James,
How do you tell Linux what VM already knows (The disk is RO) during
startup
so you camt mount the VM specified RO mini-disk as RW to linux?
Good question. But it goes back to the basic premise that Mark pointed
out. I'll try to summarize
1) when you need to write to a disk that others
On Thursday, 06/08/2006 at 08:12 AST, Michael
MacIsaac/Poughkeepsie/[EMAIL PROTECTED] wrote:
1) when you need to write to a disk that others have R/O, all others
should unmount the disk,
2) then the master can mount it, write to it and unmount it.
3) then all others can mount it R/O again.
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1
Michael MacIsaac wrote:
James,
How do you tell Linux what VM already knows (The disk is RO) during
startup
so you camt mount the VM specified RO mini-disk as RW to linux?
Good question. But it goes back to the basic premise that Mark pointed
Alan Altmark wrote:
On Thursday, 06/08/2006 at 08:12 AST, Michael
MacIsaac/Poughkeepsie/[EMAIL PROTECTED] wrote:
1) when you need to write to a disk that others have R/O, all others
should unmount the disk,
2) then the master can mount it, write to it and unmount it.
3) then all others can
I know some people will be shocked, but z/VM can't perform miracles.
thud. :-) Though I am forced to admit that it does a pretty good
imitation!
So you're closing this comment as FIN (fixed in next release)?
*grin*
-- db
Subject
Re:
Mounting ext3 disk read-only as ext2
Please respond to
Linux on 390 Port LINUX-390@VM.MARIST.EDU
James,
How do
On 6/8/06, James Melin [EMAIL PROTECTED] wrote:
So, even though the VM image sees the disk as RO via the CP link, when Linux
comes up, it does NOT see these as RO by default, even though FSTAB has
the active disk mounted RO. the contents of /proc/dasd/devices never shows the
RO linked disks
Re:
Mounting ext3 disk read-only as ext2
Please respond to
Linux on 390 Port LINUX-390@VM.MARIST.EDU
On 6/8/06, James Melin [EMAIL PROTECTED] wrote:
So, even though the VM image sees
On Thursday, 06/08/2006 at 04:33 ZE2, Rob van der Heij
[EMAIL PROTECTED] wrote:
Because the DASD architecture does not have a means to tell the host
that someone has flipped the write disable switch on the device.
Not quite true, Sir! You find out when you try to write. :-) You will
get a
Michael,
Please check how the dasd driver sees the dasdd disk ( /proc/dasd/devices
), read/only or read/writable.
If it says rw, then the journalling code seems to want to write to the
disk, even if you say ro or ext2.
If it says rw, then you can issue blockdev --setro /dev/dasdd before you
Ronald,
Thanks for the append.
Please check how the dasd driver sees the dasdd disk
It sees it as ro:
# cat /proc/dasd/devices
0.0.0100(ECKD) at ( 94: 0) is dasda : active at blocksize: 4096,
546840 blocks, 2136 MB
0.0.0101(FBA ) at ( 94: 4) is dasdb : active at blocksize:
to share read-only while someone else has a file system
read-write.
Mark Post
-Original Message-
From: Linux on 390 Port [mailto:[EMAIL PROTECTED] On Behalf Of
Michael MacIsaac
Sent: Wednesday, June 07, 2006 3:08 PM
To: LINUX-390@VM.MARIST.EDU
Subject: Re: Mounting ext3 disk read-only as ext2
Re:
Mounting ext3 disk read-only as ext2
Please respond to
Linux on 390 Port LINUX-390@VM.MARIST.EDU
Ronald,
Thanks for the append.
Please check how the dasd driver sees the dasdd
Hello list,
I'm trying to mount an ext3 file system as ext2, I thought this could
*always* be done, but I'm finding otherwise.
I write to a disk on a master Linux and then want to link it read-only
on clones. I use a LINK statement in the USER DIRECTory, use (ro) in
zipl.conf and ro in fstab.
You could try mounting it with the noload option. Might work...never
tried it.
Leland
On 6/6/06 12:39 PM, Michael MacIsaac [EMAIL PROTECTED] wrote:
Hello list,
I'm trying to mount an ext3 file system as ext2, I thought this could
*always* be done, but I'm finding otherwise.
I write to a
Leland,
You could try mounting it with the noload option.
Thanks, but no cigar - same error:
# mount -o noload /dev/dasdd1 /mnt
mount: wrong fs type, bad option, bad superblock on /dev/dasdd1,
or too many mounted file systems
Mike MacIsaac [EMAIL PROTECTED] (845) 433-7061
Subject
Re:
Mounting ext3 disk read-only as ext2
Please respond to
Linux
James,
Did you try the -t flag? -t ext2 specifically?
Yes, many times:
# mount -t ext2 -o ro /dev/dasdd1 /mnt
mount: wrong fs type, bad option, bad superblock on /dev/dasdd1,
or too many mounted file systems
# mount -t ext2 -o noload /dev/dasdd1 /mnt
mount: wrong fs type, bad
18 matches
Mail list logo
