Re: [Jfs-discussion] jfs-1.0.15 on sparc32 eats partition table

[Florin I. <fl...@iu...>]

On Mon, Mar 11, 2002 at 09:22:37AM -0600, Dave Kleikamp wrote:
> On Sunday 10 March 2002 02:10 pm, Florin Iucha wrote:
> > Hello,
> >
> > I have got linux-2.4 from vger patched with jfs-1.0.15 . The patches
> > applied cleanly.
> >
> > I have rebooted with the new kernel and created a jfs partition on my
> > second disk (/dev/sdb1). I have copied some stuff (my /var directory)
> > onto that partition and rebooted. Upon reboot, the sdb disk had no
> > partition table. As I was dumb enough to remove the /var partition,
> > it will take a while before I can try to repeat the experiment ;^).
>=20
> JFS shouldn't be able to touch the partition table.  Just a guess, but=20
> could it be possible you formatted /dev/sdb instead of /dev/sdb1?

Absolutely not. That was my first thought too, and I did it again, just
to be sure.

The following scenario:
   dd if=3D/dev/zero of=3D/dev/sdb bs=3D1M count=3D1
   fdisk /dev/sdb
   <create SUN disklabel: sdb1 - linux, sdb2 - swap, sdb3 - whole disk>
   mkswap /dev/sdb2
   mkfs.<type> /dev/sdb1
   mount /dev/sdb1 /mnt
   <copy 100 MB of stuff (partition has almost 1 G)>
   reboot

Works for ext3 and reiserfs and fails for jfs.

Cheers,
florin

--=20

"If it's not broken, let's fix it till it is."

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