Hello
during the installation of debian testing/unstable i missed menu
offering to set root password.how should i login to the system?is the
any default password for root set by installation?
please help.
thanks


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Em Seg, 2004-01-19 =C3=A0s 10:33, konf escreveu:
quote:

> during the installation of debian testing/unstable i missed menu
> offering to set root password.how should i login to the system?is the
> any default password for root set by installation?


You should reboot, get the Lilo prompt (the S or C or A keys should do
it), and pass the init S parameter.


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Hello

Leandro Guimarães Faria Corcete Dutra (<ldutra@prefeitura.sp.gov.br> )
wrote:
quote:

> Em Seg, 2004-01-19 às 10:33, konf escreveu: 
>
> You should reboot, get the Lilo prompt (the S or C or A keys should do
> it), and pass the init S parameter.


I don't know about unstable or sarge, but if you use Woody and boot into
single user mode, you will be asked for the root password. You can
however try

Linux init=/bin/sh

instead. After the system booted, remount your / read-write:

mount / -o remount,rw

and call passwd to set the root password.

best regards
Andreas Janssen

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On Mon, Jan 19, 2004 at 01:33:27PM +0100, konf wrote:
quote:

> during the installation of debian testing/unstable i missed menu
> offering to set root password.how should i login to the system?is the


(1) When (re-)configuring a system, have a paper notebook handy.  Unless
you have an infaliable memory, this is a paramount.
quote:

> any default password for root set by installation?


(2) At the kernel command line, add ``init=/bin/sh'' at the end.  This
should boot the sh(1) shell just after the kernel is booted,
circumventing any security measures.  Depending on your setup, you might
have to boot off a rescue/install disk in order to get a bootloader prompt.
(3) at the shell prompt, mount the filesystem carrying /etc/shadow for write
 access: ``mount -o remount,rw /''
(4) call the password alteration command: ``passwd''; change the password.
(5) unmount, so that you won't get fs corruption: ``mount -o remount,ro /''
(6) just to be sure the data are really written: ``sync'' and wait a while
(7) reboot

I hope I didn't miss anything, I'm writing this off of the top of my
head ;-)

You can see, there is not much to the Unix security if the attacker can
mess with the bootup process.   Restricting physical access, and/or
setting up bootup/bootloader passwords is a necessity when security is
an issue.

HTH,
Jan.

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