Questions tagged [read-only]
The read-only tag has no usage guidance.
101
questions
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59
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md0 mount comes read-only after some writing
So I got a RAID 6 array (monitored) and I mount it to my filesystem (/mnt/mounting_point for this example). After some writing, for example:
sudo fio --name=seqwrite --filename=/test/seqwrite.0.0 --rw=...
0
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0
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58
views
On linux filesystem becoming RO, how to reliably reboot?
When the main Linux partition becomes ro for some reason (errors), I am trying to
use cron job to check and reboot (so that fsck can run and attempt a fix), but I see that even the cron may not run!
...
- 32
0
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0
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64
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"/etc/nginx/nginx.conf is meant to be read-only" when editing with nano after upgrading Ubuntu 20.04 to Ubuntu 22.04
I am recently upgraded Ubuntu Server 20.04 to Ubuntu Server 22.04. It is a LEMP server running the latest Mainline version of Nginx. After the upgrade, when I try modifying the /etc/nginx/nginx.conf ...
- 73
4
votes
1
answer
224
views
why read is faster when using O_DIRECT flag?
I copied a 10GB of file in my SSD which has read bandwidth of around 3.3GB/s, benchmarked using fio command. Here is the ref: https://cloud.google.com/compute/docs/disks/benchmarking-pd-performance
I ...
- 43
0
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1
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36
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BTRFS partition auto mounts ro
i have my /home/ on a btrfs partition and it appears like after loggingf in to Plasma with my default userm, it becomes mounted ro (rw after boot before login). I booted a USB live system asnd ran ...
- 246
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0
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395
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OSError: [Errno 30] Read-only file system: <relative_path_to_file>
(On Ubuntu 22.04 LTS)
When trying to create or edit any file or directory on my hard drive I get a 'Read-only file system'-error (two days ago I could still do that):
$ whoami
mattia
$ mkdir example
...
- 1
0
votes
1
answer
54
views
Can't `lvconvert` when root is readonly
My root is mounted readonly (on purpose). I have a separate, read-write vg where I want to lvconvert --merge a thin snapshot. I'm getting Cannot archive volume group metadata for $VG to read-only ...
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0
answers
64
views
How to enable password policy on readonly filesystem?
I'm using a read-only filesystem (squashfs). I've used the overlays file system to mount /etc directory. I can change the password using passwd command.
I've included libpam & libpwquality ...
- 101
0
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0
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112
views
Cannot edit journald.conf
I'm working with a embedded linux machine that was made with Buildroot. The default user is root and I would like to edit /etc/systemd/journald.conf to set the SystemMaxUse to prevent the log files ...
0
votes
1
answer
515
views
In the bind mount "hostPath:containerPath:ro" what dose the ro part do?
How do I know I need to add the ro or not?
I know the ro stands for read only but why would you need a read only bind mount?
How would it effect my docker-composer-yml
Example: Containerizing a ...
- 1
0
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0
answers
72
views
Block users from accessing anything outside home folder and run any executables on Windows
I am facing a quite complex problem and I do not know how to approach it in the best way. In short I need to block access (browse, display, run etc.) to anything outside of the profile/home directory ...
- 13
1
vote
1
answer
2k
views
Debian server showing "read only file system" repeatedly
I am having issues with being unable to SSH into my server, running Debian 11. If I try to make a folder or file, I get an error that says mkdir: cannot create directory ‘/tmp/test’: Read-only file ...
- 13
0
votes
1
answer
39
views
VM in Read-Only - no commands executed
A Ubuntu 18.04 LTS server VM has entered Read-Only Mode, to the point that basic commands such as ls are not executed anymore, and return the error message -bash: /usr/bin/ls: Input/output error, ...
3
votes
1
answer
1k
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Why can I change the the reserved blocks on a read only mounted ext4 filesystem?
I would have expected an error, sorry FS is read-only, but it is possible. This is unexpected & counter intuitive is there a reason?
Linux files 5.11.0-27-generic #29~20.04.1-Ubuntu SMP Wed Aug 11 ...
- 39
1
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0
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303
views
exportfs with rw not working , fstab either. Mount point still read only on my setup machine
I have a VM that other VMs and servers mount from. This vm has an ip of say:
10.10.1.1
The folder that others mount is \export\images
So one VM mounts this in its fstab:
10.10.1.1:/export/images ...
- 129
3
votes
1
answer
704
views
Gluster Read-Only file system
I'm stuck with this problem and I can't solve it, we have a website so people can upload their videos on it in some path (Temp directory for example) then our admins go and move these video to another ...
- 31
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0
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664
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nslookup domain does not return RODC
i have a subnet which contains an RODC, however a prejoined domain-server cant authenticate inside the subnet. Running a "nslookup domain.com" does return a list of every DC except the RODC. I found ...
- 101
2
votes
0
answers
4k
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NFS read/write mountpoint returns read-only file system error when written
I have two nodes running CentOS Linux release 7.3.1611 (Core), one for computing (mu01), the other for storage (io01). As root, I mounted a directory /data on io01 to /data on mu01 by mount -t nfs -o ...
- 153
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497
views
Unable to remove Read-Only attribute from folder
I have a Windows Server 2012R2VM File Server on an ESXi host (lab environment, domain joined). Everything seems to work just fine on the the environment. I am testing a new software which utilises SQL ...
- 1
0
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2
answers
487
views
DB2 10.5 HADR read only standby applications don't reconnect to primary
Scenario:
server SERV_A, database DBNAME primary
server SERV_B, database DBNAME standby with DB2_HADR_ROS enabled
Then this situation occurs:
connection CON is made from client to DBNAME when ...
- 165
1
vote
0
answers
6k
views
Cannot change /etc/hosts in docker container with read_only root filesystem
I am trying to add a line in /etc/hosts file with a specific IP and a hostname. The IP is static and the hostname is retrievable from the /etc/hostname.
However, I want my root file system to be read-...
- 125
0
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2
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10k
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How to tell if linux disk is READ ONLY
I have a sata disk on module which has a hardware switch which can lock the disk from being written in a READ ONLY MODE. Is there a way to tell in software whether or not that switch has been switched ...
- 472
1
vote
3
answers
3k
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innodb-read-only prevent mysql replication? Table 'gtid_slave_pos' is read only
I set up a couple of maraidb v10.2.10 containers with the official docker image. Master can read/write and slave is read-only with this my.cnf.
[mysqld]
server_id=2
read_only=1
innodb_read_only=1
...
- 466
0
votes
1
answer
1k
views
Read-only DC lost connection and client can't sign in
we have two site (office & factory). in factory site we have read-only Domain controller. connection of two sites is radio wireless and yesterday we lost connection because of storm. now users can'...
- 123
0
votes
1
answer
2k
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VM starts with system disk in read-only mode
My vm starts with the system disk in read-only mode, so system can't load anything properly. The instance was created with the disk of and old vm, but in the instance properties disk is "boot, read/...
- 1
1
vote
2
answers
7k
views
Permission to read a specific file with sudo
For reasons, I need to read /root/.ssh/authorized_keys with a user who hasn't the right to read it. Obviously, I can't change the rights (nor the ACL) of the file, because ssh wouldn't like it.
I ...
- 168
1
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0
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3k
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80090308: LdapErr: DSID-0C0903D9, comment: AcceptSecurityContext error, data 0, v2580
Trying to fastbind against an RODC and I'm getting the following error:
80090308: LdapErr: DSID-0C0903D9, comment: AcceptSecurityContext error, data 0, v2580
I have googled around and don't have ...
- 11
1
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0
answers
27
views
How do you 'bake' a Red Hat Atomic image in read-only mode?
Many people are talking up the security benefits of Red Hat Atomic - being a read-only operating system - means substantially fewer vulnerabilities - particularly important in the cloud.
When I ...
- 2,699
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0
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31
views
What configuration change read only task of log files
What configuration changes required in jboss-server standalone.xml file for generating read only server log.
Jboss server runing on linux machine.
Can I achieve read only task on changing xml ...
-1
votes
1
answer
8k
views
VM filesystem in read-only mode
I have a VirtualBox Ubuntu VM with a virtual disk that is mounting as a read-only filesystem. I'm not sure why that is, and my attempts to remount as read/write haven't worked.
One of the last things ...
0
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1
answer
337
views
Mount partition as read-only until reboot
Is it possible on Linux to mount a partition as read-only at boot time and make sure it cannot be re-mounted as read-write until next boot / power off?
- 3
0
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1
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2k
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Can't remove mongod.lock
all.
I want to remove mongod.lock. When I try sudo rm -rf mongod.lock I got this
rm: cannot remove ‘mongod.lock’: Read-only file system
Can anyone tell me how to force remove it?
Thanks,
Ami
- 1,069
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410
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SharePoint Foundation 2010 Existing files after upgrade are read only
Over the weekend we upgraded our server, including SharePoint.
Previously we were using WSS3.0 on Server 2008R2.
We moved to SharePoint Foundation 2010 on Server 2012R2.
We also have Exchange 2016 ...
- 101
0
votes
1
answer
254
views
Lock a specific mysql database in shared mysql database
I am trying to migrate a database from one cluster to another cluster. In order to avoid any data loss during the migration, I am trying to lock my database with the WRITE operations. But the lock ...
- 103
0
votes
1
answer
703
views
Server 2012 - how to make files in a folder readonly to everyone but creator/owner
I'd like to setup a shared folder on my Windows Server 2012 box where all the managers can put files that they can edit, and other users can open, read and print, but can't change or delete.
It ...
- 11
-2
votes
1
answer
499
views
XEN Server NFS SR read only
We have two Boxes running XEN XCP. One SR is located on an FreeNAS 9 NFS share.
For some reason the NFS share turned read only which is pretty bad for one VM whose VDIs are located on the NFS SR.
I ...
- 1
1
vote
1
answer
3k
views
Windows Hyper-V Debian going into Read Only mode
I am running Debian 7.8 (wheezy) which is installed on a Windows Hyper-V server (not managed by me). However, the server frequently goes into 'read only' mode and I am not sure why. I have looked in ...
- 13
0
votes
1
answer
207
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Linux CentOS: A server throws weird error messages, can you speculate why?
There's a server in my company which is part of the production environment.
On the server there's an ActiveMQ server running.
I logged into the Active-MQ UI and tried to create a new queue.
When I did,...
- 10.7k
2
votes
1
answer
7k
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Bitlocker Drive cannot save files on this drive [closed]
I have a freshly installed Windows 2008 R2 Server with a C drive containing the operating system and d drive as a normal data drive. Ive turned on encryption on the d drive using Bitlocker. The ...
0
votes
1
answer
52
views
Unable to read some files on hard disk
Our server has two independent hard disks without RAID.
One hard drive just for storing junk/temporary data where we generally delete temporary data using LRU algorithm.
We have a 10k file in that ...
- 205
-5
votes
1
answer
9k
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MySQL : How to lock all write in all databases? [closed]
I need to block all writes (insert , update, delete) on all databases.
How can I do that ?
Put all database in Read Only for a period time.
0
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2
answers
2k
views
How to backup your MySQL database when /tmp is read only?
I have an Ubuntu server 12.04 with a corrupted ext4 file system on my /tmp partition :
$ dmesg | tail
[25300713.878456] end_request: I/O error, dev vda, sector 2019854
[25300713.882430] Aborting ...
- 409
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1
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669
views
AuFS read only branch as another read only branch
My goal is to use an AuFS read only branch as another read only branch:
I've got a directory dir0, then I make :
mount -t aufs -o br=dir2=rw:dir0=ro none dir1
This gives me
- dir0
- dir1 #read ...
- 231
1
vote
1
answer
2k
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Portable Webserver (PHP, MySQL) on CD-ROM
For a school project, I programmed something based on PHP using a MySQL database. for evaluation, it is necessary to hand the program together with the documentation three times to the teacher -- but ...
- 155
1
vote
1
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708
views
Server Fileshare Office Documents Read Only until Closing and Reopening
Have a customer that has a strange issue with Microsoft Office Documents on their file server. It does not happen every time they open an office file but it is pretty consistent. They get a read only ...
- 11
1
vote
1
answer
9k
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Ubuntu server mounted in read-only? [closed]
This morning my Ubuntu server suddenly appeared in read-only mode.
Google says this can happen after updates.
I restarted the server and it booted with fsck errors:
Inodes that were parts of a ...
- 220
-1
votes
1
answer
468
views
How to create a readonly root linux: Can be mounted as writeable for persistent changes? [closed]
I'd like a read only file system that runs almost entirely in RAM but the compact flash or hardrive can be mounted and made writeable to make persistent changes.
How do I do this on Linux? I've ...
9
votes
4
answers
14k
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Write once, read many (WORM) using Linux file system
I have a requirement to write files to a Linux file system that can not be subsequently overwritten, appended to, updated in any way, or deleted. Not by a sudo-er, root, or anybody. I am attempting to ...
- 191
14
votes
6
answers
83k
views
How to find cause of main file system going to read only mode
Ubuntu 12.04
File system goes to readonly mode frequently.
First of all I have read this question file system is going into read only mode frequently already.
But I have to know if it's not caused ...
- 251
3
votes
5
answers
72k
views
How to mount a filesystem in a read-only environment?
I have the problem that my machine turned the root filesystem into readonly mode and remounting it as writeable won't work:
# mount -o remount,rw /dev/sda1 /
mount: block device /dev/sda1 is write-...
- 143