Re: Issue with dvd/cdrom drive

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>
> >
> > [root@darkness ~]# ls -al /dev/sr*
> > ls: cannot access /dev/sr*: No such file or directory
> > [root@darkness ~]# ls /dev/s*
> > /dev/sda   /dev/sda3  /dev/sdb1  /dev/sg0       /dev/stderr
> > /dev/sda1  /dev/sda4  /dev/sdb2  /dev/sg1       /dev/stdin
> > /dev/sda2  /dev/sdb   /dev/sdb3  /dev/snapshot  /dev/stdout
> > [root@darkness ~]# hwinfo --cdrom
> > [root@darkness ~]#
> >
>
> Presumably it is a SATA CD/DVD - if so you need to go through the
> output of dmesg to see if it is detected on one of the SATA lines -
> possibly grepping for 'ata' should show something.  If it's not even
> seeing it on a SATA line, then there is something strange with the
> hardware or bios configuration.
>

windows 10 is listing device as;
PLDS DVD-RW DU8A6SH

google search is showing spec is SATA (the cdrom can also be swapped
out/replaced with a second SATA HDD)

this is what I see in dmesg;

[    1.835374] libata version 3.00 loaded.
[    1.879093] ata1: DUMMY
[    1.879096] ata2: DUMMY
[    1.879099] ata3: SATA max UDMA/133 abar m524288@0xc5700000 port
0xc5700200 irq 136
[    1.879102] ata4: SATA max UDMA/133 abar m524288@0xc5700000 port
0xc5700280 irq 137
[    2.183682] ata4: SATA link up 1.5 Gbps (SStatus 113 SControl 300)
[    2.183825] ata3: SATA link up 6.0 Gbps (SStatus 133 SControl 300)
[    7.183893] ata3.00: qc timeout (cmd 0xec)
[    7.183908] ata3.00: failed to IDENTIFY (I/O error, err_mask=0x4)
[    7.183960] ata4.00: qc timeout (cmd 0xa1)
[    7.183974] ata4.00: failed to IDENTIFY (I/O error, err_mask=0x4)
[    7.488894] ata3: SATA link up 6.0 Gbps (SStatus 133 SControl 300)
[    7.488931] ata4: SATA link up 1.5 Gbps (SStatus 113 SControl 300)
[   17.488919] ata3.00: qc timeout (cmd 0xec)
[   17.488934] ata3.00: failed to IDENTIFY (I/O error, err_mask=0x4)
[   17.488942] ata3: limiting SATA link speed to 3.0 Gbps
[   17.488964] ata4.00: qc timeout (cmd 0xa1)
[   17.488979] ata4.00: failed to IDENTIFY (I/O error, err_mask=0x4)
[   17.793923] ata3: SATA link up 3.0 Gbps (SStatus 123 SControl 320)
[   17.794894] ata4: SATA link up 1.5 Gbps (SStatus 113 SControl 300)
[   47.794008] ata3.00: qc timeout (cmd 0xec)
[   47.794023] ata3.00: failed to IDENTIFY (I/O error, err_mask=0x4)
[   47.794880] ata4.00: qc timeout (cmd 0xa1)
[   47.794897] ata4.00: failed to IDENTIFY (I/O error, err_mask=0x4)
[   48.099012] ata3: SATA link up 3.0 Gbps (SStatus 123 SControl 320)
[   48.099884] ata4: SATA link up 1.5 Gbps (SStatus 113 SControl 300)

I'm seeing this from dmidecode; (I'll reboot and look over the BIOS
settings)
Last I remember being in the BIOS, I don't recall seeing anything that may
be an issue.

BIOS Information
        Vendor: LENOVO
        Version: N1DETA4W (2.30 )
        Release Date: 05/09/2019
        Address: 0xE0000
        Runtime Size: 128 kB
        ROM Size: 16 MB
        Characteristics:
                PCI is supported
                PNP is supported
                BIOS is upgradeable
                BIOS shadowing is allowed
                Boot from CD is supported
                Selectable boot is supported
                EDD is supported
                3.5"/720 kB floppy services are supported (int 13h)
                Print screen service is supported (int 5h)
                8042 keyboard services are supported (int 9h)
                Serial services are supported (int 14h)
                Printer services are supported (int 17h)
                CGA/mono video services are supported (int 10h)
                ACPI is supported
                USB legacy is supported
                BIOS boot specification is supported
                Targeted content distribution is supported
                UEFI is supported
        BIOS Revision: 2.30
        Firmware Revision: 1.18

Handle 0x000F, DMI type 1, 27 bytes

thanks
~d
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