Hi,

I'm trying to install debian-6.0.5-amd64-CD-1.iso from USB
memory-stick. The problem is, that Debian-Installer is not able to
"Detect and mount CD-ROM" during the installation process. The USB
memory-stick is a 2GB model containing MBR and FAT32 file system:

# fdisk -lu /dev/sdb

Disk /dev/sdb: 2013 MB, 2013265920 bytes
62 heads, 62 sectors/track, 1022 cylinders, total 3932160 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x4a02df63

Device Boot Start End Blocks Id System
/dev/sdb1 * 62 3928567 1964253 b W95 FAT32
# file -s /dev/sdb1
/dev/sdb1: x86 boot sector, code offset 0x58, OEM-ID "SYSLINUX",
sectors/cluster 8, Media descriptor 0xf8, heads 62, sectors 3928506
(volumes > 32 MB) , FAT (32 bit), sectors/FAT 3832, serial number
0x4373da42, label: "debian64 "
#

MBR has code needed for booting(first 440 bytes) and syslinux(4.05) is
installed to mentioned partition. Syslinux configuration(syslinux.cfg)
is very simple:

# cat syslinux.cfg
DEFAULT vmlinuz
APPEND initrd=initrd.gz iso-scan/filename=/debian-6.0.5-amd64-CD-1.iso
#

Debian-Installer starts successfully and I'm able to specify locales
and keyboard layout, but "Detect and mount CD-ROM" fails. If I start
the ash("Execute a shell" option in Debian-Installer menu) and mount
memory-stick FAT32 partition to /cdrom using BusyBox mount utility,
I'm able to pass the "Detect and mount CD-ROM" step, but then I'm
stuck in "Load installer components from CD". I even copied entire
content of the debian-6.0.5-amd64-CD-1.iso image to a
"debian-6.0.5-amd64-CD-1.iso_content" directory in memory-stick and
then mounted this "debian-6.0.5-amd64-CD-1.iso_content" directory to
/cdrom using the Debian-Installer shell(goo.gl/v2OgU), but this didn't
help either to pass the "Load installer components from CD" step.

Any ideas how to proceed here? Am I doing something wrong?


regards,
Martin


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On Sun 17 Jun 2012 at 16:37:57 +0300, Martin T wrote:

> I'm trying to install debian-6.0.5-amd64-CD-1.iso from USB
> memory-stick. The problem is, that Debian-Installer is not able to
> "Detect and mount CD-ROM" during the installation process. The USB
> memory-stick is a 2GB model containing MBR and FAT32 file system:

How did you put the iso on the stick? Any reason you cannot use the
method described in section 4.3.1. at

http://www.debian.org/releases/stable/amd64/ch04s03.html.en ?


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On Sun, 2012-06-17 at 16:37 +0300, Martin T wrote:
>
> I'm trying to install debian-6.0.5-amd64-CD-1.iso from USB
> memory-stick. The problem is, that Debian-Installer is not able to
> "Detect and mount CD-ROM" during the installation process. The USB
> memory-stick is a 2GB model containing MBR and FAT32 file system:

The first thing I would do is :-

dd if=<debian.iso> of=/dev/<disk-not partition> bs=1M

to put the cd image onto your usb stick/pendrive.

(I think that is where you are going wrong.)

Boot your computer from this pendrive & it should see your pendrive as
the cdrom & work as expected.

HTH



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On Sun, 17 Jun 2012 16:37:57 +0300, Martin T wrote:

(...)

> Debian-Installer starts successfully and I'm able to specify locales and
> keyboard layout, but "Detect and mount CD-ROM" fails. If I start the
> ash("Execute a shell" option in Debian-Installer menu) and mount
> memory-stick FAT32 partition to /cdrom using BusyBox mount utility, I'm
> able to pass the "Detect and mount CD-ROM" step, but then I'm stuck in
> "Load installer components from CD". I even copied entire content of the
> debian-6.0.5-amd64-CD-1.iso image to a
> "debian-6.0.5-amd64-CD-1.iso_content" directory in memory-stick and then
> mounted this "debian-6.0.5-amd64-CD-1.iso_content" directory to /cdrom
> using the Debian-Installer shell(goo.gl/v2OgU), but this didn't help
> either to pass the "Load installer components from CD" step.

I remember some messages about that error in this same mailing list but I
couldn't remember the workaround (if any), sorry :-P

Anyway, a quick Google has returned this:

cdrom-detect: Need a simple retry or delay to mount USB flash drives
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=667701

Not sure if it can be related :-?

> Any ideas how to proceed here? Am I doing something wrong?

Jump to a debug console to see what's happening in background.

Greetings,

--
Camaleón


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