RE: intallation ramdisk problem on NetBSD/atari

[David Ross <dross%pobox.com@localhost>]

Yes, I have, without any problem. Just use fd0a instead of md2a, no need for a 
patch. =)



David Ross

dross%pobox.com@localhost


> To: port-atari%NetBSD.org@localhost
> CC: tsutsui%ceres.dti.ne.jp@localhost
> Subject: intallation ramdisk problem on NetBSD/atari
> From: tsutsui%ceres.dti.ne.jp@localhost
> Date: Fri, 29 Jun 2012 02:24:12 +0900
>
> Has anyone recently tried installation using a kernel booted from TOS
> and sysinst.fs ramdisk image loaded from floppy?
>
> NetBSD/atari has used "ramdisk image auto-loaded from floppy on open,"
> but nowadays md(4) is dynamically configured on open
> so we no longer can specify md[012] for a root device by default
> because they are not configured at mountroot().
>
> The attached patch is a dirty hack for atari's traditional installation
> (until it will get ustarfs based bootable floppies?),
> but is there any better workaround for forthcoming 6.0 release?
>
> Thanks,
>
>
> Index: atari/autoconf.c
> ===================================================================
> RCS file: /cvsroot/src/sys/arch/atari/atari/autoconf.c,v
> retrieving revision 1.61
> diff -u -p -r1.61 autoconf.c
> --- atari/autoconf.c 5 Jun 2011 17:09:18 -0000 1.61
> +++ atari/autoconf.c 28 Jun 2012 15:55:05 -0000
> @@ -33,6 +33,8 @@
> #include
> __KERNEL_RCSID(0, "$NetBSD: autoconf.c,v 1.61 2011/06/05 17:09:18 matt Exp 
> $");
>
> +#include "opt_md.h"
> +
> #include
> #include
> #include
> @@ -41,10 +43,17 @@ __KERNEL_RCSID(0, "$NetBSD: autoconf.c,v
> #include
> #include
> #include
> +#include
> #include
> #include
> #include
>
> +#if defined(MEMORY_DISK_HOOKS)
> +#include
> +#endif
> +
> +#include "ioconf.h"
> +
> static void findroot(void);
> int mbmatch(device_t, cfdata_t, void *);
> void mbattach(device_t, device_t, void *);
> @@ -75,6 +84,51 @@ cpu_rootconf(void)
> {
>
> findroot();
> +#if defined(MEMORY_DISK_HOOKS)
> + /*
> + * XXX
> + * quick hacks for atari's traditional "auto-load from floppy on open"
> + * install md(4) ramdisk.
> + * See sys/arch/atari/dev/md_root.c for details.
> + */
> +#define RAMD_NDEV 3 /* XXX */
> +
> + if ((boothowto & RB_ASKNAME) != 0) {
> + int md_major, i;
> + dev_t md_dev;
> + cfdata_t cf;
> + struct md_softc *sc;
> +
> + md_major = devsw_name2blk("md", NULL, 0);
> + if (md_major >= 0) {
> + for (i = 0; i < RAMD_NDEV; i++) {
> + md_dev = MAKEDISKDEV(md_major, i, RAW_PART);
> + cf = malloc(sizeof(*cf), M_DEVBUF,
> + M_ZERO|M_WAITOK);
> + if (cf == NULL)
> + break; /* XXX */
> + cf->cf_name = md_cd.cd_name;
> + cf->cf_atname = md_cd.cd_name;
> + cf->cf_unit = i;
> + cf->cf_fstate = FSTATE_STAR;
> + /* XXX mutex */
> + sc = device_private(config_attach_pseudo(cf));
> + if (sc == NULL)
> + break; /* XXX */
> + }
> + /*
> + * XXX
> + * If booted_device is not recognized,
> + * assume we are booting from TOS and make ffs default
> + * because sometimes md ramdisk image is
> + * mis-recognized as msdosfs and
> + * it causes unexpected panic.
> + */
> + if (booted_device == NULL)
> + rootfstype = "ffs";
> + }
> + }
> +#endif
> setroot(booted_device, booted_partition);
> }
>
> ---
> Izumi Tsutsui