Read-only bind mount using fstab and systemd

I'd like to have read-only bind mount in fstab. I've read that proper solution of that problem is adding to /etc/fstab those lines:
/src/dir /dst/dir none bind 0 0
/src/dir /dst/dir none remount,bind,ro 0 0
I know it works on non-systemd enviroments (Debian) but with systemd I get error message from systemd-fstab-generator during startup about duplicate entry in /etc/fstab and my mount point is not read-only. Does anyone have better solution than running a script?

R00KIE wrote:
You could use the "alternative" way of doing it, which is exemplified in the manual page: '
mount --bind olddir newdir
mount -o remount,ro,bind olddir newdir
Here I can reproduce your problem but the "alternative" way seems to work fine.
That's not the alternative way, that's the only way. Though, you don't need to specify both the source and dest on the remount -- just the dest.
Last edited by falconindy (2012-01-31 13:32:12)

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Read-only bind mounts not working properly

Hello,
I discovered a strange behavior regarding mount --bind on my system. In the past I could create read-only bind mounts using first a mount --bind /source /dest and after that mount -o remount,ro /dest. But since some kernel update (not sure which) this procedure results in the complete filesystem of the source being remounted read-only, not only the /dest mountpoint. I also saw that bind-mounts are not shown as such in the outbput of mount:
the mountpoint was created using
mount --bind /mnt/data/Backup/vserver/Daten /mnt/data/homes/vserver/Daten
and results in the following output of mount:
/dev/mapper/data on /mnt/data/homes/vserver/Daten type ext4 (rw,noatime,nodiratime,user_xattr,acl,barrier=1,stripe=64,data=ordered)
so its reported as if i mounted the parent fs (/dev/mapper/data on /mnt/data) to the directory.
Does anyone know what caused this behavior, and how to get read-only bind-mounts back to a working condition?
Thanks in advance,
seiichiro0185

R00KIE wrote:
You could use the "alternative" way of doing it, which is exemplified in the manual page: '
mount --bind olddir newdir
mount -o remount,ro,bind olddir newdir
Here I can reproduce your problem but the "alternative" way seems to work fine.
That's not the alternative way, that's the only way. Though, you don't need to specify both the source and dest on the remount -- just the dest.
Last edited by falconindy (2012-01-31 13:32:12)

Error : A READ-ONLY bind variable used in OUT or IN-OUT context

Hi,
I got error from my report as A READ-ONLY bind variable used in OUT or IN-OUT context in formula column. I already face this problem but at that time i cleared , but now i cont able to do, please give suggestion to this
regards
venki

I find my ERROR in that report, that A READ-ONLY bind variable used in OUT or IN-OUT context is
when we assign a database column in a placeholder are summary column.
From that placeholder or summary column will call by formula column
you might be face that error, But how means
when that database column , we are assign that decode, case or NVL funtion using else condition as Null you may be face that error.
Without my knowledge it may seem some other problem also
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venki

Error A READ-ONLY bind variable used in OUT or IN-OUT context (report6i)

cf_1 cf_2 balance
a 1 3 2
b 3 2 1
c 3 3 0
tot=7 8 3
i am using conditional formatting to hide the cf_1 and cf_2 if balance=0
now i want to display tot should be
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a 1 3 2
b 3 2 1
tot=4 5 3
tot=a+b+c
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You'll probably need a Program Unit along the lines of:
DECLARE
BEGIN
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cf1 := 0;
cf2: =0;
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N.

External hard disc is read only on my MacBook air and I can't safe and export files on it, how can I change that

My external hard drive is read only on my MacBook air and I cand safe or export files to it. How can I change this so I can use the external hard drive to export my files and work on an other pc.

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Read Only Display of Radio group and Text area with counter not working

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I am using Apex 3.2, with 10g for the database
I have this form, with fields that will set to read only when status = 'closed'
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Dung,
That API seems to have a bug, it returns true/false/null, so you could use 'return not nvl(htmldb_util.current_user_in_group(p_group_name => 'APP Admin'),false)' to get a false value.
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Hi all,
Using Personalization in OA Framework, when I am trying to make field read only, which is inside Swich statement ,then that field get automatically hidden.but my purpose is to make that field read-only not hide.
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Dear Dfoto,
Thank you so much for being so kind to spend the effort and reply back, I though my question was left behind the sun... but now I am very happy in deed.
To be more specific, the Form has 2 parts. The first part "Subform1" any one can fill and sign.
The second part "Subform2", only certain users can fill and sign.
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Read-only bind mount using fstab and systemd

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