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List:       bochs-dev
Subject:    [Bochs-developers] using large iso9660 dvd iso images
From:       "BuraphaLinux Server" <buraphalinuxserver () gmail ! com>
Date:       2008-03-30 11:46:17
Message-ID: 5d75f4610803300446t467a68b8q2f946cb10f5c3c1a () mail ! gmail ! com
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I am attempting to use bochs and have a ~4GB dvd iso image that I boot
from.  I am using a 10GB hard disk image created (flat) with bximage.
I have set megs to 512, I am running as root with unlimited ulimits,
and the machine has 512MB of RAM and 2GB of swap.

Just to get through isolinux and load the initramfs I had to add the
following options on my isolinux command:

  nolapic noapic pci=bios clocksource=jiffies

After a long wait I get this in the bochs log file:

19871446800p[CD   ] >>PANIC<< cdrom: read_block: lseek returned error.
19871446800p[CD   ] >>PANIC<< cdrom: read_block: lseek returned error.
19871446800p[CD   ] >>PANIC<< cdrom: read_block: lseek returned error.
19871446800p[HD   ] >>PANIC<< CDROM: read block 1375067 failed
19991455918p[CD   ] >>PANIC<< cdrom: read_block: lseek returned error.
19991455918p[CD   ] >>PANIC<< cdrom: read_block: lseek returned error.
19991455918p[CD   ] >>PANIC<< cdrom: read_block: lseek returned error.
19991455918p[HD   ] >>PANIC<< CDROM: read block 1375067 failed
19991464649p[CD   ] >>PANIC<< cdrom: read_block: lseek returned error.
19991464649p[CD   ] >>PANIC<< cdrom: read_block: lseek returned error.
19991464649p[CD   ] >>PANIC<< cdrom: read_block: lseek returned error.
19991464649p[HD   ] >>PANIC<< CDROM: read block 1375068 failed
19991469396p[CD   ] >>PANIC<< cdrom: read_block: lseek returned error.
19991469396p[CD   ] >>PANIC<< cdrom: read_block: lseek returned error.
19991469396p[CD   ] >>PANIC<< cdrom: read_block: lseek returned error.
19991469396p[HD   ] >>PANIC<< CDROM: read block 1375069 failed
19991473279p[CD   ] >>PANIC<< cdrom: read_block: lseek returned error.
19991473279p[CD   ] >>PANIC<< cdrom: read_block: lseek returned error.
19991473279p[CD   ] >>PANIC<< cdrom: read_block: lseek returned error.

I am using bochs from CVS on 2008/03/27.

I configured like this:./configure \
   --prefix=/usr \
   --infodir=/usr/info \
   --mandir=/usr/man \
   --enable-sb16 \
   --enable-ne2000 \
   --enable-all-optimizations \
   --enable-cpu-level=6 \
   --enable-x86-64 \
   --enable-sse=2 \
   --enable-pci \
   --enable-acpi \
   --enable-clgd54xx \
   --enable-usb \
   --enable-show-ips \
   --with-x11

The line in bochsrc for the dvd iso image is:

ata1-master: type=cdrom, path="/data/bls1.1/bls1.1.001_dvd.iso", status=inserted

That iso file has a size of 4222871552 bytes.

I am using gcc 4.2.3.

Since I know the DVD image is good (I have burned it to DVD and done
installs from it on real hardware) I wonder if bochs does not support
> 650MB iso images on the cdrom= option.

The bochs does get into my initramfs and run some bash scripts before
hitting the errors listed above, so the kernel does boot, the
initramfs does get mounted.  I want to make things work but I don't
know what to try next.

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