user. Now you're giving us root output. Could you decide on which user has the problem and repeat the exercise as that user (should give the same answers, but just to be sure :) Then show us the output when you cat a small file and try to touch a small file, to show us that you can read and that you can't write. Thanks, Dave -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org

Patrik Hasibuan wrote:

of course the account is administrator because before doing what you told me, I did : " patrikh@suseonthelap:/> su Password: suseonthelap:/ # ".

What I meant was, a normal user account (non administrator login account) can not write on "hda2" and "hda4" although I put "rw, acl ....." in the "/etc/fstab". That's what I am confused about. How can I make a normal user login account can use/write the space on the other partitions.

The error message is "permission denied".

Patrik, I'm sorry if I seem to be making you do unnecessary things. I thought that you had a technical problem that you hadn't explained very well, so I was trying to get more information to understand it. But now I think the problem is that you don't understand the principles of file permissions in Unix/Linux, so I suggest you read up on that. One place to start might be Chapter 7 of the Startup Guide: http://www.novell.com/documentation/opensuse102/pdfdoc/opensuse102_startup/o... I'm still not entirely sure what it is you want to do (you didn't actually do what I asked last time, so I still don't have the information :) But I suspect that to do what you want, you would have to change the file permissions on those filesystems. That's a very bad idea unless you really understand what you're doing, given that they are the root filesystems of other operating systems. Perhaps if you explain in detail what it is you want to do, we could suggest the best way to do it. Cheers, Dave -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hi Patrik, You're having a problem with file permissions, but it's pretty easy to solve this. I'm not sure how familiar you are with how linux deals with permissions, but I'll try to make this brief. You can find much better explanations online (the link dave howorth posted for you is a good place to start.) this bit:

...

...

total 26 drwxr-xr-x 5 root root 4096 2007-07-24 18:41 datatank -rw-r--r-- 1 root root 88 2007-07-25 02:30 .hal-mtab --wS--Sr-x 1 root root 0 2007-07-22 07:43 .hal-mtab-lock dr-xr-xr-x 8 patrikh root 6144 2007-01-03 09:39 openSUSE10.2-IL022007 drwxr-xr-x 17 root root 4096 2007-07-24 02:27 sementara drwxr-xr-x 2 root root 4096 2007-07-23 05:31 sementara2 drwxr-xr-x 2 root root 4096 2006-11-28 04:02 xmms_audio_cd suseonthelap:/ # whoami

^^^^^^^^^^ means r-read w-write x-execute for owner (in this case root, as it says next to the chart), then group (also root,) then other. the two partitions in questions are owned by user root and group root, but are only writable by the user. i'm not sure how'd you set up /etc/fstab to make them writable by a different user/group, but it's easy enough to change the ownership or permissions outside manually. if you are the only one on your system, the simplest thing to do would be (at a command prompt as root) chown patrickh datatank which would set you as the owner user of the file. if you have multiple users on your system and aren't too worried about security you could instead change the permissions with chmod 777 datatank which would set the permissions to read, write, execute for everyone on the system. if you just want to swap data back and forth between the partitions, you might be best off using chown or chmod on specific directories rather than making the whole thing completely accessible. for instance, you could just chown patrickh /media/datatank/home/patrickh (assuming you're using the same logins, etc. etc.) which would allow your patrickh user on suse to access fully the home directories on the other partitions, but would require you to login as root to go in and change the important config files on those other partitions. Derek -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.5 (GNU/Linux) iD8DBQFGp28Sg39m4F98CH4RAgnXAJ4tSz4mPIbp7spWg0HZ2ZUZGxbC3QCfSO1e WzDsCjc9N5jXhVBN5/KhYwE= =Zn6G -----END PGP SIGNATURE----- -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org

OK, Dave. I'll be carefull. If than, I'll just create a subdirectory which shared to the others operating system and users.... so I can do "chmod 777" only for the subdirectory. I feel this mailing list with the friends inside is so generous to me. You all help me a lot. My boss is so mise for hand because he doesn't want to teach me even only a little bit. I'm lucky this mailing list has so many generous guys. Thank you very much, my friends. On Wed, 25 Jul 2007 16:47:14 +0100 Dave Howorth wrote:

Michael Derek Barnett wrote:

...

if you are the only one on your system, the simplest thing to do would be (at a command prompt as root) chown patrickh datatank which would set you as the owner user of the file.

Patrik, *DON'T DO THIS*.

Michael, these partitions are the root filesystems of other operating systems. He can't cavalierly change permissions on them if he ever wants them to boot and work as before.

Cheers, Dave -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org

-- Patrik Hasibuan Junior Programmer -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org

OK, Sunny. Thanks alot for your advise. Thank you very much. On Wed, 25 Jul 2007 11:23:23 -0500 Sunny wrote:

On 7/25/07, Michael Derek Barnett wrote:

...

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1

if you just want to swap data back and forth between the partitions, you might be best off using chown or chmod on specific directories rather than making the whole thing completely accessible. for instance, you could just chown patrickh /media/datatank/home/patrickh (assuming you're using the same logins, etc. etc.) which would allow your patrickh user on suse to access fully the home directories on the other partitions, but would require you to login as root to go in and change the important config files on those other partitions.

Derek

Usually I do not recommend writing to the other OSes system partitions at all. Changing the privileges may result in the other OS to not function properly.

For me, the safest way is - make the necessary folders/files readable using their own OS. Then you can read them from the other OSes on the machine. If you need to modify them, store them locally in the OS you use at the moment, and them fatch them back when you boot in the other OS. Yes, that way you will have 2 duplicate copies, but they can be cleaned after the transfer, and is much much safer.

I started using this approach in the old days, when I dual/triple booted with win. Back then, the NTFS write support in linux was not very reliable. And there was ext2 importer for win. And I was safe not damaging any of the filesystems, while working with them from the other OS.

Even if in Patrick's situation, he does not have this limitation (all etc2 partitions), creating such a habit can avoid possible future disasters.

Or, create a separate partition for the shared files, so you separate them from the OSes (as we used to do with a FAT32 partition to share between win/linux).

Yeah, a long writing, but I guess the moral of the story is - Patric, please reconsider your desire to write to these partitions - most probably you can go without it, even if it is possible, as Derek suggested.

Cheers

-- Svetoslav Milenov (Sunny)

Even the most advanced equipment in the hands of the ignorant is just a pile of scrap. -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org

-- Patrik Hasibuan Junior Programmer -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org

OK.... thank you very much, Michael. Wow, I'm so happy now. Thanks again thousands time. === On Wed, 25 Jul 2007 11:41:06 -0400 Michael Derek Barnett wrote:

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1

Hi Patrik,

You're having a problem with file permissions, but it's pretty easy to solve this. I'm not sure how familiar you are with how linux deals with permissions, but I'll try to make this brief. You can find much better explanations online (the link dave howorth posted for you is a good place to start.)

this bit:

...

...

...

total 26 drwxr-xr-x 5 root root 4096 2007-07-24 18:41 datatank -rw-r--r-- 1 root root 88 2007-07-25 02:30 .hal-mtab --wS--Sr-x 1 root root 0 2007-07-22 07:43 .hal-mtab-lock dr-xr-xr-x 8 patrikh root 6144 2007-01-03 09:39 openSUSE10.2-IL022007 drwxr-xr-x 17 root root 4096 2007-07-24 02:27 sementara drwxr-xr-x 2 root root 4096 2007-07-23 05:31 sementara2 drwxr-xr-x 2 root root 4096 2006-11-28 04:02 xmms_audio_cd suseonthelap:/ # whoami

^^^^^^^^^^ means r-read w-write x-execute for owner (in this case root, as it says next to the chart), then group (also root,) then other.

the two partitions in questions are owned by user root and group root, but are only writable by the user. i'm not sure how'd you set up /etc/fstab to make them writable by a different user/group, but it's easy enough to change the ownership or permissions outside manually.

if you are the only one on your system, the simplest thing to do would be (at a command prompt as root) chown patrickh datatank which would set you as the owner user of the file. if you have multiple users on your system and aren't too worried about security you could instead change the permissions with chmod 777 datatank which would set the permissions to read, write, execute for everyone on the system.

if you just want to swap data back and forth between the partitions, you might be best off using chown or chmod on specific directories rather than making the whole thing completely accessible. for instance, you could just chown patrickh /media/datatank/home/patrickh (assuming you're using the same logins, etc. etc.) which would allow your patrickh user on suse to access fully the home directories on the other partitions, but would require you to login as root to go in and change the important config files on those other partitions.

Derek

-----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.5 (GNU/Linux)

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-- Patrik Hasibuan Junior Programmer -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org