auto-biarch (x86_64 + i686) LiveDVD patch + ISO
by Jan Kratochvil
Hi,
finally created a LiveDVD ISO automatically booting x86_64 OS on x86_64
(and i686 otherwise). Regular users will not notice there exists any new arch
while they will benefit from the full performance of their PC:
http://people.redhat.com/jkratoch/x86bilive-2009062000.tar.gz (71KB)
It uses live_dir=LiveOS-x86_64 vs. live_dir=LiveOS-i686 to boot the image.
The syslinux patch provides "default-{x86_64,i386}" keywords in isolinux.cfg.
livecd-iso-to-disk is not patched/compatible with such image.
livecd-creator should create such ISO on a single run, not by merging the
output of two livecd-creator runs by a 3rd party app.
Regards,
Jan
Reasons:
* I still did not understand why I have to carry with me two media - both
x86_64 and i386 - when all the data perfectly fit on a single media.
* Why I have to try to boot x86_64 first to find out if the specific machine
is x86_64? Even common programmers do not know it, "Windows XP works here".
* The OS must "just work", it must be fun and easy. Requiring a special
technical decision before even starting the OS download is a showstopper.
* Checked that a regular user will on http://fedoraproject.org/get-fedora
still download terrible performance degradation of 32-bit OS although her
hadware is in 70%-95%(?) of cases x86_64. x86_64 is here for 6 years now.
* Arguing x86 may be faster than x86_64... I did not find any such case,
x86_64 is a more modern arch (more registers, PIC for free, better ABI).
We already hit the 2GB address space limitations. x86_64 is the future.
* All the friends of mine have 8Mbit+ ADSL and TB disks downloading many DVD
disks so some several more hundreds of MB are not something to notice.
mkisofs -f -J -r -hide-rr-moved -hide-joliet-trans-tbl -V Fedora-11-x86bi-Live -o ../x86bilive.iso -b isolinux/isolinux.bin -c isolinux/boot.cat -no-emul-boot -boot-info-table -boot-load-size 4 .
mount -r -o loop Fedora-11-x86_64-Live.iso x86_64/
mount -r -o loop Fedora-11-i686-Live.iso i686/
x86bilive:
total 4
lrwxrwxrwx 1 root root 13 2009-06-18 21:10 GPL -> ../x86_64/GPL
lrwxrwxrwx 1 root root 14 2009-06-18 21:11 LiveOS-i686 -> ../i686/LiveOS/
lrwxrwxrwx 1 root root 16 2009-06-18 21:10 LiveOS-x86_64 -> ../x86_64/LiveOS/
lrwxrwxrwx 1 root root 16 2009-06-18 21:10 README -> ../x86_64/README
drwxr-xr-x 2 root root 4096 2009-06-20 21:44 isolinux/
x86bilive/isolinux:
total 184
lrwxrwxrwx 1 root root 30 2009-06-18 21:13 boot.cat -> ../../x86_64/isolinux/boot.cat
lrwxrwxrwx 1 root root 31 2009-06-18 21:17 ii686 -> ../../i686/isolinux/initrd0.img
-rw-r--r-- 1 root root 14336 2009-06-20 21:45 isolinux.bin
-r--r--r-- 1 root root 1411 2009-06-20 21:44 isolinux.cfg
lrwxrwxrwx 1 root root 33 2009-06-18 21:13 ix8664 -> ../../x86_64/isolinux/initrd0.img
lrwxrwxrwx 1 root root 28 2009-06-18 21:17 ki686 -> ../../i686/isolinux/vmlinuz0
lrwxrwxrwx 1 root root 30 2009-06-18 21:13 kx8664 -> ../../x86_64/isolinux/vmlinuz0
lrwxrwxrwx 1 root root 29 2009-06-18 21:13 memtest -> ../../x86_64/isolinux/memtest
lrwxrwxrwx 1 root root 32 2009-06-18 21:13 splash.jpg -> ../../x86_64/isolinux/splash.jpg
-r--r--r-- 1 root root 159888 2009-06-20 20:48 vesamenu.c32
isolinux.cfg:
default vesamenu.c32
timeout 100
menu background splash.jpg
menu title Welcome to Fedora-11-x86bi-Live!
menu color border 0 #ffffffff #00000000
menu color sel 7 #ffffffff #ff000000
menu color title 0 #ffffffff #00000000
menu color tabmsg 0 #ffffffff #00000000
menu color unsel 0 #ffffffff #00000000
menu color hotsel 0 #ff000000 #ffffffff
menu color hotkey 7 #ffffffff #ff000000
menu color timeout_msg 0 #ffffffff #00000000
menu color timeout 0 #ffffffff #00000000
menu color cmdline 0 #ffffffff #00000000
menu hidden
menu hiddenrow 5
label linux0
menu label x86_64 Boot
kernel kx8664
append initrd=ix8664 root=CDLABEL=Fedora-11-x86bi-Live rootfstype=auto live_dir=LiveOS-x86_64 ro liveimg quiet rhgb
menu default-x86_64
label check0
menu label x86_64 Verify and Boot
kernel kx8664
append initrd=ix8664 root=CDLABEL=Fedora-11-x86bi-Live rootfstype=auto live_dir=LiveOS-x86_64 ro liveimg quiet rhgb check
label linux1
menu label i686 Boot
kernel ki686
append initrd=ii686 root=CDLABEL=Fedora-11-x86bi-Live rootfstype=auto live_dir=LiveOS-i686 ro liveimg quiet rhgb
menu default-i386
label check1
menu label i686 Verify and Boot
kernel ki686
append initrd=ii686 root=CDLABEL=Fedora-11-x86bi-Live rootfstype=auto live_dir=LiveOS-i686 ro liveimg quiet rhgb check
label memtest
menu label Memory Test
kernel memtest
label local
menu label Boot from local drive
localboot 0xffff
--- /dev/null 1 Jan 1970 00:00:00 -0000
+++ defaults.patch 20 Jun 2009 20:10:46 -0000
@@ -0,0 +1,175 @@
+--- syslinux-3.75-orig/com32/menu/Makefile 2009-04-16 06:42:14.000000000 +0200
++++ syslinux-3.75-defaults/com32/menu/Makefile 2009-06-20 19:21:32.000000000 +0200
+@@ -24,7 +24,7 @@ MODULES = menu.c32 vesamenu.c32
+ TESTFILES =
+
+ COMMONOBJS = menumain.o readconfig.o passwd.o drain.o printmsg.o colors.o \
+- background.o refstr.o execute.o
++ background.o refstr.o execute.o verify_cpu.o
+
+ all: $(MODULES) $(TESTFILES)
+
+--- syslinux-3.75-orig/com32/menu/menu.h 2009-04-16 06:42:14.000000000 +0200
++++ syslinux-3.75-defaults/com32/menu/menu.h 2009-06-20 19:21:32.000000000 +0200
+@@ -224,4 +224,9 @@ void execute(const char *cmdline, enum k
+ /* drain.c */
+ void drain_keyboard(void);
+
++/* verify_cpu.S */
++#if defined(__i386__) || defined(__x86_64__)
++int verify_cpu(void);
++#endif
++
+ #endif /* MENU_H */
+--- syslinux-3.75-orig/com32/menu/readconfig.c 2009-04-16 06:42:14.000000000 +0200
++++ syslinux-3.75-defaults/com32/menu/readconfig.c 2009-06-20 20:23:24.000000000 +0200
+@@ -656,11 +656,22 @@ static void parse_config_file(FILE *f)
+ m->parent_entry->displayname = refstr_get(m->title);
+ }
+ }
+- } else if ( looking_at(p, "default") ) {
+- if (ld.label) {
+- ld.menudefault = 1;
+- } else if (m->parent_entry) {
+- m->parent->defentry = m->parent_entry->entry;
++ } else if ( looking_at(p, "default")
++#if defined(__i386__) || defined(__x86_64__)
++ || looking_at(p, "default-i386")
++ || looking_at(p, "default-x86_64")
++#endif
++ ) {
++#if defined(__i386__) || defined(__x86_64__)
++ if (! ( ( looking_at(p, "default-i386") && verify_cpu () == 0 ) ||
++ ( looking_at(p, "default-x86_64") && verify_cpu () != 0 ) ) )
++#endif
++ {
++ if (ld.label) {
++ ld.menudefault = 1;
++ } else if (m->parent_entry) {
++ m->parent->defentry = m->parent_entry->entry;
++ }
+ }
+ } else if ( looking_at(p, "hide") ) {
+ ld.menuhide = 1;
+--- syslinux-3.75-orig/com32/menu/verify_cpu.S 1970-01-01 01:00:00.000000000 +0100
++++ syslinux-3.75-defaults/com32/menu/verify_cpu.S 2009-06-20 20:30:27.000000000 +0200
+@@ -0,0 +1,119 @@
++/* https://lists.linux-foundation.org/pipermail/fastboot/2006-November/01188... */
++#if defined(__i386__) || defined(__x86_64__)
++ .globl verify_cpu
++verify_cpu:
++ push %ebx
++ push %esi
++ push %edi
++ push %ebp
++ call Xverify_cpu
++ pop %ebp
++ pop %edi
++ pop %esi
++ pop %ebx
++ ret
++
++/*
++ *
++ * verify_cpu.S
++ *
++ * 14 Nov 2006 Vivek Goyal: Created the file
++ *
++ * This is a common code for verification whether CPU supports
++ * long mode and SSE or not. It is not called directly instead this
++ * file is included at various places and compiled in that context.
++ * Following are the current usage.
++ *
++ * This file is included by both 16bit and 32bit code.
++ *
++ * arch/x86_64/boot/setup.S : Boot cpu verification (16bit)
++ * arch/x86_64/boot/compressed/head.S: Boot cpu verification (32bit)
++ * arch/x86_64/kernel/trampoline.S: secondary processor verfication (16bit)
++ * arch/x86_64/kernel/acpi/wakeup.S:Verfication at resume (16bit)
++ *
++ * verify_cpu, returns the status of cpu check in register %eax.
++ * 0: Success 1: Failure
++ *
++ * The caller needs to check for the error code and take the action
++ * appropriately. Either display a message or halt.
++ */
++
++Xverify_cpu:
++
++ pushfl # Save caller passed flags
++ pushl $0 # Kill any dangerous flags
++ popfl
++
++ /* minimum CPUID flags for x86-64 */
++ /* see http://www.x86-64.org/lists/discuss/msg02971.html */
++#define SSE_MASK ((1<<25)|(1<<26))
++#define REQUIRED_MASK1 ((1<<0)|(1<<3)|(1<<4)|(1<<5)|(1<<6)|(1<<8)|\
++ (1<<13)|(1<<15)|(1<<24))
++#define REQUIRED_MASK2 (1<<29)
++ pushfl # standard way to check for cpuid
++ popl %eax
++ movl %eax,%ebx
++ xorl $0x200000,%eax
++ pushl %eax
++ popfl
++ pushfl
++ popl %eax
++ cmpl %eax,%ebx
++ jz verify_cpu_no_longmode # cpu has no cpuid
++
++ movl $0x0,%eax # See if cpuid 1 is implemented
++ cpuid
++ cmpl $0x1,%eax
++ jb verify_cpu_no_longmode # no cpuid 1
++
++ xor %di,%di
++ cmpl $0x68747541,%ebx # AuthenticAMD
++ jnz verify_cpu_noamd
++ cmpl $0x69746e65,%edx
++ jnz verify_cpu_noamd
++ cmpl $0x444d4163,%ecx
++ jnz verify_cpu_noamd
++ mov $1,%di # cpu is from AMD
++
++verify_cpu_noamd:
++ movl $0x1,%eax # Does the cpu have what it takes
++ cpuid
++ andl $REQUIRED_MASK1,%edx
++ xorl $REQUIRED_MASK1,%edx
++ jnz verify_cpu_no_longmode
++
++ movl $0x80000000,%eax # See if extended cpuid is implemented
++ cpuid
++ cmpl $0x80000001,%eax
++ jb verify_cpu_no_longmode # no extended cpuid
++
++ movl $0x80000001,%eax # Does the cpu have what it takes
++ cpuid
++ andl $REQUIRED_MASK2,%edx
++ xorl $REQUIRED_MASK2,%edx
++ jnz verify_cpu_no_longmode
++
++verify_cpu_sse_test:
++ movl $1,%eax
++ cpuid
++ andl $SSE_MASK,%edx
++ cmpl $SSE_MASK,%edx
++ je verify_cpu_sse_ok
++ test %di,%di
++ jz verify_cpu_no_longmode # only try to force SSE on AMD
++ movl $0xc0010015,%ecx # HWCR
++ rdmsr
++ btr $15,%eax # enable SSE
++ wrmsr
++ xor %di,%di # don't loop
++ jmp verify_cpu_sse_test # try again
++
++verify_cpu_no_longmode:
++ popfl # Restore caller passed flags
++ movl $1,%eax
++ ret
++verify_cpu_sse_ok:
++ popfl # Restore caller passed flags
++ xorl %eax, %eax
++ ret
++#endif
--- syslinux.spec 16 Apr 2009 18:11:30 -0000 1.59
+++ syslinux.spec 20 Jun 2009 20:10:46 -0000
@@ -7,6 +7,7 @@ License: GPLv2+
Group: Applications/System
URL: http://syslinux.zytor.com/
Source0: ftp://ftp.kernel.org/pub/linux/utils/boot/syslinux/%{name}-%{tarball_vers...
+Patch9: defaults.patch
ExclusiveArch: %{ix86} x86_64
Buildroot: %{_tmppath}/%{name}-%{version}-%{release}-root-%(%{__id_u} -n)
BuildRequires: nasm >= 0.98.38-1, perl, netpbm-progs
@@ -33,12 +34,18 @@ MEMDISK, which loads legacy operating sy
%prep
%setup -q -n syslinux-%{tarball_version}
+%patch9 -p1
%build
CFLAGS="-Werror -Wno-unused -finline-limit=2000"
export CFLAGS
# If you make clean here, we lose the provided syslinux.exe
#make clean
+rm -f com32/menu/vesamenu.c32
+make -C com32/lib libcom32.a
+make -C com32/gpllib libcom32gpl.a
+make -C com32/menu vesamenu.c32
+test -f com32/menu/vesamenu.c32
make installer
make -C sample tidy
12 years, 9 months
[PATCH v2] Implement %post --erroronfail
by Daniel Drake
This flag is documented and parsed, but not acted upon.
---
imgcreate/creator.py | 11 +++++++++--
1 files changed, 9 insertions(+), 2 deletions(-)
diff --git a/imgcreate/creator.py b/imgcreate/creator.py
index 909f616..4deb49e 100644
--- a/imgcreate/creator.py
+++ b/imgcreate/creator.py
@@ -23,6 +23,7 @@ import sys
import tempfile
import shutil
import logging
+import subprocess
import selinux
import yum
@@ -702,11 +703,17 @@ class ImageCreator(object):
script = "/tmp/" + os.path.basename(path)
try:
- subprocess.call([s.interp, script],
- preexec_fn = preexec, env = env)
+ subprocess.check_call([s.interp, script],
+ preexec_fn = preexec, env = env)
except OSError, (err, msg):
raise CreatorError("Failed to execute %%post script "
"with '%s' : %s" % (s.interp, msg))
+ except subprocess.CalledProcessError, err:
+ if s.errorOnFail:
+ raise CreatorError("%%post script failed with code %d "
+ % err.returncode)
+ logging.warning("ignoring %%post failure (code %d)"
+ % err.returncode)
finally:
os.unlink(path)
--
1.6.2.5
13 years, 4 months
Custom initrd
by Mads Kiilerich
I am using livecd-creator from livecd-tools-024-1.fc11.i586 and need to
customize the initrd. But I have problems making it work and figuring
out what is going on.
I have figured out that livecd-creator through imgcreate creates a
/etc/sysconfig/mkinitrd. When rpms runs mkinitrd from their %post script
then it will exec mkliveinitrd and use the configured module list.
AFAICS livecd-creator then picks up the initrd from /boot, and the end
result after having written the iso to usb with livecd-iso-to-disk is
that it ends up in /syslinux/initrd0.img.
But if I overwrite the /boot/initrd* in %post like this:
/sbin/mkinitrd -f /boot/initrd-$(rpm -q kernel --qf
'%{version}-%{release}.%{arch}\n').img $(rpm -q kernel --qf
'%{version}-%{release}.%{arch}\n')
then it won't be used.
What am I doing wrong? When is the initrd picked up? What is the code flow?
If I make %post preserve /etc/sysconfig/mkinitrd and boots from usb and
restores /etc/sysconfig/mkinitrd and runs
/sbin/mkinitrd -f /mnt/live/syslinux/initrd0.img $(rpm -q kernel
--qf "%{version}-%{release}.%{arch}\n")
then it works as expected.
/Mads
13 years, 7 months
PPC livecd-iso-to-pxeboot?
by Thomas J. Baker
Is this supposed to work?
root@localhost> livecd-iso-to-pxeboot fishercat-ppc-20100119160424.iso
The ISO image doesn't look like a LiveCD ISO image to me.
Cleaning up to exit...
root@localhost>
If not, is there a recipe for getting a ppc livecd iso to pxeboot?
Thanks,
tjb
--
=======================================================================
| Thomas Baker email: tjb(a)unh.edu |
| Systems Programmer |
| Research Computing Center voice: (603) 862-4490 |
| University of New Hampshire fax: (603) 862-1761 |
| 332 Morse Hall |
| Durham, NH 03824 USA http://wintermute.sr.unh.edu/~tjb |
=======================================================================
13 years, 8 months
Re: [Fedora-livecd-list] Contents of livecd Digest, Vol 57, Issue 3
by Nguyen Quang Tri
________________________________
From: "livecd-request(a)lists.fedoraproject.org" <livecd-request(a)lists.fedoraproject.org>
To: livecd(a)lists.fedoraproject.org
Sent: Wed, January 20, 2010 7:00:07 PM
Subject: livecd Digest, Vol 57, Issue 3
Send livecd mailing list submissions to
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or, via email, send a message with subject or body 'help' to
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When replying, please edit your Subject line so it is more specific
than "Re: Contents of livecd digest..."
Today's Topics:
1. Re: local files from tmpdir ending up on live images?
(Jeremy Katz)
----------------------------------------------------------------------
Message: 1
Date: Tue, 19 Jan 2010 21:27:56 -0500
From: Jeremy Katz <katzj(a)fedoraproject.org>
Subject: Re: [Fedora-livecd-list] local files from tmpdir ending up on
live images?
To: livecd(a)lists.fedoraproject.org
Message-ID:
<71b2a8b81001191827v4c19193exd87b7d586f1d6824(a)mail.gmail.com>
Content-Type: text/plain; charset=UTF-8
My first guess would be something doing a chroot() earlier than it
previously did.
- Jeremy
On Tue, Jan 19, 2010 at 4:40 AM, Sebastian Vahl
<deadbabylon(a)googlemail.com> wrote:
> Hi.
>
> On my newer live images parts of my tmpdir are present on the live images. eg:
>
> /daten/LIVECD/tmp/imgcreate-3bMr5y/install_root/var/cache/yum/installed/
> /daten/LIVECD/tmp/imgcreate-3bMr5y/install_root/var/lib/yum/history/history-2010-01-18.sqlite
> /daten/LIVECD/tmp/imgcreate-3bMr5y/install_root/var/lib/yum/yumdb/
>
> I use fedora-livecd-kde.ks and newest livecd-tools from git.
>
> Any clue why this happens?
>
> Sebastian
>
> --
> livecd mailing list
> livecd(a)lists.fedoraproject.org
> https://admin.fedoraproject.org/mailman/listinfo/livecd
>
------------------------------
--
livecd mailing list
livecd(a)lists.fedoraproject.org
https://admin.fedoraproject.org/mailman/listinfo/livecd
End of livecd Digest, Vol 57, Issue 3
*************************************
13 years, 8 months
local files from tmpdir ending up on live images?
by Sebastian Vahl
Hi.
On my newer live images parts of my tmpdir are present on the live images. eg:
/daten/LIVECD/tmp/imgcreate-3bMr5y/install_root/var/cache/yum/installed/
/daten/LIVECD/tmp/imgcreate-3bMr5y/install_root/var/lib/yum/history/history-2010-01-18.sqlite
/daten/LIVECD/tmp/imgcreate-3bMr5y/install_root/var/lib/yum/yumdb/
I use fedora-livecd-kde.ks and newest livecd-tools from git.
Any clue why this happens?
Sebastian
13 years, 8 months
fc11 Live: impossible to create the generic user
by Davide Marchi
hi,
finalizes the FC11 live, it is impossible to create the generic user;
Indeed, the initiation of live, you are missing any generic part
"firstboot";
this behavior even with the original version of fedora-base.ks
Many thanks
--
cosmogoniA <http://www.cosmogonia.org/>
noprovarenofareononfarenonc'èprovare
13 years, 9 months
