Re: fake rtc
On Thu, 2010-10-21 at 15:08 -0400, Eric Cooper wrote:
> Another approach would be to use a u-boot environment variable to save
> and restore the (approximate) time. The advantage is that it could be
> done before fscking any filesystems, at the cost of some additional
> wear on the flash.
> No matter where you store the time, when restoring it you could also
> look for the newest mtime of files in /var, to get a better estimate
> in the case where the system crashed before saving a recent time
> value.
I think the /var approach would be more flexible, as not dependent on a
particular bootloader.
Is it possible to take a look at a filesystems modification time? That
would be probably the best source, to look when the rootfs has been last
written too...
Could be maybe done in the initrd enviorment, before fsck kicks in...
> --
> Eric Cooper e c c @ c m u . e d u
>
>
Reply to: