Edmund, Thanks for replying to my inquiry.
We are running kernel 2.4.19-3 on an LPAR with no VM. I issued the commands you had suggested after determining that we are on kernel 2.4 echo set 2734-273d on > /proc/dasd/devices I then reissued the DASD LIST command. Showing the following... 273e(ECKD) at ( 94: 0) is dasda : active at blocksize: 4096, 601020 blocks, 2347 MB 273f(ECKD) at ( 94: 4) is dasdb : active at blocksize: 4096, 601020 blocks, 2347 MB 283e(ECKD) at ( 94: 8) is dasdc : active at blocksize: 4096, 601020 blocks, 2347 MB 283f(ECKD) at ( 94: 12) is dasdd : active at blocksize: 4096, 601020 blocks, 2347 MB 2734(none) at ( 94: 16) is dasde : unknown 2735(none) at ( 94: 20) is dasdf : unknown 2736(none) at ( 94: 24) is dasdg : unknown 2737(none) at ( 94: 28) is dasdh : unknown 2738(none) at ( 94: 32) is dasdi : unknown 2739(none) at ( 94: 36) is dasdj : unknown 273a(none) at ( 94: 40) is dasdk : unknown 273b(none) at ( 94: 44) is dasdl : unknown 273c(none) at ( 94: 48) is dasdm : unknown 273d(none) at ( 94: 52) is dasdn : unknown 2834(none) at ( 94: 56) is dasdo : unknown 2835(none) at ( 94: 60) is dasdp : unknown 2836(none) at ( 94: 64) is dasdq : unknown 2837(none) at ( 94: 68) is dasdr : unknown 2838(none) at ( 94: 72) is dasds : unknown 2839(none) at ( 94: 76) is dasdt : unknown 283a(none) at ( 94: 80) is dasdu : unknown 283b(none) at ( 94: 84) is dasdv : unknown 283c(none) at ( 94: 88) is dasdw : unknown 283d(none) at ( 94: 92) is dasdx : unknown So I looked in /var/log/warn and found the following message again Feb 22 13:02:34 mflinux kernel: dasd: No device registered as (94:16) Kind regards, Lance Longstreth Bandag Inc 1-(563)-262-2927 [EMAIL PROTECTED] -----Original Message----- From: Linux on 390 Port [mailto:[EMAIL PROTECTED] On Behalf Of Edmund R. MacKenty Sent: Wednesday, February 22, 2006 12:34 PM To: LINUX-390@VM.MARIST.EDU Subject: Re: dasdfmt: Unable to open device /dev/dasde: No such device On Wednesday 22 February 2006 12:21, Longstreth, Lance wrote: >In need of help formating some DASD..We have some DASD we want to >format to be used by LVM. But when we try to format the volumes it does >recognize them. ... The VM guest has the DASD linked to it, but Linux doesn't know anything about them. You need to tell Linux to put them online. That "unknown" status for all your new DASD means that the dasd_mod device driver knows that something was linked at that virtual device number at one time, but it doesn't know anything about it anymore. You need to get it to say "active" there. How this is done depends on which kernel you're running. For 2.4, I know it off the top of my head: echo set 2734-273d on > /proc/dasd/devices echo set 2834-283d on > /proc/dasd/devices You can specify individual virtual device numbers or whatever ranges you want. After that, you should see that they are in the "active" state. For 2.6 kernels, you have to have an entry for each DASD device in the /etc/sysconfig/hardware directory. These can be copies of the files that are already there for other DASD devices. You then use the hwup command to put the DASD online. So you could, for example, do this: cd /etc/sysconfig/hardware copy dasd-bus-ccw-0.0.273e dasd-bus-ccw-0.0.2734 hwup dasd-bus-ccw-0.0.2734 And again check that your DASD is in the "active" state. Once the DASD is active, then you can run dasdfmt on it. - MacK. ----- Edmund R. MacKenty Software Architect Rocket Software, Inc. Newton, MA USA > >1. we have ran the zipl >2. shutdown the LINUX LPAR >3. did an inactivate using the HMC to refresh 4. Reactivated LPAR using >HMC 5. After system was up logon on an did a DASD LIST to see if the >new ones were showing. Yes they were from address 2735 on down on the >list > >273e(ECKD) at ( 94: 0) is dasda : active at blocksize: 4096, >601020 blocks, 2347 MB >273f(ECKD) at ( 94: 4) is dasdb : active at blocksize: 4096, >601020 blocks, 2347 MB >283e(ECKD) at ( 94: 8) is dasdc : active at blocksize: 4096, >601020 blocks, 2347 MB >283f(ECKD) at ( 94: 12) is dasdd : active at blocksize: 4096, >601020 blocks, 2347 MB >2734(none) at ( 94: 16) is dasde : unknown >2735(none) at ( 94: 20) is dasdf : unknown >2736(none) at ( 94: 24) is dasdg : unknown >2737(none) at ( 94: 28) is dasdh : unknown >2738(none) at ( 94: 32) is dasdi : unknown >2739(none) at ( 94: 36) is dasdj : unknown >273a(none) at ( 94: 40) is dasdk : unknown >273b(none) at ( 94: 44) is dasdl : unknown >273c(none) at ( 94: 48) is dasdm : unknown >273d(none) at ( 94: 52) is dasdn : unknown >2834(none) at ( 94: 56) is dasdo : unknown >2835(none) at ( 94: 60) is dasdp : unknown >2836(none) at ( 94: 64) is dasdq : unknown >2837(none) at ( 94: 68) is dasdr : unknown >2838(none) at ( 94: 72) is dasds : unknown >2839(none) at ( 94: 76) is dasdt : unknown >283a(none) at ( 94: 80) is dasdu : unknown >283b(none) at ( 94: 84) is dasdv : unknown >283c(none) at ( 94: 88) is dasdw : unknown >283d(none) at ( 94: 92) is dasdx : unknown > >6. Next tried to format the volumes with command - dasdfmt -f >/dev/dasdx -d cdl -l LNX024 -p -t > >mflinux:/var/log # dasdfmt -f /dev/dasde -d cdl -l LNX005 -p -t Please >enter the blocksize of the formatting [4096]: >dasdfmt: Unable to open device /dev/dasde: No such device >mflinux:/var/log # dasdfmt: Unable to open device /dev/dasde: No such >device > >7. Display coming out of /var/log/warn > >Feb 22 11:08:18 mflinux kernel: dasd: No device registered as (94:16) >Feb 22 11:09:22 mflinux kernel: dasd: No device registered as (94:92) >Feb 22 11:12:21 mflinux inetd[535]: smtp/tcp: bind: Address already in >use Feb 22 11:15:48 mflinux kernel: dasd: No device registered as >(94:16) > >8. I have reverified that they are not being used by anyother system > >Can anyone give some guidance on this problem > >Lance Longstreth >Bandag Inc >GITS Infrastructure Security and Engineering zOS systems/Linux >[EMAIL PROTECTED] > > > > >---------------------------------------------------------------------- >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 ---------------------------------------------------------------------- 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 ---------------------------------------------------------------------- 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