Hi there,
I am using the following system: Initially I had 64 Gb memory. Then I added extra memory. After added the memories I lost the GUI (maybe there was update issue with yum). Then I downloaded and installed "NVIDIA-Linux-x86_64-331.67.run". Now the GUI is working. But I can't login as a user in the desktop using my ID and password. But I can login through ssh using the same username and password. I also can login as root and I can access all of my files. But I don't want to login as root. I am new in the system administrator arena. Would you please to help me.

Best Regards
Zillur

System: Host: workstation01 Kernel: 3.10.0-229.14.1.el7.x86_64 x86_64 (64 bit gcc: 4.8.3)
Desktop: Gnome 3.8.4 Distro: CentOS Linux release 7.1.1503 (Core)
Machine: Mobo: ASUSTeK model: Z10PE-D16 WS v: Rev 1.xx
Bios: AmericaSystem: Host: workstation01 Kernel: 3.10.0-229.14.1.el7.x86_64 x86_64 (64 bit gcc: 4.8.3)
Desktop: Gnome 3.8.4 Distro: CentOS Linux release 7.1.1503 (Core)
Machine: Mobo: ASUSTeK model: Z10PE-D16 WS v: Rev 1.xx
Bios: American Megatrends v: 1001 date: 03/17/2015
CPU(s): 2 Octa core Intel Xeon E5-2630 v3s (-HT-MCP-SMP-) cache: 40960 KB
flags: (lm nx sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx) bmips: 76630
clock speeds: max: 3200 MHz 1: 1200 MHz 2: 1316 MHz 3: 1200 MHz
4: 1399 MHz 5: 1287 MHz 6: 1219 MHz 7: 1214 MHz 8: 1278 MHz
9: 1298 MHz 10: 1472 MHz 11: 1803 MHz 12: 1200 MHz 13: 1231 MHz
14: 1237 MHz 15: 1296 MHz 16: 1200 MHz
Graphics: Card: NVIDIA GK208 [GeForce GT 720] bus-ID: 81:00.0
Display Server: X.org 1.15.0 driver: nvidia
tty size: 80x24 Advanced Data: N/A for root
Audio: Card-1 NVIDIA GK208 HDMI/DP Audio Controller
driver: snd_hda_intel bus-ID: 81:00.1
Card-2 Intel C610/X99 series HD Audio Controller
driver: snd_hda_intel bus-ID: 00:1b.0
Sound: ALSA v: k3.10.0-229.14.1.el7.x86_64
Network: Card-1: Intel I210 Gigabit Network Connection
driver: igb v: 5.2.13-k port: 5000 bus-ID: 05:00.0
IF: eth0 state: down mac: <filter>
Card-2: Intel I210 Gigabit Network Connection
driver: igb v: 5.2.13-k port: 4000 bus-ID: 06:00.0
IF: eth1 state: up speed: 1000 Mbps duplex: full mac: <filter>
Drives: HDD Total Size: 16120.9GB (11.2% used)
ID-1: /dev/sda model: MR9361 size: 16000.9GB temp: 0C
ID-2: /dev/sdb model: INTEL_SSDSCKJW12 size: 120.0GB temp: 46C
Partition: ID-1: / size: System: Host: workstation01 Kernel: 3.10.0-229.14.1.el7.x86_64 x86_64 (64 bit gcc: 4.8.3)
Desktop: Gnome 3.8.4 Distro: CentOS Linux release 7.1.1503 (Core)
Machine: Mobo: ASUSTeK model: Z10PE-D16 WS v: Rev 1.xx
Bios: American Megatrends v: 1001 date: 03/17/2015
CPU(s): 2 Octa core Intel Xeon E5-2630 v3s (-HT-MCP-SMP-) cache: 40960 KB
flags: (lm nx sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx) bmips: 76630
clock speeds: max: 3200 MHz 1: 1200 MHz 2: 1316 MHz 3: 1200 MHz
4: 1399 MHz 5: 1287 MHz 6: 1219 MHz 7: 1214 MHz 8: 1278 MHz
9: 1298 MHz 10: 1472 MHz 11: 1803 MHz 12: 1200 MHz 13: 1231 MHz
14: 1237 MHz 15: 1296 MHz 16: 1200 MHz
Graphics: Card: NVIDIA GK208 [GeForce GT 720] bus-ID: 81:00.0
Display Server: X.org 1.15.0 driver: nvidia
tty size: 80x24 Advanced Data: N/A for root
Audio: Card-1 NVIDIA GK208 HDMI/DP Audio Controller
driver: snd_hda_intel bus-ID: 81:00.1
Card-2 Intel C610/X99 series HD Audio Controller
driver: snd_hda_intel bus-ID: 00:1b.0
Sound: ALSA v: k3.10.0-229.14.1.el7.x86_64
Network: Card-1: Intel I210 Gigabit Network Connection
driver: igb v: 5.2.13-k port: 5000 bus-ID: 05:00.0
IF: eth0 state: down mac: <filter>
Card-2: Intel I210 Gigabit Network Connection
driver: igb v: 5.2.13-k port: 4000 bus-ID: 06:00.0
IF: eth1 state: up speed: 1000 Mbps duplex: full mac: <filter>
Drives: HDD Total Size: 16120.9GB (11.2% used)
ID-1: /dev/sda model: MR9361 size: 16000.9GB temp: 0C
ID-2: /dev/sdb model: INTEL_SSDSCKJW12 size: 120.0GB temp: 46C
Partition: ID-1: / size: 108G used: 6.7G (7%) fs: xfs dev: /dev/sdb2
ID-2: /boot size: 497M used: 251M (51%) fs: xfs dev: /dev/sdb1
ID-3: swap-1 size: 4.29GB used: 0.00GB (0%) fs: swap dev: /dev/sdb3
RAID: No RAID devices: /proc/mdstat, md_mod kernel module present
Sensors: System Temperatures: cpu: 36.0C mobo: N/A gpu: 0.0:47C
Fan Speeds (in rpm): cpu: N/A
Info: Processes: 318 Uptime: 3 days Memory: 2550.2/177047.7MB
Init: systemd runlevel: 5 Gcc sys: 4.8.3
Client: Shell (bash 4.2.461) inxi: 2.2.28 108G used: 6.7G (7%) fs: xfs dev: /dev/sdb2
ID-2: /boot size: 497M used: 251M (51%) fs: xfs dev: /dev/sdb1
ID-3: swap-1 size: 4.29GB used: 0.00GB (0%) fs: swap dev: /dev/sdb3
RAID: No RAID devices: /proc/mdstat, md_mod kernel module present
Sensors: System Temperatures: cpu: 36.0C mobo: N/A gpu: 0.0:47C
Fan Speeds (in rpm): cpu: N/A
Info: Processes: 318 Uptime: 3 days Memory: 2550.2/177047.7MB
Init: systemd runlevel: 5 Gcc sys: 4.8.3
Client: Shell (bash 4.2.461) inxi: 2.2.28 n Megatrends v: 1001 date: 03/17/2015
CPU(s): 2 Octa core Intel Xeon E5-2630 v3s (-HT-MCP-SMP-) cache: 40960 KB
flags: (lm nx sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx) bmips: 76630
clock speeds: max: 3200 MHz 1: 1200 MHz 2: 1316 MHz 3: 1200 MHz
4: 1399 MHz 5: 1287 MHz 6: 1219 MHz 7: 1214 MHz 8: 1278 MHz
9: 1298 MHz 10: 1472 MHz 11: 1803 MHz 12: 1200 MHz 13: 1231 MHz
14: 1237 MHz 15: 1296 MHz 16: 1200 MHz
Graphics: Card: NVIDIA GK208 [GeForce GT 720] bus-ID: 81:00.0
Display Server: X.org 1.15.0 driver: nvidia
tty size: 80x24 Advanced Data: N/A for root
Audio: Card-1 NVIDIA GK208 HDMI/DP Audio Controller
driver: snd_hda_intel bus-ID: 81:00.1
Card-2 Intel C610/X99 series HD Audio Controller
driver: snd_hda_intel bus-ID: 00:1b.0
Sound: ALSA v: k3.10.0-229.14.1.el7.x86_64
Network: Card-1: Intel I210 Gigabit Network Connection
driver: igb v: 5.2.13-k port: 5000 bus-ID: 05:00.0
IF: eth0 state: down mac: <filter>
Card-2: Intel I210 Gigabit Network Connection
driver: igb v: 5.2.13-k port: 4000 bus-ID: 06:00.0
IF: eth1 state: up speed: 1000 Mbps duplex: full mac: <filter>
Drives: HDD Total Size: 16120.9GB (11.2% used)
ID-1: /dev/sda model: MR9361 size: 16000.9GB temp: 0C
ID-2: /dev/sdb model: INTEL_SSDSCKJW12 size: 120.0GB temp: 46C
Partition: ID-1: / size: 108G used: 6.7G (7%) fs: xfs dev: /dev/sdb2
ID-2: /boot size: 497M used: 251M (51%) fs: xfs dev: /dev/sdb1
ID-3: swap-1 size: 4.29GB used: 0.00GB (0%) fs: swap dev: /dev/sdb3
RAID: No RAID devices: /proc/mdstat, md_mod kernel module present
Sensors: System Temperatures: cpu: 36.0C mobo: N/A gpu: 0.0:47C
Fan Speeds (in rpm): cpu: N/A
Info: Processes: 318 Uptime: 3 days Memory: 2550.2/177047.7MB
Init: systemd runlevel: 5 Gcc sys: 4.8.3
Client: Shell (bash 4.2.461) inxi: 2.2.28


I also tried to switch user in the command line. But.....

[root@workstation01 ~]# pwd
/root
[root@workstation01 ~]# su zillur
bash-4.2$ ls
ls: cannot open directory .: Permission denied
bash-4.2$ pwd
/root
bash-4.2$ su
Password:
[root@workstation01 ~]# ls
anaconda-ks.cfg initial-setup-ks.cfg Public
Desktop Music Templates
Documents NVIDIA-Linux-x86_64-331.67.run Videos
Downloads Pictures

Try and see what happens.

Thank you very much for your kind suggestions. I have tried like this and got this:

[root@workstation01 root]# su - zillur
Last login: Tue Oct 6 13:21:59 EDT 2015 on :0
su: warning: cannot change directory to /home/zillur: No such file or directory
-bash-4.2$ ls
ls: cannot open directory .: Permission denied
-bash-4.2$ pwd
/run/media/root
-bash-4.2$ pwd
/run/media/root
-bash-4.2$ su
Password:
[root@workstation01 root]# cd '/run/media/root/831da725-3de4-46de-b6d4-30d15fd92d25'
[root@workstation01 831da725-3de4-46de-b6d4-30d15fd92d25]# ls
act edgardo gary steve zillur
[root@workstation01 831da725-3de4-46de-b6d4-30d15fd92d25]# pwd
/run/media/root/831da725-3de4-46de-b6d4-30d15fd92d25
[root@workstation01 831da725-3de4-46de-b6d4-30d15fd92d25]#
[root@workstation01 831da725-3de4-46de-b6d4-30d15fd92d25]# cd zillur/
[root@workstation01 zillur]# ls
Desktop Downloads lib Pictures Templates
Documents include Music Public Videos
[root@workstation01 zillur]# pwd
/run/media/root/831da725-3de4-46de-b6d4-30d15fd92d25/zillur

What should I do now?

Are you booting from installation media?
'/run/media/root/831da725-3de4-46de-b6d4-30d15fd92d25' looks 'funny'.

Also, can you paste the /etc/fstab file here?
Thank you.

1 members found this post helpful.

But what should I really do?

If you are replying from email notification that this post was replied to,
you need to refresh this page and re-read my last question.

Can you paste the /etc/fstab file here?

1 members found this post helpful.

Sorry for that. Here is the /etc/fstab file:

GNU nano 2.3.1 File: fstab


#
# /etc/fstab
# Created by anaconda on Fri Jul 24 12:08:27 2015
#
# Accessible filesystems, by reference, are maintained under '/dev/disk'
# See man pages fstab(5), findfs(8), mount(8) and/or blkid(8) for more info
#
UUID=a7b150bf-f04a-4af0-917f-b9e8a6a45f35 / xfs defaults 0 0
UUID=d92c7e03-d559-48be-aaef-eb58b1608e6a /boot xfs defaults 0 0
/dev/sdb1 /home xfs defaults 0 0
UUID=bc6779ef-36cb-41ed-8f5d-21d2e7248b6b swap swap defaults 0 0

Thanks.

Don't be sorry. *it happens.
Not using the system as root is wise and smart and good for your Linux "mojo".

Sorry, I don't know what the fix is.
But don't worry, someone will be along who does.

Don't panic either, I believe it is fix-able.
Have a Great Day!

1 members found this post helpful.

[never mind, I was wrong]

In post 8 with your fstab, it shows to / of the filesystem with its UUID which is completely differnt from what you are using in your earlier output: /run/media/root/831da725-3de4-46de-b6d4-30d15fd92d25. The fstab UUID is: UUID=a7b150bf-f04a-4af0-917f-b9e8a6a45f35 / xfs defaults 0 0

I'm curious as to how you are getting the /run/media/root/UUID. Your output from ls on this directory shows four user which also seems odd as they would usually show under a /home directory. I don't use CentOS so someone who does may have some advice.

1 members found this post helpful.

Thanks a lot for your suggestions. After adding extra memory and installing nvidia, in /home directory there is no user.

So you mean to say that you added twice extra memory, and after the second time, you're not finding anything under /home or are you just reiterating what you said in the first post?

1 members found this post helpful.

Yeah. After adding the new memories, I couldn't boot. Then Installed nvidia and now in the /home directory there is no user.

Are you sure you are booting off the hard drive and not some other media?