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Date: Mon, 1 Mar 2021 11:18:51 +0100 (CET)
From: Dietmar Maurer <dietmar@proxmox.com>
To: Proxmox VE development discussion <pve-devel@lists.proxmox.com>,
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Subject: Re: [pve-devel] [PATCH qemu-server] fix #3324: clone disk: use
larger blocksize for EFI disk when possible
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> >>> diff --git a/PVE/QemuServer.pm b/PVE/QemuServer.pm
> >>> index f401baf..e579cdf 100644
> >>> --- a/PVE/QemuServer.pm
> >>> +++ b/PVE/QemuServer.pm
> >>> @@ -6991,7 +6991,15 @@ sub clone_disk {
> >>> =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 # that is give=
n by the OVMF_VARS.fd
> >>> =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 my $src_path =
=3D PVE::Storage::path($storecfg, $drive->{file});
> >>> =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 my $dst_path =
=3D PVE::Storage::path($storecfg, $newvolid);
> >>> -=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 run_command(['qemu-img', =
'dd', '-n', '-O', $dst_format,=20
> >>> "bs=3D1", "count=3D$size",
> >>> +
> >>> +=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 # Ceph doesn't like too s=
mall blocksize, see bug #3324
> >>> +=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 my $bs =3D 1;
> >>> +=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 while ($bs < $size && $bs=
< 1024 && $size % $bs =3D=3D 0) {
> >>> +=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 $=
bs *=3D 2;
> >>> +=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 }
now, $size % $bs !=3D 0
I guess this is wrong...
> >>> +=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 my $count =3D $size / $bs=
;
> >>> +
> >>> +=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 run_command(['qemu-img', =
'dd', '-n', '-O', $dst_format,=20
> >>> "bs=3D$bs", "count=3D$count",
> >>> =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=
=A0=C2=A0 "if=3D$src_path", "of=3D$dst_path"]);
> >>> =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 } else {
> >>> =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 qemu_img_conve=
rt($drive->{file}, $newvolid, $size,=20
> >>> $snapname, $sparseinit);
> >>>
>=20
>=20
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