* [pve-devel] [PATCH installer v3 1/4] proxmox: add zfs module for retrieving importable zpool info
2024-07-11 11:57 [pve-devel] [PATCH installer v3 0/4] add check/rename for already-existing ZFS rpool Christoph Heiss
@ 2024-07-11 11:57 ` Christoph Heiss
2024-07-11 11:57 ` [pve-devel] [PATCH installer v3 2/4] test: add test cases for new zfs module Christoph Heiss
` (4 subsequent siblings)
5 siblings, 0 replies; 10+ messages in thread
From: Christoph Heiss @ 2024-07-11 11:57 UTC (permalink / raw)
To: pve-devel
Signed-off-by: Christoph Heiss <c.heiss@proxmox.com>
---
Changes v2 -> v3:
* no changes
Changes v1 -> v2:
* incorporated Aarons suggestion to use anonymous arrays instead
* added documentation
* renamed parsing function parse_pool_list -> zpool_import_parse_output
* split out tests into separate patch
Proxmox/Makefile | 1 +
Proxmox/Sys/ZFS.pm | 93 ++++++++++++++++++++++++++++++++++++++++++++++
2 files changed, 94 insertions(+)
create mode 100644 Proxmox/Sys/ZFS.pm
diff --git a/Proxmox/Makefile b/Proxmox/Makefile
index 9561d9b..035626b 100644
--- a/Proxmox/Makefile
+++ b/Proxmox/Makefile
@@ -17,6 +17,7 @@ PERL_MODULES=\
Sys/File.pm \
Sys/Net.pm \
Sys/Udev.pm \
+ Sys/ZFS.pm \
UI.pm \
UI/Base.pm \
UI/Gtk3.pm \
diff --git a/Proxmox/Sys/ZFS.pm b/Proxmox/Sys/ZFS.pm
new file mode 100644
index 0000000..9232d1a
--- /dev/null
+++ b/Proxmox/Sys/ZFS.pm
@@ -0,0 +1,93 @@
+package Proxmox::Sys::ZFS;
+
+use strict;
+use warnings;
+
+use Proxmox::Sys::Command qw(run_command);
+
+use base qw(Exporter);
+our @EXPORT_OK = qw(get_exported_pools);
+
+# Parses the output of running `zpool import`, which shows all importable
+# ZFS pools.
+# Unfortunately, `zpool` does not support JSON or any other machine-readable
+# format for output, so we have to do it the hard way.
+#
+# Example output of `zpool import` looks like this:
+#
+# root@proxmox:/# zpool import
+# pool: testpool
+# id: 4958685680270539150
+# state: ONLINE
+# action: The pool can be imported using its name or numeric identifier.
+# config:
+#
+# testpool ONLINE
+# vdc ONLINE
+# vdd ONLINE
+#
+# pool: rpool
+# id: 9412322616744093413
+# state: ONLINE
+# status: The pool was last accessed by another system.
+# action: The pool can be imported using its name or numeric identifier and
+# the '-f' flag.
+# see: https://openzfs.github.io/openzfs-docs/msg/ZFS-8000-EY
+# config:
+#
+# rpool ONLINE
+# mirror-0 ONLINE
+# vda3 ONLINE
+# vdb3 ONLINE
+#
+sub zpool_import_parse_output {
+ my ($fh) = @_;
+
+ my $pools = []; # all found pools
+ my $pool = {}; # last found pool in output
+
+ while (my $line = <$fh>) {
+ # first, if we find the start of a new pool, add it to the list with
+ # its name
+ if ($line =~ /^\s+pool: (.+)$/) {
+ # push the previous parsed pool to the result list
+ push @$pools, $pool if %$pool;
+ $pool = { name => $1 };
+ next;
+ }
+
+ # ignore any (garbage) output before the actual list, just in case
+ next if !%$pool;
+
+ # add any possibly-useful attribute to the last (aka. current) pool
+ if ($line =~ /^\s*(id|state|status|action): (.+)$/) {
+ chomp($pool->{$1} = $2);
+ next;
+ }
+ }
+
+ # add the final parsed pool to the list
+ push @$pools, $pool if %$pool;
+ return $pools;
+}
+
+# Returns an array of all importable ZFS pools on the system.
+# Each entry is a hash of the format:
+#
+# {
+# name => '<pool name>',
+# id => <numeric pool-id>,
+# /* see also zpool_state_to_name() in lib/libzfs/libzfs_pool.c /*
+# state => 'OFFLINE' | 'REMOVED' | 'FAULTED' | 'SPLIT' | 'UNAVAIL' \
+# | 'FAULTED' | 'DEGRADED' | 'ONLINE',
+# status => '<human-readable status string>', optional
+# action => '<human-readable action string>', optional
+# }
+sub get_exported_pools {
+ my $raw = run_command(['zpool', 'import']);
+ open (my $fh, '<', \$raw) or die 'failed to open in-memory stream';
+
+ return zpool_import_parse_output($fh);
+}
+
+1;
--
2.45.1
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^ permalink raw reply [flat|nested] 10+ messages in thread* [pve-devel] [PATCH installer v3 2/4] test: add test cases for new zfs module
2024-07-11 11:57 [pve-devel] [PATCH installer v3 0/4] add check/rename for already-existing ZFS rpool Christoph Heiss
2024-07-11 11:57 ` [pve-devel] [PATCH installer v3 1/4] proxmox: add zfs module for retrieving importable zpool info Christoph Heiss
@ 2024-07-11 11:57 ` Christoph Heiss
2024-07-11 11:57 ` [pve-devel] [PATCH installer v3 3/4] install: config: rename option lvm_auto_rename -> existing_storage_auto_rename Christoph Heiss
` (3 subsequent siblings)
5 siblings, 0 replies; 10+ messages in thread
From: Christoph Heiss @ 2024-07-11 11:57 UTC (permalink / raw)
To: pve-devel
Signed-off-by: Christoph Heiss <c.heiss@proxmox.com>
---
Changes v2 -> v3:
* no changes
Changes v1 -> v2:
* new patch, split out from patch #1
* rewrote tests to use a pre-defined input instead, thus being able
to enable the tests unconditionally
test/Makefile | 7 ++++-
test/zfs-get-pool-list.pl | 57 +++++++++++++++++++++++++++++++++++++++
2 files changed, 63 insertions(+), 1 deletion(-)
create mode 100755 test/zfs-get-pool-list.pl
diff --git a/test/Makefile b/test/Makefile
index 99bf14e..c473af8 100644
--- a/test/Makefile
+++ b/test/Makefile
@@ -3,12 +3,13 @@ all:
export PERLLIB=..
.PHONY: check
-check: test-zfs-arc-max test-run-command test-parse-fqdn test-ui2-stdio
+check: test-zfs-arc-max test-run-command test-parse-fqdn test-ui2-stdio test-zfs-get-pool-list
.PHONY: test-zfs-arc-max
test-zfs-arc-max:
./zfs-arc-max.pl
+.PHONY: test-run-command
test-run-command:
./run-command.pl
@@ -19,3 +20,7 @@ test-parse-fqdn:
.PHONY: test-ui2-stdio
test-ui2-stdio:
./ui2-stdio.pl
+
+.PHONY: test-zfs-get-pool-list
+test-zfs-get-pool-list:
+ ./zfs-get-pool-list.pl
diff --git a/test/zfs-get-pool-list.pl b/test/zfs-get-pool-list.pl
new file mode 100755
index 0000000..34e6b20
--- /dev/null
+++ b/test/zfs-get-pool-list.pl
@@ -0,0 +1,57 @@
+#!/usr/bin/perl
+
+use strict;
+use warnings;
+
+use File::Temp;
+use Test::More tests => 8;
+
+use Proxmox::Sys::ZFS;
+use Proxmox::UI;
+
+my $log_file = File::Temp->new();
+Proxmox::Log::init($log_file->filename);
+
+Proxmox::UI::init_stdio();
+
+our $ZPOOL_IMPORT_TEST_OUTPUT = <<EOT;
+ pool: testpool
+ id: 4958685680270539150
+ state: ONLINE
+ action: The pool can be imported using its name or numeric identifier.
+ config:
+
+ testpool ONLINE
+ vdc ONLINE
+ vdd ONLINE
+
+ pool: rpool
+ id: 9412322616744093413
+ state: FAULTED
+status: The pool was last accessed by another system.
+ action: The pool can be imported using its name or numeric identifier and
+ the '-f' flag.
+ see: https://openzfs.github.io/openzfs-docs/msg/ZFS-8000-EY
+ config:
+
+ rpool ONLINE
+ mirror-0 ONLINE
+ vda3 ONLINE
+ vdb3 ONLINE
+EOT
+
+my $pools = {
+ testpool => { id => '4958685680270539150', state => 'ONLINE' },
+ rpool => { id => '9412322616744093413', state => 'FAULTED' },
+};
+
+open(my $fh, '<', \$ZPOOL_IMPORT_TEST_OUTPUT);
+my $result = Proxmox::Sys::ZFS::zpool_import_parse_output($fh);
+while (my ($name, $info) = each %$pools) {
+ my ($p) = grep { $_->{name} eq $name } @$result;
+ ok(defined($p), "pool $name was found");
+ is($p->{id}, $info->{id}, "pool $name has correct id");
+ is($p->{state}, $info->{state}, "pool $name has correct state");
+ like($p->{action}, qr/^The pool can be imported using its name or numeric identifier/,
+ "pool $name can be imported");
+}
--
2.45.1
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^ permalink raw reply [flat|nested] 10+ messages in thread* [pve-devel] [PATCH installer v3 3/4] install: config: rename option lvm_auto_rename -> existing_storage_auto_rename
2024-07-11 11:57 [pve-devel] [PATCH installer v3 0/4] add check/rename for already-existing ZFS rpool Christoph Heiss
2024-07-11 11:57 ` [pve-devel] [PATCH installer v3 1/4] proxmox: add zfs module for retrieving importable zpool info Christoph Heiss
2024-07-11 11:57 ` [pve-devel] [PATCH installer v3 2/4] test: add test cases for new zfs module Christoph Heiss
@ 2024-07-11 11:57 ` Christoph Heiss
2024-07-11 11:57 ` [pve-devel] [PATCH installer v3 4/4] low-level: install: check for already-existing `rpool` on install Christoph Heiss
` (2 subsequent siblings)
5 siblings, 0 replies; 10+ messages in thread
From: Christoph Heiss @ 2024-07-11 11:57 UTC (permalink / raw)
To: pve-devel
As this is an internal option for the low-level installer anyway, no
real functional changes here.
Signed-off-by: Christoph Heiss <c.heiss@proxmox.com>
---
Changes v2 -> v3:
* new patch
Proxmox/Install.pm | 2 +-
Proxmox/Install/Config.pm | 6 +++---
proxmox-auto-installer/src/utils.rs | 2 +-
.../tests/resources/parse_answer/disk_match.json | 2 +-
.../tests/resources/parse_answer/disk_match_all.json | 2 +-
.../tests/resources/parse_answer/disk_match_any.json | 2 +-
.../tests/resources/parse_answer/minimal.json | 2 +-
.../tests/resources/parse_answer/nic_matching.json | 2 +-
.../tests/resources/parse_answer/specific_nic.json | 2 +-
.../tests/resources/parse_answer/zfs.json | 2 +-
proxmox-installer-common/src/setup.rs | 2 +-
proxmox-tui-installer/src/setup.rs | 2 +-
12 files changed, 14 insertions(+), 14 deletions(-)
diff --git a/Proxmox/Install.pm b/Proxmox/Install.pm
index c0f8955..7342e4b 100644
--- a/Proxmox/Install.pm
+++ b/Proxmox/Install.pm
@@ -384,7 +384,7 @@ sub ask_existing_vg_rename_or_abort {
$vg->{new_vgname} = "$vgname-OLD-$short_uid";
}
- my $response_ok = Proxmox::Install::Config::get_lvm_auto_rename();
+ my $response_ok = Proxmox::Install::Config::get_existing_storage_auto_rename();
if (!$response_ok) {
my $message = "Detected existing '$vgname' Volume Group(s)! Do you want to:\n";
diff --git a/Proxmox/Install/Config.pm b/Proxmox/Install/Config.pm
index ecd8a74..e449039 100644
--- a/Proxmox/Install/Config.pm
+++ b/Proxmox/Install/Config.pm
@@ -82,7 +82,7 @@ my sub init_cfg {
# TODO: single disk selection config
target_hd => undef,
disk_selection => {},
- lvm_auto_rename => 0,
+ existing_storage_auto_rename => 0,
# locale
country => $country,
@@ -244,7 +244,7 @@ sub get_dns { return get('dns'); }
sub set_target_cmdline { set_key('target_cmdline', $_[0]); }
sub get_target_cmdline { return get('target_cmdline'); }
-sub set_lvm_auto_rename { set_key('lvm_auto_rename', $_[0]); }
-sub get_lvm_auto_rename { return get('lvm_auto_rename'); }
+sub set_existing_storage_auto_rename { set_key('existing_storage_auto_rename', $_[0]); }
+sub get_existing_storage_auto_rename { return get('existing_storage_auto_rename'); }
1;
diff --git a/proxmox-auto-installer/src/utils.rs b/proxmox-auto-installer/src/utils.rs
index 202ad41..cc47f5f 100644
--- a/proxmox-auto-installer/src/utils.rs
+++ b/proxmox-auto-installer/src/utils.rs
@@ -328,7 +328,7 @@ pub fn parse_answer(
zfs_opts: None,
target_hd: None,
disk_selection: BTreeMap::new(),
- lvm_auto_rename: 1,
+ existing_storage_auto_rename: 1,
country: answer.global.country.clone(),
timezone: answer.global.timezone.clone(),
diff --git a/proxmox-auto-installer/tests/resources/parse_answer/disk_match.json b/proxmox-auto-installer/tests/resources/parse_answer/disk_match.json
index 3a117b6..2618fd4 100644
--- a/proxmox-auto-installer/tests/resources/parse_answer/disk_match.json
+++ b/proxmox-auto-installer/tests/resources/parse_answer/disk_match.json
@@ -10,7 +10,7 @@
"8": "8",
"9": "9"
},
- "lvm_auto_rename": 1,
+ "existing_storage_auto_rename": 1,
"filesys": "zfs (RAID10)",
"gateway": "192.168.1.1",
"hdsize": 223.57088470458984,
diff --git a/proxmox-auto-installer/tests/resources/parse_answer/disk_match_all.json b/proxmox-auto-installer/tests/resources/parse_answer/disk_match_all.json
index 5325fc3..6cfb96a 100644
--- a/proxmox-auto-installer/tests/resources/parse_answer/disk_match_all.json
+++ b/proxmox-auto-installer/tests/resources/parse_answer/disk_match_all.json
@@ -7,7 +7,7 @@
"disk_selection": {
"9": "9"
},
- "lvm_auto_rename": 1,
+ "existing_storage_auto_rename": 1,
"filesys": "zfs (RAID0)",
"gateway": "192.168.1.1",
"hdsize": 223.57088470458984,
diff --git a/proxmox-auto-installer/tests/resources/parse_answer/disk_match_any.json b/proxmox-auto-installer/tests/resources/parse_answer/disk_match_any.json
index 18e22d1..1921b34 100644
--- a/proxmox-auto-installer/tests/resources/parse_answer/disk_match_any.json
+++ b/proxmox-auto-installer/tests/resources/parse_answer/disk_match_any.json
@@ -14,7 +14,7 @@
"8": "8",
"9": "9"
},
- "lvm_auto_rename": 1,
+ "existing_storage_auto_rename": 1,
"filesys": "zfs (RAID10)",
"gateway": "192.168.1.1",
"hdsize": 2980.820640563965,
diff --git a/proxmox-auto-installer/tests/resources/parse_answer/minimal.json b/proxmox-auto-installer/tests/resources/parse_answer/minimal.json
index bb72713..38112e4 100644
--- a/proxmox-auto-installer/tests/resources/parse_answer/minimal.json
+++ b/proxmox-auto-installer/tests/resources/parse_answer/minimal.json
@@ -7,7 +7,7 @@
"filesys": "ext4",
"gateway": "192.168.1.1",
"hdsize": 223.57088470458984,
- "lvm_auto_rename": 1,
+ "existing_storage_auto_rename": 1,
"hostname": "pveauto",
"keymap": "de",
"mailto": "mail@no.invalid",
diff --git a/proxmox-auto-installer/tests/resources/parse_answer/nic_matching.json b/proxmox-auto-installer/tests/resources/parse_answer/nic_matching.json
index de94165..6eb3b8a 100644
--- a/proxmox-auto-installer/tests/resources/parse_answer/nic_matching.json
+++ b/proxmox-auto-installer/tests/resources/parse_answer/nic_matching.json
@@ -7,7 +7,7 @@
"filesys": "ext4",
"gateway": "10.10.10.1",
"hdsize": 223.57088470458984,
- "lvm_auto_rename": 1,
+ "existing_storage_auto_rename": 1,
"hostname": "pveauto",
"keymap": "de",
"mailto": "mail@no.invalid",
diff --git a/proxmox-auto-installer/tests/resources/parse_answer/specific_nic.json b/proxmox-auto-installer/tests/resources/parse_answer/specific_nic.json
index 5b4fcfc..9791535 100644
--- a/proxmox-auto-installer/tests/resources/parse_answer/specific_nic.json
+++ b/proxmox-auto-installer/tests/resources/parse_answer/specific_nic.json
@@ -7,7 +7,7 @@
"filesys": "ext4",
"gateway": "10.10.10.1",
"hdsize": 223.57088470458984,
- "lvm_auto_rename": 1,
+ "existing_storage_auto_rename": 1,
"hostname": "pveauto",
"keymap": "de",
"mailto": "mail@no.invalid",
diff --git a/proxmox-auto-installer/tests/resources/parse_answer/zfs.json b/proxmox-auto-installer/tests/resources/parse_answer/zfs.json
index 65724a8..85049cb 100644
--- a/proxmox-auto-installer/tests/resources/parse_answer/zfs.json
+++ b/proxmox-auto-installer/tests/resources/parse_answer/zfs.json
@@ -8,7 +8,7 @@
"6": "6",
"7": "7"
},
- "lvm_auto_rename": 1,
+ "existing_storage_auto_rename": 1,
"filesys": "zfs (RAID1)",
"gateway": "192.168.1.1",
"hdsize": 80.0,
diff --git a/proxmox-installer-common/src/setup.rs b/proxmox-installer-common/src/setup.rs
index 64d05af..3082e8c 100644
--- a/proxmox-installer-common/src/setup.rs
+++ b/proxmox-installer-common/src/setup.rs
@@ -479,7 +479,7 @@ pub struct InstallConfig {
#[serde(skip_serializing_if = "BTreeMap::is_empty")]
pub disk_selection: BTreeMap<String, String>,
- pub lvm_auto_rename: usize,
+ pub existing_storage_auto_rename: usize,
pub country: String,
pub timezone: String,
diff --git a/proxmox-tui-installer/src/setup.rs b/proxmox-tui-installer/src/setup.rs
index 8c01e42..02d9ece 100644
--- a/proxmox-tui-installer/src/setup.rs
+++ b/proxmox-tui-installer/src/setup.rs
@@ -17,7 +17,7 @@ impl From<InstallerOptions> for InstallConfig {
zfs_opts: None,
target_hd: None,
disk_selection: BTreeMap::new(),
- lvm_auto_rename: 0,
+ existing_storage_auto_rename: 0,
country: options.timezone.country,
timezone: options.timezone.timezone,
--
2.45.1
_______________________________________________
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^ permalink raw reply [flat|nested] 10+ messages in thread* [pve-devel] [PATCH installer v3 4/4] low-level: install: check for already-existing `rpool` on install
2024-07-11 11:57 [pve-devel] [PATCH installer v3 0/4] add check/rename for already-existing ZFS rpool Christoph Heiss
` (2 preceding siblings ...)
2024-07-11 11:57 ` [pve-devel] [PATCH installer v3 3/4] install: config: rename option lvm_auto_rename -> existing_storage_auto_rename Christoph Heiss
@ 2024-07-11 11:57 ` Christoph Heiss
2024-07-12 9:36 ` Aaron Lauterer
2024-07-12 9:42 ` [pve-devel] [PATCH installer v3 0/4] add check/rename for already-existing ZFS rpool Aaron Lauterer
2024-07-16 8:33 ` Christoph Heiss
5 siblings, 1 reply; 10+ messages in thread
From: Christoph Heiss @ 2024-07-11 11:57 UTC (permalink / raw)
To: pve-devel
.. much in the same manner as the detection for LVM works.
zpools can only be renamed by importing them with a new name, so
unfortunately the import-export dance is needed.
Signed-off-by: Christoph Heiss <c.heiss@proxmox.com>
---
Changes v2 -> v3:
* skip rename prompt in auto-install mode
Changes v1 -> v2:
* use unique pool id for renaming instead of generating random id
ourselves
* moved renaming functionality to own subroutine in new
Proxmox::Sys::ZFS module
Proxmox/Install.pm | 33 +++++++++++++++++++++++++++++++++
Proxmox/Sys/ZFS.pm | 20 ++++++++++++++++++--
2 files changed, 51 insertions(+), 2 deletions(-)
diff --git a/Proxmox/Install.pm b/Proxmox/Install.pm
index 7342e4b..ba699fa 100644
--- a/Proxmox/Install.pm
+++ b/Proxmox/Install.pm
@@ -16,6 +16,7 @@ use Proxmox::Install::StorageConfig;
use Proxmox::Sys::Block qw(get_cached_disks wipe_disk partition_bootable_disk);
use Proxmox::Sys::Command qw(run_command syscmd);
use Proxmox::Sys::File qw(file_read_firstline file_write_all);
+use Proxmox::Sys::ZFS;
use Proxmox::UI;
# TODO: move somewhere better?
@@ -169,9 +170,41 @@ sub btrfs_create {
syscmd($cmd);
}
+sub zfs_ask_existing_zpool_rename {
+ my ($pool_name) = @_;
+
+ # At this point, no pools should be imported/active
+ my $exported_pools = Proxmox::Sys::ZFS::get_exported_pools();
+
+ foreach (@$exported_pools) {
+ next if $_->{name} ne $pool_name || $_->{state} ne 'ONLINE';
+ my $renamed_pool = "$_->{name}-OLD-$_->{id}";
+
+ my $response_ok = Proxmox::Install::Config::get_existing_storage_auto_rename();
+ if (!$response_ok) {
+ $response_ok = Proxmox::UI::prompt(
+ "A ZFS pool named '$_->{name}' (id $_->{id}) already exists on the system.\n\n" .
+ "Do you want to rename the pool to '$renamed_pool' before continuing " .
+ "or cancel the installation?"
+ );
+ }
+
+ # Import the pool using its id, as that is unique and works even if there are
+ # multiple zpools with the same name.
+ if ($response_ok) {
+ Proxmox::Sys::ZFS::rename_pool($_->{id}, $renamed_pool);
+ } else {
+ warn "Canceled installation as requested by user, due to already existing ZFS pool '$pool_name'\n";
+ die "\n"; # causes abort without re-showing an error dialogue
+ }
+ }
+}
+
sub zfs_create_rpool {
my ($vdev, $pool_name, $root_volume_name) = @_;
+ zfs_ask_existing_zpool_rename($pool_name);
+
my $iso_env = Proxmox::Install::ISOEnv::get();
my $zfs_opts = Proxmox::Install::Config::get_zfs_opt();
diff --git a/Proxmox/Sys/ZFS.pm b/Proxmox/Sys/ZFS.pm
index 9232d1a..c5a807e 100644
--- a/Proxmox/Sys/ZFS.pm
+++ b/Proxmox/Sys/ZFS.pm
@@ -3,10 +3,10 @@ package Proxmox::Sys::ZFS;
use strict;
use warnings;
-use Proxmox::Sys::Command qw(run_command);
+use Proxmox::Sys::Command qw(run_command syscmd);
use base qw(Exporter);
-our @EXPORT_OK = qw(get_exported_pools);
+our @EXPORT_OK = qw(get_exported_pools rename_pool);
# Parses the output of running `zpool import`, which shows all importable
# ZFS pools.
@@ -90,4 +90,20 @@ sub get_exported_pools {
return zpool_import_parse_output($fh);
}
+# Renames a importable ZFS pool by importing it with a new name and then
+# exporting again.
+#
+# Arguments:
+#
+# $poolid - Unique, numeric identifier of the pool to rename
+# $new_name - New name for the pool
+sub rename_pool {
+ my ($poolid, $new_name) = @_;
+
+ syscmd("zpool import -f $poolid $new_name") == 0 ||
+ die "failed to import zfs pool with id '$poolid' with new name '$new_name'\n";
+ syscmd("zpool export $new_name") == 0 ||
+ warn "failed to export renamed zfs pool '$new_name'\n";
+}
+
1;
--
2.45.1
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