(Solved)Moving files between partitions

[isadora]

Hi ozky,

This is what I get;

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[theresalouis@localhost ~]$ su - chown theresalouis:theresalouis /extra
su: user chown does not exist
[theresalouis@localhost ~]$

Regards,
madsaint

[nigelc]

Hello madsaint,
It goes like this

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su -
Password [Put in the  root password here]
chown theresalouis:theresalouis /extra


cheers

[doktor5000]

Hi nigelc,

Followed your suggestion,

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[theresalouis@localhost ~]$ su-
bash: su-: command not found
[theresalouis@localhost ~]$ su-theresalouis
bash: su-theresalouis: command not found
[theresalouis@localhost ~]$ su - theresalouis
Password:
[theresalouis@localhost ~]$ chown theresalouis :theresalouis /extra
chown: cannot access ‘:theresalouis’: No such file or directory
chown: changing ownership of ‘/extra’: Operation not permitted
[theresalouis@localhost ~]$ chown theresalouis : theresalouis /extra
chown: cannot access ‘:’: No such file or directory
chown: cannot access ‘theresalouis’: No such file or directory
chown: changing ownership of ‘/extra’: Operation not permitted
[theresalouis@localhost ~]$

As you can see from the modified command, su - theresalouis, the spacings between commands matter. What should they be?

Regards,
madsaint

[ozky]

Code: Select all

su -

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chown madsaint:madsaint /extra

Those are two different commands you need to first paste that su - to change to root then that other command.
Or if you have problems to understand paste this command to terminal.

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su -c "chown madsaint:madsaint /extra"

[doktor5000]

Hi ozky,

The second command got going. Result ;

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theresalouis@localhost ~]$ su -c "chown theresalouis:theresalouis /extra"
Password:
[theresalouis@localhost ~]$

Okay so... next step?

[isadora]

Please madsaint, place command-output between [CODE]-tags, to improve readability, thanks ahead!!!
Demo: ftp://ftp5.gwdg.de/pub/linux/mandriva/m ... e_tags.ogv

[doktor5000]

Next step is to try to create a file under /extra as your regular user. If it doesn't work, please show the output of

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ls -al /extra
mount|grep extra

[madsaint]

Hi isadora,
Sorry for the angst and thanks for the tip. Will follow it dutifully.

Hi doktor5000,
I've followed through, heres what I got;

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[theresalouis@localhost ~]$ su -c "chown theresalouis:theresalouis /extra"
Password:
[theresalouis@localhost ~]$  ls -al /extra
total 24
drwxr-xr-x  3 theresalouis theresalouis  4096 Mar 11 23:51 ./
drwxr-xr-x 21 root         root          4096 Mar 14 13:27 ../
drwx------  2 root         root         16384 Mar 11 23:51 lost+found/
[theresalouis@localhost ~]$ mount|grep extra
/dev/sdb5 on /extra type ext4 (rw,nosuid,nodev,noexec,relatime,data=ordered,user)
[theresalouis@localhost ~]$

Is this it?
Regards,
madsaint

[madsaint]

Hi doktor5000,

Just tested moving files between drives, IT WORKS! Do I take it to mean that if I added another HDD and mounted it /extra1 and repeated the same steps to enable permissions I get the same results? Please confirm? All these years thinking I messed up using konsole when the last konsole was at fault, man what a load off. Look forward to your reply. If confirmed, we can gladly say
thread closed.

Once again please accept my apologies for the stress I've caused.

Regards,
madsaint

[doktor5000]

Looks fine so far, and yes you could repeat that. Although why do you want to add another partion as /extra1 ? In case you have more disks or partitions better use LVM, to consolidate them all into one filesystem.
It would be helpful if you would provide some more details on what you want to achieve, as mentioned previously.

[madsaint]

Hi doktor5000,

The use of /extra and /extra1 was an earlier suggestion of benmc. Yes I would like to consolidate everything into one large filesystem with access between partitions, instead of several different partitions with different permissions. I am the only user so
separate user access is moot. LVM is new to me, I don' t know what that is. With new HDD' s now available with greater capacities, collation and consolidation will be a near term exercise. I envision having about 3 large capacity HD' s, one to handle downloads, thumb drive transfers, data cd transfers and the like, the other two to collate and categorise and store. It would suit my needs nicely. It is all I need from system storage. I never had this situation with Mandriva, so it' s surprising to me that that ability didn't' carry over to Mageia. I now know it can be achieved so I can continue as I did with Mandriva.

I will continue testing between partitions today, in case we missed something. Just to be absolutely sure. I' ll write again with the results.

No more /var, I promise.
Regards,
madsaint

[nigelc]

madsaint,
Here is some documentation : re file systems http://www.tldp.org/LDP/intro-linux/htm ... 03_01.html

http://www.tldp.org/
cheers
NIgel.

[jiml8]

Hi doktor5000,

The use of /extra and /extra1 was an earlier suggestion of benmc. Yes I would like to consolidate everything into one large filesystem with access between partitions, instead of several different partitions with different permissions. I am the only user so separate user access is moot.

I would not agree that separate user access is moot. Maintaining separate user access can play a very important role in system security.

In an environment where malware is increasingly common - and where there are specific forms of malware (particularly cryptoware) that can attack Linux, maintaining separate partitions with separate permissions can give you a substantial layer of defense, with a minimal cost in inconvenience in usage.

As a specific example, my workstation has two SSDs for day to day use, and two hard drives that function mostly for archive and backup. In addition, I have a persistent connection to an iscsi share on a NAS, which also is used for backup. My SSDs contain my system (with appropriate root:root permissions) and my /home (with my user permissions). My hard drives contain a number of different directories used for different purposes, both archival and backup, and the ower:group of the vast majority of those directories is root:root, with permissions that in some cases ensure that only root can even enter the directories. The share on the NAS is owned by root and is only accessible by root.

On a daily basis, my system automatically backs up the / filesystem to a directory on one hard drive that is only accessible to root, and backs up /home to the other hard drive, again to a directory only accessible by root. Also, the entire contents of the system (including many of the directories on the hard drives that are archival) are backed up to the NAS, into directories that are only accessible by root.

Should my system be compromised by malware, that malware will only have my user permissions (presuming there is no effective privilege escalation exploit, which for the most part is a safe assumption) and therefore the malware will not be able to compromise my backups, even if it does tear up my /home directory. Should malware attack my system, and should I simultaneously experience a hard drive failure with one of the backup drives, there is still the other backup on the NAS. I also use the NAS to backup that iscsi share in a fashion that is totally inaccessible to my workstation, so even a privilege escalation attack can't wipe everything out. And, since the NAS runs FreeBSD (not Linux), there won't be any privilege escalation exploit that works on both the workstation and the NAS. Thus, one or the other will always be safe against a successful attack.

Linux is resistant to malware, but not invulnerable. And in the recent past, it has been specifically targeted. Taking steps to secure against all conceivable attacks at the time you set a system up is not a major exercise, and getting into the proper "security" mindset could save your bacon going forward.

I'm agnostic on the use of LVM on a personal system. I don't do it myself because I prefer to have my system partitioned. If you (or Doktor) don't agree, I certainly won't debate the point. But with or without LVM, configuring for security is a simply outstanding idea...and now is the time for you to do it.

[madsaint]

Hi jiml8,

I've been hit by malware before, so I take your point strongly. Still deciding on what firewall / cryptoprotection to use, a little trial and I should be set.

Hi doktor5000,

Success! All works as needed. Permissions have been changed, access is allowed. I think we can close this thread. A big thank you to you and the team.

On a side note I'm starting a thread on the problems I'm now having with Nvidia. I've gone through the viideo thread and I've found disparate threads on what I think would help, oddly they happen to be by you. Hope you can help.

You have my gratitude,
madsaint

[doktor5000]

As a general hint and golden rule: Please only one problem per thread

Please mark the thread accordingly by editing the topic of the first post and prefix it by [SOLVED], thanks