Re: [coLinux-devel] Problems mounting reiserfs

[Alex <ro...@ya...>]

Hi,

	I also faced that problem before. Seems that there is a bug in coLinux 
with calculating size of partition(or maybe its windows reports zero 
size to coLinux, dunno). I fixed it by patching reiserfs driver in 
kernel, its easy, just find that error message in fs/reiserfs(it should 
be in super.c if i remember correctly) and comment out condition where 
it resides. After this fix it works OK for me.

Milind Kamble wrote:
> I have updated to coLinux-0.6.0 and use
> Debian-3.0r0 filesystem image to boot into Linux.
> I am having trouble mounting a reiserfs partition when
> colinux is booted up. The setup I have is follows:
> I have a 15G extended partition seperate from the
> Windows XP partition. It has 4 logical partitions
> within it, which were created using Knoppix, and then
> formatted using mkfs.reiserfs
> The mapping has been setup correctly to use raw disk
> in default.colinux.xml so that the partitions are
> accessible as /dev/cobd[2345] etc.
> Sample entry from default.colinux.xml:
> <block_device index="2"
> path=\Device\Harddisk0\Partition2" enabled="true"/>
> 
> Note: the partition is the first logical partition in
> the extended partition -- so from XP point of view,
> the partition is number 2
> 
> However when I try to mount I get the following error
> message:
> 
> colinux-mbk:~# mount -t reiserfs /dev/cobd3 /mnt/tmp
> reiserfs: found format "3.6" with standard journal
> Filesystem on 75:03 cannot be mounted because it is
> bigger than the device
> You may need to run fsck or increase size of your LVM
> partition
> Or may be you forgot to reboot after fdisk when it
> told you to
> mount: wrong fs type, bad option, bad superblock on
> /dev/cobd3,
>        or too many mounted file systems
>        (could this be the IDE device where you in fact
> use 
>         ide-scsi so that sr0 or sda or so is needed?)
> 
> Then I tried running mkfs.reiserfs from colinux as
> follows:
> 
> colinux-mbk:~# mkfs.reiserfs /dev/cobd2
> All data on /dev/cobd2 will be lost. Do you really
> want to create reiser filesystem(v3.6) (y/n) y
> Error: Invalid filesystem size (0).
> Error: Couldn't create filesystem on /dev/cobd2
> 
> So it seems that the size of /dev/cobd2 is reported to
> be 0, where as actual size is 2G.
> 
> Any clues what is going wrong?
> 
> When I reformatted the partition to ext3, they can be
> mounted with no problems in colinux.
> 
> Thanks
> 
> 
> 
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-- 
With best regards, Alex