On Tue, Aug 29, 2017 at 04:08:38PM -0700, nicholas roveda wrote:
> I'm using R4.0 rc1.
>
> I wanted to install a Linux distro inside a disk image located in dom0 home,
> using QEMU in an AppVM.
>
> I've created a new disk image in dom0, set it up (dos partition label and a
> primary ext4 partition) and attached it with `kpartx` to loopX, but
> `qvm-block` doesn't list it in the exposed block devices.
>
> So, in order to understand better how Qubes handles this, I've tried to do
> the same in a VM and see if the dom0 would catch the event, but nothing.
> Strangely, when I detached the disk image, both the 'AppVM:loopX - IMG_PATH
> is available' and 'AppVM:loopX - IMG_PATH is removed' notifications appeared
> on the screen.
>
> I've read a lot about it, but I think what I found was all related to a <
> R4.0 version, so I don't know if this issue is related to a intended design
> or a bug.
>
>
>
> Procedure:
> [user@dom0 ~]$ dd if=/dev/zero of=/home/user/table.raw bs=2048 count=1
> [user@dom0 ~]$ dd if=/dev/zero of=/home/user/root.raw bs=3GB count=1
> [user@dom0 ~]$ mkfs.ext4 /home/user/root.raw
> [user@dom0 ~]$ cat /home/user/{table,root}.raw > /home/user/root.img
> [user@dom0 ~]$ rm /home/user/{table,root}.raw
> [user@dom0 ~]$ truncate -s 3GB /home/user/root.img
> [user@dom0 ~]$ fdisk /home/user/root.img
> o new DOS partition table
> n new partition
> p primary
> 1 first
> 2048 first sector
> \n to the end
> [user@dom0 ~] fdisk -l /home/user/root.img
> Disk /home/user/root.img: 2.8 GiB, 3000000000 bytes, 5859375 sectors
> Units: sectors of 1 * 512 = 512 bytes
> Sector size (logical/physical): 512 bytes / 512 bytes
> I/O size (minimum/optimal): 512 bytes / 512 bytes
> Disklabel type: dos
> Disk identifier: 0xda159b44
>
> Device Boot Start End Sectors Size Id Type
> root.img1 2048 5859374 5857327 2.8G 83 Linux
>
> [user@dom0 ~] sudo kpartx -a /home/user/root.img
> [user@dom0 ~] losetup -l
> NAME SIZELIMIT OFFSET AUTOCLEAR RO BACK-FILE
> DIO
> /dev/loop40 0 0 0 0 /home/user/root.img
> 0
> [user@dom0 ~] ls /dev/mapper
> control loop40p1 ...
>
I'm not surprised at this.
Can you use qvm-block -A to attach a file? Wouldnt that be
easier for you?
--
You received this message because you are subscribed to the Google Groups
"qubes-users" group.
To unsubscribe from this group and stop receiving emails from it, send an email
to [email protected].
To post to this group, send email to [email protected].
To view this discussion on the web visit
https://groups.google.com/d/msgid/qubes-users/20170901151324.ahx7dv5e4qnix2hl%40thirdeyesecurity.org.
For more options, visit https://groups.google.com/d/optout.
