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bug#35655: Installer: mount error using btrfs on already formatted parti
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From: |
Giovanni Biscuolo |
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Subject: |
bug#35655: Installer: mount error using btrfs on already formatted partition |
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Date: |
Thu, 09 May 2019 16:42:06 -0000 |
Hello,
summary: AFAIU the installer lacks "force" formatting when using btrfs,
using "mkfs.btrfs -f <device>" solved the problem (see below)
I'm using Guix 1.0.0 installer on bare-metal
selecting "Manual" in "Partitioning method" (I'd like to keep the other
partitions), setting /dev/sda5 this way:
--8<---------------cut here---------------start------------->8---
┌─────────────────┤ Partition edit ├─────────────────┐
│ │
│ You are currently editing partition 5. │
│ │
│ ┌────────────────────────────────┐ │
│ │ Name: guix ↑ │ │
│ │ Filesystem type: btrfs ▒ │ │
│ │ ESP flag: Off ▒ │ │
│ │ Encryption: No ▒ │ │
│ │ Format the partition? : Yes ▒ │ │
│ │ Mount point : / ▒ │ │
│ │ ▒ │ │
--8<---------------cut here---------------end--------------->8---
and confirming this setting with "OK":
--8<---------------cut here---------------start------------->8---
│
┌──────────────────────────────────────────────────────────────────────────┐ │
│ │ ATA HGST HTS725050A7 (scsi) /dev/sda 500GB gpt ↑
│ │
│ │ ┣━ 1 1046MB ntfs diag Basic data partition ▮
│ │
│ │ ┣━ 2 346MB fat32 boot,esp /boot/efi EFI system partition ▒
│ │
│ │ ┣━ 3 16.8MB msftres Microsoft reserved partition ▒
│ │
│ │ ┣━ 4 26.4GB ntfs msftdata Basic data partition ▒
│ │
│ │ ┗━ 5 472GB btrfs / guix ▒
│ │
│ │ ▒
│ │
--8<---------------cut here---------------end--------------->8---
I confirm to format the disk (shoud be formatted btrfs, but the
operation is too quick and probably skipped) and proceed with
the rest of the installation
at the end of the configuration, I get this error:
--8<---------------cut here---------------start------------->8---
│
│
│ The installer has encountered an unexpected problem. The backtrace is
displayed below. Please report it by email to <address@hidden>.
│
│
│
│ In ice-9/boot-9.scm:
↑ │
│ 829:9 19 (catch _ _ #<procedure 358b0a0 at ./gnu/installer/step…> …)
▮ │
│ 829:9 18 (catch _ _ #<procedure 358b050 at ./gnu/installer/step…> …)
▒ │
│ 829:9 17 (catch _ _ #<procedure 358b000 at ./gnu/installer/step…> …)
▒ │
│ 829:9 16 (catch _ _ #<procedure 36948c0 at ./gnu/installer/step…> …)
▒ │
│ 829:9 15 (catch _ _ #<procedure 3694410 at ./gnu/installer/step…> …)
▒ │
│ 829:9 14 (catch _ _ #<procedure 36943c0 at ./gnu/installer/step…> …)
▒ │
│ 829:9 13 (catch _ _ #<procedure 358be60 at ./gnu/installer/step…> …)
▒ │
│ 829:9 12 (catch _ _ #<procedure 358be10 at ./gnu/installer/step…> …)
▒ │
│ 829:9 11 (catch _ _ #<procedure 358bdc0 at ./gnu/installer/step…> …)
▒ │
│ In ./gnu/installer/steps.scm:
▒ │
│ 177:21 10 (_)
▒ │
│ In ./gnu/installer/newt/final.scm:
▒ │
│ 95:10 9 (run-final-page _ _)
▒ │
│ In srfi/srfi-1.scm:
▒ │
│ 640:9 8 (for-each #<procedure 7fc3527c9b28 at ./gnu/installer/…> …)
▒ │
│ In ./guix/build/syscalls.scm:
▒ │
│ 488:8 7 (_ _ _ _ _ _ #:update-mtab? _)
▒ │
│ In ice-9/boot-9.scm:
▒ │
│ 751:25 6 (dispatch-exception 10 system-error ("mount" "mount …" …))
▒ │
│ In ice-9/eval.scm:
▒ │
│ 619:8 5 (_ #(#(#<directory (guile-user) 192e140> #<<instal…>) …))
▒ │
│ 619:8 4 (_ #(#(#(#<directory (guile-user) 192e140> #<<i…>) …) #))
▒ │
│ In ice-9/ports.scm:
▒ │
│ 462:17 3 (call-with-output-file _ _ #:binary _ #:encoding _)
▒ │
│ In ice-9/eval.scm:
▒ │
│ 619:8 2 (_ #(#(#<directory (guile-user) 192e140> # ("mo…" …)) #))
▒ │
│ 159:9 1 (_ #(#(#<directory (guile-user) 192e140> # ("mo…" …)) #))
▒ │
│ In unknown file:
▒ │
│ 0 (make-stack #t)
▒ │
│ ice-9/eval.scm:159:9: In procedure mount: mount "/dev/sda5" on "/mnt/":
Invalid argument
▒ │
│
▒ │
--8<---------------cut here---------------end--------------->8---
checking the filesystem type via "lsblk -f" I see that sda5 is still ext4:
--8<---------------cut here---------------start------------->8---
NAME FSTYPE LABEL UUID MOUNTPOINT
sda
[...]
├─sda2 vfat 7A61-DB20
[...]
└─sda5 ext4 90a30416-4d5b-4ba9-a9e8-3371ea8d2df3
--8<---------------cut here---------------end--------------->8---
I tested the installer several times on this hardware using ext4 and the
installation process always succedes
the relevant logs from /var/logs/messages are:
--8<---------------cut here---------------start------------->8---
May 9 18:08:52 localhost vmunix: [ 4378.645672] raid6: avx2x4 gen() 34743
MB/s
May 9 18:08:52 localhost vmunix: [ 4378.713670] raid6: avx2x4 xor() 20040
MB/s
May 9 18:08:52 localhost vmunix: [ 4378.781671] raid6: avx2x2 gen() 30636
MB/s
May 9 18:08:52 localhost vmunix: [ 4378.849670] raid6: avx2x2 xor() 18818
MB/s
May 9 18:08:52 localhost vmunix: [ 4378.917669] raid6: avx2x1 gen() 26294
MB/s
May 9 18:08:52 localhost vmunix: [ 4378.985669] raid6: avx2x1 xor() 17949
MB/s
May 9 18:08:52 localhost vmunix: [ 4379.053670] raid6: sse2x4 gen() 19128
MB/s
May 9 18:08:52 localhost vmunix: [ 4379.121671] raid6: sse2x4 xor() 11860
MB/s
May 9 18:08:52 localhost vmunix: [ 4379.189669] raid6: sse2x2 gen() 16237
MB/s
May 9 18:08:52 localhost vmunix: [ 4379.257670] raid6: sse2x2 xor() 10489
MB/s
May 9 18:08:53 localhost vmunix: [ 4379.325671] raid6: sse2x1 gen() 13656
MB/s
May 9 18:08:53 localhost vmunix: [ 4379.393671] raid6: sse2x1 xor() 9574
MB/s
May 9 18:08:53 localhost vmunix: [ 4379.393672] raid6: using algorithm avx2x4
gen() 34743 MB/s
May 9 18:08:53 localhost vmunix: [ 4379.393672] raid6: .... xor() 20040 MB/s,
rmw enabled
May 9 18:08:53 localhost vmunix: [ 4379.393684] raid6: using avx2x2 recovery
algorithm
May 9 18:08:53 localhost vmunix: [ 4379.395980] xor: automatically using best
checksumming function avx
May 9 18:08:53 localhost vmunix: [ 4379.705400] Btrfs loaded,
crc32c=crc32c-intel
--8<---------------cut here---------------end--------------->8---
so I guess the installer tries to mount /dev/sda5 using brtfs but it
fails because it's not btrfs formatted
as a dirty hack, I restarted the installer and right after the
formatting confirmation dialog I switched to a console and formatted it
"manually" with:
--8<---------------cut here---------------start------------->8---
address@hidden ~# mkfs.btrfs /dev/sda5
btrfs-progs v4.20.2
See http://btrfs.wiki.kernel.org for more information.
/dev/sda5 appears to contain an existing filesystem (ext4).
ERROR: use the -f option to force overwrite of /dev/sda5
--8<---------------cut here---------------end--------------->8---
this probably explains why the filesystem is not formatted by the
installer: please consider it's usual to reuse old partitions when
installing on a used disk :-)
so I forced formatting:
--8<---------------cut here---------------start------------->8---
address@hidden ~# mkfs.btrfs -f /dev/sda5
btrfs-progs v4.20.2
See http://btrfs.wiki.kernel.org for more information.
Label: (null)
UUID: f0ef2920-41d4-4bd4-bee8-f04b1adcb7c8
Node size: 16384
Sector size: 4096
Filesystem size: 439.89GiB
Block group profiles:
Data: single 8.00MiB
Metadata: DUP 1.00GiB
System: DUP 8.00MiB
SSD detected: no
Incompat features: extref, skinny-metadata
Number of devices: 1
Devices:
ID SIZE PATH
1 439.89GiB /dev/sda5
--8<---------------cut here---------------end--------------->8---
I returned to the installer console and the installation finished
succesfully
sorry I'm not able to find where is the code used by the installer to
format the disk, cannot propose a patch
HTH! Gio'
--
Giovanni Biscuolo
Xelera IT Infrastructures
- bug#35655: Installer: mount error using btrfs on already formatted partition,
Giovanni Biscuolo <=