Re: xbd and large sectors

[Christian Kujau <lists%nerdbynature.de@localhost>]

On Mon, 24 Jul 2023, Manuel Bouyer wrote:
> updated diff attached, and I also updated the binaries on asim.lip6.fr

OK, that booted...but now xbd0 is 1 GB in size, instead of 8 GB:

[   1.2302948] xbd0: 1024 MB, 4096 bytes/sect x 16777216 sectors
[   1.2302948] xbd0: backend features 0xc<PERSISTENT,INDIRECT>
[   1.2302948] xbd0d: error reading fsbn 0 of 0-7 (xbd0 bn 0; cn 0 tn 0 sn 0)
[   1.2302948] xbd0: dos partition I/O error
[   1.2401814] xbd0d: error reading fsbn 0 of 0-31 (xbd0 bn 0; cn 0 tn 0 sn 0)

# disklabel xbd0                                                                
[  26.4407769] xbd0d: error reading fsbn 0 of 0-7 (xbd0 bn 0; cn 0 tn 0 sn 0)
[  26.4407769] xbd0: dos partition I/O error
# /dev/rxbd0:
type: ESDI
disk: xbd0
label: default label
flags:
bytes/sector: 4096
sectors/track: 256
tracks/cylinder: 1
sectors/cylinder: 256
cylinders: 8192
total sectors: 2097152
rpm: 3600
interleave: 1
trackskew: 0
cylinderskew: 0
headswitch: 0           # microseconds
track-to-track seek: 0  # microseconds
drivedata: 0

4 partitions:
#        size    offset     fstype [fsize bsize cpg/sgs]
 a:   2097152         0     4.2BSD      0     0     0  # (Cyl.      0 -   8191)
 d:   2097152         0     4.2BSD      0     0     0  # (Cyl.      0 -   8191)
disklabel: boot block size 0
disklabel: super block size 0
disklabel: partitions a and d overlap


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