DispVM available space
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Connor Page
Jun 8, 2016, 3:37:39 PM6/8/16
to qubes-users
I've noticed that there is no private image mounted in /rw in disposable vms.
1. What is the point of private image size setting in Qubes Manager then?
2. Is there an easy way to expand dvm storage without affecting it's template?
3. Am I missing something?
1. What is the point of private image size setting in Qubes Manager then?
2. Is there an easy way to expand dvm storage without affecting it's template?
3. Am I missing something?
I need to load large files in dvm, check them and then move to another vm. There is not enough RAM to use ramdisk.
Any quick hints will be appreciated.
Marek Marczykowski-Górecki
Jun 8, 2016, 5:49:42 PM6/8/16
to Connor Page, qubes-users
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Hash: SHA256
On Wed, Jun 08, 2016 at 12:37:39PM -0700, Connor Page wrote:
> I've noticed that there is no private image mounted in /rw in disposable vms.
> 1. What is the point of private image size setting in Qubes Manager then?
No point at all...
> 2. Is there an easy way to expand dvm storage without affecting it's template?
> 3. Am I missing something?
>
> I need to load large files in dvm, check them and then move to another vm. There is not enough RAM to use ramdisk.
> Any quick hints will be appreciated.
One idea is to add additional block device, even file based[*],
optionally encrypt it with ephemeral key and mount in that DispVM. Not
very convenient, but effective.
[*] In dom0:
truncate -s 10G /var/tmp/some-file.img
qvm-block --attach-file dispN dom0:/var/tmp/some-file.img
rm /var/tmp/some-file.img
The actual space will be automatically released as soon as you shutdown
the DispVM.
- --
Best Regards,
Marek Marczykowski-Górecki
Invisible Things Lab
A: Because it messes up the order in which people normally read text.
Q: Why is top-posting such a bad thing?
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On Wed, Jun 08, 2016 at 12:37:39PM -0700, Connor Page wrote:
> I've noticed that there is no private image mounted in /rw in disposable vms.
> 1. What is the point of private image size setting in Qubes Manager then?
> 2. Is there an easy way to expand dvm storage without affecting it's template?
> 3. Am I missing something?
>
> I need to load large files in dvm, check them and then move to another vm. There is not enough RAM to use ramdisk.
> Any quick hints will be appreciated.
optionally encrypt it with ephemeral key and mount in that DispVM. Not
very convenient, but effective.
[*] In dom0:
truncate -s 10G /var/tmp/some-file.img
qvm-block --attach-file dispN dom0:/var/tmp/some-file.img
rm /var/tmp/some-file.img
The actual space will be automatically released as soon as you shutdown
the DispVM.
- --
Best Regards,
Marek Marczykowski-Górecki
Invisible Things Lab
A: Because it messes up the order in which people normally read text.
Q: Why is top-posting such a bad thing?
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Connor Page
Jun 8, 2016, 6:30:57 PM6/8/16
to qubes-users
Thank you Marek. I guess the setting should be greyed out same as root image size.
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