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-   -   Accessing Devices from Inside VPS i need help! (http://www.howtoforge.com/forums/showthread.php?t=34657)

swap-as 7th May 2009 13:02

Accessing Devices from Inside VPS i need help!
 
DEBIAN-5 HN:

SERVER:~# ls -l /dev/sdb{,1,2,3,4}
brw-rw---- 1 root disk 8, 16 2009-05-07 16:18 /dev/sdb
brw-rw---- 1 root disk 8, 17 2009-05-07 16:18 /dev/sdb1
brw-rw---- 1 root disk 8, 18 2009-05-07 16:18 /dev/sdb2
brw-rw---- 1 root disk 8, 19 2009-05-07 16:18 /dev/sdb3
brw-rw---- 1 root disk 8, 20 2009-05-07 16:18 /dev/sdb4
SERVER:~#
SERVER:~# vzctl set 204 --devices b:8:16:rw --devices b:8:20:rw --save
SERVER:~# vzctl restart 204

then in VPS i can't see sdb4 devices:

root@vps4:/# ls -l /dev/
total 0
crw-rw---- 1 root video 10, 175 Dec 24 17:07 agpgart
crw-rw---- 1 root audio 14, 4 Dec 24 17:07 audio
crw-rw---- 1 root audio 14, 20 Dec 24 17:07 audio1
crw-rw---- 1 root audio 14, 36 Dec 24 17:07 audio2
crw-rw---- 1 root audio 14, 52 Dec 24 17:07 audio3
crw-rw---- 1 root audio 14, 7 Dec 24 17:07 audioctl
crw------- 1 root tty 5, 1 Dec 24 17:07 console
lrwxrwxrwx 1 root root 11 May 7 09:24 core -> /proc/kcore
crw-rw---- 1 root audio 14, 3 Dec 24 17:07 dsp
crw-rw---- 1 root audio 14, 19 Dec 24 17:07 dsp1
crw-rw---- 1 root audio 14, 35 Dec 24 17:07 dsp2
crw-rw---- 1 root audio 14, 51 Dec 24 17:07 dsp3
lrwxrwxrwx 1 root root 13 May 7 09:24 fd -> /proc/self/fd
crw-rw-rw- 1 root root 1, 7 Dec 24 17:07 full
prw------- 1 root root 0 May 7 13:17 initctl
crw-r----- 1 root kmem 1, 2 Dec 24 17:07 kmem
srw-rw-rw- 1 root root 0 May 7 13:18 log
brw-rw---- 1 root disk 7, 0 Dec 24 17:07 loop0
brw-rw---- 1 root disk 7, 1 Dec 24 17:07 loop1
brw-rw---- 1 root disk 7, 2 Dec 24 17:07 loop2
brw-rw---- 1 root disk 7, 3 Dec 24 17:07 loop3
brw-rw---- 1 root disk 7, 4 Dec 24 17:07 loop4
brw-rw---- 1 root disk 7, 5 Dec 24 17:07 loop5
brw-rw---- 1 root disk 7, 6 Dec 24 17:07 loop6
brw-rw---- 1 root disk 7, 7 Dec 24 17:07 loop7
crw-r----- 1 root kmem 1, 1 Dec 24 17:07 mem
crw-rw---- 1 root audio 35, 0 Dec 24 17:07 midi0
crw-rw---- 1 root audio 14, 2 Dec 24 17:07 midi00
crw-rw---- 1 root audio 14, 18 Dec 24 17:07 midi01
crw-rw---- 1 root audio 14, 34 Dec 24 17:07 midi02
crw-rw---- 1 root audio 14, 50 Dec 24 17:07 midi03
crw-rw---- 1 root audio 35, 1 Dec 24 17:07 midi1
crw-rw---- 1 root audio 35, 2 Dec 24 17:07 midi2
crw-rw---- 1 root audio 35, 3 Dec 24 17:07 midi3
crw-rw---- 1 root audio 14, 0 Dec 24 17:07 mixer
crw-rw---- 1 root audio 14, 16 Dec 24 17:07 mixer1
crw-rw---- 1 root audio 14, 32 Dec 24 17:07 mixer2
crw-rw---- 1 root audio 14, 48 Dec 24 17:07 mixer3
crw-rw---- 1 root audio 31, 0 Dec 24 17:07 mpu401data
crw-rw---- 1 root audio 31, 1 Dec 24 17:07 mpu401stat
crw-rw-rw- 1 root root 1, 3 Dec 24 17:07 null
crw-r----- 1 root kmem 1, 4 Dec 24 17:07 port
crw-rw-rw- 1 root tty 5, 2 May 7 13:59 ptmx
drwxr-xr-x 2 root root 0 May 7 13:18 pts
lrwxrwxrwx 1 root root 4 May 7 09:24 ram -> ram1
brw-rw---- 1 root disk 1, 0 Dec 24 17:07 ram0
brw-rw---- 1 root disk 1, 1 Dec 24 17:07 ram1
brw-rw---- 1 root disk 1, 10 Dec 24 17:07 ram10
brw-rw---- 1 root disk 1, 11 Dec 24 17:07 ram11
brw-rw---- 1 root disk 1, 12 Dec 24 17:07 ram12
brw-rw---- 1 root disk 1, 13 Dec 24 17:07 ram13
brw-rw---- 1 root disk 1, 14 Dec 24 17:07 ram14
brw-rw---- 1 root disk 1, 15 Dec 24 17:07 ram15
brw-rw---- 1 root disk 1, 16 Dec 24 17:07 ram16
brw-rw---- 1 root disk 1, 2 Dec 24 17:07 ram2
brw-rw---- 1 root disk 1, 3 Dec 24 17:07 ram3
brw-rw---- 1 root disk 1, 4 Dec 24 17:07 ram4
brw-rw---- 1 root disk 1, 5 Dec 24 17:07 ram5
brw-rw---- 1 root disk 1, 6 Dec 24 17:07 ram6
brw-rw---- 1 root disk 1, 7 Dec 24 17:07 ram7
brw-rw---- 1 root disk 1, 8 Dec 24 17:07 ram8
brw-rw---- 1 root disk 1, 9 Dec 24 17:07 ram9
crw-rw-rw- 1 root root 1, 8 Dec 24 17:07 random
crw-rw---- 1 root audio 35, 64 Dec 24 17:07 rmidi0
crw-rw---- 1 root audio 35, 65 Dec 24 17:07 rmidi1
crw-rw---- 1 root audio 35, 66 Dec 24 17:07 rmidi2
crw-rw---- 1 root audio 35, 67 Dec 24 17:07 rmidi3
crw-rw---- 1 root audio 14, 1 Dec 24 17:07 sequencer
drwxrwxrwt 2 root root 40 May 7 13:18 shm
crw-rw---- 1 root audio 35, 128 Dec 24 17:07 smpte0
crw-rw---- 1 root audio 35, 129 Dec 24 17:07 smpte1
crw-rw---- 1 root audio 35, 130 Dec 24 17:07 smpte2
crw-rw---- 1 root audio 35, 131 Dec 24 17:07 smpte3
crw-rw---- 1 root audio 14, 6 Dec 24 17:07 sndstat
lrwxrwxrwx 1 root root 4 May 7 09:24 stderr -> fd/2
lrwxrwxrwx 1 root root 4 May 7 09:24 stdin -> fd/0
lrwxrwxrwx 1 root root 4 May 7 09:24 stdout -> fd/1
crw-rw-rw- 1 root tty 5, 0 Dec 24 17:07 tty
crw------- 1 root tty 4, 0 Dec 24 17:07 tty0
crw------- 1 root tty 4, 1 Dec 24 17:07 tty1
crw------- 1 root tty 4, 2 Dec 24 17:07 tty2
crw------- 1 root tty 4, 3 Dec 24 17:07 tty3
crw------- 1 root tty 4, 4 Dec 24 17:07 tty4
crw------- 1 root tty 4, 5 Dec 24 17:07 tty5
crw------- 1 root tty 4, 6 Dec 24 17:07 tty6
crw------- 1 root tty 4, 7 Dec 24 17:07 tty7
crw------- 1 root tty 4, 8 Dec 24 17:07 tty8
crw------- 1 root tty 4, 9 Dec 24 17:07 tty9
crw-rw-rw- 1 root root 1, 9 Dec 24 17:07 urandom
prw-r----- 1 root adm 0 May 7 13:36 xconsole
crw-rw-rw- 1 root root 1, 5 Dec 24 17:07 zero

Help Help Help

falko 8th May 2009 01:04

You cannot access the hardware from inside the virtual machine.

swap-as 8th May 2009 14:45

Quote:

Originally Posted by falko (Post 186925)
You cannot access the hardware from inside the virtual machine.

Thank you for your answer.
I found the way to solve this problem. I forgot to write those commands:


SERVER:~#vzctl set 204 --devnodes sda4:rw --save
SERVER:~#vzctl set 204 --devnodes sdb4:rw --save
SERVER:~#vzctl restart 204



Then I started VPS and wrote this command:

root@vps4:~# ls -l /dev/sda4
brw-r----- 1 root root 8, 4 May 8 09:14 /dev/sda4
root@vps4:~# ls -l /dev/sdb4
brw-r----- 1 root root 8, 20 May 8 00:46 /dev/sdb4

root@vps4:~# mount /dev/sda4 /home
root@vps4:~# mount /dev/sdb4 /backup
root@vps4:~#nano /etc/fstab

# UNCONFIGURED FSTAB FOR BASE SYSTEM
/dev/sda4 /home ext3 defaults 0 2
/dev/sdb4 /backup ext3 defaults 0 2

after VPS restarting

SERVER:~#vzctl restart 204

It works OK.

Thank you for your answer to my message anyway.


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