Mike Larkin <[email protected]> wrote:

> On Thu, Aug 23, 2018 at 11:05:40AM -0500, Todd T. Fries wrote:
> > This makes me wonder. Does it make sense to support booting a kernel without
> > disks?  Some people have heard of the phrase 'diskless' ;-)
> > 
> > Penned by Reyk Floeter on 20180822 13:35.23, we have:
> > | Hi,
> > | 
> > | vmctl doesn't allow to boot VMs with only a CDROM.  I see no reason
> > | for it and vmd already allows CDROM-only.
> > | 
> > | OK?
> > | 
> > | Via https://twitter.com/wizardishungry/status/1032327323125727232
> > | "Jon Williams @wizardishungry
> > | @reykfloeter Could you consider allowing booting ISO-only vms in 6.4?
> > | This is helpful for running container hosts (e.g. boot2docker)."
> > | 
> > | Reyk
> > | 
> > | Index: usr.sbin/vmctl/vmctl.c
> > | ===================================================================
> > | RCS file: /cvs/src/usr.sbin/vmctl/vmctl.c,v
> > | retrieving revision 1.54
> > | diff -u -p -u -p -r1.54 vmctl.c
> > | --- usr.sbin/vmctl/vmctl.c        12 Jul 2018 12:04:49 -0000      1.54
> > | +++ usr.sbin/vmctl/vmctl.c        22 Aug 2018 18:29:44 -0000
> > | @@ -98,8 +98,8 @@ vm_start(uint32_t start_id, const char *
> > |                   errx(1, "too many disks");
> > |           else if (ndisks == 0)
> > |                   warnx("starting without disks");
> > | -         if (kernel == NULL && ndisks == 0)
> > | -                 errx(1, "no kernel or disk specified");
> > | +         if (kernel == NULL && ndisks == 0 && !iso)
> > | +                 errx(1, "no kernel or disk/cdrom specified");
> > |           if (nnics == -1)
> > |                   nnics = 0;
> > |           if (nnics > VMM_MAX_NICS_PER_VM)
> > 
> > -- 
> > Todd T. Fries . http://todd.fries.net/pgp.txt . @unix2mars . 
> > github:toddfries
> > 
> 
> I know personally of at least 3 people using vmm(4)/vmd(8) with gigantisch
> ramdisks containing all sorts of goo. None of them use any disks.

but no AFS in sight.


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