Martin Bochnig wrote:
> Hello OS/Net,
>
> may this be a bug related to my specific hardware {#0}, or is it a new
> feature to dramatically speed up reboots?
> On SXCE build 114 x86 I noticed, that when I run
>
> # init 6
>
> the system properly shuts down, syncs filesystems and then _instantly_
> (after less than a second) reinitializes the kernel!
> Without going to POST/BIOS and - especially nice - without having Grub
> to download the ramdisk image.
>
> This saves about 2 to 3 minutes time per reboot on my machine (Plus:
> It avoids problems if you run a system without ALOM/RSC as server if
> you are not around, the system needs to be rebooted [simply via ssh to
> the running host] or if it ever panics, yet it cannot be ensured that
> somebody is around, when the boot disk is not set as the default boot
> device in the BIOS, where manual interaction during POST is needed to
> pick the right device via F^12 through the BIOS's boot menu. In case
> of the described soft-reboot all that is no problem at all, because
> the right OS instance just gets rebooted, nothing to worry about!).
> It feels, as if you reboot a zone. Only that it is the global zone.
>
> tmpfs gets re-initialized from scratch.
> Files in /tmp do not surivive such a soft-reboot, just as it has
> always been with a normal hard-reboot.
>
> At first I thought of a potential ACPI problem to be the cause. Yet
> init 5 (or poweroff) does poweroff and switch off this Laptop.
> So even if this is a hardware related bug (is it?), please implement
> it that way.
> It works great.
>
>
> I didn't yet google for it.
> Could somebody of you please provide me (a pointer to) more
> information about it?
Hi Martin
Have a look at http://blogs.sun.com/sherrym/entry/fast_reboot_by_default_and
Fast reboot became the default reboot as of snv_112.
Rafael
> {#0}
> FUJITSU SIEMENS AMILO Notebook Pa 3515
> BIOS Configuration: Phoenix Technologies LTD V1.16 01/06/2009
>
>
>
> %martin
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