System management

satimis · 06-27-2006, 09:32 AM

Hi folks,

FC5_64

On pressing following key combination;
1) Ctrl+Alt+F2 (supposed to be "init 1")
2) Ctrl+Alt+F4 (supposed to be "init 3")

Which command will be run to confirm/prove them?

Running;
# fdisk -l /dev/sda

Code:

Disk /dev/sda: 80.0 GB, 80026361856 bytes
255 heads, 63 sectors/track, 9729 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

   Device Boot      Start         End      Blocks   Id  System
/dev/sda1   *           1          13      104391   83  Linux
/dev/sda2              14        1734    13823932+  83  Linux
/dev/sda3            1735        3008    10233405   83  Linux
/dev/sda4            3009        9729    53986432+   5  Extended
/dev/sda5            3009        3262     2040223+  82  Linux swap / Solaris

How to identify them which partitions are / and /home respectively? Which command to be used?

There is no entry on /etc/fstab

# cat /etc/fstab

Code:

LABEL=/                 /                       ext3    defaults        1 1
LABEL=/boot1            /boot                   ext3    defaults        1 2
devpts                  /dev/pts                devpts  gid=5,mode=620  0 0
tmpfs                   /dev/shm                tmpfs   defaults        0 0
LABEL=/home             /home                   ext3    defaults        1 2
proc                    /proc                   proc    defaults        0 0
sysfs                   /sys                    sysfs   defaults        0 0
LABEL=SWAP-sda5         swap                    swap    defaults        0 0
/dev/fd0                /mnt/floppy             auto    noauto,owner,user,kudzu 0 0

Please advise. TIA

B.R.
satimis

tangle · 06-27-2006, 09:42 AM

Quote:

Originally Posted by satimis

On pressing following key combination;
1) Ctrl+Alt+F2 (supposed to be "init 1")
2) Ctrl+Alt+F4 (supposed to be "init 3")

Which command will be run to confirm/prove them?

Not sure what you mean. You should get a new log in prompt.

Quote:

Originally Posted by satimis

How to identify them which partitions are / and /home respectively? Which command to be used?

df -h will show you.

satimis · 06-27-2006, 09:46 AM

Hi tangle,

Quote:

df -h will show you.

Noted with tks.

B.R.
satimis

reddazz · 06-27-2006, 09:54 AM

Code:

On pressing following key combination;
1) Ctrl+Alt+F2 (supposed to be "init 1")
2) Ctrl+Alt+F4 (supposed to be "init 3")

Which command will be run to confirm/prove them?

These key combinations have nothing to do with runlevels. They are for switching between virtual terminals when you are logged into a gui. If you are not logged into a gui, you would use Alt-Fn (where Fn is any number from 1 to 6. If you need to change runlevels, you can do this as root, from any command line interface.

If you use ext3, REdhat/Fedora Core, uses lables to identify partitions (why they do this puzzles me). Anyway if you can't figure out the partition layout, try running "df -h" and maybe it will list your partitions.

Theorist · 06-27-2006, 09:57 AM

Hi satimis,
Just do

Quote:

$ mount -l

With Regards,
Theorist

WhatsHisName · 06-27-2006, 10:05 AM

Quote:

Redhat/Fedora Core, use labels to identify partitions (why they do this puzzles me)

One explanation that I have heard is that it simplifies locating partitions/filesystems in a hotswap environment. I always change the LABEL= to the device designation.

satimis · 06-27-2006, 10:08 AM

Hi reddazz,

Tks for your advice.

Quote:

These key combinations have nothing to do with runlevels. They are for switching between virtual terminals when you are logged into a gui.

While working on desktop, KDE/GNOME, pressing those key combinations will switch to runlevel 1 and 3 respectively. Both are black screen. After working a while I may forget which runlevel is running. So I'm searching a way to check them when needed.

Quote:

If you use ext3, REdhat/Fedora Core, uses lables to identify partitions

Yes I'm running ext3.

B.R.
satimis

satimis · 06-27-2006, 10:10 AM

Hi Theorist,

Your advice noted with tks.

B.R.
satimis

reddazz · 06-27-2006, 11:03 AM

Quote:

While working on desktop, KDE/GNOME, pressing those key combinations will switch to runlevel 1 and 3 respectively. Both are black screen. After working a while I may forget which runlevel is running. So I'm searching a way to check them when needed.

I'm not sure I get what you mean here. As far as I know, CTRL-ALT-Fn will not switch you to a different runlvel, but it will give you access to a virtual terminal (usually a text based interface). If you then need to change runlevel, you would login to the text based interface as root and run the init command along with the number (or letter) that corresponds to the runlevel you wish to enter e.g. "init 3" to enter into runlevel 3. To check which runlevel you are in, you would run "who -r".

satimis · 06-27-2006, 11:11 AM

Hi folks,

A further question, how to start "init 1"?

On Konsole type
# init 1

it prompted a black screen with following line displayed

Code:

sh-3.1# audit (1151423691.092:6):
avc : denied {signal} for pid=1418
comm="pppd" scontext=sys-u:system_r:pppd_t:s0 tcontext=
system_u:system_r:pppd_t:s0 tclass=procs
-

Hit [Enter] it promted
sh-3.1#

Is there another way to start "init 1" while working on gui. TIA

B.R.
satimis

reddazz · 06-27-2006, 11:25 AM

If you ran "init 1" and you got the root prompt, then you are already in runlevel 1. The message on the screen is just telling you that there is a problem somewhere (I think the message you are getting is from selinux).

satimis · 06-27-2006, 07:11 PM

Hi reddazz,

Your advice noted with tks.

I was worrying about the message therefore I hit Ctrl+Alt+F2 tying to start 1. I was prepared moving /home partiton and needed to umount it on 1. I was not confident on the key-combinations on my first posting which is 1 or 3. Therefore I tried finding a method to check them. That is the whole story.

B.R.
satimis