From: Oleg Samarin <osamarin68@gmail.com>
To: linux-raid@vger.kernel.org
Subject: How does linux hide underlying disks partitions?
Date: Fri, 29 May 2015 22:07:14 +0300 [thread overview]
Message-ID: <1432926434.4733.1.camel@gmail.com> (raw)
I'm trying to evaluate a complex mdadm-lvm-udev-anaconda issue
https://bugzilla.redhat.com/show_bug.cgi?id=1226305 and to undestand
how mdadm works.
I have an intel imsm raid-1 volume /dev/md126 assembled with two
disks /dev/sda and /dev/sdb.
This volume has two partitions /dev/md126p1 and /dev/md126p2.
Because it a simple mirror, both disks have te same information.
When the normal system boots up, I can see with journalctl that
1. at first /dev/sda1, /dev/sda2, /dev/sdb1, /dev/sdb2 appear
2. then mdadm assembles /dev/md126 from /dev/sda and /dev/sdb
3. /dev/sda1, /dev/sda2, /dev/sdb1, /dev/sdb2 disappear
4. /dev/md126p1 and /dev/md126p2 coming instead
Which program component is responsible for
disappearing /dev/sda1, /dev/sda2, /dev/sdb1 and /dev/sdb2?
Why can they be left after starting anaconda installer?
next reply other threads:[~2015-05-29 19:07 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-05-29 19:07 Oleg Samarin [this message]
2015-05-29 21:14 ` How does linux hide underlying disks partitions? NeilBrown
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