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
...
[42949373.530000] Console initialized on /dev/tty0
[42949373.530000] Initializing software serial port version 1
[42949373.570000] Failed to read COW header from COW file "/dev/md1",
errno = 22
[42949373.570000] Failed to open '/dev/md1', errno = 22
[42949373.570000] VFS: Cannot open root device "98:0" or
unknown-block(98,0)
[42949373.570000] Please append a correct "root=" boot option
[42949373.570000] Kernel panic - not syncing: VFS: Unable to mount root fs
on unknown-block(98,0)
[42949373.570000]
[42949373.570000] EIP: 0073:[<b7e85551>] CPU: 0 Not tainted ESP:
007b:b7e5afb0 EFLAGS: 00000246
...
I get the same results trying to use a block device. Attemping a uml_mkcow
with md1 as my cow and md2 as my backing file generates the following
[EMAIL PROTECTED]:/mnt# uml_mkcow /dev/md1 /dev/md2
open COW file: File exists
[EMAIL PROTECTED]:/mnt# uml_mkcow -f /dev/md1 /dev/md2
cow bitmap lseek failed : errno = 22
write_cow_header: Invalid argument
--
Jason
The place where you made your stand never mattered. Only that you were there..
And still on your feet.
On Wed, 3 Aug 2005, Jeff Dike wrote:
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
thoughts or am I just wasting time?
What's the console output?
Jeff
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