From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: <3800FBAE.A74F9163@msede.com> Date: Sun, 10 Oct 1999 22:48:46 +0200 From: Michael Marxmeier MIME-Version: 1.0 Subject: Re: [linux-lvm] Can't see /dev/hdk1 References: Content-Transfer-Encoding: 7bit Sender: owner-linux-lvm Errors-To: owner-linux-lvm List-Id: Content-Type: text/plain; charset="us-ascii" To: Bruce Hewitson Cc: Heinz Mauelshagen , linux-lvm@msede.com Hi Bruce. > There is no physical hdj* device, as I have kept the disks to one per IDE > channel. (By the way, if it helps, all drives work fine as stand alone > ext2fs devices, and under md raid). And that triggers a bug in pv_read_all_pv(). To opmize scan time for the cluttered /dev directory, pv_read_all_pv() tries to skip all partitions for devices which don't exist. Hover it's done in a wrong way ... As a quick fix, have a look at lib/pv_read_all_pv.c and modify it as below. The current code tries to skip partitions if the device does not exist. However it blindly skips over the next 15 devices it has found in /dev. The code should look like: if ( ( tst = open ( dev_name, O_RDONLY)) == -1) { continue; #if 0 if ( MAJOR ( dir_cache[n].st_rdev) != MD_MAJOR && MINOR ( dir_cache[n].st_rdev) % 16 == 0) { n += 15; continue; } #endif } else close ( tst); Does this fix your problem? The correct solution would be to order the dir_cache in major/minor order and skip based on major/minor. Hope this helps Michael -- Michael Marxmeier Marxmeier Software AG E-Mail: mike@msede.com Besenbruchstrasse 9 Phone : +49 202 2431440 42285 Wuppertal, Germany Fax : +49 202 2431420 http://www.msede.com/