Date: Mon, 15 Mar 1999 14:50:56 -0500 (EST) From: "Crist J. Clark" <cjc@cc942873-a.ewndsr1.nj.home.com> To: sriva@alice.it (Stefano Riva) Cc: cjclark@home.com, freebsd-questions@FreeBSD.ORG Subject: Re: Bootable CDs Message-ID: <199903151950.OAA01016@cc942873-a.ewndsr1.nj.home.com> In-Reply-To: <3.0.5.32.19990315192302.00b01950@relay.alice.it> from Stefano Riva at "Mar 15, 99 07:23:02 pm"
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Stefano Riva wrote,
> At 11.34 15/03/99 -0500, you wrote:
> >I am trying to create a custom, bootable CD of 3.1 for installing
> >on some systems that cannot be connected to the Internet. I know there
>
> Do a "man mkisofs". There are two options ("-b" and "-c") usable when
> making El Torrito bootable CDs.
That's what I did. Specifically, '-b floppies/boot.flp -c
floppies/boot.catalog.'
> >I did try to just write it. I used cdrecord on device
> >'dev=/dev/rcd0.ctl' but the command failed after just a few
>
> If I understand correctly, you're trying to put the device name after the
> "dev" option. This is wrong.
I can't seem to locate the reference now, but I saw something that
indicated that for FreeBSD, you need to (or could) use the form
mentioned here,
If the name of the device node that has been
specified on such a system referres to exactly one SCSI
device, a shorthand in the form dev= devicename:@ or dev=
devicename:@,lun may be used instead of dev= device-
name:scsibus,target,lun.
> If you haven't custom configured cdrecord, do a "cdrecord -scanbus" to
> see if the unit is recognized.
# cdrecord -scanbus
Cdrecord release 1.6.1 Copyright (C) 1995-1998 Jörg Schilling
cdrecord: No such file or directory. Cannot open SCSI driver.
# dmesg | grep ^cd0
cd0(ahc0:4:0): CD-ROM can't get the size
# cdrecord dev=0,4,0 -inq
Cdrecord release 1.6.1 Copyright (C) 1995-1998 Jörg Schilling
scsidev: '0,4,0'
scsibus: 0 target: 4 lun: 0
cdrecord: No such file or directory. Cannot open SCSI driver.
But,
# cdrecord dev=/dev/rcd0.ctl -inq
Cdrecord release 1.6.1 Copyright (C) 1995-1998 Jörg Schilling
scsidev: '/dev/rcd0.ctl'
devname: '/dev/rcd0.ctl'
scsibus: -2 target: -2 lun: -2
Device type : Removable CD-ROM
Version : 2
Response Format: 2
Capabilities : SYNC LINKED
Vendor_info : 'SAF '
Identifikation : 'CD-R8020 '
Revision : '1.10'
Device seems to be: Generic mmc CD-R.
> Create a link to the proper device with "ln
> -s /dev/rcdX.ctl /dev/scgx" where X is the unit number, probably 0 or 1 if
> you have a reader connected to the same machine. By default cdrecord uses
> /dev/scgx.
OK, let me try a '-dummy' run. First,
# ln -s /dev/rcd0.ctl /dev/scg0
> To burn a CD, place "BUS,SCSI_ID,LUN" after the dev option; for example,
> if your CD writer is on SCSI bus 0, ID 4, LUN 0, the option should be
> "dev=0,4,0". In this case, the following is a sample command (1x writing):
>
> cdrecord -v -fs=0 speed=1 dev=0,4,0 /myisoimage
I know the "0,4,0" doesn't work for me. I'll try what I did before for
now, and give you all the exact output... Oops, first try failed. I
need to go put in a disc... Now, I get,
# cdrecord speed=4 -v -data -dummy dev=/dev/rcd0.ctl boot.cdrom
Cdrecord release 1.6.1 Copyright (C) 1995-1998 Jörg Schilling
TOC Type: 1 = CD-ROM
scsidev: '/dev/rcd0.ctl'
devname: '/dev/rcd0.ctl'
scsibus: -2 target: -2 lun: -2
atapi: 0
Device type : Removable CD-ROM
Version : 2
Response Format: 2
Capabilities : SYNC LINKED
Vendor_info : 'SAF '
Identifikation : 'CD-R8020 '
Revision : '1.10'
Device seems to be: Generic mmc CD-R.
Using generic SCSI-3/mmc CD-R driver (mmc_cdr).
Driver flags : SWABAUDIO
Track 01: data 238 MB
Total size: 273 MB (27:07.42) = 122057 sectors
Lout start: 274 MB (27:09/32) = 122057 sectors
Current Secsize: 2048
ATIP info from disk:
Indicated writing power: 4
Is not unrestricted
Is not erasable
ATIP start of lead in: -11250 (97:32/00)
ATIP start of lead out: 333975 (74:15/00)
Disk type: Cyanine, AZO or similar
Manufacturer: TDK Corporation
Blocks total: 333975 Blocks current: 334125 Blocks remaining: 212068
RBlocks total: 345736 RBlocks current: 345886 RBlocks remaining: 223829
Starting to write CD/DVD at speed 4 in dummy mode for single session.
Last chance to quit, starting dummy write in 1 seconds.
Waiting for reader process to fill input-buffer ... input-buffer ready.
Starting new track at sector: 0
cdrecord: Input/output error. write_g1: scsi sendcmd: retryable error
CDB: 2A 00 00 00 84 6C 00 00 1E 00
status: 0x2 (CHECK CONDITION)
Sense Bytes: 70 00 04 00 00 00 00 0A 00 00 00 00 09 01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
Sense Key: 0x4 Hardware Error, Segment 0
Sense Code: 0x09 Qual 0x01 (tracking servo failure) Fru 0x0
Sense flags: Blk 0 (not valid)
resid: 61440
cmd finished after 2.669s timeout 40s
write track data: error after 69427200 bytes
Sense Bytes: 70 00 00 00 00 00 00 0A 00 00 00 00 00 00 00 00 00 00
Writing time: 120.551s
Fixating...
WARNING: Some drives don't like fixation in dummy mode.
cdrecord: Input/output error. close track/session: scsi sendcmd: retryable error
CDB: 5B 00 02 00 00 00 00 00 00 00
status: 0x2 (CHECK CONDITION)
Sense Bytes: 70 00 04 00 00 00 00 0A 00 00 00 00 09 01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
Sense Key: 0x4 Hardware Error, Segment 0
Sense Code: 0x09 Qual 0x01 (tracking servo failure) Fru 0x0
Sense flags: Blk 0 (not valid)
cmd finished after 70.777s timeout 480s
Fixating time: 70.779s
cdrecord: fifo had 1198 puts and 1131 gets.
cdrecord: fifo was 0 times empty and 1110 times full, min fill was 94%.
CD-Rs are cheap, so I'll give it a try...
And lo' and behold... I can mount the CD and everything seems to be
there. So, are those errors I got harmless? I got them both in the
'-dummy' attempt and the real thing. I guess the symlink was all that
I was missing.
Now just to check if it boots.
--
Crist J. Clark cjclark@home.com
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