by diederic on Tue Aug 21, 2012 6:43 pm
Using LM-13 on a iMac
I downloaded an*.iso file and burt this to a dvd. Wanted 'live boot' from image, no luck, dould eject dvd, said something about like 'null disk... '. Re installed LM-13, no problem, after install disk was ejected.
I wanted to get a file from a backup disk, no luck. opening the window 'computer' showed the cd-drive with a blank cd (I knew it contained data). I ve spebt too much time trying to solve this, following advice of others.
I've copied some file and search results:
1. /etc/fstab
# /etc/fstab: static file system information.
#
# Use 'blkid' to print the universally unique identifier for a
# device; this may be used with UUID= as a more robust way to name devices
# that works even if disks are added and removed. See fstab(5).
#
# <file system> <mount point> <type> <options> <dump> <pass>
proc /proc proc nodev,noexec,nosuid 0 0
# / was on /dev/sda4 during installation
UUID=836622b5-7c1e-4668-b6ce-2f9bd49daa60 / ext4 errors=remount-ro 0 1
# /home was on /dev/sda6 during installation
UUID=3eabb6fa-c82f-4c6f-b812-394a8cd6b3ed /home ext4 defaults 0 2
# /media/extHD was on /dev/sdb1 during installation
UUID=463182bc-0f88-457a-8711-3c9ee2d693e0 /media/extHD ext4 defaults 0 2
# swap was on /dev/sda5 during installation
UUID=c2c989cd-033f-44ec-8793-d5f141d47503 none swap sw 0 0
#mount cdrom
/dev/sg0 /media/cdrom iso9660 user, noauto 0 0
2.the mount comand:
diederic@LM-iMac ~ $ mount /media/cdrom
[mntent]: line 18 in /etc/fstab is bad
mount: can't find /media/cdrom in /etc/fstab or /etc/mtab
diederic@LM-iMac ~ $
It makes no difference to the outcome of the mount command if etc/fstab has /dv/sr0 or /dev/sg0 (line 18). MOunting as rrot makes no difference.
3. Outcome lshw command
diederic@LM-iMac ~ $ sudo lshw -c disk
*-cdrom
description: DVD writer
product: DVD RW AD-5630A
vendor: OPTIARC
physical id: 0.0.0
bus info: scsi@0:0.0.0
logical name: /dev/sr0
version: 1AHN
serial: [
capabilities: removable audio cd-r cd-rw dvd dvd-r
configuration: ansiversion=5 status=ready
*-medium
physical id: 0
logical name: /dev/sr0
*-disk
description: ATA Disk
product: WDC WD3200AAJS-4
vendor: Western Digital
physical id: 0.0.0
bus info: scsi@2:0.0.0
logical name: /dev/sda
version: 58.0
serial: WD-WCARW7044146
size: 298GiB (320GB)
capabilities: partitioned partitioned:dos
configuration: ansiversion=5
*-disk
description: SCSI Disk
physical id: 0.0.0
bus info: scsi@4:0.0.0
logical name: /dev/sdb
size: 149GiB (160GB)
capabilities: partitioned partitioned:dos
configuration: signature=a4b57300
In the past I've never had this problem.
Some succinct advise would be much appreciated.
Diederic