cp: will not create hard link

[rickenbacherus]

Rather than ramble on I'll just point you here. They've said it all I think.

http://www.troubleshooters.com/linux/ext2toext3.htm

In fact you can go from ext2 to ext3 and back again (if you're brave)

[Fabianx]

power outage
ok.. so...
#tune2fs -j /dev/hda1

and fstab editing is all i need to do, right?

No! You need to use an initrd ...

I wrote the journaling filesystem part of knx-hdinstall, so I know that it is not easy to use it on your boot partition afterwards ... (I think somewthing with xfs got wrong, I myself never tested it, seems to need pivot_root, am discussing this with author of knx-hdinstall just now (waiting for reply to my mail))

However:

apt-get install ash <debian-kernel>

should work and after making an initrd and having setup lilo.conf correctly all will work )

I'll in short explain, what goes wrong and why your system was ext2 even if you did install a journal...

The kernel has according to SuSE-people a bug. It prefers ext2 over ext3, when ext3 is a module and not builtin into kernel. This is no problem for mounting other partitions but one for root-partition ...

Kernel tries to do it ext2, succeeds and uses it that way ...

So journal is never recreated and fails desperately ...

One solution is to use an initial ramdisk, which loads jbd, ext3-module, pre-mounts the hd and the pivot_roots (change permant root) into it.

For reiserfs one only needs to load the module at startup, kernel will do the rest (no race condition, as kernel cannot mount it as an ext2, but also kernel panic without initrd!)

Christian most probably thought xfs, was the same, but it seems not to work, so we'll try to do it with pivot_root and then see if it works ...

Then you get a new version ...

If anyone wants to test an initrd with pivot_root and xfs he has to change following lines in knx-hdinstall (just copy it from /usr/local to . and then after cahning start with ./knx-hdinstall, that works):

change:

xfs)
INITMODS="$INITMODS xfs"
;;

to:

xfs)
INITMODS="$INITMODS xfs"
PIVOTFS="xfs"
;;

Then ./knx-hdinstall and see if that works ... (so no kernel panic at boot)

If it doesn't it would be nice to have the mount error-message...

cu

Fabian

[emanuelez]

thx mate!
i'll really miss these nice antialiased fonts :P

[Fabianx]

Rather than ramble on I'll just point you here. They've said it all I think.

http://www.troubleshooters.com/linux/ext2toext3.htm

In fact you can go from ext2 to ext3 and back again (if you're brave)

bah, they do know nothing ... (well, ok they know something but these are mistakes )

* ext3 only works that way if compiled into the kernel
* mount will show the entry from /etc/fstab not the real mount (and use /etc/mtab)
[ So it can show ext3 even if it is still ext2 ]

Do "cat /proc/mounts" if you need infos if its ext2 or ext3.

cu

Fabian

[Fabianx]

thx mate!
i'll really miss these nice antialiased fonts :P

huh ? Now I'm puzzled, what do you mean ?

cu

Fabian

PS: Sorry, for doing so much posts, but I was just answering to each of you!

[rickenbacherus]

* mount will show the entry from /etc/fstab not the real mount (and use /etc/mtab)
[ So it can show ext3 even if it is still ext2 ]

Do "cat /proc/mounts" if you need infos if its ext2 or ext3.

cu

Fabian

So you're telling me that even though my fstab says ext3 and cat /proc/mounts says ext3 and even though I have lost power to my machine when I rebooted it says nothing about running fsck it is still ext2? Do I understand you correctly?

[emanuelez]

fabianx... many thanks for your help and support.
i tried to hdinstall knoppix 3.2 anso using wxt2 but i have the same cp error.
i guess i have to go back to knoppix 3.1

about antialiased fonts... i really like the way mozilla looks with them (dunno if it's because of xfree 4.3 or anything else) so i'll try to update my system once i get my old knoppinx 3.1 to work properly on hdd again

[Fabianx]

* mount will show the entry from /etc/fstab not the real mount (and use /etc/mtab)
[ So it can show ext3 even if it is still ext2 ]

Do "cat /proc/mounts" if you need infos if its ext2 or ext3.

cu

Fabian

So you're telling me that even though my fstab says ext3 and cat /proc/mounts says ext3 and even though I have lost power to my machine when I rebooted it says nothing about running fsck it is still ext2? Do I understand you correctly?

No, if cat /proc/moutns says ext3 all is fine (and it IS ext3), but you cannot be so sure if only "mount" says ext3.

If it works, we don't have to dicsuss it

cu

Fabian

[Fabianx]

fabianx... many thanks for your help and support.
i tried to hdinstall knoppix 3.2 anso using wxt2 but i have the same cp error.
i guess i have to go back to knoppix 3.1

about antialiased fonts... i really like the way mozilla looks with them (dunno if it's because of xfree 4.3 or anything else) so i'll try to update my system once i get my old knoppinx 3.1 to work properly on hdd again

It sems from another Thread, that 2003-03-28 will solve your problem. (Though I haven't tested it yet.)

cu

Fabian

[emanuelez]

i downloaded the latestt version of knoppix 3.2. the hard link problem is gone but some new problem arrived.
so i got back to 3.1 and i'm tweaking it to fit my needs and likes.
i want to convert my ext2 to ext3 but i didn't understand what u told me about it.
do i have to recompile the kernel?
thx again!