Hi,
We've been using lofiadm to mount DVD isos of
various versions and releases of Solaris in order
to run ./setup_install_server for a few years now.
It occurred to me that perhaps we could just share the
lofi FSs over NFS instead, saving a ton of diskspace,
after adding them to the vfstab.
Has anyone tried this out in a jumpstart environment?
Thanks a lot.
Hmmm, encouraging
I just moved the original shared install directory out the way,
recreated it empty, and mounted the ISO to that
new directory. Did an unshareall & a shareall, for
no good reason.
cd /export/install
mv s10sparc0106 s10sparc0106.ORIG
mkdir s10sparc0106
lofiadm -a /export/isos/s10sparc0106.iso
mount -F hsfs /dev/lofi/1 /export/install/s10sparc0106
The only troublesome part is getting the lofi
mounts to be recreated at reboot
Here's a rc3.d/S99 script that has a go.
Yes, I know SMF is the future....
#!/bin/ksh
for f in /export/isos/*.iso
do
file=$(basename $f)
mount -F hsfs $( lofiadm -a $f ) /seif/os/${file%.iso*}
done
df | grep -w os
Won't be able to try that out for a couple of weeks,
but I shouldn't think it makes much difference, esp.
as the clients' pkgadd is/was the limiting factor.
WAS: ufs->nfs
NOW: ufs->hsfs->nfs
Would be surprised if that added a noticeable overhead.
Anyone know anything about ufs/hsfs caching?Not me....
Just to add that after repeatedly downloading 0606 DVD segs (on
different machines, on an 8Mb connection, using SDM, with the
.zip MD5 checksums checking out) and failing to get a .iso that
lofiadm would accept, and then getting a CAT_000002 internal server
error when I tried to buy a CD, I ended up cheating.
Lofiadm always complained about the .iso file size not being a
multiple of 512 bytes.
The filesize was 356 short of a multiple of 512.
dd if=/dev/zero of=/tmp/o bs=1 count=356
ls -l /tmp/o
cat /tmp/o >> Solaris10-3-05-DVD.iso
ls -l Solaris10-3-05-DVD.iso
lofiadm -a ~bob/Solaris10-3-05-DVD.iso
mount -F hsfs /dev/lofi/1 /mnt
ls /mnt
Bingo!
