Bug 1055720

Summary:	[ARM] supermin cannot locate dtb when using SUPERMIN_KERNEL
Product:	[Fedora] Fedora	Reporter:	Richard W.M. Jones <rjones>
Component:	supermin	Assignee:	Richard W.M. Jones <rjones>
Status:	CLOSED WONTFIX	QA Contact:	Fedora Extras Quality Assurance <extras-qa>
Severity:	unspecified	Docs Contact:
Priority:	unspecified
Version:	22	CC:	rjones
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Fixed In Version:		Doc Type:	Bug Fix
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Last Closed:	2016-06-15 12:57:57 UTC	Type:	Bug
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Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
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Embargoed:

Description Richard W.M. Jones 2014-01-20 19:53:12 UTC

Description of problem:

If you use use SUPERMIN_KERNEL to point to a kernel in /boot, eg:

export SUPERMIN_KERNEL=/boot/vmlinuz-3.11.0-301.fc20.armv7hl

then supermin hard links the kernel to the target, but subsequently
cannot work out how to locate the dtb.

The error is:

supermin-helper: using environment variable(s) SUPERMIN_* to
select kernel /boot/vmlinuz-3.11.0-301.fc20.armv7hl
supermin-helper: failed to find a dtb (device tree) directory.
I expected to take '/home/rjones/d/libguestfs/tmp/guestfs.5XNHUW/kernel'
and replace vmlinuz- with dtb- to form a directory.
You can set SUPERMIN_DTB to point to the dtb *file* that should
be used.
libguestfs: error: supermin-helper exited with error status 1, see debug messages above

The precise supermin command which libguestfs runs is:

command was:
libguestfs: command: run: supermin-helper
libguestfs: command: run: \ --verbose
libguestfs: command: run: \ --copy-kernel
libguestfs: command: run: \ -f ext2
libguestfs: command: run: \ --host-cpu armv7l
libguestfs: command: run: \ --dtb vexpress*a15-tc1.dtb
libguestfs: command: run: \ /home/rjones/d/libguestfs/appliance/supermin.d
libguestfs: command: run: \ --output-kernel /home/rjones/d/libguestfs/tmp/guestfs.5XNHUW/kernel
libguestfs: command: run: \ --output-dtb /home/rjones/d/libguestfs/tmp/guestfs.5XNHUW/dtb
libguestfs: command: run: \ --output-initrd /home/rjones/d/libguestfs/tmp/guestfs.5XNHUW/initrd
libguestfs: command: run: \ --output-appliance /home/rjones/d/libguestfs/tmp/guestfs.5XNHUW/root

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

supermin 4.1.6

Comment 1 Richard W.M. Jones 2014-01-20 19:54:19 UTC

You can work around this by setting SUPERMIN_DTB as well,
but supermin has enough information to work out how to
do this on its own.

Comment 2 Jaroslav Reznik 2015-03-03 15:24:40 UTC

This bug appears to have been reported against 'rawhide' during the Fedora 22 development cycle.
Changing version to '22'.

More information and reason for this action is here:
https://fedoraproject.org/wiki/Fedora_Program_Management/HouseKeeping/Fedora22

Comment 3 Richard W.M. Jones 2016-06-15 12:57:57 UTC

Closing since we no longer use an explicit DTB, but use the one
which is generated by QEMU.