How can I debug NO ASM disk issue when installing grid infrastructure 11.2.0.2?

Before I open an SR on MOS, I think I should post to this mailing list.

I'm installing 11.2.0.2 grid infrastructure on 2-nodes Egenera Blade which hostname is rac1 and rac2.

ASMlib was installed and configured correctly on both nodes. Installation is running on rac1 node.

[root_at_rac1 disks]# uname -a

Linux rac1 2.6.18-194.el5 #1 SMP Tue Mar 16 21:52:39 EDT 2010 x86_64 x86_64 x86_64 GNU/Linux

[root_at_rac1 disks]# ls -l /dev/oracleasm/disks/
total 0

brw-rw---- 1 grid dba 8, 17 Nov 23 20:41 VOL1
brw-rw---- 1 grid dba 8, 18 Nov 23 20:41 VOL2
brw-rw---- 1 grid dba 8, 19 Nov 23 20:41 VOL3

brw-r----- 1 root disk 8, 16 Nov 23 20:40 /dev/sdb
brw-r----- 1 root disk 8, 17 Nov 23 20:41 /dev/sdb1
brw-r----- 1 root disk 8, 18 Nov 23 20:41 /dev/sdb2
brw-r----- 1 root disk 8, 19 Nov 23 20:41 /dev/sdb3

I plan to use ASM to storage OCR, but OUI can't find any candidate disks, I tried to set ASM_DISKSTRING=ORCL:VOL*, but have no luck.

My question is:
1. How can I debug why OUI can't find any disk? There is no $GRID_HOME created yet, no oraInventory directory yet, no cfgtoollogs directory yet.
2. Is there anyone has experience for Oracle RAC 11gR2 on Egenera Blade machine?

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Kamus <kamusis_at_gmail.com>

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