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
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1432926434.4733.1.camel@gmail.com \
--to=osamarin68@gmail.com \
--cc=linux-raid@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).