BTW, Im a bonehead and forgot to derefernce the pointer for those offset
vars. The actual values are below. Im looking into it.
[EMAIL PROTECTED]:~/tools/moo# ./uml_mkcow -f /dev/md1 /dev/md2
cow bitmap lseek failed : errno = 22
bitmap_offset_out 8192, data_offset_out 1232896
write_cow_header:
will do, thanks for the pointers.
--
Jason
The place where you made your stand never mattered. Only that you were there..
And still on your feet.
On Fri, 5 Aug 2005, Blaisorblade wrote:
On Thursday 04 August 2005 22:02, Jason Clark wrote:
md1 and md2 are both 5 gig.
md2 will eventually b
On Thursday 04 August 2005 22:02, Jason Clark wrote:
> md1 and md2 are both 5 gig.
> md2 will eventually be much smaller.
Guess it won't, it must be 5G long. On normal files you can use sparse ones,
not on block devices... and if that seems stupid, yeah, COW files were
designed for sparse files
md1 and md2 are both 5 gig. md2 will eventually be much smaller.
Changing lseek to lseek64 in cow_sys.h results in the same error.
[EMAIL PROTECTED]:~# uml_mkcow -f /dev/md1 /dev/md2
cow bitmap lseek failed : errno = 22
write_cow_header: Invalid argument
Here is the results of the same command
On Wednesday 03 August 2005 23:01, Jason Clark wrote:
> Here is the output trying to use /dev/md1 as my cow file and
> /mnt/cow/rootfs.cow as my backing file
>
> [EMAIL PROTECTED]:/mnt# linux ubd0=/dev/md1,/mnt/cow/rootfs.cow
> ...
> [42949373.53] Console initialized on /dev/tty0
> [42949373.53
Here is the output trying to use /dev/md1 as my cow file and
/mnt/cow/rootfs.cow as my backing file
[EMAIL PROTECTED]:/mnt# linux ubd0=/dev/md1,/mnt/cow/rootfs.cow
...
[42949373.53] Console initialized on /dev/tty0
[42949373.53] Initializing software serial port version 1
[42949373.57000
On Wed, Aug 03, 2005 at 02:23:58PM -0500, Jason Clark wrote:
> Neither of these seem to work, just get a kernel panic about not being
> able to find a rootfs. THe backing file will boot on its own as will the
> md0 device, but I cant seem to get the cow file relationship working. Any
> thought
I have been using linux software RAID block devices as my files for my UML
hosts. Instead of using
linux ubd0=file.fs
I use
linux ubd0=/dev/md0
The performance increase is outstanding, but I have run into one small
snag. I am trying to migrate over to using COW files on a fresh server,
but I
