Your message dated Thu, 20 Aug 2015 14:06:14 +0000
with message-id <[email protected]>
and subject line Bug#780765: fixed in syslinux 3:6.03+dfsg-5+deb8u1
has caused the Debian Bug report #780765,
regarding syslinux fixes for Chromebooks
to be marked as done.
This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.
(NB: If you are a system administrator and have no idea what this
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misconfiguration somewhere. Please contact [email protected]
immediately.)
--
780765: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=780765
Debian Bug Tracking System
Contact [email protected] with problems
--- Begin Message ---
Package: syslinux
Version: 3:6.03+dfsg-5
Severity: normal
Tags: patch
User: [email protected]
Usertags: origin-ubuntu vivid ubuntu-patch
Hi Daniel,
In Ubuntu, my attention was recently called to a problem with syslinux 6.03
not booting correctly on Chromebooks. To fix this problem, I've applied two
patches to the Ubuntu package taken from the upstream mailing list. You may
find it beneficial to apply these patches to the Debian package as well.
The changelog for the upload to Ubuntu is:
* debian/patches/relocatable-kernel-loads.patch: load_linux: relocate
protected-mode code as intended. Thanks to Scot Doyle
<[email protected]>. Closes LP: #1429323.
* debian/patches/load_linux-correct-type.patch: load_linux: correct a
type. Thanks to Scot Doyle <[email protected]>.
Thanks for considering the patch.
--
Steve Langasek Give me a lever long enough and a Free OS
Debian Developer to set it on, and I can move the world.
Ubuntu Developer http://www.debian.org/
[email protected] [email protected]
diff -Nru syslinux-6.03+dfsg/debian/changelog syslinux-6.03+dfsg/debian/changelog
diff -Nru syslinux-6.03+dfsg/debian/patches/load_linux-correct-type.patch syslinux-6.03+dfsg/debian/patches/load_linux-correct-type.patch
--- syslinux-6.03+dfsg/debian/patches/load_linux-correct-type.patch 1969-12-31 16:00:00.000000000 -0800
+++ syslinux-6.03+dfsg/debian/patches/load_linux-correct-type.patch 2015-03-18 16:11:07.000000000 -0700
@@ -0,0 +1,29 @@
+Author: Scot Doyle <[email protected]>
+Description: load_linux: correct a type
+ Correct base's type to match its initialization from prot_mode_base and
+ passage to syslinux_memmap_find(). Tested with extlinux.
+Signed-off-by: Scot Doyle <[email protected]>
+Forwarded: http://www.syslinux.org/archives/2015-February/023179.html
+
+---
+ com32/lib/syslinux/load_linux.c | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/com32/lib/syslinux/load_linux.c b/com32/lib/syslinux/load_linux.c
+index 06ae2a9..ac73729 100644
+--- a/com32/lib/syslinux/load_linux.c
++++ b/com32/lib/syslinux/load_linux.c
+@@ -155,8 +155,8 @@ int bios_boot_linux(void *kernel_buf, size_t kernel_size,
+ char *cmdline)
+ {
+ struct linux_header hdr, *whdr;
+- size_t real_mode_size, prot_mode_size, base;
+- addr_t real_mode_base, prot_mode_base, prot_mode_max;
++ size_t real_mode_size, prot_mode_size;
++ addr_t real_mode_base, prot_mode_base, prot_mode_max, base;
+ addr_t irf_size;
+ size_t cmdline_size, cmdline_offset;
+ struct setup_data *sdp;
+--
+2.3.0-rc2
+
diff -Nru syslinux-6.03+dfsg/debian/patches/relocatable-kernel-loads.patch syslinux-6.03+dfsg/debian/patches/relocatable-kernel-loads.patch
--- syslinux-6.03+dfsg/debian/patches/relocatable-kernel-loads.patch 1969-12-31 16:00:00.000000000 -0800
+++ syslinux-6.03+dfsg/debian/patches/relocatable-kernel-loads.patch 2015-03-18 16:10:47.000000000 -0700
@@ -0,0 +1,38 @@
+Author: Scot Doyle <[email protected]>
+Description: load_linux: relocate protected-mode code as intended
+ If the kernel is relocatable and the protected mode code will not fit
+ in the initially determined location, that code will be moved to the
+ next available location. However, beginning with commit 8f470e7b, the
+ code is moved to the initially determined location instead of the next
+ available location because prot_mode_base is no longer updated to the
+ correct location. Since whdr->code32_start is updated, it is pointing
+ to the wrong execution start location, random code is executed and
+ the machine is rebooted.
+ .
+ Restore the old behavior by assigning prot_mode_base the value of
+ base. Tested on a machine that exposed this behavior.
+Signed-off-by: Scot Doyle <[email protected]>
+Bug-Ubuntu: https://bugs.launchpad.net/bugs/1429323
+Forwarded: http://www.syslinux.org/archives/2015-February/023209.html
+
+---
+This patch may be applied in addition to "load_linux: correct a type"
+
+ com32/lib/syslinux/load_linux.c | 1 +
+ 1 file changed, 1 insertion(+)
+
+diff --git a/com32/lib/syslinux/load_linux.c b/com32/lib/syslinux/load_linux.c
+index 06ae2a9..5cecef4 100644
+--- a/com32/lib/syslinux/load_linux.c
++++ b/com32/lib/syslinux/load_linux.c
+@@ -323,6 +323,7 @@ int bios_boot_linux(void *kernel_buf, size_t kernel_size,
+ }
+
+ whdr->code32_start += base - prot_mode_base;
++ prot_mode_base = base;
+
+ /* Real mode code */
+ if (syslinux_memmap_find(amap, &real_mode_base,
+--
+2.3.0-rc2
+
diff -Nru syslinux-6.03+dfsg/debian/patches/series syslinux-6.03+dfsg/debian/patches/series
--- syslinux-6.03+dfsg/debian/patches/series 2014-12-07 11:51:56.000000000 -0800
+++ syslinux-6.03+dfsg/debian/patches/series 2015-03-18 16:09:21.000000000 -0700
@@ -2,3 +2,5 @@
0002-gfxboot-menu-label.patch
0003-extlinux-manpage.patch
0004-gnu-efi-git.patch
+relocatable-kernel-loads.patch
+load_linux-correct-type.patch
--- End Message ---
--- Begin Message ---
Source: syslinux
Source-Version: 3:6.03+dfsg-5+deb8u1
We believe that the bug you reported is fixed in the latest version of
syslinux, which is due to be installed in the Debian FTP archive.
A summary of the changes between this version and the previous one is
attached.
Thank you for reporting the bug, which will now be closed. If you
have further comments please address them to [email protected],
and the maintainer will reopen the bug report if appropriate.
Debian distribution maintenance software
pp.
intrigeri <[email protected]> (supplier of updated syslinux package)
(This message was generated automatically at their request; if you
believe that there is a problem with it please contact the archive
administrators by mailing [email protected])
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA512
Format: 1.8
Date: Wed, 19 Aug 2015 15:41:54 CEST
Source: syslinux
Binary: syslinux syslinux-efi extlinux isolinux pxelinux syslinux-common
syslinux-utils
Architecture: source all
Version: 3:6.03+dfsg-5+deb8u1
Distribution: jessie
Urgency: low
Maintainer: Daniel Baumann <[email protected]>
Changed-By: intrigeri <[email protected]>
Description:
extlinux - collection of bootloaders (Linux ext2/ext3/ext4, btrfs, and xfs b
isolinux - collection of bootloaders (ISO 9960 bootloader)
pxelinux - collection of bootloaders (PXE network bootloader)
syslinux - collection of bootloaders (DOS FAT and NTFS bootloader)
syslinux-common - collection of bootloaders (common)
syslinux-efi - collection of bootloaders (UEFI bootloader)
syslinux-utils - collection of bootloaders (utilities)
Closes: 780765
Changes:
syslinux (3:6.03+dfsg-5+deb8u1) jessie; urgency=low
.
* Cherry-pick upstream patches that fix booting on some Chromebooks
(Closes: #780765):
- 0005-load-linux-correct-type.patch
- 0006-load-linux-protected-mode.patch
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