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drive: remove ancient 'cow' from formats

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The format was dropped in QEMU binary version 2.2 with commit
550830f935 ("block: delete cow block driver").

Very old backups might still include this format as a hint (the data
in the backup is present in raw/chunk format in any case), but that is
not an issue. Restore already checks that the target storage supports
a given format and defaults to the default format of the storage if
the hint does not apply.

Signed-off-by: Fiona Ebner <f.ebner@proxmox.com>
Acked-by: Fabian Grünbichler <f.gruenbichler@proxmox.com>
Reviewed-by: Fabian Grünbichler <f.gruenbichler@proxmox.com>
This commit is contained in:
Fiona Ebner 2025-03-05 11:49:17 +01:00 committed by Thomas Lamprecht
parent c86b598198
commit b2aa996f43
1 changed files with 2 additions and 2 deletions
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4
PVE/QemuServer/Drive.pm
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@ -26,11 +26,11 @@ parse_drive
print_drive
);
our $QEMU_FORMAT_RE = qr/raw|cow|qcow|qcow2|qed|vmdk|cloop/;
our $QEMU_FORMAT_RE = qr/raw|qcow|qcow2|qed|vmdk|cloop/;
PVE::JSONSchema::register_standard_option('pve-qm-image-format', {
type => 'string',
enum => [qw(raw cow qcow qed qcow2 vmdk cloop)],
enum => [qw(raw qcow qed qcow2 vmdk cloop)],
description => "The drive's backing file's data format.",
optional => 1,
});