Wednesday, April 1, 2026

Sun Solaris 5.6 on a SPARC 20 with a ZuluSCSI

 What I did to create the disk:

Create a 36GB disk on Windows:

fsutil file createnew HD3_Solaris_8_512.hda 38654705664

Cylinders: 24,622
Alt cyl: 2
Heads: 27
Sectors/Track: 107
Sector Size: 512 bytes

# format
Searching for disks…WARNING: /iommu@0,10000000/sbus@0,10001000/espdma@5,8400000/esp@5,8800000/sd@0,0 (sd0):
corrupt label – wrong magic number

AVAILABLE DISK SELECTIONS:
0. c0t0d0
/iommu@0,10000000/sbus@0,10001000/espdma@5,8400000/esp@5,8800000/sd@0,0
Specify disk (enter its number): 0

AVAILABLE DRIVE TYPES:
0. Auto configure
1. Quantum ProDrive 80S
2. Quantum ProDrive 105S
3. CDC Wren IV 94171-344
4. SUN0104
5. SUN0207
6. SUN0327
7. SUN0340
8. SUN0424
9. SUN0535
10. SUN0669
11. SUN1.0G
12. SUN1.05
13. SUN1.3G
14. SUN2.1G
15. SUN2.9G
16. Zip 100
17. Zip 250
18. other
Specify disk type (enter its number): 18

Enter number of data cylinders: 24620
Enter number of alternate cylinders[2]:
Enter number of physical cylinders[24622]:
Enter number of heads: 27
Enter physical number of heads[default]:
Enter number of data sectors/track: 107
Enter number of physical sectors/track[default]:
Enter rpm of drive[3600]:
Enter format time[default]:
Enter cylinder skew[default]:
Enter track skew[default]:
Enter tracks per zone[default]:
Enter alternate tracks[default]:
Enter alternate sectors[default]:
Enter cache control[default]:
Enter prefetch threshold[default]:
Enter minimum prefetch[default]:
Enter maximum prefetch[default]:
Enter disk type name (remember quotes): "SUN36G"

selecting c0t0d0
[disk formatted]

FORMAT MENU:
disk – select a disk
type – select (define) a disk type
partition – select (define) a partition table
current – describe the current disk
format – format and analyze the disk
repair – repair a defective sector
label – write label to the disk
analyze – surface analysis
defect – defect list management
backup – search for backup labels
verify – read and display labels
save – save new disk/partition definitions
inquiry – show vendor, product and revision
volname – set 8-character volume name
! – execute , then return
quit
format> label

Vendor:   ZULUSCSI
Product:  ZS36GB
Revision: 1.0

Current Disk = c0t3d0
<SUN36G cyl 24620 alt 2 hd 27 sec 107>
/iommu@f,e0000000/sbus@f,e0001000/espdma@f,400000/esp@f,800000/sd@3,0

Current partition table (original):
Total disk cylinders available: 24620 + 2 (reserved cylinders)

Part      Tag    Flag     Cylinders         Size            Blocks
  0       root    wm     363 -  2489        2.93GB    (2127/0/0)   6144903
  1       swap    wu       0 -   362      512.06MB    (363/0/0)    1048707
  2     backup    wm       0 - 24619       33.92GB    (24620/0/0) 71127180
  3        usr    wm    2490 -  6034        4.88GB    (3545/0/0)  10241505
  4        var    wm    6035 -  9579        4.88GB    (3545/0/0)  10241505
  5 unassigned    wm    9580 - 13124        4.88GB    (3545/0/0)  10241505
  6 unassigned    wm       0                0         (0/0/0)            0
  7       home    wm   13125 - 24619       15.84GB    (11495/0/0) 33209055

root@wedge:/export/packages$ /usr/local/bin/df -h
Filesystem            Size  Used Avail Use% Mounted on
/dev/dsk/c0t3d0s0     2.9G   21M  2.7G   1% /
/dev/dsk/c0t3d0s3     4.8G  1.1G  3.7G  23% /usr
/dev/dsk/c0t3d0s4     4.8G  126M  4.6G   3% /var
swap                  550M  8.0k  549M   1% /var/run
/dev/dsk/c0t3d0s7      16G  968M   14G   7% /export
/dev/dsk/c0t3d0s5     4.8G  2.0M  4.7G   1% /opt
swap                  550M   12k  549M   1% /tmp