When installing RH 6.0 built May 26 1999 on my new Sony Vaio
PCG-505TR laptop, the Sony PCMCIA IDE CD-ROM drive boots the
RH6 CD OK and (with the PCMCIA supplementary floppy)
successfully insmods pcmcia_core, i82365 and ds modules,
but cannot access the CD-ROM for installation with the
following error messages in the system log window:

<30> cardmgr[13]: Card Services release does not match!
<30> cardmgr[13]: socket 0: Ninja ATA executing 'insmod
ide_cs.o'
<4> hdc: UJDB110, ATAPI CDROM drive
<4> ide2: ports already in use, skipping probe
<4> ide1 at 0x180-0x187,0x386 on irq 3
<4> hdc: ATAPI 14x CD-ROM drive, 128kb Cache
<6> Uniform CDROM driver revision: 2.54
<6> ide_cs: hdc: Vcc=5.0, Vpp=0.0
<30> cardmgr[13]: executing './ide start hdc'
<30> + cat: not found
<30> + ./ide: /sbin/ide_info: not found
<30> + usage: ./ide [action] [devicename]
<30> start cmd exited with status 1

A workaround documented on the Linux Laptop pages for RH5.2
still works, to start linux with the following parameters:
'ide2=0x180,0x386 cdrom=hde'

It is then necessary to change the /dev/cdrom symlink from
/dev/hde to /dev/hdc after installation, since the PCMCIA
drivers work as normal after RH6 is sucessfully installed.
The bug seems to be in the PCMCIA installation floppy only.