Thanks Micheal,
That's what I ended up doing.
Used ED to delete the dasdc stuff from fstab. Rebooted - this came up with
network in place etc so I was able to use YAST and fix. Everything is back
to what is was.
Thanks for the vdisk info - I will check the redbook.
I was not using the SWAPGEN exec.
Peter.
Michael MacIsaac
<[EMAIL PROTECTED]
om> To
Sent by: Linux on [email protected]
390 Port cc
<[EMAIL PROTECTED]
IST.EDU> Subject
Re: FBA device driver
05/19/2005 02:59
PM
Please respond to
Linux on 390 Port
<[EMAIL PROTECTED]
IST.EDU>
Peter,
The hint is right there:
# mount -n -o remount,rw /
Try that command and you should have your root file system read/write.
Then the question is how to repair your system so it at least boots. It
sounds like your DASD got out of sync, so that what was /dev/dasdc is no
longer /dev/dasdc. So perhaps the easiest thing to do is to modify
/etc/fstab so it doesn't panic when it can't mount /dev/dasdc1. I would
guess the /dev/dasdc1 has a "1 2" as the last two fields. Try:
# cd /etc
# grep "1 2" fstab
If this assumption is true, you can change it to "0 0" as follows:
# cp fstab fstab.bad
# cat fstab.bad | sed -e 's/1 2/0 0/g' > fstab
Do a "cat fstab" to be sure you have the 0 0 in there. Then you want to be
sure the change is written to disk. I guess "sync" is safe (not sure is
shutdown is in the initrd and not sure if you can umount a remounted root
file system). Then if you IPL your system it should come up because even
if /zptf is not mounted, the system won't panic.
Getting back to the VDISK swap. Are you creating the VDISK swap space with
the SWAPGEN EXEC from Sine Nomine? Your first append suggests you may be
trying to change a minidisk to a VDISK which is not possible. A scenario
for using a VDISK swap space then a minidisk swap space is written up in
the (still draft) redbook "z/VM and Linux on zSeries: From LPAR to Virtual
Servers in Two Days" on the Web at:
http://www.redbooks.ibm.com/abstracts/sg246695.html
I believe you can edit the zipl.conf file and specifically associate a
driver type with a disk. You don't say what virtual device your VDISK swap
space is, but let's say it's 204. Then you can
# vi zipl.conf // add the dasd= string
...
[ipl]
target = /boot/zipl
image = /boot/image
ramdisk = /boot/initrd
parameters = "root=/dev/dasda1 dasd=201,202,203,204(fba) selinux=0
TERM=dumb elevator=cfq"
and run zipl. I believe this will work. Good luck.
"Mike MacIsaac" <[EMAIL PROTECTED]> (845) 433-7061
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