Re: Boot jfs in the bootmanager...

On Fri, 7 Sep 2007 03:03:33 UTC, "James J. Weinkam" <jjw@xxxxxxxxx> wrote:
Rich Walsh wrote:

The "OS/2 is unable to operate..." message is the result of letting older
versions of OS/2-eCS autocheck your v2.0 drive. The boot sector doesn't
look right to a non-bootable version of JFS, so it "fixes" it, rendering it
unbootable. On your older installations, you have to change the JFS /AUTOCHECK
parameter from '*' to an explicit list of drives that excludes the bootable
volume.

I am not entirely convinced that letting mcp2 check the drive is responsible
because as I had stated in my original post, I had backed up several times as I
reached milestones I wanted to be able to return to in case of trouble. On some
of these occasions, I did more than back up the partition, such as fixing
config,sys when a typo made the partition unbootable. In short, the volume was
check disked and modified by the mcp2 installation at least eight or ten times
before it suddenly refused to boot. I think this shows there is more to it than
autocheck fouling up the partition.

My recollection of some of the particulars is fuzzy. It may be that JFS chkdsk
only rewrites the boot sector when it finds the volume is dirty & it has to do
more than just a quick check of the journal.


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