archinstall
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Published
20 hours ago •
archlinux
archlinux
lsblk: /mnt/var/log: not a block device
Which ISO version are you using?
archlinux-2025.06.01-x86_64.iso
The installation log
[2025-06-14 15:10:53] - DEBUG - Unmounting all existing partitions: /dev/nvme0n1
[2025-06-14 15:10:53] - DEBUG - Unmounting: /dev/nvme0n1p1
[2025-06-14 15:10:53] - DEBUG - Unmounting: /dev/nvme0n1p2
[2025-06-14 15:10:53] - DEBUG - Unmounting /mnt/var/log
[2025-06-14 15:10:53] - DEBUG - Error calling lsblk: lsblk: /mnt/var/log: not a block device
{
"blockdevices": [
]
}
[2025-06-14 15:10:53] - ERROR - Traceback (most recent call last):
File "/usr/lib/python3.13/site-packages/archinstall/lib/disk/utils.py", line 32, in _fetch_lsblk_info
worker = SysCommand(cmd)
File "/usr/lib/python3.13/site-packages/archinstall/lib/general.py", line 336, in __init__
self.create_session()
~~~~~~~~~~~~~~~~~~~^^
File "/usr/lib/python3.13/site-packages/archinstall/lib/general.py", line 376, in create_session
with SysCommandWorker(
~~~~~~~~~~~~~~~~^
self.cmd,
^^^^^^^^^
...<3 lines>...
working_directory=self.working_directory,
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
) as session:
^
File "/usr/lib/python3.13/site-packages/archinstall/lib/general.py", line 194, in __exit__
raise SysCallError(
...<3 lines>...
)
archinstall.lib.exceptions.SysCallError: ['/usr/bin/lsblk', '--json', '--bytes', '--output', 'name,path,pkname,log-sec,size,pttype,ptuuid,rota,tran,partn,partuuid,parttype,uuid,fstype,fsver,fsavail,fsuse%,type,mountpoint,mountpoints,fsroots', '/mnt/var/log'] exited with abnormal exit code [32]: lsblk: /mnt/var/log: not a block device
{
"blockdevices": [
]
}
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/usr/lib/python3.13/site-packages/archinstall/__init__.py", line 103, in run_as_a_module
rc = main()
File "/usr/lib/python3.13/site-packages/archinstall/__init__.py", line 93, in main
importlib.import_module(mod_name)
~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^
File "/usr/lib/python3.13/importlib/__init__.py", line 88, in import_module
return _bootstrap._gcd_import(name[level:], package, level)
~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "<frozen importlib._bootstrap>", line 1387, in _gcd_import
File "<frozen importlib._bootstrap>", line 1360, in _find_and_load
File "<frozen importlib._bootstrap>", line 1331, in _find_and_load_unlocked
File "<frozen importlib._bootstrap>", line 935, in _load_unlocked
File "<frozen importlib._bootstrap_external>", line 1026, in exec_module
File "<frozen importlib._bootstrap>", line 488, in _call_with_frames_removed
File "/usr/lib/python3.13/site-packages/archinstall/scripts/guided.py", line 197, in <module>
guided()
~~~~~~^^
File "/usr/lib/python3.13/site-packages/archinstall/scripts/guided.py", line 192, in guided
fs_handler.perform_filesystem_operations()
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^
File "/usr/lib/python3.13/site-packages/archinstall/lib/disk/filesystem.py", line 55, in perform_filesystem_operations
device_handler.umount_all_existing(mod.device_path)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^
File "/usr/lib/python3.13/site-packages/archinstall/lib/disk/device_handler.py", line 689, in umount_all_existing
Luks2(partition.path).lock()
~~~~~~~~~~~~~~~~~~~~~~~~~~^^
File "/usr/lib/python3.13/site-packages/archinstall/lib/luks.py", line 175, in lock
umount(mountpoint, recursive=True)
~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/lib/python3.13/site-packages/archinstall/lib/disk/utils.py", line 114, in umount
lsblk_info = get_lsblk_info(mountpoint)
File "/usr/lib/python3.13/site-packages/archinstall/lib/disk/utils.py", line 52, in get_lsblk_info
infos = _fetch_lsblk_info(dev_path, reverse=reverse, full_dev_path=full_dev_path)
File "/usr/lib/python3.13/site-packages/archinstall/lib/disk/utils.py", line 39, in _fetch_lsblk_info
raise DiskError(f'Failed to read disk "{dev_path}" with lsblk')
archinstall.lib.exceptions.DiskError: Failed to read disk "/mnt/var/log" with lsblk
describe the problem
[2025-06-14 15:10:48] - DEBUG - -- Chosen configuration --
[2025-06-14 15:10:48] - DEBUG - {
"archinstall-language": "English",
"audio_config": null,
"bootloader": "Systemd-boot",
"custom_commands": [],
"disk_config": {
"btrfs_options": {
"snapshot_config": {
"type": "Snapper"
}
},
"config_type": "default_layout",
"device_modifications": [
{
"device": "/dev/nvme0n1",
"partitions": [
{
"btrfs": [],
"dev_path": null,
"flags": [
"boot",
"esp"
],
"fs_type": "fat32",
"mount_options": [],
"mountpoint": "/boot",
"obj_id": "ad229693-bbde-48c7-be6b-4ed1c645c5bd",
"size": {
"sector_size": {
"unit": "B",
"value": 512
},
"unit": "GiB",
"value": 1
},
"start": {
"sector_size": {
"unit": "B",
"value": 512
},
"unit": "MiB",
"value": 1
},
"status": "create",
"type": "primary"
},
{
"btrfs": [
{
"mountpoint": "/",
"name": "@"
},
{
"mountpoint": "/home",
"name": "@home"
},
{
"mountpoint": "/var/log",
"name": "@log"
},
{
"mountpoint": "/var/cache/pacman/pkg",
"name": "@pkg"
}
],
"dev_path": null,
"flags": [],
"fs_type": "btrfs",
"mount_options": [
"compress=zstd"
],
"mountpoint": null,
"obj_id": "eb165375-0d05-4ddb-b52d-4c707d2e636a",
"size": {
"sector_size": {
"unit": "B",
"value": 512
},
"unit": "B",
"value": 1999323004928
},
"start": {
"sector_size": {
"unit": "B",
"value": 512
},
"unit": "B",
"value": 1074790400
},
"status": "create",
"type": "primary"
}
],
"wipe": true
}
],
"disk_encryption": {
"encryption_type": "luks",
"lvm_volumes": [],
"partitions": [
"eb165375-0d05-4ddb-b52d-4c707d2e636a"
]
}
},
"hostname": "mentat",
"kernels": [
"linux"
],
"locale_config": {
"kb_layout": "us",
"sys_enc": "UTF-8",
"sys_lang": "en_US.UTF-8"
},
"mirror_config": {
"custom_repositories": [],
"custom_servers": [],
"mirror_regions": {
"United States": [
"http://mirrors.rit.edu/archlinux/$repo/os/$arch",
"https://mirrors.rit.edu/archlinux/$repo/os/$arch",
"http://mirror.umd.edu/archlinux/$repo/os/$arch",
"https://mirror.umd.edu/archlinux/$repo/os/$arch",
"http://ftp.osuosl.org/pub/archlinux/$repo/os/$arch",
"https://ftp.osuosl.org/pub/archlinux/$repo/os/$arch",
"http://mirrors.lug.mtu.edu/archlinux/$repo/os/$arch",
"https://mirrors.lug.mtu.edu/archlinux/$repo/os/$arch",
"http://mirrors.xmission.com/archlinux/$repo/os/$arch",
"http://mirrors.kernel.org/archlinux/$repo/os/$arch",
"https://mirrors.kernel.org/archlinux/$repo/os/$arch",
"http://mirrors.cat.pdx.edu/archlinux/$repo/os/$arch",
"http://mirror.sfo12.us.leaseweb.net/archlinux/$repo/os/$arch",
"http://mirror.wdc1.us.leaseweb.net/archlinux/$repo/os/$arch",
"https://mirror.sfo12.us.leaseweb.net/archlinux/$repo/os/$arch",
"https://mirror.wdc1.us.leaseweb.net/archlinux/$repo/os/$arch",
"http://mirrors.gigenet.com/archlinux/$repo/os/$arch",
"http://mirrors.liquidweb.com/archlinux/$repo/os/$arch",
"http://mirror.metrocast.net/archlinux/$repo/os/$arch",
"http://dfw.mirror.rackspace.com/archlinux/$repo/os/$arch",
"http://iad.mirror.rackspace.com/archlinux/$repo/os/$arch",
"http://ord.mirror.rackspace.com/archlinux/$repo/os/$arch",
"https://dfw.mirror.rackspace.com/archlinux/$repo/os/$arch",
"https://iad.mirror.rackspace.com/archlinux/$repo/os/$arch",
"https://ord.mirror.rackspace.com/archlinux/$repo/os/$arch",
"http://mirror.vtti.vt.edu/archlinux/$repo/os/$arch",
"http://arch.mirror.constant.com/$repo/os/$arch",
"https://arch.mirror.constant.com/$repo/os/$arch",
"http://mirrors.acm.wpi.edu/archlinux/$repo/os/$arch",
"http://mirrors.ocf.berkeley.edu/archlinux/$repo/os/$arch",
"https://mirrors.ocf.berkeley.edu/archlinux/$repo/os/$arch",
"http://arlm.tyzoid.com/$repo/os/$arch",
"http://mirror.math.princeton.edu/pub/archlinux/$repo/os/$arch",
"http://us.mirrors.cicku.me/archlinux/$repo/os/$arch",
"https://us.mirrors.cicku.me/archlinux/$repo/os/$arch",
"http://mirror.cs.vt.edu/pub/ArchLinux/$repo/os/$arch",
"http://mirrors.sonic.net/archlinux/$repo/os/$arch",
"https://mirrors.sonic.net/archlinux/$repo/os/$arch",
"http://distro.ibiblio.org/archlinux/$repo/os/$arch",
"http://repo.miserver.it.umich.edu/archlinux/$repo/os/$arch",
"http://mirrors.xtom.com/archlinux/$repo/os/$arch",
"https://mirrors.xtom.com/archlinux/$repo/os/$arch",
"http://mirror.siena.edu/archlinux/$repo/os/$arch",
"http://repo.ialab.dsu.edu/archlinux/$repo/os/$arch",
"https://repo.ialab.dsu.edu/archlinux/$repo/os/$arch",
"http://iad.mirrors.misaka.one/archlinux/$repo/os/$arch",
"https://iad.mirrors.misaka.one/archlinux/$repo/os/$arch",
"http://mirror.pit.teraswitch.com/archlinux/$repo/os/$arch",
"https://mirror.pit.teraswitch.com/archlinux/$repo/os/$arch",
"http://mirror.arizona.edu/archlinux/$repo/os/$arch",
"https://mirror.arizona.edu/archlinux/$repo/os/$arch",
"http://archmirror1.octyl.net/$repo/os/$arch",
"https://archmirror1.octyl.net/$repo/os/$arch",
"http://plug-mirror.rcac.purdue.edu/archlinux/$repo/os/$arch",
"https://plug-mirror.rcac.purdue.edu/archlinux/$repo/os/$arch",
"http://mirrors.mit.edu/archlinux/$repo/os/$arch",
"https://mirrors.mit.edu/archlinux/$repo/os/$arch",
"http://arch.hu.fo/archlinux/$repo/os/$arch",
"https://arch.hu.fo/archlinux/$repo/os/$arch",
"https://zxcvfdsa.com/arch/$repo/os/$arch",
"https://mirror.theash.xyz/arch/$repo/os/$arch",
"http://mirrors.bloomu.edu/archlinux/$repo/os/$arch",
"https://mirrors.bloomu.edu/archlinux/$repo/os/$arch",
"http://codingflyboy.mm.fcix.net/archlinux/$repo/os/$arch",
"http://coresite.mm.fcix.net/archlinux/$repo/os/$arch",
"http://forksystems.mm.fcix.net/archlinux/$repo/os/$arch",
"http://irltoolkit.mm.fcix.net/archlinux/$repo/os/$arch",
"http://mirror.fcix.net/archlinux/$repo/os/$arch",
"http://mnvoip.mm.fcix.net/archlinux/$repo/os/$arch",
"http://nnenix.mm.fcix.net/archlinux/$repo/os/$arch",
"http://nocix.mm.fcix.net/archlinux/$repo/os/$arch",
"http://ohioix.mm.fcix.net/archlinux/$repo/os/$arch",
"http://opencolo.mm.fcix.net/archlinux/$repo/os/$arch",
"http://ridgewireless.mm.fcix.net/archlinux/$repo/os/$arch",
"http://southfront.mm.fcix.net/archlinux/$repo/os/$arch",
"http://volico.mm.fcix.net/archlinux/$repo/os/$arch",
"http://ziply.mm.fcix.net/archlinux/$repo/os/$arch",
"https://codingflyboy.mm.fcix.net/archlinux/$repo/os/$arch",
"https://coresite.mm.fcix.net/archlinux/$repo/os/$arch",
"https://forksystems.mm.fcix.net/archlinux/$repo/os/$arch",
"https://irltoolkit.mm.fcix.net/archlinux/$repo/os/$arch",
"https://mirror.fcix.net/archlinux/$repo/os/$arch",
"https://mnvoip.mm.fcix.net/archlinux/$repo/os/$arch",
"https://nnenix.mm.fcix.net/archlinux/$repo/os/$arch",
"https://nocix.mm.fcix.net/archlinux/$repo/os/$arch",
"https://ohioix.mm.fcix.net/archlinux/$repo/os/$arch",
"https://opencolo.mm.fcix.net/archlinux/$repo/os/$arch",
"https://ridgewireless.mm.fcix.net/archlinux/$repo/os/$arch",
"https://southfront.mm.fcix.net/archlinux/$repo/os/$arch",
"https://volico.mm.fcix.net/archlinux/$repo/os/$arch",
"https://ziply.mm.fcix.net/archlinux/$repo/os/$arch",
"https://america.mirror.pkgbuild.com/$repo/os/$arch",
"https://losangeles.mirror.pkgbuild.com/$repo/os/$arch",
"http://mirrors.vectair.net/archlinux/$repo/os/$arch",
"https://mirrors.vectair.net/archlinux/$repo/os/$arch",
"https://arch.mirror.k0.ae/$repo/os/$arch",
"https://mirror.zackmyers.io/archlinux/$repo/os/$arch",
"http://mirror.fossable.org/archlinux/$repo/os/$arch",
"http://wcbmedia.io:8000/$repo/os/$arch",
"https://m.lqy.me/arch/$repo/os/$arch",
"http://mirror.adectra.com/archlinux/$repo/os/$arch",
"https://mirror.adectra.com/archlinux/$repo/os/$arch",
"https://arch.goober.cloud/$repo/os/$arch",
"http://mirrors.bjg.at/arch/$repo/os/$arch",
"https://mirrors.bjg.at/arch/$repo/os/$arch",
"https://mirror.pilotfiber.com/archlinux/$repo/os/$arch",
"http://mirrors.iu13.net/archlinux/$repo/os/$arch",
"https://mirrors.iu13.net/archlinux/$repo/os/$arch",
"http://mirror.colonelhosting.com/archlinux/$repo/os/$arch",
"https://mirror.colonelhosting.com/archlinux/$repo/os/$arch",
"http://us.arch.niranjan.co/$repo/os/$arch",
"https://us.arch.niranjan.co/$repo/os/$arch",
"http://mirror.hasphetica.win/archlinux/$repo/os/$arch",
"https://mirror.hasphetica.win/archlinux/$repo/os/$arch",
"https://arch.mirror.marcusspencer.us:4443/archlinux/$repo/os/$arch",
"https://us-mnz.soulharsh007.dev/archlinux/$repo/os/$arch",
"http://arch.miningtcup.me/$repo/os/$arch",
"https://arch.miningtcup.me/$repo/os/$arch",
"http://mirrors.smeal.xyz/arch-linux/$repo/os/$arch",
"https://mirrors.smeal.xyz/arch-linux/$repo/os/$arch",
"https://arch-mirror.brightlight.today/$repo/os/$arch",
"https://yonderly.org/mirrors/archlinux/$repo/os/$arch",
"https://mirrors.lahansons.com/archlinux/$repo/os/$arch",
"https://mirror.givebytes.net/archlinux/$repo/os/$arch",
"https://mirrors.shr.cx/arch/$repo/os/$arch"
]
},
"optional_repositories": []
},
"network_config": {
"type": "iso"
},
"ntp": true,
"packages": [],
"parallel_downloads": 0,
"services": [],
"swap": true,
"timezone": "US/Eastern",
"version": null
}
[2025-06-14 15:10:53] - DEBUG - Unmounting all existing partitions: /dev/nvme0n1
[2025-06-14 15:10:53] - DEBUG - Unmounting: /dev/nvme0n1p1
[2025-06-14 15:10:53] - DEBUG - Unmounting: /dev/nvme0n1p2
[2025-06-14 15:10:53] - DEBUG - Unmounting /mnt/var/log
[2025-06-14 15:10:53] - DEBUG - Error calling lsblk: lsblk: /mnt/var/log: not a block device
{
"blockdevices": [
]
}
[2025-06-14 15:10:53] - ERROR - Traceback (most recent call last):
File "/usr/lib/python3.13/site-packages/archinstall/lib/disk/utils.py", line 32, in _fetch_lsblk_info
worker = SysCommand(cmd)
File "/usr/lib/python3.13/site-packages/archinstall/lib/general.py", line 336, in __init__
self.create_session()
~~~~~~~~~~~~~~~~~~~^^
File "/usr/lib/python3.13/site-packages/archinstall/lib/general.py", line 376, in create_session
with SysCommandWorker(
~~~~~~~~~~~~~~~~^
self.cmd,
^^^^^^^^^
...<3 lines>...
working_directory=self.working_directory,
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
) as session:
^
File "/usr/lib/python3.13/site-packages/archinstall/lib/general.py", line 194, in __exit__
raise SysCallError(
...<3 lines>...
)
archinstall.lib.exceptions.SysCallError: ['/usr/bin/lsblk', '--json', '--bytes', '--output', 'name,path,pkname,log-sec,size,pttype,ptuuid,rota,tran,partn,partuuid,parttype,uuid,fstype,fsver,fsavail,fsuse%,type,mountpoint,mountpoints,fsroots', '/mnt/var/log'] exited with abnormal exit code [32]: lsblk: /mnt/var/log: not a block device
{
"blockdevices": [
]
}
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/usr/lib/python3.13/site-packages/archinstall/__init__.py", line 103, in run_as_a_module
rc = main()
File "/usr/lib/python3.13/site-packages/archinstall/__init__.py", line 93, in main
importlib.import_module(mod_name)
~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^
File "/usr/lib/python3.13/importlib/__init__.py", line 88, in import_module
return _bootstrap._gcd_import(name[level:], package, level)
~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "<frozen importlib._bootstrap>", line 1387, in _gcd_import
File "<frozen importlib._bootstrap>", line 1360, in _find_and_load
File "<frozen importlib._bootstrap>", line 1331, in _find_and_load_unlocked
File "<frozen importlib._bootstrap>", line 935, in _load_unlocked
File "<frozen importlib._bootstrap_external>", line 1026, in exec_module
File "<frozen importlib._bootstrap>", line 488, in _call_with_frames_removed
File "/usr/lib/python3.13/site-packages/archinstall/scripts/guided.py", line 197, in <module>
guided()
~~~~~~^^
File "/usr/lib/python3.13/site-packages/archinstall/scripts/guided.py", line 192, in guided
fs_handler.perform_filesystem_operations()
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^
File "/usr/lib/python3.13/site-packages/archinstall/lib/disk/filesystem.py", line 55, in perform_filesystem_operations
device_handler.umount_all_existing(mod.device_path)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^
File "/usr/lib/python3.13/site-packages/archinstall/lib/disk/device_handler.py", line 689, in umount_all_existing
Luks2(partition.path).lock()
~~~~~~~~~~~~~~~~~~~~~~~~~~^^
File "/usr/lib/python3.13/site-packages/archinstall/lib/luks.py", line 175, in lock
umount(mountpoint, recursive=True)
~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/lib/python3.13/site-packages/archinstall/lib/disk/utils.py", line 114, in umount
lsblk_info = get_lsblk_info(mountpoint)
File "/usr/lib/python3.13/site-packages/archinstall/lib/disk/utils.py", line 52, in get_lsblk_info
infos = _fetch_lsblk_info(dev_path, reverse=reverse, full_dev_path=full_dev_path)
File "/usr/lib/python3.13/site-packages/archinstall/lib/disk/utils.py", line 39, in _fetch_lsblk_info
raise DiskError(f'Failed to read disk "{dev_path}" with lsblk')
archinstall.lib.exceptions.DiskError: Failed to read disk "/mnt/var/log" with lsblk
[2025-06-14 15:10:53] - WARNING - Archinstall experienced the above error. If you think this is a bug, please report it to
https://github.com/archlinux/archinstall and include the log file "/var/log/archinstall/install.log".
I removed the partitions on that disk and it worked the second time I ran archinstall.