Bug 92148

Summary:	/dev/sg, /dev/st entries don't match reality
Product:	[Retired] Red Hat Linux	Reporter:	Terry Lemons <tlemons>
Component:	kudzu	Assignee:	Bill Nottingham <notting>
Status:	CLOSED NOTABUG	QA Contact:	David Lawrence <dkl>
Severity:	medium	Docs Contact:
Priority:	medium
Version:	7.3	CC:	rvokal
Target Milestone:	---
Target Release:	---
Hardware:	i586
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2003-06-10 14:24:44 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description Terry Lemons 2003-06-03 12:33:40 UTC

Hi

I have a system where the entries in /dev/sg and /dev/st are not in sync.  I'm 
not sure how this happened (any ideas), and don't know how to fix it.  I sent 
searching in Bugzilla and the documentation, and didn't find any information 
that seemed helpful to me.

[root@versan3 root]# ls -l /dev/sg
total 0
lrwxrwxrwx    1 root     root            8 May 30 12:13 h0c0t0l0 -> /dev/sg0
lrwxrwxrwx    1 root     root            8 May 30 12:13 h0c0t6l0 -> /dev/sg1
lrwxrwxrwx    1 root     root            8 May 30 12:13 h4c0t1l0 -> /dev/sg3
lrwxrwxrwx    1 root     root            8 May 30 12:13 h4c0t1l1 -> /dev/sg4
lrwxrwxrwx    1 root     root            8 May 30 12:13 h4c0t1l2 -> /dev/sg5
lrwxrwxrwx    1 root     root            8 May 30 12:13 h4c0t1l3 -> /dev/sg6
lrwxrwxrwx    1 root     root            8 May 30 12:13 h4c0t1l4 -> /dev/sg7
lrwxrwxrwx    1 root     root            8 May 30 12:13 h4c0t1l5 -> /dev/sg8
lrwxrwxrwx    1 root     root            8 May 30 12:13 h4c0t1l6 -> /dev/sg9
lrwxrwxrwx    1 root     root            9 May 30 12:13 h4c0t1l7 -> /dev/sg10
lrwxrwxrwx    1 root     root            9 May 30 12:13 h4c0t1l8 -> /dev/sg11
lrwxrwxrwx    1 root     root            9 May 30 12:13 h4c0t2l0 -> /dev/sg12
lrwxrwxrwx    1 root     root            9 May 30 12:13 h4c0t2l1 -> /dev/sg13
lrwxrwxrwx    1 root     root            9 May 30 12:13 h4c0t2l2 -> /dev/sg14
lrwxrwxrwx    1 root     root            9 May 30 12:13 h4c0t2l3 -> /dev/sg15
[root@versan3 root]# ls -l /dev/st
total 0
lrwxrwxrwx    1 root     root            8 May 30 12:13 h4c0t1l1 -> /dev/st0
lrwxrwxrwx    1 root     root            8 May 30 12:14 h4c0t1l2 -> /dev/st1
lrwxrwxrwx    1 root     root            8 May 30 12:15 h4c0t1l3 -> /dev/st2
lrwxrwxrwx    1 root     root            8 May 30 12:16 h4c0t1l4 -> /dev/st3
lrwxrwxrwx    1 root     root            8 May 30 12:16 h4c0t1l5 -> /dev/st4
lrwxrwxrwx    1 root     root            8 May 30 12:16 h4c0t1l6 -> /dev/st5
lrwxrwxrwx    1 root     root            8 May 30 12:16 h4c0t1l7 -> /dev/st6
lrwxrwxrwx    1 root     root            8 May 30 12:16 h4c0t1l8 -> /dev/st7
lrwxrwxrwx    1 root     root            8 May 30 12:16 h4c0t2l1 -> /dev/st8
lrwxrwxrwx    1 root     root            8 May 30 12:16 h4c0t2l2 -> /dev/st9
lrwxrwxrwx    1 root     root            9 May 30 12:14 h4c0t2l3 -> /dev/st10
lrwxrwxrwx    1 root     root            9 May 30 12:14 h4c0t2l4 -> /dev/st11
lrwxrwxrwx    1 root     root            9 May 30 12:14 h4c0t2l5 -> /dev/st12
lrwxrwxrwx    1 root     root            9 May 30 12:14 h4c0t2l6 -> /dev/st13
lrwxrwxrwx    1 root     root            9 May 30 12:14 h4c0t2l7 -> /dev/st14
lrwxrwxrwx    1 root     root            9 May 30 12:14 h4c0t3l2 -> /dev/st15
lrwxrwxrwx    1 root     root            9 May 30 12:14 h4c0t3l3 -> /dev/st16
lrwxrwxrwx    1 root     root            9 May 30 12:15 h4c0t3l4 -> /dev/st17
lrwxrwxrwx    1 root     root            9 May 30 12:15 h4c0t3l5 -> /dev/st18
lrwxrwxrwx    1 root     root            9 May 30 12:15 h4c0t3l6 -> /dev/st19
lrwxrwxrwx    1 root     root            9 May 30 12:15 h4c0t3l7 -> /dev/st20
lrwxrwxrwx    1 root     root            9 May 30 12:15 h4c0t3l8 -> /dev/st21
lrwxrwxrwx    1 root     root            9 May 30 12:15 h4c0t3l9 -> /dev/st22
lrwxrwxrwx    1 root     root            9 May 30 12:03 nh4c0t1l1 -> /dev/nst0
lrwxrwxrwx    1 root     root            9 May 30 12:03 nh4c0t1l2 -> /dev/nst1
lrwxrwxrwx    1 root     root            9 May 30 12:12 nh4c0t1l3 -> /dev/nst2
lrwxrwxrwx    1 root     root            9 May 30 12:13 nh4c0t1l4 -> /dev/nst3
lrwxrwxrwx    1 root     root            9 May 30 12:13 nh4c0t1l5 -> /dev/nst4
lrwxrwxrwx    1 root     root            9 May 30 12:13 nh4c0t1l6 -> /dev/nst5
lrwxrwxrwx    1 root     root            9 May 30 12:13 nh4c0t1l7 -> /dev/nst6
lrwxrwxrwx    1 root     root            9 May 30 12:13 nh4c0t1l8 -> /dev/nst7
lrwxrwxrwx    1 root     root            9 May 30 12:13 nh4c0t2l1 -> /dev/nst8
lrwxrwxrwx    1 root     root            9 May 30 12:13 nh4c0t2l2 -> /dev/nst9
lrwxrwxrwx    1 root     root           10 May 30 12:03 nh4c0t2l3 -> /dev/nst10
lrwxrwxrwx    1 root     root           10 May 30 12:03 nh4c0t2l4 -> /dev/nst11
lrwxrwxrwx    1 root     root           10 May 30 12:03 nh4c0t2l5 -> /dev/nst12
lrwxrwxrwx    1 root     root           10 May 30 12:04 nh4c0t2l6 -> /dev/nst13
lrwxrwxrwx    1 root     root           10 May 30 12:11 nh4c0t2l7 -> /dev/nst14
lrwxrwxrwx    1 root     root           10 May 30 12:11 nh4c0t3l2 -> /dev/nst15
lrwxrwxrwx    1 root     root           10 May 30 12:11 nh4c0t3l3 -> /dev/nst16
lrwxrwxrwx    1 root     root           10 May 30 12:11 nh4c0t3l4 -> /dev/nst17
lrwxrwxrwx    1 root     root           10 May 30 12:12 nh4c0t3l5 -> /dev/nst18
lrwxrwxrwx    1 root     root           10 May 30 12:12 nh4c0t3l6 -> /dev/nst19
lrwxrwxrwx    1 root     root           10 May 30 12:12 nh4c0t3l7 -> /dev/nst20
lrwxrwxrwx    1 root     root           10 May 30 12:12 nh4c0t3l8 -> /dev/nst21
lrwxrwxrwx    1 root     root           10 May 30 12:12 nh4c0t3l9 -> /dev/nst22
[root@versan3 root]# 

How can I correct this problem?

Thanks
tl

Comment 1 Bill Nottingham 2003-06-03 15:22:03 UTC

Are you using devfs?

Comment 2 Terry Lemons 2003-06-03 16:17:43 UTC

Sorry for the stupid question, but am I using devfs for what?  I haven't used 
that command, if that's what you mean.

Thanks!
tl

Comment 3 Bill Nottingham 2003-06-03 16:36:31 UTC

Have you rebuilt a kernel with devfs support, or installed a kernel that uses devfs?

Comment 4 Terry Lemons 2003-06-03 18:39:59 UTC

No and no; it is disabled (it's commented in the .config file).

Comment 5 Bill Nottingham 2003-06-03 18:56:53 UTC

/dev/sg is a directory on your system?

Comment 6 Terry Lemons 2003-06-03 19:14:11 UTC

Yep.

Comment 7 Bill Nottingham 2003-06-03 19:18:11 UTC

Hm, that's odd. We don't ship /dev/sg as a directory, and we don't ship anything
that would make such symlinks.

What kernel are you running?

Comment 8 Terry Lemons 2003-06-03 19:21:27 UTC

[root@versan3 nsr]# uname -a
Linux versan3.backup 2.4.18-3custom #1 SMP Wed Nov 6 14:57:02 EST 2002 i686 unkn
own
[root@versan3 nsr]# cat /etc/redhat-release
Red Hat Linux release 7.3 (Valhalla)
[root@versan3 nsr]#

Comment 9 Bill Nottingham 2003-06-03 19:26:50 UTC

Hm, I'm not sure what you'd have that would create those directories and
entries. Are you seeing anything else odd besides those?

Comment 10 Terry Lemons 2003-06-10 14:24:44 UTC

Hi

New, incomplete information points to backup software creating and populating 
those directories.  So, thanks for this discussion, and please close this case.

Thanks again!
tl