Arch Linux

57lvii

Member

From: China

Registered: 2010-04-23

Posts: 38

when I mount the DVD-ROM the os crashed

Hi guys!

when I mount DVD-ROM to some files from xterm, the systerm never responsed!

I used this command:

    sudo mount -t iso9660 /dev/cdrom /mnt/cd

I search some info from google ,some guys say these info may help ,but I don't understand why it cab be crashed
when I mount the CD from DVD-ROM.

    /etc/fstab
    /dev/scd0 /media/cdrom0 udf,iso9660 user,noauto 0 0

    lrwxrwxrwx 1 root root 3 05-22 19:54 /dev/dvd -> sr0

    dmesg |grep hd
    [ 9.126848] hda_codec: Unknown model for ALC883, trying auto-probe from BIOS.

thanks for your help!

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Life is fantastic, we all pray it gives us the plain comfort life, do not tempt us.
But only in the face of difficult choices, we face the real self, we define ourselves !

Leonid.I

Member

From: Aethyr

Registered: 2009-03-22

Posts: 999

Re: when I mount the DVD-ROM the os crashed

Can you run mount in verbose mode? Also, after you sudo mount unsuccessfully, there should be some logs in /var/log/messages.log.

If you have HAL and run a DE, there is no need to spam your fstab with cd/dvd entries -- these devices should be automounted. You can also use pmount, not to exec sudo everytime.

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Arch Linux is more than just GNU/Linux -- it's an adventure
pkill -9 systemd

57lvii

Member

From: China

Registered: 2010-04-23

Posts: 38

Re: when I mount the DVD-ROM the os crashed

I just try again , this time i run the command in the tty2

mount -t iso9660 /dev/sr0 /media/cdrom0/

and the command stay for a while , and then no response again.

this afternoon I try this command in Ubuntu on my friend's mechine it work successfully!

my DVD-ROM work fine on XP ,the CD is good!

I only find this in the log file

May 23 19:56:49 king sudo:     king : TTY=tty2 ; PWD=/media/cdrom0 ; USER=root ; COMMAND=/bin/mount -t iso9660 /dev/sr0 /media/cdrom0/

which log file can I find more useful messages?

---

Life is fantastic, we all pray it gives us the plain comfort life, do not tempt us.
But only in the face of difficult choices, we face the real self, we define ourselves !

Spacenick

Member

From: Germany

Registered: 2010-04-02

Posts: 168

Re: when I mount the DVD-ROM the os crashed

try /var/log/everything.log

Leonid.I

Member

From: Aethyr

Registered: 2009-03-22

Posts: 999

Re: when I mount the DVD-ROM the os crashed

OK, what I meant by "verbose", is:
mount -v -t auto /dev/cdrom /media/cd
Also, try doing it without sudo, but in the root console.

BTW, are both Ubuntu and Arch the same architecture (x86, x86_64)? Please post the output from
cat /var/log/dmesg.log | grep -i cd-rom
on both distros, to see if they use the same driver, because perhaps, it is a kernel issue (I assume Arch has a newer kernel than Ubuntu).

EDIT: Using mount -v with --fake flag can also be useful...

Last edited by Leonid.I (2010-05-23 15:18:12)

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Arch Linux is more than just GNU/Linux -- it's an adventure
pkill -9 systemd