Thanks Christian... I'll try your suggestion..
# modprobe vmcp # sleep 1 # vmcp your command I really appreciate your help. susan ------------------------------ Date: Thu, 5 Jul 2007 17:10:35 +0200 From: Christian Borntraeger <[EMAIL PROTECTED]> Subject: Re: vmcp during boot results in Error: Could not open device /dev/vmcp: No such device Hi Susan, > While at SLES9, would you recommend hcp be used instead of vmcp at least > during boot? The Basevol/Guestvol script uses hcp, but since it sounded > like vmcp was preferred over hcp, I changed the script to invoke vmcp > instead. I would recommend vmcp, but I am biased here. Use whatever works best for y= ou.=20 > I see udev in the boot process before the vmcp is issued (Basevol/Guestvol > script). However, it is within 4 seconds. If it can take up to 10 seconds, > it sounds like the timing of this not consistent enough at SLES9. The delay is not about start of udev --> use of vmcp, its about vmcp module= =20 loaded --> use of vmcp.=20 I have never seen the 10 second delay on SLES9 under z/VM (The 10 second de= lay=20 is RHEL4 specific and you have to trigger a bug). In fact, I am quite sure= =20 that udev will create the device node in milliseconds in almost every case = if=20 you run under z/VM and dont attach hundreds of devices.=20 So if=20 # modprobe vmcp # sleep 1 # vmcp your command does not work, something is probably going seriously wrong. If you dont want to rely on udev you can always use a pre-defined device no= de=20 in your ram disk. You just have to know the sequence of your kernel modules= ,=20 that create a misc device with dynamic minor. Dynamic minors are assigned a= s=20 63,62,61... and modules that use dynamic minors are for example=20 device_mapper, dasd_eer, zfcp_hbaapi. =2D-=20 IBM Deutschland Entwicklung GmbH Vorsitzender des Aufsichtsrats: Martin Jetter Gesch=E4ftsf=FChrung: Herbert Kircher=20 Sitz der Gesellschaft: B=F6blingen Registergericht: Amtsgericht Stuttgart, HRB 243294 ---------------------------------------------------------------------- ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
