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Old 13th August 2010
rtwingfield rtwingfield is offline
Real Name: Ron Wingfield
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Default mkisofs and cdrecord with tar

Note that the tar command componet is comm'ed-out;
-dummy is specified to turn off the laser (to avoid wasting a CD);
and -dd is specifed to provide more diagnostics.


I'm having problems with the device designation. Suggestions anyone?


The backup_whatever script:

#tar -c /www/vhosts/website.org | \
mkisofs -stream-media-size 333000 | \
cdrecord -dummy -dd dev=/dev/acd0 -dao tsize=333000s -


Execution failure:

# backup_whatever
dev: '/dev/acd0' speed: -1 fs: -1 driveropts '(NULL POINTER)'
Cdrecord-Clone 2.01 (i386-unknown-freebsd4.8) Copyright (C) 1995-2004 Jörg Schilling
TOC Type: 1 = CD-ROM
fs: 4194304 buflen: 4198400
cdrecord: shared memory segment attached at: 28156000 size 4198400
buf: 28156000 bufend: 28557000, buflen: 4198400
buf: 28156000 bufend: 28557000, buflen: 4198400 (align 0)
scsidev: '/dev/acd0'
devname: '/dev/acd0'
scsibus: -2 target: -2 lun: -2
scg__open(/dev/acd0) -2,-2,-2
cdrecord: Invalid argument. Open by 'devname' not supported on this OS. Cannot open SCSI driver.
cdrecord: For possible targets try 'cdrecord -scanbus'.
cdrecord: For possible transport specifiers try 'cdrecord dev=help'.
#

. . .so we run with -scanbus:

# cdrecord -scanbus
Cdrecord-Clone 2.01 (i386-unknown-freebsd4.8) Copyright (C) 1995-2004 Jörg Schilling
cdrecord: Device not configured. Open of /dev/xpt0 failed. Cannot open SCSI driver.
cdrecord: For possible targets try 'cdrecord -scanbus'.
cdrecord: For possible transport specifiers try 'cdrecord dev=help'.
#

. . .don't know where /dev/xpt0 came from !!!


Well . . .attempt with dev=scsibus,target,lun scenario (e.g., dev=0,1,0)


#tar -c /www/vhosts/website.org | \
mkisofs -stream-media-size 333000 | \
cdrecord -dummy -dd dev=0,1,0 -dao tsize=333000s -

# backup_whatever
dev: '0,1,0' speed: -1 fs: -1 driveropts '(NULL POINTER)'
Cdrecord-Clone 2.01 (i386-unknown-freebsd4.8) Copyright (C) 1995-2004 Jörg Schilling
TOC Type: 1 = CD-ROM
fs: 4194304 buflen: 4198400
cdrecord: shared memory segment attached at: 28156000 size 4198400
buf: 28156000 bufend: 28557000, buflen: 4198400
buf: 28156000 bufend: 28557000, buflen: 4198400 (align 0)
scsidev: '0,1,0'
scsibus: 0 target: 1 lun: 0
scg__open() 0,1,0
cdrecord: Device not configured. Cannot open SCSI driver.
cdrecord: For possible targets try 'cdrecord -scanbus'.
cdrecord: For possible transport specifiers try 'cdrecord dev=help'.
archaxis #

Last edited by rtwingfield; 13th August 2010 at 11:28 AM. Reason: . . .grammar & spelling corrections.
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