Re: [gentoo-user] Help with udev (was joliet fs)
On Friday 08 December 2006 06:07, Richard Fish wrote: On 12/7/06, Mick [EMAIL PROTECTED] wrote: Then I tried mounting a data DVD but all I get is: $ mount /mnt/cdrom mount: No medium found Is this the same DVD you wrote as before? Can you try writing a different DVD, or a different brand of media. Just write some random small files to it and try that. I've tried both the previous DVD+RW with the large 3G avi file on it and another DVD+RW (same brand) with file backups from a NTFS drive. It couldn't read them. Then I tried reading a CD, CDRW and DVD+R. No problem with any of them, despite the fact that the DVD+R had a c. 4G partition tar.gz on it. The problem seems to be with the DVD+RWs. I'm thinking one of two possibilities here: 1. (unlikely) the 3GB file is confusing things, possibly only files up to 2GB are supported. Note that DVD movies usually split things up into 1GB chunks, probably for these kinds of issues. Probably not true if it can read the 4G tar file on a DVD+R that I mention above. 2. (likely) your DVD ROM drive is not capable of reading some or all writeable media. Just because it can read a printed DVD, doesn't mean it can read a DVD+R, DVD-R, DVD-RW, DVD+RW, or DVD-R-DL, etc... So you might try different types and different brands of media to see if you can find something it will read. I have a horrible thought that you are right. This is the device: *-cdrom description: DVD reader product: Compaq DVD-ROM DRN-8080B physical id: 0 bus info: [EMAIL PROTECTED] logical name: /dev/hdc version: 2.18 serial: 2001/08/14 capabilities: packet atapi cdrom removable nonmagnetic dma lba iordy audio dvd K3B shows that it Reads DVD: Yes and it does not write on any media. I believe that it is a Compaq branded LG DVD-ROM. Is there anywhere where I can see what types of media it can read, or is this a trial error affair? -- Regards, Mick pgp7Ieb2fVJPq.pgp Description: PGP signature
Re: [gentoo-user] Help with udev (was joliet fs)
On 12/8/06, Mick [EMAIL PROTECTED] wrote: K3B shows that it Reads DVD: Yes and it does not write on any media. I believe that it is a Compaq branded LG DVD-ROM. Is there anywhere where I can see what types of media it can read, or is this a trial error affair? According to: http://support.dell.com/support/edocs/storage/lg8080b/en/specs.htm It should be able to read -R and -RW, but not +R or +RW. Of course you said it read a +R, so I don't know that I completely trust this info. -Richard -- gentoo-user@gentoo.org mailing list
Re: [gentoo-user] Help with udev (was joliet fs)
On 08 December 2006 16:36, Richard Fish wrote: On 12/8/06, Mick [EMAIL PROTECTED] wrote: K3B shows that it Reads DVD: Yes and it does not write on any media. I believe that it is a Compaq branded LG DVD-ROM. Is there anywhere where I can see what types of media it can read, or is this a trial error affair? According to: http://support.dell.com/support/edocs/storage/lg8080b/en/specs.htm It should be able to read -R and -RW, but not +R or +RW. Of course you said it read a +R, so I don't know that I completely trust this info. Start k3b. Settings - Configure k3b - Devices. It should tell what your device is capable of. Uwe -- Mark Twain: I rather decline two drinks than a German adjective. http://www.SysEx.com.na -- gentoo-user@gentoo.org mailing list
Re: [gentoo-user] Help with udev (was joliet fs)
On Friday 08 December 2006 15:42, Uwe Thiem wrote: On 08 December 2006 16:36, Richard Fish wrote: On 12/8/06, Mick [EMAIL PROTECTED] wrote: K3B shows that it Reads DVD: Yes and it does not write on any media. I believe that it is a Compaq branded LG DVD-ROM. Is there anywhere where I can see what types of media it can read, or is this a trial error affair? According to: http://support.dell.com/support/edocs/storage/lg8080b/en/specs.htm It should be able to read -R and -RW, but not +R or +RW. Of course you said it read a +R, so I don't know that I completely trust this info. Start k3b. Settings - Configure k3b - Devices. It should tell what your device is capable of. Yes, just like the first paragraph in my previous post above. Is there a command line facility that interrogates the device and shows definitely what it can and cannot read? All that K3B shows is that it can read DVD. -- Regards, Mick pgpQsgBQV5Mbc.pgp Description: PGP signature
Re: [gentoo-user] Help with udev (was joliet fs)
On 12/7/06, Mick [EMAIL PROTECTED] wrote: As soon as I run udevstart (or at boot) I get this error about a dozen times: Dec 7 20:45:29 lappy udevd[2187]: lookup_group: specified group 'cdrw' unknown That's because the cdrw group is needed by udev just-in-case you have a cdrw drive. I groupadded cdrw to make sure that I get no more complaints from udev. Then I tried mounting a data DVD but all I get is: $ mount /mnt/cdrom mount: No medium found Is this the same DVD you wrote as before? Can you try writing a different DVD, or a different brand of media. Just write some random small files to it and try that. I'm thinking one of two possibilities here: 1. (unlikely) the 3GB file is confusing things, possibly only files up to 2GB are supported. Note that DVD movies usually split things up into 1GB chunks, probably for these kinds of issues. 2. (likely) your DVD ROM drive is not capable of reading some or all writeable media. Just because it can read a printed DVD, doesn't mean it can read a DVD+R, DVD-R, DVD-RW, DVD+RW, or DVD-R-DL, etc... So you might try different types and different brands of media to see if you can find something it will read. -Richard -- gentoo-user@gentoo.org mailing list
