Displaying 20 results from an estimated 1000 matches similar to: "To discard... or not to discard..."
2009 Nov 21
2
How to trim the front of a string?
Hey everybody!
I have a problem with triming a string. I can get rid of the blank space in
front and at the back of a string and even trim a string at the back. But I
don't know how to do it in the front.
For Example: I have a string "Blackberry" and i want to delete the first 5
characters to get just "berry".
Tnx for your help
--
View this message in context:
2016 Aug 05
1
Re: [PATCH 2/4] daemon: fstrim: Turn "discard operation is not supported" into ENOTSUP.
On Friday, 5 August 2016 12:22:45 CEST Richard W.M. Jones wrote:
> Because we run the external fstrim command we don't have access to the
> kernel errno when it fails. However in the case where it prints this
> specific error message, turn that into errno ENOTSUP.
> ---
Can you please note this behaviour in the documentation of the fstrim
API?
Thanks,
--
Pino Toscano
2009 Nov 28
1
Can't share my secondary HD (Ubuntu to Windows)
Hello, I recently built a System out of old Computer parts I had. I
installed Ubuntu 9.10 in it. I built it for sharing all my files with my
other computer at home. I'm tired of having so many external Hard
Drives. So, I built this new/old system and installed an old Seagate
500GB hard drive I've just RMAed. I'm able to share all my files with
Windows Vista & 7 without any issues
2013 Oct 10
4
BUG relating to fstrim on btrfs partitions
I think I found a bug affecting btrfs filesystems and users invoking fstrim to discard unused blocks: if I execute a `fstrim -v /` twice, the amount trimmed does not change on the 2nd invocation AND it takes just as long as the first. Why do I think this is a bug? When I do the same on an ext4 partition I get different behavior: the output shows 0 B trimmed and it does is instantaneously when I
2018 Sep 05
3
Tests and trimming vfat
Here's a fun one:
+ guestfish -N test-virt-sparsify-in-place-fstrim-unsupported.img=fs:vfat exit
+ virt-sparsify --in-place test-virt-sparsify-in-place-fstrim-unsupported.img
+ tee test-virt-sparsify-in-place-fstrim-unsupported.log
[ 2.4] Trimming /dev/sda1
[ 7.5] Sparsify in-place operation completed with no errors
+ grep 'warning:.*fstrim'
2015 Apr 03
1
OT: Recommended anti-virus for Windows
On Thu, April 2, 2015 17:11, J Martin Rushton wrote:
> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA1
>
> Sorry to mention the "opposition" here, but I have a family member's
> laptop to protect, and I'm not allowed to upgrade it to Linux. What's
> the current best recommendation?
> Thanks,
We (Harte & Lyne Limited) formerly used F-Prot out of
2016 Apr 04
1
VPN suggestions centos 6, 7
On 04/04/2016 12:11 PM, Jussi Hirvi wrote:
> This made me google around a little, and I found some good info here.
> They, too, kind of recommend openvpn.
> http://www.howtogeek.com/211329/which-is-the-best-vpn-protocol-pptp-vs.-openvpn-vs.-l2tpipsec-vs.-sstp/
>
This is not good information.
In brief:
"There are some concerns that the NSA could have weakened the standard,
2019 Jun 27
1
raid 5 install
On Thu, 27 Jun 2019, Peda, Allan (NYC-GIS) wrote:
> I'd isolate all that RAID stuff from your OS, so the root, /boot, /usr, /etc /tmp, /bin swap are on "normal" partition(s). I know I'm missing some directories, but the point is you should be able to unmount that RAID stuff to adjust it without crippling your system.
>
>
2018 Sep 05
2
Re: Tests and trimming vfat
On Wed, Sep 05, 2018 at 04:41:01PM +0100, Daniel P. Berrangé wrote:
> On Wed, Sep 05, 2018 at 04:37:05PM +0100, Richard W.M. Jones wrote:
> >
> > Here's a fun one:
> >
> > + guestfish -N test-virt-sparsify-in-place-fstrim-unsupported.img=fs:vfat exit
> > + virt-sparsify --in-place test-virt-sparsify-in-place-fstrim-unsupported.img
> > + tee
2014 Nov 24
2
Windows PE booting without chainloading ipxe
Adding an option for initrdfile= boot argument to be ignored by wimboot worked just fine.
They can add this patch, which is probably most sane, or syslinux could add the INITRDFILE configuration option instead of having to append the option for linux.c32
wimboot-2.4.0/src/cmdline.c @ Line ~107
} else if ( key == cmdline ) {
/* Ignore unknown initial
2018 Sep 05
2
[PATCH] sparsify: Fix test-virt-sparsify-in-place-fstrim-unsupported.sh
Since Linux commit f663b5b38fff trimming vfat is now supported by
Linux. This broke the test which assumed it was not supported. Use
another filesystem (minix) which does not support trimming instead.
Thanks: Daniel P. Berrangé and Pino Toscano.
---
...virt-sparsify-in-place-fstrim-unsupported.sh | 17 ++++++++++-------
1 file changed, 10 insertions(+), 7 deletions(-)
diff --git
2016 Aug 05
0
[PATCH 2/4] daemon: fstrim: Turn "discard operation is not supported" into ENOTSUP.
Because we run the external fstrim command we don't have access to the
kernel errno when it fails. However in the case where it prints this
specific error message, turn that into errno ENOTSUP.
---
daemon/fstrim.c | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/daemon/fstrim.c b/daemon/fstrim.c
index 1ad3630..527acfd 100644
--- a/daemon/fstrim.c
+++
2016 Jan 20
1
LVM thin volumes fstrim operation not supported
I still get the "the discard operation is not supported" fstrim error
when the LVs are set to "nopassdown"
Seems that when I use ext4 the fstrim reports that it worked but the
LVs Data% does not decrease after the fstrim. xfs just throws the
error.
I've also been looking at the output of lsblk -D
# lsblk -D
NAME DISC-ALN DISC-GRAN DISC-MAX DISC-ZERO
xvdb
2016 Aug 12
4
[PATCH 1/2] v2v: Make fstrim warning clearer (RHBZ#1366456).
This reverts the change made for RHBZ#1168144. The warning is now
always displayed.
It would be nice to make the warning actionable, but there is not a
lot that end users can do since fstrim is such a complex topic
interacting with all filesystem and storage layers.
---
v2v/v2v.ml | 6 +-----
1 file changed, 1 insertion(+), 5 deletions(-)
diff --git a/v2v/v2v.ml b/v2v/v2v.ml
index
2016 Jan 19
2
LVM thin volumes fstrim operation not supported
Hi All
I'm trying to setup my LVM thin pool to support discards so that the pool
can reclaim space even if the underlying device doesn't support trim. It is
my understanding that all thin pools should support trim even if the
underlying device doesn't. (please correct me if I'm wrong here)
I have one centos server that does support trim and everything is working
correctly but any
2016 Aug 12
2
Re: [PATCH 1/2] v2v: Make fstrim warning clearer (RHBZ#1366456).
On Fri, Aug 12, 2016 at 04:50:31PM +0200, Pino Toscano wrote:
> On Friday, 12 August 2016 10:37:29 CEST Richard W.M. Jones wrote:
> > This reverts the change made for RHBZ#1168144. The warning is now
> > always displayed.
> >
> > It would be nice to make the warning actionable, but there is not a
> > lot that end users can do since fstrim is such a complex topic
2014 Oct 15
1
Re: Virt-v2v conversion issue
On Wed, Oct 15, 2014 at 12:03:26PM +0000, VONDRA Alain wrote:
> Rich,
> The results of the guestfish command :
>
> ><fs> part-list /dev/sda
> [0] = {
> part_num: 1
> part_start: 1048576
> part_end: 85906685951
> part_size: 85905637376
> }
> ><fs> part-list /dev/sdb
> [0] = {
> part_num: 1
> part_start: 32256
> part_end:
2014 Nov 01
2
fstrim support in libvirt/qemu guests
Hi,
I'm trying to find out how to enable fstrim support for libvirt/qemu
guests. Specifically I'm trying to enable this on a CentOS 7 host (qemu
1.5). I searched the web but only found very vague information and no
clear documentation on the requirements or how to modify the guest xml
to enable discard/fstrim support.
Can someone point me in the right direction?
Regards,
Dennis
2014 Nov 03
2
Re: fstrim support in libvirt/qemu guests
On Mon, Nov 3, 2014 at 4:24 PM, Michal Privoznik <mprivozn@redhat.com> wrote:
> On 01.11.2014 05:30, Dennis Jacobfeuerborn wrote:
>>
>> Hi,
>> I'm trying to find out how to enable fstrim support for libvirt/qemu
>> guests. Specifically I'm trying to enable this on a CentOS 7 host (qemu
>> 1.5). I searched the web but only found very vague information
2014 Nov 10
1
syslinux -> Windows 2008R2
Hello,
I'm trying to use a current Syslinux setup, that is working well for
service linux based distros, to serve up recent Windows server installs.
As I'm new here I'm reluctant to make any changes to the environment unless
I've exhausted the current options.
We are running Syslinux 3.71 on a Gentoo server and all the DHCP and tftpd
are "working as they should".
What