Nah.....it's just easier to use SWAPGEN....:-)
DJ
On 08/05/2011 01:55 PM, Christian Paro wrote:
> FWIW, if you use an init scrit rather than SWAPGEN to handle swap creation
> on VDisk, this also frees you from having to IPL CMS prior to booting Linux
> - shaving a little time off of the boot process.
>
> It also allows you to easily use one script for all your systems while
> defining different VDisk/TDisk configurations in your user directory to meet
> different swapping requirements.
>
> Here's an example that will bring online, prepare as swap volumes, and
> swapon any VDisk and TDisk volumes defined for the user ID within which
> Linux is running:
>
> #!/bin/bash
> # /etc/init.d/boot.makeswap
> # chkconfig: 3 07 92
> # Description: Creates swap on V-Disk.
> #
> ### BEGIN INIT INFO
> # Provides: boot.makeswap
> # Required-Start: boot.localfs boot.device-mapper
> # Should-Start:
> # Required-Stop: boot.localfs boot.device-mapper
> # Should-Stop:
> # Default-Start: B
> # Default-Stop:
> # Description: Enable swap on vdisk/tdisk
> # Short-Description: Enable swap on vdisk/tdisk
> ### END INIT INFO
>
> if [[ $1 = 'start' ]]; then
> # Create swap on VDISKs:
> for vdev in $(vmcp q v dasd | awk '/(VDSK)/{print $2}'); do
> chccwdev -e ${vdev} &>/dev/null
> sleep 1
> udevadm settle &>/dev/null || udevsettle &>/dev/null
> sleep 1
> if [[ -b /dev/disk/by-path/ccw-0.0.${vdev} ]]; then
> mkswap -f /dev/disk/by-path/ccw-0.0.${vdev}
> # The -p option here sets a priority to force the use of this vdisk
> # swap before any real-disk swap partitions or swap files.
> swapon -p 1023 /dev/disk/by-path/ccw-0.0.${vdev}
> fi
> done
> # Create swap on TDISKS:
> for vdev in $(vmcp q v dasd | awk '/(TEMP)/{print $2}'); do
> chccwdev -e ${vdev} &>/dev/null
> sleep 1
> udevadm settle &>/dev/null || udevsettle &>/dev/null
> sleep 1
> if [[ -b /dev/disk/by-path/ccw-0.0.${vdev} ]]; then
> if [[ $(grep "^0.0.${vdev}" /proc/dasd/devices | grep '(ECKD)') ]];
> then
> dasdfmt -y -b 4096 /dev/disk/by-path/ccw-0.0.${vdev}
> sync
> sleep 1
> fdasd -a /dev/disk/by-path/ccw-0.0.${vdev}
> udevadm settle &>/dev/null || udevsettle &>/dev/null
> sleep 1
> mkswap -f /dev/disk/by-path/ccw-0.0.${vdev}-part1
> swapon -p 255 /dev/disk/by-path/ccw-0.0.${vdev}-part1
> elif [[ $(grep "^0.0.${vdev}" /proc/dasd/devices | grep '(FBA )') ]];
> then
> mkswap -f /dev/disk/by-path/ccw-0.0.${vdev}
> swapon -p 255 /dev/disk/by-path/ccw-0.0.${vdev}
> fi
> fi
> done
> fi
>
> ...also setting swap priorities such that your (fast) VDisk swap space will
> be used before any TDisk swap space is used, and your TDisk swap space will
> be used before any static swap files or partitions (assuming those are
> brought up with without specifying a priority level, or with a priority
> level of < 255 specified).
>
> This behavior can, of course, be modified to suit your needs by modifying
> the script.
>
> On Fri, Aug 5, 2011 at 12:35 PM, Mark Post <[email protected]> wrote:
>
>>>>> On 8/5/2011 at 12:11 PM, <[email protected]> wrote:
>>> OK found my problem. When I uploaded initrd.img, I didn't realize I
>> had
>>> a disk full error. My bad.
>>>
>>> Fixed that and everything comes up. I have Fedora 15 installed.
>>>
>>> Does SWAPGEN work with this? What do you do regarding your swap
>>> partitions?
>>>
>>> I used vdisk for my swap disks and when I did a swapon, linux complained.
>>
>> SWAPGEN is not distribution specific. If you don't want to modify your
>> Linux startup scripts to do a "mkswap" on your VDISKS, then SWAPGEN is the
>> only way to go.
>>
>>
>> Mark Post
>>
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>>
>
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> send email to [email protected] with the message: INFO LINUX-390 or visit
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> ----------------------------------------------------------------------
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> http://wiki.linuxvm.org/
>
--
Dave Jones
V/Soft Software
www.vsoft-software.com
Houston, TX
281.578.7544
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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 more information on Linux on System z, visit
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