SCSI F2513A and 640 Mbyte media and 2.4.0

[John Summerfield]

The 2k sector support is imperfect;-(

The media are recognised correctly (I've not tried switching between 230 Nbyte 
and 640 Mbyte disks), BUT

Something can forget.

I started with a Linux disk containing my archive of RHL 5.2 rpms.

I did an rpm --verify of them all and they all checked out.
I then ejected the disk (using the eject command; this did not work correctly 
with the first 2.2 kernels) and inserted an OS/2 HPFS disk.

The disk checked out with sfdisk, but I can't mount it (Linux' HPFS support 
for these disks has never worked), so I ran a few commands to read data from 
t, culminating with dd to make a file of its contents.

When I started dd, one of the other commands (strings, I think) was running, 
so there was probably some thrashing at first

When dd finished, I could no longer read the partition table:
[root@dugite /root]# fdisk -l -b 2048 /dev/sda
[root@dugite /root]# fdisk  -b 2048 /dev/sda

Unable to read /dev/sda
[root@dugite /root]# dmesg | tail
sd.c:Bad block number requested I/O error: dev 08:01, sector 1
 I/O error: dev 08:01, sector 1241224
 I/O error: dev 08:01, sector 1241224
ll_rw_block: device 08:00: only 512-char blocks implemented (1024)
sd.c:Bad block number requested I/O error: dev 08:00, sector 0
 I/O error: dev 08:01, sector 1241224
ll_rw_block: device 08:00: only 512-char blocks implemented (1024)
sd.c:Bad block number requested I/O error: dev 08:00, sector 0
ll_rw_block: device 08:00: only 512-char blocks implemented (1024)
sd.c:Bad block number requested I/O error: dev 08:00, sector 0
[root@dugite /root]# sfdisk -l  /dev/sda

Disk /dev/sda: 606 cylinders, 64 heads, 32 sectors/track
Units = cylinders of 1048576 bytes, blocks of 1024 bytes, counting from 0

   Device Boot Start     End   #cyls   #blocks   Id  System
/dev/sda1   *      0+    605     606-   620528    7  HPFS/NTFS
/dev/sda2          0       -       0         0    0  Empty
/dev/sda3          0       -       0         0    0  Empty
/dev/sda4          0       -       0         0    0  Empty
[root@dugite /root]# 

Before the last sfdisk, I ejected the disk using the button on the drive and 
reinserted it.

[root@dugite /root]# uname -a
Linux dugite 2.4.0 #2 Wed Jan 10 08:06:30 WST 2001 i586 unknown
[root@dugite /root]# 
fwiw I compiled the kernel targetting K6 with gcc 2.95.

The SCSI chipset is AIC7xxx.

[root@dugite /root]# lspci
00:00.0 Host bridge: Silicon Integrated Systems [SiS] 530 Host (rev 03)
00:00.1 IDE interface: Silicon Integrated Systems [SiS] 5513 [IDE] (rev d0)
00:01.0 ISA bridge: Silicon Integrated Systems [SiS] 85C503/5513 (rev b3)
00:01.1 Class ff00: Silicon Integrated Systems [SiS] ACPI
00:02.0 PCI bridge: Silicon Integrated Systems [SiS] 5591/5592 AGP
00:0b.0 SCSI storage controller: Adaptec AHA-294x / AIC-7871 (rev 03)
00:0c.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL-8139 (rev 10)
01:00.0 VGA compatible controller: Silicon Integrated Systems [SiS] 6306 
3D-AGP (rev a3)
[root@dugite /root]# 

-- 
Cheers
John Summerfield
http://www2.ami.com.au/ for OS/2 & linux information.
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