Bug 232849 - Multipath devices not created in time
Multipath devices not created in time
Product: Red Hat Enterprise Linux 4
Classification: Red Hat
Component: device-mapper-multipath (Show other bugs)
All Linux
medium Severity medium
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Assigned To: Ben Marzinski
Corey Marthaler
Depends On:
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Reported: 2007-03-18 17:46 EDT by Joseph Shraibman
Modified: 2010-01-11 21:28 EST (History)
11 users (show)

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Fixed In Version:
Doc Type: Bug Fix
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Last Closed: 2009-01-12 16:17:17 EST
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Description Joseph Shraibman 2007-03-18 17:46:15 EDT
Description of problem:
When booting I get dropped into singe user mode when init reads fstab to mount
directories because the multipath entries in /dev don't exist.  Once I enter the
root password I can mount the directories because at that point the devices to

Version-Release number of selected component (if applicable):

How reproducible:
All the time

Steps to Reproduce:
Actual results:

Expected results:

Additional info:
To work around I added _netdev to the options in fstab
Comment 1 Ben Marzinski 2007-04-04 18:11:09 EDT
Which multipath entries are you using?

/dev/dm-* names are not guaranteed to be unique across reboots and should never
be used. They are also created by udev and not guaranteed to exist immediately
after device creation.

/dev/mpath/* names are unique, but are also created by udev and not guaranteed
to exist immediately after device creation. They should not be used in things
like /etc/fstab

/dev/mapper/* names are created by device-mapper, and exist immediately after
the device is created.

If you are not using /dev/mapper/* names in /etc/fstab, try switching to them
and let me know if this fixes the problem for you.
Comment 2 Joseph Shraibman 2007-04-04 21:17:58 EDT
I was using /dev/dm-*.  I can't reboot this system anytime soon just to test if
the /dev/mapper entries work.
Comment 3 Ben Marzinski 2007-05-31 20:29:55 EDT
Please let me know if this fixed the problem.
Comment 4 Joseph Shraibman 2007-05-31 21:47:33 EDT
I'm sorry, this system might not be rebooted for months.

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