Bug 244539 - does not boot when / is md0
Summary: does not boot when / is md0
Alias: None
Product: Fedora
Classification: Fedora
Component: mkinitrd   
(Show other bugs)
Version: 7
Hardware: All Linux
Target Milestone: ---
Assignee: Peter Jones
QA Contact:
Depends On:
TreeView+ depends on / blocked
Reported: 2007-06-16 23:09 UTC by Nerijus Baliūnas
Modified: 2008-06-17 01:37 UTC (History)
3 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of:
Last Closed: 2008-06-17 01:37:31 UTC
Type: ---
Regression: ---
Mount Type: ---
Documentation: ---
Verified Versions:
Category: ---
oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---

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Description Nerijus Baliūnas 2007-06-16 23:09:33 UTC
When using mkinitrd-6.0.9-5 or mkinitrd-6.0.9-7.1 incorrect initrd is generated
and OS does not boot:
sda, sdb disks and partitions are detected
Waiting for driver initialization.
mdadm: /dev/md0 not identified in config file.
Trying to resume from /dev/sda2
No supend signature on swap, not resuming.
Creating root device.
Mounting root filesystem.
mount: could not find filesystem '/dev/root'

If I downgrade to mkinitrd- from FC6 updates and recreate initrd,
system does boot:
sda, sdb disks and partitions are detected
md: Autodetecting RAID arrays.
md0 (and other mdx) is detected and system mounts root filesystem.

My system is yum upgraded from FC6, /etc/fstab:
/dev/md0         /              ext3    .....

kernel (hd0,0)/boot/vmlinuz-2.6.21-1.3228.fc7 ro root=/dev/md0

As you see I do not use labels.

I do not have /etc/mdadm.conf file, but all previous Fedora versions which use
mdadm instead of raidtools booted successfully.

Comment 1 Alan Cox 2007-10-09 20:23:04 UTC
Does the patch suggested in bug #241949 help here ?

Comment 2 Nerijus Baliūnas 2007-10-09 20:39:05 UTC
The patch is:
--- /sbin/mkinitrd.old  2007-08-13 06:10:50.000000000 +0100
+++ /sbin/mkinitrd      2007-08-13 08:43:11.000000000 +0100
@@ -1020,7 +1020,11 @@
                   | sed -e 's,.*/\([^/]\+\)/dev,\1,' )
             if [ -n "$dev" ]; then
                 vecho "Found root device $dev for $rootdev"
-                rootdev=$dev
+                mapper=$(lvdisplay -c | grep "$majmin")
+                if [ $? = 0 ]; then
+                    rootdev=$(echo "$mapper" | cut -d':' -f1)
+                else rootdev=$dev
+                fi

AFAIK it changes only how mkinitrd deals with LVM, but not mdadm.

Comment 3 Bug Zapper 2008-05-14 13:08:40 UTC
This message is a reminder that Fedora 7 is nearing the end of life. Approximately 30 (thirty) days from now Fedora will stop maintaining and issuing updates for Fedora 7. It is Fedora's policy to close all bug reports from releases that are no longer maintained. At that time this bug will be closed as WONTFIX if it remains open with a Fedora 'version' of '7'.

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Comment 4 Bug Zapper 2008-06-17 01:37:29 UTC
Fedora 7 changed to end-of-life (EOL) status on June 13, 2008. 
Fedora 7 is no longer maintained, which means that it will not 
receive any further security or bug fix updates. As a result we 
are closing this bug. 

If you can reproduce this bug against a currently maintained version 
of Fedora please feel free to reopen this bug against that version.

Thank you for reporting this bug and we are sorry it could not be fixed.

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