Bug 2136062

Summary: hostonly="no" don't add mdadm.conf
Product: [Fedora] Fedora Reporter: Harald Reindl <h.reindl>
Component: dracutAssignee: dracut-maint-list
Status: CLOSED EOL QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: unspecified Docs Contact:
Priority: unspecified    
Version: 36CC: dracut-maint-list, jamacku, jonathan, laszlo.gombos, lnykryn, pvalena
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Last Closed: 2023-05-25 15:56:10 UTC Type: Bug
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Description Harald Reindl 2022-10-19 09:07:00 UTC
recently i migrated systems with rootfs on RAID10 to RAID1 and for safety reasons i switched to hostonly="no" and executed "dracut -f" to have the new mdadm.conf with the new RAID-UUIDs in the initrd before reboot to a live-cd for the dd-sync of the RAID contents

what should i say: the initrd didn't contain "mdadm.conf" and "lsinitrd" confirmed that

after hours to get the system started at all again i switched back to hostly=yes, "dracut -f", voila "lsinitrd" confirmed "mdadm.conf" is there again and after a reboot my arrays where called md0/md1 instead of "md126/md127"

i can see no logic here given that a non-hostonly initrd is desired when you switch hardware and also i don't understand how it's decided at all when the initrd contains mdadm

on a test-vm with a RAID not containing system/boot it's not there in any case

[root@testserver:~]$ lsinitrd | grep mdadm
[root@testserver:~]$ cat /proc/mdstat
Personalities : [raid10]
md0 : active raid10 sdf1[5] sde1[4] sdd[7] sdc[6]
      2072576 blocks super 1.2 256K chunks 2 near-copies [4/4] [UUUU]

Comment 1 Ben Cotton 2023-04-25 18:05:59 UTC
This message is a reminder that Fedora Linux 36 is nearing its end of life.
Fedora will stop maintaining and issuing updates for Fedora Linux 36 on 2023-05-16.
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Comment 2 Laszlo 2023-05-10 03:43:05 UTC
This is expected. Not a bug - see https://github.com/dracutdevs/dracut/blob/master/modules.d/90mdraid/module-setup.sh#L100

non-hostly by default is not expected to pick up host specific configuration files. If you know what you want you can add files on the dracut command line.

I suggest to close this bug or perhaps suggest how can the dracut project improve documentation to explain this better.

Comment 3 Harald Reindl 2023-05-10 06:39:13 UTC
it is NOT expected - BEFORE hostonly became the default all my machines had md01/md1 and not md127/md128 and the point where you siwtch to nion-hostonly is before you move your disks to a new machine

Comment 4 Harald Reindl 2023-05-10 06:43:39 UTC
BTW: i found that file on one of two machines hundrets of kilometers away installed 2012 which SUDDENLY switched years ago from md0/md1 to md127/md128

[root@srv-rhsoft:~]$ cat /etc/dracut.conf.d/92-mdadm.conf
mdadmconf="yes"

Comment 5 Ludek Smid 2023-05-25 15:56:10 UTC
Fedora Linux 36 entered end-of-life (EOL) status on 2023-05-16.

Fedora Linux 36 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.

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