Your message dated Sat, 09 Dec 2017 10:47:53 +0000
with message-id <1512816473.1994.32.ca...@adam-barratt.org.uk>
and subject line Closing bugs for updates included in jessie point release
has caused the Debian Bug report #880123,
regarding jessie-pu: package syslinux/3:6.03+dfsg-5+deb8u1
to be marked as done.
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880123: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=880123
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--- Begin Message ---
Package: release.debian.org
User: release.debian....@packages.debian.org
Usertags: pu
Tags: jessie
Severity: normal
X-Debbugs-CC: debian...@lists.debian.org, debian-b...@lists.debian.org,
k...@debian.org
Dear release team,
I hereby ask for permission to update the syslinux package in jessie as
well. The update fixes a bug in the isolinux isohybrid MBR causing boot
failures with some old BIOS [1].
The bug is already fixed in unstable/testing and the update for stretch,
which also includes this fix, has just been approved [2].
I tested the build in an sbuild jessie chroot and the updated package
builds the correct isohdpfx.bin file (identical to the one currently in
unstable/testing). The debdiff is attached.
Thank you
Lukas
[1] https://bugs.debian.org/879004
[2] https://bugs.debian.org/879773
diff -Nru syslinux-6.03+dfsg/debian/changelog syslinux-6.03+dfsg/debian/changelog
--- syslinux-6.03+dfsg/debian/changelog 2015-08-18 17:23:09.000000000 +0200
+++ syslinux-6.03+dfsg/debian/changelog 2017-10-29 19:12:43.000000000 +0100
@@ -1,3 +1,11 @@
+syslinux (3:6.03+dfsg-5+deb8u2) jessie; urgency=medium
+
+ * Add patch from upstream to fix boot problem for old BIOS firmware from
+ around 2005 by correcting the C/H/S order (thanks Thomas Schmitt,
+ Closes: #879004).
+
+ -- Lukas Schwaighofer <lu...@schwaighofer.name> Sun, 29 Oct 2017 19:12:43 +0100
+
syslinux (3:6.03+dfsg-5+deb8u1) jessie; urgency=low
* Cherry-pick upstream patches that fix booting on some Chromebooks
diff -Nru syslinux-6.03+dfsg/debian/patches/0017-isohdpfx.S-correct-heads-sectors.patch syslinux-6.03+dfsg/debian/patches/0017-isohdpfx.S-correct-heads-sectors.patch
--- syslinux-6.03+dfsg/debian/patches/0017-isohdpfx.S-correct-heads-sectors.patch 1970-01-01 01:00:00.000000000 +0100
+++ syslinux-6.03+dfsg/debian/patches/0017-isohdpfx.S-correct-heads-sectors.patch 2017-10-29 19:12:43.000000000 +0100
@@ -0,0 +1,50 @@
+From: Martin Str|mberg <a...@ludd.ltu.se>
+Date: Sun, 26 Mar 2017 07:32:11 -0400
+Subject: mbr/isohdpfx.S: correct stack for heads/sectors
+
+Heads and sectors were pushed in reverse order per isolinux.asm
+(bb519a95 reversed the order of heads/sectors on the stack).
+
+If anything goes wrong, clear CX in case it contains garbage.
+
+Signed-off-by: Gene Cumm <gene.c...@gmail.com>
+
+Bug-Debian: https://bugs.debian.org/879004
+Origin: upstream, quashed two commits together:
+ http://git.zytor.com/syslinux/syslinux.git/commit/?id=32c09027423f61c305e2423e52f5f69ecad8e2c0
+ http://git.zytor.com/syslinux/syslinux.git/commit/?id=8739e2ff9ba3f92652c8df846924fd00e1ce2753
+---
+ mbr/isohdpfx.S | 10 ++++++----
+ 1 file changed, 6 insertions(+), 4 deletions(-)
+
+diff --git a/mbr/isohdpfx.S b/mbr/isohdpfx.S
+index 17e1efe..4b107e4 100644
+--- a/mbr/isohdpfx.S
++++ b/mbr/isohdpfx.S
+@@ -167,20 +167,22 @@ next:
+ read_sector_cbios: movb $0x42, %ah ; jmp read_common */
+ movl $0xeb42b4+((read_common-read_sector_cbios-4) << 24), \
+ (read_sector_cbios)
+- jmp 1f
++ jmp 2f
+ 1:
++ xor %cx, %cx /* Clear EBIOS flag. */
++2:
+ popw %dx
+ pushw %cx /* EBIOS flag */
+
+ /* Get (C)HS geometry */
+ movb $0x08, %ah
+ int $0x13
+- andw $0x3f, %cx /* Sector count */
+ popw %bx /* EBIOS flag */
+- pushw %cx /* -16: Save sectors on the stack */
+ movzbw %dh, %ax /* dh = max head */
+ incw %ax /* From 0-based max to count */
+- pushw %ax /* -18: Save heads on the stack */
++ pushw %ax /* -16: Save heads on the stack */
++ andw $0x3f, %cx /* Sector count */
++ pushw %cx /* -18: Save sectors on the stack */
+ mulw %cx /* Heads*sectors -> sectors per cylinder */
+
+ pushw %bx /* -20: EBIOS flag */
diff -Nru syslinux-6.03+dfsg/debian/patches/series syslinux-6.03+dfsg/debian/patches/series
--- syslinux-6.03+dfsg/debian/patches/series 2015-08-18 17:13:25.000000000 +0200
+++ syslinux-6.03+dfsg/debian/patches/series 2017-10-29 19:12:43.000000000 +0100
@@ -4,3 +4,4 @@
0004-gnu-efi-git.patch
0005-load-linux-correct-type.patch
0006-load-linux-protected-mode.patch
+0017-isohdpfx.S-correct-heads-sectors.patch
pgpFl9n1stdXY.pgp
Description: OpenPGP digital signature
--- End Message ---
--- Begin Message ---
Version: 8.10
Hi,
Each of the updates referenced in these bugs was included in this
morning's jessie point release. Thanks!
Regards,
Adam
--- End Message ---
