Public bug reported:
I have a DHCP/TFTP server that's used for network installations. When I
tried to switch it to use the version of PXELINUX supplied with Ubuntu
16.04 (3:6.03+dfsg-11ubuntu1), I found that whatever I typed at the
PXELINUX command-line, PXELINUX would boot the default image. Replacing
the Ubuntu PXELINUX binaries with the official upstream binaries caused
the problem to go away.
More specifically, I installed /usr/lib/PXELINUX/pxelinux.0 and
/usr/lib/syslinux/modules/bios/ldlinux.c32 into my /tftpboot directory.
To avoid breaking the existing PXELINUX 4.03 installation, I installed
pxelinux.0 as "test.0" and configured my DHCP server to provide that as
a filename to my test server. I put the following configuration file in
/tftpboot/pxelinux.cfg/AC1CD020 (the correct name for the IP address of
my server):
DEFAULT mongoose
PROMPT 1
LABEL mongoose
KERNEL mongoose
LABEL kitten
KERNEL kitten
When I boot my test server, pressing [TAB] twice at the PXELINUX prompt
lists both "mongoose" and "kitten" as available images, but whatever I
type, PXELINUX says "Loading mongoose... failed: No such file or
directory" (see attached screenshot), indicating that PXELINUX was
trying to load "mongoose" every time. When I replace test.0 and
ldlinux.c32 with pxelinux.0 and ldlinux.c32 from the official PXELINUX
6.03 release, I get the behaviour I expect, namely that the error
message mentions the name of the image I selected.
While my test involves images that don't exist, I get the same behaviour
for more normal configuration files that load actual kernels. I also
get the same behaviour from two different PXE implementations (VMware
and a Sun Fire X4150).
ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: pxelinux 3:6.03+dfsg-11ubuntu1
ProcVersionSignature: Ubuntu 4.4.0-77.98-generic 4.4.59
Uname: Linux 4.4.0-77-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.5
Architecture: amd64
Date: Tue May 16 18:37:49 2017
Dependencies: syslinux-common 3:6.03+dfsg-11ubuntu1
JournalErrors:
Error: command ['journalctl', '-b', '--priority=warning', '--lines=1000']
failed with exit code 1: Hint: You are currently not seeing messages from other
users and the system.
Users in the 'systemd-journal' group can see all messages. Pass -q to
turn off this notice.
No journal files were opened due to insufficient permissions.
PackageArchitecture: all
SourcePackage: syslinux
UpgradeStatus: Upgraded to xenial on 2017-05-11 (5 days ago)
** Affects: syslinux (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug xenial
** Attachment added: "Console screenshot demonstrating problem"
https://bugs.launchpad.net/bugs/1691218/+attachment/4877699/+files/index.png
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https://bugs.launchpad.net/bugs/1691218
Title:
PXELINUX always selects default option
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