Subject: Ultrix compatibility: patches to mount Ultrix filesystems (readonly)
To: None <port-pmax@sun-lamp.cs.berkeley.edu>
From: Jonathan Stone <jonathan@DSG.Stanford.EDU>
List: port-pmax
Date: 08/16/1994 03:32:10
The following changes rearrange up block and character special device
numbers to match Ultrix conventions, change the compatibility code for
mount() to grok the Ultrix interface instead of SunOS, make some
gratuitous changes to the default scsi partition table, re-enables
that default table, and adds some (ugly) debugging printf()s that show
what's going on during mounts.
A kernel built with these changes mounts an Ultrix partition
read-only. NetBSD doesn't want to mount partitions with 4.2 style
rotational placement tables. Ultrix filesystems lose against this.
This lets me mount an Ultrix /usr partition read-only. What fun!
ifconfig seems to work on an Ethernet interface (onboard on a 5k/200),
but doesn't seem to answer arp requests once ifconfig'ed. The current
hardware setup here makes it hard to do any more without NFS mounts.
Since the Ultrix netstat and arp try and read names from /vmunix, they
don't work, because there isn't one...
Ultrix really does seem to default to 32768-block A partitions. Is
there some good reason for NetBSD to default to 16384-block A
partitions?
*** ufs/ffs/ffs_vfsops.c.DIST Wed Jun 29 03:33:30 1994
--- ufs/ffs/ffs_vfsops.c Tue Aug 16 03:11:08 1994
***************
*** 391,396 ****
--- 391,397 ----
}
/* XXX updating 4.2 FFS superblocks trashes rotational layout tables */
if (fs->fs_postblformat == FS_42POSTBLFMT && !ronly) {
+ /*DSG*/ printf("ffs_mountfs, ROFS, err %d... \n", error);
error = EROFS; /* XXX what should be returned? */
goto out;
}
*** arch/pmax/dev/rz.c.DIST Tue Jun 14 03:27:45 1994
--- arch/pmax/dev/rz.c Tue Aug 16 03:15:30 1994
***************
*** 89,94 ****
--- 89,104 ----
* (including the boot area).
*/
static struct size rzdefaultpart[MAXPARTITIONS] = {
+ #ifdef GENERIC /* greedy machines have 64 meg of swap */
+ 0, 32768, /* A */
+ 32768, 131072, /* B */
+ 0, 0, /* C */
+ 17408, 0, /* D */
+ 115712, 0, /* E */
+ 218112, 0, /* F */
+ 163840, 0, /* G */
+ 115712, 0, /* H */
+ #else
0, 16384, /* A */
16384, 65536, /* B */
0, 0, /* C */
***************
*** 97,102 ****
--- 107,113 ----
218112, 0, /* F */
81920, 0, /* G */
115712, 0, /* H */
+ #endif
};
#define RAWPART 2 /* 'c' partition */ /* XXX */
***************
*** 695,702 ****
msg = readdisklabel(dev, rzstrategy, lp, &cd);
if (msg == NULL)
return;
! #if 0
printf("rz%d: WARNING: %s\n", unit, msg);
sc->sc_label.d_magic = DISKMAGIC;
sc->sc_label.d_magic2 = DISKMAGIC;
sc->sc_label.d_type = DTYPE_SCSI;
--- 706,715 ----
msg = readdisklabel(dev, rzstrategy, lp, &cd);
if (msg == NULL)
return;
!
printf("rz%d: WARNING: %s\n", unit, msg);
+ #if 1
+ bzero(lp, sizeof (*lp));
sc->sc_label.d_magic = DISKMAGIC;
sc->sc_label.d_magic2 = DISKMAGIC;
sc->sc_label.d_type = DTYPE_SCSI;
***************
*** 709,717 ****
sc->sc_label.d_sbsize = SBSIZE;
for (i = 0; i < MAXPARTITIONS; i++) {
sc->sc_label.d_partitions[i].p_size =
! rzdefaultpart[i].nblocks;
sc->sc_label.d_partitions[i].p_offset =
rzdefaultpart[i].strtblk;
}
sc->sc_label.d_partitions[RAWPART].p_size = sc->sc_blks;
#endif
--- 722,734 ----
sc->sc_label.d_sbsize = SBSIZE;
for (i = 0; i < MAXPARTITIONS; i++) {
sc->sc_label.d_partitions[i].p_size =
! (rzdefaultpart[i].nblocks) ?
! rzdefaultpart[i].nblocks: sc->sc_blks;
sc->sc_label.d_partitions[i].p_offset =
rzdefaultpart[i].strtblk;
+ printf(" default rz%d%c: start %d len %d\n",
+ unit, "abcdefgh"[i],
+ rzdefaultpart[i].strtblk, rzdefaultpart[i].nblocks);
}
sc->sc_label.d_partitions[RAWPART].p_size = sc->sc_blks;
#endif
***************
*** 740,746 ****
--- 757,770 ----
lp = &sc->sc_label;
if (part >= lp->d_npartitions || lp->d_partitions[part].p_size == 0)
+ {
+ printf("rzopen: ENXIO on rz%d%c unit %d part %d\n",
+ unit, "abcdefg"[part], unit, part);
+ printf("# partions %d, size of %d = %d\n",
+ lp->d_npartitions, lp->d_partitions[part].p_size);
return (ENXIO);
+ }
+
/*
* Warn if a partition is opened that overlaps another
* already open, unless either is the `raw' partition
*** arch/pmax/pmax/conf.c.DIST Mon May 30 04:08:16 1994
--- arch/pmax/pmax/conf.c Mon Aug 15 23:43:46 1994
***************
*** 98,106 ****
struct bdevsw bdevsw[] =
{
! bdev_disk_init(NRZ,rz), /* 0: SCSI disk */
! bdev_swap_init(), /* 1: swap pseudo-device */
bdev_disk_init(NVN,vn), /* 2: vnode disk driver (swap to files) */
};
int nblkdev = sizeof (bdevsw) / sizeof (bdevsw[0]);
--- 98,127 ----
struct bdevsw bdevsw[] =
{
! bdev_notdef(), /* 0: SCSI disk */
! bdev_notdef(), /* 1: vax ht */
bdev_disk_init(NVN,vn), /* 2: vnode disk driver (swap to files) */
+ bdev_notdef(), /* 3: vax rk*/
+ bdev_swap_init(), /* 4: swap pseudo-device*/
+ bdev_notdef(), /* 5: vax tm */
+ bdev_notdef(), /* 6: vax ts */
+ bdev_notdef(), /* 7: vax mt */
+ bdev_notdef(), /* 8: vax tu */
+ bdev_notdef(), /* 9: ?? */
+ bdev_notdef(), /*10: ut */
+ bdev_notdef(), /*11: 11/730 idc */
+ bdev_notdef(), /*12: rx */
+ bdev_notdef(), /*13: uu */
+ bdev_notdef(), /*14: rl */
+ bdev_notdef(), /*15: tmscp */
+ bdev_notdef(), /*16: cs */
+ bdev_notdef(), /*17: md */
+ bdev_notdef(), /*18: st */
+ bdev_notdef(), /*19: sd */
+ bdev_notdef(), /*20: tz */
+ bdev_disk_init(NRZ,rz), /*21: SCSI disk */
+ bdev_notdef(), /*22: ?? */
+ bdev_notdef(), /*23: mscp */
};
int nblkdev = sizeof (bdevsw) / sizeof (bdevsw[0]);
***************
*** 269,280 ****
cdev_ctty_init(1,ctty), /* 1: controlling terminal */
cdev_mm_init(1,mm), /* 2: /dev/{null,mem,kmem,...} */
cdev_swap_init(1,sw), /* 3: /dev/drum (swap pseudo-device) */
! cdev_tty_init(NPTY,pts), /* 4: pseudo-tty slave */
! cdev_ptc_init(NPTY,ptc), /* 5: pseudo-tty master */
cdev_log_init(1,log), /* 6: /dev/klog */
cdev_fd_init(1,fd), /* 7: file descriptor pseudo-dev */
cdev_pm_init(NPM,pm), /* 8: frame buffer */
! cdev_disk_init(NRZ,rz), /* 9: SCSI disk */
cdev_tape_init(NTZ,tz), /* 10: SCSI tape */
cdev_vn_init(NVN,vn), /* 11: vnode disk */
cdev_bpf_init(NBPFILTER,bpf), /* 12: berkeley packet filter */
--- 290,301 ----
cdev_ctty_init(1,ctty), /* 1: controlling terminal */
cdev_mm_init(1,mm), /* 2: /dev/{null,mem,kmem,...} */
cdev_swap_init(1,sw), /* 3: /dev/drum (swap pseudo-device) */
! cdev_tty_init(NPTY,pts), /* 4: pseudo-tty slave */
! cdev_ptc_init(NPTY,ptc), /* 5: pseudo-tty master */
cdev_log_init(1,log), /* 6: /dev/klog */
cdev_fd_init(1,fd), /* 7: file descriptor pseudo-dev */
cdev_pm_init(NPM,pm), /* 8: frame buffer */
! cdev_notdef(), /* 9: old slot for SCSI disk */
cdev_tape_init(NTZ,tz), /* 10: SCSI tape */
cdev_vn_init(NVN,vn), /* 11: vnode disk */
cdev_bpf_init(NBPFILTER,bpf), /* 12: berkeley packet filter */
***************
*** 284,289 ****
--- 305,378 ----
cdev_tty_init(NDC,dc), /* 16: dc7085 serial interface */
cdev_tty_init(NSCC,scc), /* 17: scc 82530 serial interface */
cdev_pm_init(NMFB,mfb), /* 18: mono frame buffer */
+ cdev_notdef(), /* 19: mt */
+ cdev_ptc_init(NPTY,ptc), /* 20: pty master */
+ cdev_tty_init(NPTY,pts), /* 21: pty slave */
+ cdev_notdef(), /* 22: dmf */
+ cdev_notdef(), /* 23: vax 730 idc */
+ cdev_notdef(), /* 24: dn-11 */
+
+ /* 25-28 CSRG reserved to local sites, DEC sez: */
+ cdev_notdef(), /* 25: gpib */
+ cdev_notdef(), /* 26: lpa */
+ cdev_notdef(), /* 27: psi */
+ cdev_notdef(), /* 28: ib */
+ cdev_notdef(), /* 29: ad */
+ cdev_notdef(), /* 30: rx */
+ cdev_notdef(), /* 31: ik */
+ cdev_notdef(), /* 32: rl-11 */
+ cdev_notdef(), /* 33: dhu/dhv */
+ cdev_notdef(), /* 34: Vax Able dmz, mips dc */
+ cdev_notdef(), /* 35: qv */
+ cdev_notdef(), /* 36: tmscp */
+ cdev_notdef(), /* 37: vs */
+ cdev_notdef(), /* 38: vax cn console */
+ cdev_notdef(), /* 39: lta */
+ cdev_notdef(), /* 40: crl (Venus, aka 8600 aka 11/790 console RL02) */
+ cdev_notdef(), /* 41: cs */
+ cdev_notdef(), /* 42: qd, Qdss, vcb02 */
+ cdev_notdef(), /* 43: errlog (VMS-lookalike puke) */
+ cdev_notdef(), /* 44: dmb */
+ cdev_notdef(), /* 45: vax ss, mips scc */
+ cdev_notdef(), /* 46: st */
+ cdev_notdef(), /* 47: sd */
+ cdev_notdef(), /* 48: Ultrix /dev/trace */
+ cdev_notdef(), /* 49: sm (sysV shm?) */
+ cdev_notdef(), /* 50 sg */
+ cdev_notdef(), /* 51: sh tty */
+ cdev_notdef(), /* 52: its */
+ cdev_notdef(), /* 53: nodev */
+ cdev_notdef(), /* 54: nodev */
+ cdev_notdef(), /* 55: tz */
+ cdev_disk_init(NRZ,rz), /* 56: rz scsi, Ultrix gross coupling to PrestoServe driver */
+ cdev_notdef(), /* 57: nodev */
+ cdev_notdef(), /* 58: fc */
+ cdev_notdef(), /* 59: mscp, again Ultrix gross coupling to PrestoServe driver */
+ cdev_notdef(), /* 60: mscp, again Ultrix gross coupling to PrestoServe driver */
+ cdev_notdef(), /* 61: mscp, again Ultrix gross coupling to PrestoServe driver */
+ cdev_notdef(), /* 62: mscp, again Ultrix gross coupling to PrestoServe driver */
+ cdev_notdef(), /* 63: mscp, again Ultrix gross coupling to PrestoServe driver */
+ cdev_notdef(), /* 64: mscp, again Ultrix gross coupling to PrestoServe driver */
+ cdev_notdef(), /* 65: mscp, again Ultrix gross coupling to PrestoServe driver */
+ cdev_notdef(), /* 66: mscp, again Ultrix gross coupling to PrestoServe driver */
+ cdev_notdef(), /* 67: mscp, again Ultrix gross coupling to PrestoServe driver */
+ cdev_notdef(), /* 68: ld */
+ cdev_notdef(), /* 69: /dev/audit */
+ cdev_notdef(), /* 70: Mogul (nee' CMU) packetfilter */
+ cdev_notdef(), /* 71: xcons, mips Ultrix /dev/xcons virtual console nightmare */
+ cdev_notdef(), /* 72: xa */
+ cdev_notdef(), /* 73: utx */
+ cdev_notdef(), /* 74: sp */
+ cdev_notdef(), /* 75: pr Ultrix PrestoServe NVRAM pseudo-device control device */
+ cdev_notdef(), /* 76: ultrix disk shadowing */
+ cdev_notdef(), /* 77: ek */
+ cdev_notdef(), /* 78: msdup ? */
+ cdev_notdef(), /* 79: so-called multimedia audio A */
+ cdev_notdef(), /* 80: so-called multimedia audio B */
+ cdev_notdef(), /* 81: so-called multimedia video in */
+ cdev_notdef(), /* 82: so-called multimedia video out */
+ cdev_notdef(), /* 83: fd */
+ cdev_notdef(), /* 84: DTi */
};
int nchrdev = sizeof (cdevsw) / sizeof (cdevsw[0]);
***************
*** 348,354 ****
/* NOTREACHED */
}
! #define MAXDEV 19
static int chrtoblktbl[MAXDEV] = {
/* VCHR */ /* VBLK */
/* 0 */ NODEV,
--- 437,443 ----
/* NOTREACHED */
}
! #define MAXDEV 60
static int chrtoblktbl[MAXDEV] = {
/* VCHR */ /* VBLK */
/* 0 */ NODEV,
***************
*** 362,368 ****
/* 8 */ NODEV,
/* 9 */ 0,
/* 10 */ NODEV,
! /* 11 */ 2,
/* 12 */ NODEV,
/* 13 */ NODEV,
/* 14 */ NODEV,
--- 451,457 ----
/* 8 */ NODEV,
/* 9 */ 0,
/* 10 */ NODEV,
! /* 11 */ NODEV,
/* 12 */ NODEV,
/* 13 */ NODEV,
/* 14 */ NODEV,
***************
*** 370,375 ****
--- 459,505 ----
/* 16 */ NODEV,
/* 17 */ NODEV,
/* 18 */ NODEV,
+ /* 19 */ NODEV,
+ /* 20 */ NODEV,
+ /* 21 */ NODEV,
+ /* 22 */ NODEV,
+ /* 23 */ NODEV,
+ /* 24 */ NODEV,
+ /* 25 */ NODEV,
+ /* 26 */ NODEV,
+ /* 27 */ NODEV,
+ /* 28 */ NODEV,
+ /* 29 */ NODEV,
+ /* 30 */ NODEV,
+ /* 31 */ NODEV,
+ /* 32 */ NODEV,
+ /* 33 */ NODEV,
+ /* 34 */ NODEV,
+ /* 35 */ NODEV,
+ /* 36 */ NODEV,
+ /* 37 */ NODEV,
+ /* 38 */ NODEV,
+ /* 39 */ NODEV,
+ /* 40 */ NODEV,
+ /* 41 */ NODEV,
+ /* 42 */ NODEV,
+ /* 43 */ NODEV,
+ /* 44 */ NODEV,
+ /* 45 */ NODEV,
+ /* 46 */ NODEV,
+ /* 47 */ NODEV,
+ /* 48 */ NODEV,
+ /* 49 */ NODEV,
+ /* 50 */ NODEV,
+ /* 51 */ NODEV,
+ /* 52 */ NODEV,
+ /* 53 */ NODEV,
+ /* 54 */ NODEV,
+ /* 55 */ NODEV,
+ /* 56 */ 21,
+ /* 57 */ NODEV,
+ /* 58 */ NODEV,
+ /* 59 */ NODEV,
};
/*
* Routine to convert from character to block device number.
*** arch/pmax/pmax/swapgeneric.c.DIST Thu Jun 16 03:22:16 1994
--- arch/pmax/pmax/swapgeneric.c Mon Aug 15 20:15:50 1994
***************
*** 68,74 ****
char *gc_name;
dev_t gc_root;
} genericconf[] = {
! { (caddr_t)&rzdriver, "rz", makedev(0, 0), },
{ 0 },
};
--- 68,74 ----
char *gc_name;
dev_t gc_root;
} genericconf[] = {
! { (caddr_t)&rzdriver, "rz", makedev(21, 0), },
{ 0 },
};
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