Accidently changed the /usr/bin/ ownership

Issues & Assistance Newbies
1 
System:
Kernel: 6.1.12-zen1-1-zen arch: x86_64 bits: 64 compiler: gcc v: 12.2.1
parameters: BOOT_IMAGE=/@/boot/vmlinuz-linux-zen
root=UUID=ed32595a-d211-4658-b067-e481188b5b26 rw rootflags=subvol=@
quiet quiet rd.udev.log_priority=3 vt.global_cursor_default=0 loglevel=3
ibt=off
Desktop: KDE Plasma v: 5.27.1 tk: Qt v: 5.15.8 wm: kwin_x11 vt: 1 dm: SDDM
Distro: Garuda Linux base: Arch Linux
Machine:
Type: Desktop Mobo: Micro-Star model: B450 TOMAHAWK MAX II (MS-7C02) v: 3.0
serial: <superuser required> UEFI: American Megatrends LLC. v: H.90
date: 07/25/2022
CPU:
Info: model: AMD Ryzen 5 5600X bits: 64 type: MT MCP arch: Zen 3+ gen: 4
level: v3 note: check built: 2022 process: TSMC n6 (7nm) family: 0x19 (25)
model-id: 0x21 (33) stepping: 2 microcode: 0xA20120A
Topology: cpus: 1x cores: 6 tpc: 2 threads: 12 smt: enabled cache:
L1: 384 KiB desc: d-6x32 KiB; i-6x32 KiB L2: 3 MiB desc: 6x512 KiB
L3: 32 MiB desc: 1x32 MiB
Speed (MHz): avg: 3691 high: 3700 min/max: 2200/4650 boost: enabled
scaling: driver: acpi-cpufreq governor: performance cores: 1: 3700 2: 3700
3: 3700 4: 3700 5: 3700 6: 3700 7: 3600 8: 3700 9: 3700 10: 3700 11: 3700
12: 3700 bogomips: 88800
Flags: avx avx2 ht lm nx pae sse sse2 sse3 sse4_1 sse4_2 sse4a ssse3 svm
Vulnerabilities: <filter>
Graphics:
Device-1: NVIDIA GA104 [GeForce RTX 3060] vendor: PNY driver: nvidia
v: 525.89.02 alternate: nouveau,nvidia_drm non-free: 525.xx+
status: current (as of 2023-02) arch: Ampere code: GAxxx
process: TSMC n7 (7nm) built: 2020-22 pcie: gen: 3 speed: 8 GT/s lanes: 16
link-max: gen: 4 speed: 16 GT/s bus-ID: 26:00.0 chip-ID: 10de:2487
class-ID: 0300
Display: x11 server: X.Org v: 21.1.7 with: Xwayland v: 22.1.8
compositor: kwin_x11 driver: X: loaded: nvidia unloaded: modesetting,vesa
alternate: fbdev,nouveau,nv gpu: nvidia display-ID: :0 screens: 1
Screen-1: 0 s-res: 6960x1920 s-dpi: 109 s-size: 1622x447mm (63.86x17.60")
s-diag: 1682mm (66.24")
Monitor-1: DP-0 pos: bottom-r res: 1920x1080 hz: 60 dpi: 92
size: 531x299mm (20.91x11.77") diag: 609mm (23.99") modes: N/A
Monitor-2: DP-2 pos: primary,top-left res: 1200x1920 hz: 60 dpi: 94
size: 324x518mm (12.76x20.39") diag: 611mm (24.05") modes: N/A
Monitor-3: DP-4 pos: top-center res: 3840x1600 hz: 60 dpi: 111
size: 879x366mm (34.61x14.41") diag: 952mm (37.49") modes: N/A
API: OpenGL v: 4.6.0 NVIDIA 525.89.02 renderer: NVIDIA GeForce RTX
3060/PCIe/SSE2 direct-render: Yes
Audio:
Device-1: NVIDIA GA104 High Definition Audio vendor: PNY
driver: snd_hda_intel v: kernel bus-ID: 5-1.1:4 pcie: chip-ID: 0499:170f
gen: 3 class-ID: 0103 speed: 8 GT/s lanes: 16 link-max: gen: 4
speed: 16 GT/s bus-ID: 26:00.1 chip-ID: 10de:228b class-ID: 0403
Device-2: AMD Starship/Matisse HD Audio vendor: Micro-Star MSI
driver: snd_hda_intel v: kernel pcie: gen: 4 speed: 16 GT/s lanes: 16
bus-ID: 28:00.4 chip-ID: 1022:1487 class-ID: 0403
Device-3: Yamaha Steinberg UR22mkII type: USB driver: snd-usb-audio
Device-4: Intel USB PnP Sound Device type: USB
driver: hid-generic,snd-usb-audio,usbhid bus-ID: 5-2:3 chip-ID: 8086:0808
class-ID: 0300
Sound API: ALSA v: k6.1.12-zen1-1-zen running: yes
Sound Server-1: PulseAudio v: 16.1 running: no
Sound Server-2: PipeWire v: 0.3.66 running: yes
Network:
Device-1: Realtek RTL8111/8168/8411 PCI Express Gigabit Ethernet
vendor: Micro-Star MSI driver: r8169 v: kernel pcie: gen: 1 speed: 2.5 GT/s
lanes: 1 port: f000 bus-ID: 22:00.0 chip-ID: 10ec:8168 class-ID: 0200
IF: enp34s0 state: up speed: 1000 Mbps duplex: full mac: <filter>
IF-ID-1: tailscale0 state: unknown speed: -1 duplex: full mac: N/A
IF-ID-2: virbr0 state: down mac: <filter>
Bluetooth:
Device-1: TP-Link UB500 Adapter type: USB driver: btusb v: 0.8
bus-ID: 3-1.4:3 chip-ID: 2357:0604 class-ID: e001 serial: <filter>
Report: bt-adapter ID: hci0 rfk-id: 0 state: up address: <filter>
Drives:
Local Storage: total: 4.12 TiB used: 1.49 TiB (36.2%)
SMART Message: Unable to run smartctl. Root privileges required.
ID-1: /dev/nvme0n1 maj-min: 259:0 vendor: Western Digital model: PC SN520
SDAPNUW-512G-1014 size: 476.94 GiB block-size: physical: 512 B
logical: 512 B speed: 15.8 Gb/s lanes: 2 type: SSD serial: <filter>
rev: 20110000 temp: 40.9 C scheme: GPT
ID-2: /dev/sda maj-min: 8:0 vendor: Seagate model: ST2000DM008-2FR102
size: 1.82 TiB block-size: physical: 4096 B logical: 512 B speed: 6.0 Gb/s
type: HDD rpm: 7200 serial: <filter> rev: 0001 scheme: GPT
ID-3: /dev/sdb maj-min: 8:16 vendor: Toshiba model: HDWD120 size: 1.82 TiB
block-size: physical: 4096 B logical: 512 B speed: 6.0 Gb/s type: HDD
rpm: 7200 serial: <filter> rev: ACF0 scheme: GPT
ID-4: /dev/sdc maj-min: 8:32 type: USB model: USB DISK 2.0 size: 14.44 GiB
block-size: physical: 512 B logical: 512 B type: N/A serial: <filter>
rev: PMAP scheme: MBR
SMART Message: Unknown USB bridge. Flash drive/Unsupported enclosure?
Partition:
ID-1: / raw-size: 476.64 GiB size: 476.64 GiB (100.00%)
used: 95.63 GiB (20.1%) fs: btrfs dev: /dev/nvme0n1p2 maj-min: 259:2
ID-2: /boot/efi raw-size: 300 MiB size: 299.4 MiB (99.80%)
used: 608 KiB (0.2%) fs: vfat dev: /dev/nvme0n1p1 maj-min: 259:1
ID-3: /home raw-size: 476.64 GiB size: 476.64 GiB (100.00%)
used: 95.63 GiB (20.1%) fs: btrfs dev: /dev/nvme0n1p2 maj-min: 259:2
ID-4: /var/log raw-size: 476.64 GiB size: 476.64 GiB (100.00%)
used: 95.63 GiB (20.1%) fs: btrfs dev: /dev/nvme0n1p2 maj-min: 259:2
ID-5: /var/tmp raw-size: 476.64 GiB size: 476.64 GiB (100.00%)
used: 95.63 GiB (20.1%) fs: btrfs dev: /dev/nvme0n1p2 maj-min: 259:2
Swap:
Kernel: swappiness: 133 (default 60) cache-pressure: 100 (default)
ID-1: swap-1 type: zram size: 31.27 GiB used: 0 KiB (0.0%) priority: 100
dev: /dev/zram0
Sensors:
System Temperatures: cpu: 31.0 C mobo: 30.0 C gpu: nvidia temp: 50 C
Fan Speeds (RPM): fan-1: 2343 fan-2: 685 fan-3: 718 fan-4: 0 fan-5: 0
fan-6: 0 gpu: nvidia fan: 0%
Info:
Processes: 367 Uptime: 5m wakeups: 0 Memory: 31.27 GiB
used: 4.71 GiB (15.1%) Init: systemd v: 253 default: graphical
tool: systemctl Compilers: gcc: 12.2.1 clang: 15.0.7 Packages: pm: pacman
pkgs: 1889 libs: 459 tools: gnome-software,octopi,pamac,paru,yay Shell: fish
v: 3.6.0 default: Bash v: 5.1.16 running-in: konsole inxi: 3.3.25
Garuda (2.6.15-1):
System install date:     2023-02-21
Last full system update: 2023-02-25
Is partially upgraded:   No
Relevant software:       snapper NetworkManager mkinitcpio nvidia-dkms
Windows dual boot:       No/Undetected
Failed units:

Hello. I somehow manage to change the /usr/bin ownership and now I'm trying to give it back to root. I receive these errors :

sudo: /usr/bin/sudo must be owned by uid 0 and have the setuid bit set
or
chown: changing ownership of '/usr/bin/sudo': Operation not permitted

I managed to go to recovery mode and chown root:root /usr/bin/sudo and `chmod 4755 /usr/bin/sudo , but when I type ls -l /usr/bin/sudo I receive

.rwxr-xr-x 249k root 15 фев 23:35  /usr/bin/sudo

Any ideas how to procede from here? I think the outcome should be something like -rwxr-xr-x 1 root root

2

Assuming that you will probably restore a snapshot, try the following, while chrooted into the root user:
sudo chown -c root --recursive /usr/bin. If the file perms are messed up as well, run chmod 4755 /usr/bin --recursive (assuming that the perms you listed above are the correct ones, I have no clue about the 4)

3

I tried to restore a snapshot but I cannot access BTRFS Assistant from the menu and from GRUB I received an error that sbin is missing and cannot load snapshot.

4

Please don’t do this. That will break your system in a way that will be quite difficult to recover.

5

From my experience all the files in /usr/bin have the same perms, is that not correct?

6

Yes, that is not correct.

2 Likes
7

So… should I try this?

8

I think reinstalling the package was what solved the issue in the other thread: Permission/authentification failures - #2 by jonathon

Did you try that yet?

sudo pacman -S sudo
9

Same error
sudo: /usr/bin/sudo must be owned by uid 0 and have the setuid bit set

10

Is there any way of running BTRFS Assistant or some of the snaps from the terminal, because Snapper Tools and Assistant doesn't start when I try open them from the menu?

11

How did you
Accidently changed the /usr/bin/ ownership
:smiley:

1 Like
12

Sorry, that was stupid–of course sudo isn’t going to work. :man_facepalming:

You’ll have to elevate to root with su, and then try to reinstall it (pacman -S sudo).

Yes, you can restore snapshots from the command line like this: Snapper - ArchWiki

You can also boot to a live environment and restore a snapshot with Btrfs Assistant.

1 Like
13

By clicking right mouse button → root actions → ownership to Active User. I thought that I’m in other folder. :smiling_face_with_tear:
And of course, doing the same but changing ownership to root doesn’t seems to be working.

1 Like