Re: [Xen-users] Problem in linux domU re: /dev/rtc and hwclock

[Diego Molina <diegoaugustomolina@xxxxxxxxx>]

Hi, (just to cover things up) may it be possible to change the cobol
instruction to use the system time instead of the hardware time? That
would be like executing `date' command instead 'hwclock'.

2011/7/12, Digimer <linux@xxxxxxxxxxx>:
> Hi all,
>
>   One of our domU VMs (CentOS 5.6 x86_64) runs a cobol application,
> which in turn called 'clock' to get timestamps. Changing this is
> non-trivial.
>
>   When I try to call 'clock --debug' I get:
>
> [root@vm0010 ~]# clock --debug
> hwclock from util-linux-2.13-pre7
> hwclock: Open of /dev/rtc failed, errno=19: No such device.
> No usable clock interface found.
> Cannot access the Hardware Clock via any known method.
>
>   The device exists:
>
> [root@vm0010 ~]# ls -lah /dev/rtc
> crw------- 1 root root 10, 135 Jul 12 18:00 /dev/rtc
>
>   As I understand it, this is (in part?) to prevent domU from altering
> dom0's date/time. Obviously, this is a good thing, but can the device be
> made available to domU VMs in a "read-only" mode?
>
> Thanks!
>
> --
> Digimer
> E-Mail:              digimer@xxxxxxxxxxx
> Freenode handle:     digimer
> Papers and Projects: http://alteeve.com
> Node Assassin:       http://nodeassassin.org
> "I feel confined, only free to expand myself within boundaries."
>
> _______________________________________________
> Xen-users mailing list
> Xen-users@xxxxxxxxxxxxxxxxxxx
> http://lists.xensource.com/xen-users
>

_______________________________________________
Xen-users mailing list
Xen-users@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-users