Messages in this thread | | | Date | Mon, 24 Jan 2000 14:33:47 +0000 | From | James Box <> | Subject | Unable to reread SCSI optical disks |
| |
I have an old MaxOptix optical drive that has been used for years to back up the weekly data on a SCO Unix machine. Now the machine has been upgraded with new hardware and Redhat Linux, I would still like to be read in all the old data.
The optical drive is connected to an Adaptec 1540 SCSI controller and the driver is compiled as a module. Once the module is loaded, it finds the drive and the disk and tells me the partition of where the data is stored. I can then mount and access the data on the sysv filesystem.
My problem comes when I unmount the disk, eject it and insert a different disk. It appears to mount ok but when I look at the data it has the directory structure that was on the old disk and I am unable to read anything. Is there some reason why it did not reread the directory structure?
Here is some relevant information and copy of the log entries: Single Intel Pentium III-450 on a Dual board (MicroStar) Onboard SCSI controller (Adaptec AIC-7895) for hard disk Offboard ISA SCSI controller (Adaptec 1540) for optical MaxOptix T3-1301 Optical drive RedHat Linux 5.2 base Kernels tried with no difference (2.0.36, 2.2.12, 2.2.14) This is a main server so development kernels are not recommended.
Jan 24 14:12:38 zeus kernel: scsi : 2 hosts. Jan 24 14:13:07 zeus kernel: Configuring Adaptec (SCSI-ID 7) at IO:330, IRQ 15, DMA priority 5 Jan 24 14:13:07 zeus kernel: scsi2 : Adaptec 1542 Jan 24 14:13:07 zeus kernel: scsi : 3 hosts. Jan 24 14:13:08 zeus kernel: Vendor: Maxoptix Model: T3-1301 Rev: 1.1c Jan 24 14:13:08 zeus kernel: Type: Optical Device ANSI SCSI revision: 02 Jan 24 14:13:08 zeus kernel: Detected scsi removable disk sdb at scsi2, channel 0, id 4, lun 0 Jan 24 14:13:08 zeus kernel: Wrong buffer length supplied for request sense (256) Jan 24 14:13:08 zeus kernel: SCSI device sdb: hdwr sector= 512 bytes. Sectors= 1163337 [568 MB] [0.6 GB] Jan 24 14:13:08 zeus kernel: sdb: Write Protect is off Jan 24 14:13:08 zeus kernel: sdb: sdb4 Jan 24 14:13:20 zeus kernel: VFS: Found a SystemV FS (block size = 1024) on device 08:14 Jan 24 14:15:16 zeus kernel: Wrong buffer length supplied for request sense (256) Jan 24 14:15:16 zeus kernel: VFS: Found a SystemV FS (block size = 1024) on device 08:14
Please CC any replies to me.
Thanks, James -- James Box ** james@barrscourt.co.uk ** Technical Support Manager Barrs Court Computer Systems, Longwell Green, Bristol.
- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.rutgers.edu Please read the FAQ at http://www.tux.org/lkml/
| |