If you have problems and the kernel hangs during the boot process, doesn't recognize peripherals you actually have, or drives are not recognized properly, the first thing to check is the boot parameters, as discussed in Section 5.2, “Boot Parameters”.
Often, problems can be solved by removing add-ons and peripherals, and then trying booting again.
If you have a large amount of memory installed in your machine, more
than 512M, and the installer hangs when booting the kernel, you may
need to include a boot argument to limit the amount of memory the
kernel sees, such as
During the boot sequence, you may see many messages in the form
can't find ,
this driver release depends
Most of these messages are harmless. You
see them because the kernel for the installation system is built to
run on computers with many different peripheral devices. Obviously, no
one computer will have every possible peripheral device, so the
operating system may emit a few complaints while it looks for
peripherals you don't own. You may also see the system pause for a
while. This happens when it is waiting for a device to respond, and
that device is not present on your system. If you find the time it
takes to boot the system unacceptably long, you can create a
custom kernel later (see Section 8.6, “Compiling a New Kernel”).
If you get through the initial boot phase but cannot complete the install, the menu optionmay be helpful. It lets you store system error logs and configuration information from the installer to a floppy, or download them using a web browser. This information may provide clues as to what went wrong and how to fix it. If you are submitting a bug report, you may want to attach this information to the bug report.
Other pertinent installation messages may be found in
/var/log/ during the
after the computer has been booted into the installed system.
If you still have problems, please submit an installation report. We also encourage installation reports to be sent even if the installation is successful, so that we can get as much information as possible on the largest number of hardware configurations.
Note that your installation report will be published in the Debian Bug Tracking System (BTS) and forwarded to a public mailing list. Make sure that you use an e-mail address that you do not mind being made public.
If you have a working Debian system, the easiest way to send an installation
report is to install the
(aptitude install installation-report reportbug),
reportbug as explained in
Section 8.5.2, “Sending E-Mails Outside The System”, and run the command reportbug
Alternatively you can use this template when filling out
installation reports, and file the report as a bug report against the
installation-reports pseudo package, by sending it to
Package: installation-reports Boot method: <How did you boot the installer? CD? floppy? network?> Image version: <Full URL to image you downloaded is best> Date: <Date and time of the install> Machine: <Description of machine (eg, IBM Thinkpad R32)> Processor: Memory: Partitions: <df -Tl will do; the raw partition table is preferred> Output of lspci -nn and lspci -vnn: Base System Installation Checklist: [O] = OK, [E] = Error (please elaborate below), [ ] = didn't try it Initial boot: [ ] Detect network card: [ ] Configure network: [ ] Detect CD: [ ] Load installer modules: [ ] Detect hard drives: [ ] Partition hard drives: [ ] Install base system: [ ] Clock/timezone setup: [ ] User/password setup: [ ] Install tasks: [ ] Install boot loader: [ ] Overall install: [ ] Comments/Problems: <Description of the install, in prose, and any thoughts, comments and ideas you had during the initial install.>
In the bug report, describe what the problem is, including the last visible kernel messages in the event of a kernel hang. Describe the steps that you did which brought the system into the problem state.