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Needgentoohelppls
n00b
Joined: 11 Sep 2024
Posts: 5
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 Posted: Wed Sep 11, 2024 3:34 pm Post subject: Root is read only |
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I am new to Linux and was following a tutorial for installing gentoo and I managed to get it installed but now all of root is read only. I believe this is because I copied the tutorials fstab instead of the handbook. My root in fstab is
/dev/sda3 / ext4 ssd,defaults 1 0
The problem is /etc/fstab is unwritable. I don’t know enough and can’t find any quick fix to get this back to what the handbook recommends. Any help would be greatly appreciated |
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Zucca
Moderator
Joined: 14 Jun 2007
Posts: 3620
Location: Rasi, Finland
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| Posted: Wed Sep 11, 2024 3:47 pm Post subject: |
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You can try to | Code: | | mount -o remount,rw / |
to make your root partition writable.
... and welcome to Gentoo. ;)
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Needgentoohelppls
n00b
Joined: 11 Sep 2024
Posts: 5
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| Posted: Wed Sep 11, 2024 4:17 pm Post subject: |
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| I tried that and it said “mount point not mounted or bad option.” |
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Zucca
Moderator
Joined: 14 Jun 2007
Posts: 3620
Location: Rasi, Finland
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| Posted: Wed Sep 11, 2024 4:35 pm Post subject: |
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Please post the output of the following commands: and
Use wgetpaste if you cannot simply copy & paste.
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Gentoo IRC channels reside on Libera.Chat.
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szatox
Advocate
Joined: 27 Aug 2013
Posts: 3341
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| Posted: Wed Sep 11, 2024 5:32 pm Post subject: |
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The line from fstab looks fine.
Did you have a power outage by any chance? Fsck usually is able to fix damaged filesystem. You can try to repair a mounted filesystem as long as it's mounted read-only, so that checks out for you.
Also, you might check dmesg for disk-related errors.
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Needgentoohelppls
n00b
Joined: 11 Sep 2024
Posts: 5
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| Posted: Wed Sep 11, 2024 10:24 pm Post subject: |
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For mount I got:
| Code: | proc on /proc type proc (rw,nosuid,noexec,relatime)
sysfs on /sys type sysfs (rw,nosuid,noexec,relatime)
devtmpfs on /dev type devtmpfs (rw,nosuid,noexec,size=10240k,nr_inodes=992020,mode=755,inode64)
devpts on /dev/pts type devpts (rw,nosuid,noexec,relatime,gid=5,mode=620,ptmxmode=000)
tmpfs on /dev/shm type tmpfs (rw,nosuid,nodev,noexec,inode64)
tmpfs on /run type tmpfs (rw,nosuid,nodev,noexec,mode=755,inode64)
/dev/sda3 on / type ext4 (ro,relatime)
securityfs on /sys/kernel/security type securityfs (rw,nosuid,nodev,noexec,relatime)
debugfs on /sys/kernel/debug type debugfs (rw,nosuid,nodev,noexec,relatime)
configfs on /sys/kernel/config type configfs (rw,nosuid,nodev,noexec,relatime)
pstore on /sys/fs/pstore type pstore (rw,nosuid,nodev,noexec,relatime)
efivarfs on /sys/firmware/efi/efivars type efivarfs (rw,nosuid,nodev,noexec,relatime)
none on /sys/fs/cgroup type cgroup2 (rw,nosuid,nodev,noexec,relatime,nsdelegate)
mqueue on /dev/mqueue type mqueue (rw,nosuid,nodev,noexec,relatime)
binfmt_misc on /proc/sys/fs/binfmt_misc type binfmt_misc (rw,nosuid,nodev,noexec,relatime)
/dev/sda1 on /boot type vfat (rw,relatime,fmask=0022,dmask=0022,codepage=437,iocharset=ascii,shortname=mixed,errors=remount-ro)
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I can't connect it to wifi so I had to copy it by hand, also its on a laptop so I don't think an outage would affect anything.
Give me a second to type out the second one |
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psycho
Guru
Joined: 22 Jun 2007
Posts: 541
Location: New Zealand
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| Posted: Wed Sep 11, 2024 10:34 pm Post subject: |
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The first item in each of those sets of brackets is telling you whether the filesystem is mounted read-write (rw) or read-only (ro). Your root filesystem (/) on which everything else is mounted, is currently mounted ro. Normally Zucca's solution would fix that.
Last edited by psycho on Wed Sep 11, 2024 10:36 pm; edited 1 time in total |
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grknight
Retired Dev
Joined: 20 Feb 2015
Posts: 1842
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| Posted: Wed Sep 11, 2024 10:34 pm Post subject: |
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| Needgentoohelppls wrote: | | /dev/sda3 / ext4 ssd,defaults 1 0 |
The option "ssd" is not valid for ext4
This is what is blocking root mounted rw.
Last edited by grknight on Wed Sep 11, 2024 11:05 pm; edited 1 time in total |
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Needgentoohelppls
n00b
Joined: 11 Sep 2024
Posts: 5
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| Posted: Wed Sep 11, 2024 10:50 pm Post subject: |
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lsblk -f
| Code: |
NAME FSTYPE FSVER LABEL UUID FSAVAIL FSUSE% MOUNTPOINTS
sda
sda1 vfat FAT32 8AAB-2A78 920.8M 10% /boot
sda2 swap 1 b3b505b7-36c9-43eb-ab4c-30393d63b5ac [SWAP]
sda3 ext4 1.0 1288ec8f-8486-4174-9dd1-359345a4adf4 76.3G 8% /
sdb
sdc iso9660 Joliet Extension Gentoo-amd-64-@DATESTAMP@ 2024-09-08-18-40-11-00
sdc1
sdc2 vfat FAT12 3746-86BF
sdc3 hfsplus Gentoo-amd64@DATESTAMP@
sdc4
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better now |
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Hu
Administrator
Joined: 06 Mar 2007
Posts: 22407
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| Posted: Wed Sep 11, 2024 11:07 pm Post subject: |
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| Needgentoohelppls wrote: | | better now |
Do you mean you got this to work? As I read grknight's post, you have an invalid mount option in /etc/fstab for /, so any mount call that uses fstab for this filesystem will fail. You need to remove the invalid option. Try mount -o remount,rw / /, which should inhibit using fstab. After that, you can edit fstab to fix it. |
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Needgentoohelppls
n00b
Joined: 11 Sep 2024
Posts: 5
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| Posted: Wed Sep 11, 2024 11:21 pm Post subject: |
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| I just said better now because I fixed the formatting. Thank you so much for that code! I got it fixed and everything's working now. |
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Installing Gentoo
