Re: [Q] boot on RS/6000

Hi,

>I installed NetBSD/prep on my IBM RS/6000 7248-120.
>Althought the installation has been succesfully completed,
>I am not able to get my machine to boot from the SCSI
>hard disk: it looks like no bootcode has been installed.
>
>I made an attempt doing fdisk -c with the `boot' file
>I found in /usr/mdec, but I get a `bootcode too big'
>message.
>
>Can anyone help? Thanks.

Please check fdisk PReP partition and boot-code (bootable disk image,
boot or boot_com0 program) size.
fdisk PReP partition size must be larger than boot-code size.

Regards,
--
NONAKA Kimihiro
E-mail: [email protected]

-- My installboot log
> root@natsumi[/cdrom/installation/floppy]# ll
> total 11164
> dr-xr-xr-x  2 root  wheel     2048 May  4 14:30 ./
> dr-xr-xr-x  3 root  wheel     2048 May  4 15:06 ../
> -r--r--r--  1 root  wheel      208 May  4 14:30 BSDSUM
> -r--r--r--  1 root  wheel      270 May  4 14:30 CKSUM
> -r--r--r--  1 root  wheel      448 May  4 14:30 MD5
> -r--r--r--  1 root  wheel      204 May  4 14:30 SYSVSUM
> -r--r--r--  1 root  wheel      637 May  4 15:08 TRANS.TBL
> -r--r--r--  1 root  wheel  1443694 May  4 05:03 generic.fs
> -r--r--r--  1 root  wheel  1403748 May  4 05:03 generic.fs.gz
> -r--r--r--  1 root  wheel  1431522 May  4 05:03 generic_com0.fs
                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ boot-code
> -r--r--r--  1 root  wheel  1399503 May  4 05:03 generic_com0.fs.gz
> -r--r--r--  1 root  wheel  1462195 May  4 05:03 sysinst.fs
> -r--r--r--  1 root  wheel  1421572 May  4 05:03 sysinst.fs.gz
> -r--r--r--  1 root  wheel  1450023 May  4 05:03 sysinst_com0.fs
> -r--r--r--  1 root  wheel  1417326 May  4 05:03 sysinst_com0.fs.gz
> root@natsumi[/cdrom/installation/floppy]# fdisk wd0
> Disk: /dev/rwd0c
> NetBSD disklabel disk geometry:
> cylinders: 16383 heads: 16 sectors/track: 63 (1008 sectors/cylinder)
> 
> BIOS disk geometry:
> cylinders: 16383 heads: 16 sectors/track: 63 (1008 sectors/cylinder)
> 
> Partition table:
> 0: sysid 65 (Linux/MINIX (sharing disk with DRDOS) or Personal RISC boot)
>     start 63, size 10017 (4 MB), flag 0x80
      ^^^^^^^^^^^^^^^^^^^^^^^^^^^ fdisk PReP partition
>         beg: cylinder    0, head   1, sector  0
>         end: cylinder    9, head  15, sector 63
> 1: sysid 169 (NetBSD)
>     start 10143, size 16503921 (8058 MB), flag 0x0
>         beg: cylinder   10, head   1, sector  0
>         end: cylinder 1023, head 255, sector 63
> 2: <UNUSED>
> 3: <UNUSED>
> root@natsumi[/cdrom/installation/floppy]# disklabel wd0
> # /dev/rwd0c:
> type: ESDI
> disk: dtta350840
> label: 
> flags:
> bytes/sector: 512
> sectors/track: 63
> tracks/cylinder: 16
> sectors/cylinder: 1008
> cylinders: 16383
> total sectors: 16514064
> rpm: 3600
> interleave: 1
> trackskew: 0
> cylinderskew: 0
> headswitch: 0           # microseconds
> track-to-track seek: 0  # microseconds
> drivedata: 0 
> 
> 7 partitions:
> #        size    offset     fstype  [fsize bsize cpg/sgs]
>  a:    129969     10143     4.2BSD   1024  8192    90   # (Cyl.   10*- 138)
>  b:    393120    140112       swap                      # (Cyl.  139 - 528)
>  c:  16503921     10143     unused      0     0         # (Cyl.   10*- 16382)
>  d:     10017        63     unused      0     0         # (Cyl.    0*- 9)
>  e:    655200    533232     4.2BSD   1024  8192    87   # (Cyl.  529 - 1178)
>  f:   2096640   1188432     4.2BSD   1024  8192    86   # (Cyl. 1179 - 3258)
>  g:  13228992   3285072     4.2BSD   1024  8192    86   # (Cyl. 3259 - 16382)
> root@natsumi[/cdrom/installation/floppy]# /usr/mdec/installboot -v /cdrom/installation/floppy/generic_com0.fs /dev/rwd0c
> boot: /cdrom/installation/floppy/generic_com0.fs
> dev: /dev/rwd0c
> Bootable image: PReP partition: start = 0, size = 2879
> image size = 1430498
               ^^^^^^^ bytes
> PReP partition: start = 63, size = 10017
                  ^^^^^^^^^^^^^^^^^^^^^^^^ sectors (= 5096448bytes)
--