Re: Rescue mode

["Mattthew D. Pitts" <mpitts@suite224.net>]

Alexander,
Even in Windows 95, it is NOT a kernel issue. IO.SYS/COMMAND.COM handle the
determination by scanning the registery. OSR 2.x runs SCANDISK on improper
shutdown. SysVinit does everything that you need (look in /etc/rc.d for the
files).

----------
> From: Alexander Maryanchick <Sasha@GDev.msk.ru>
> To: linux-future@nl.linux.org
> Subject: Re: Rescue mode
> Date: Sunday, March 07, 1999 10:24 AM
> 
> >> -  to show rescue menu only in two cases:
> >>     - The previous boot failed.
> > Define "failed".
> Two (or more) variants (analogs for "FS was not cleanly unmounted"):
> - Crashed. (Flag "ShutdownSuccessful" is not set)
> - Flag "BootSuccessful" is not set. (For example, login, xdm,... not
crashed
> in 5 second)
> A kernel issue!
> 
> >> - to have always ready to use system image (kernel, startup scripts,
> etc.).
> > A distribution issue.
> Nope. See below.
> >> - updated automaticaly after every successful configuration change.
> A kernel issue. It requires reliable "BootSuccessful" flag.
No.  
> > Define "successful configuration change".
> 1. Critical files was changed (not the same in root and rescue image)
> 2. At least one boot was not failed (the definition was given ealier)
> 
> Mustdie(TM) uses another method.
> In rescue mode it ignores non-critical conf. files (autoexec) at boot and
at
> run time
> and non-critical drivers (recognized by flags in header).
> This way is also a kernel issue.
Wrong. Windows 95 doesn't even need autoexec.bat/config.sys to run all the
hardware installed in the computer as long as you have protected-mode
drivers. 
> > Given a definition, I am sure you can easily implement a method to copy
> > whatever you consider to be the necessary configuration information to
> > wherever LILO knows to look for it.
> Yes, I can implement an ugly hack, but I can not implement
> even 100% of windows rescue mode functionality. Am I wrong?
> IMHO, if feature is worse then in mustdie - then the feature is absent.
As I said above, sysvinit already does it 
> 
>                 Thank you.
>                 Best regards.
> 
>                                 Alexander.
> 
> -
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-
Linux-future: thinking about the future of the Linux kernel
Archive:      http://humbolt.nl.linux.org/lists/
Wish list:    http://users.ox.ac.uk/~mert0236/linux-future.html