Bug 433677 - nfsroot: mkinitrd causes init scripts to fail and hang the system on reboot
nfsroot: mkinitrd causes init scripts to fail and hang the system on reboot
Product: Fedora
Classification: Fedora
Component: mkinitrd (Show other bugs)
other All
low Severity medium
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Assigned To: Peter Jones
Fedora Extras Quality Assurance
Depends On:
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Reported: 2008-02-20 14:56 EST by IBM Bug Proxy
Modified: 2009-01-09 01:02 EST (History)
3 users (show)

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Doc Type: Bug Fix
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Last Closed: 2009-01-09 01:02:05 EST
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Tracker ID Priority Status Summary Last Updated
IBM Linux Technology Center 42533 None None None Never

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Description IBM Bug Proxy 2008-02-20 14:56:32 EST
=Comment: #0=================================================
Jochen Roth <jroth@de.ibm.com> - 2008-02-20 03:56 EDT
I sent two emails to Peter Jones and I haven't received any answer right now.

For nfsroot on our diskless Cell based blades we have to create a initrd with
nfsroot support. To get the dhcp root-path option working we have to add "dhcp"
to the list of mount options for the root filesystem to create an appropriate
initial ramdisk.

Example:    /    nfs   tcp,nolock 1 1
to    /    nfs   tcp,nolock,dhcp 1 1

Setting the mount option "dhcp" in /etc/fstab causes the network script to fail
as "dhcp" isn't a supported mount option. 

Remounting root filesystem in read-write mode:  Unsupported nfs mount option:
dhcp [FAILED]

And as a consequence /etc/mtab doesn't contain the mounted root filesystem. The
reboot will then fail as it tries to shutdown the network interface on an NFS
root filesystem! 

One workaround is to create a separate fstab with "dhcp" mount option. Then we
pass this fstab as an argument to mkinitrd like: mkinitrd --fstab=myfstab ...

Another workaround would have been to pass the option by using --rootopts . This
isn't possible because of this bug:
Comment 1 IBM Bug Proxy 2008-02-20 15:16:27 EST
------- Comment From joseferr@br.ibm.com 2008-02-20 15:08 EDT-------
Our intent with this bug is to find a better solution on how dhcp root-option
and mkinitrd work.

mkinitrd will check /etc/fstab, in order to identify the special needs of a NFS
root mount. But, letting the "dhcp" option in that file will create an
incompactibility with mount and the network scripts. And, IMHO, isn't the
appropriate place for it to be.

Maybe, a better approach would be to use an extra argument to mkinitrd?

Thank you,

Jose Ferreira.
Comment 2 Bug Zapper 2008-11-26 04:53:17 EST
This message is a reminder that Fedora 8 is nearing its end of life.
Approximately 30 (thirty) days from now Fedora will stop maintaining
and issuing updates for Fedora 8.  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 '8'.

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Comment 3 Bug Zapper 2009-01-09 01:02:05 EST
Fedora 8 changed to end-of-life (EOL) status on 2009-01-07. Fedora 8 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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