James Pearson wrote:
We've come across a problem with 6.4 kernels that we didn't have with 6.2 kernels - which involves writing to a symlink that is on a read-only file system - but the symlink lands on a read-write file system
The following shows the issue:
mkdir -p /mnt/tmp mount -t tmpfs -o size=1% none /mnt/tmp rm -f /tmp/file ln -s /tmp/file /mnt/tmp/file mount -o remount,ro /mnt/tmp echo "some text" > /mnt/tmp/file
On a machine with a 6.2 kernel, the above works fine - the target of the symlink (/tmp/file) is created etc. with no error
But on a machine with a 6.4 kernel, the above fails with:
/mnt/tmp/file: Read-only file system.
Looks like this is known bug with 6.4 - and hopefully should be fixed in some later 'zstream' release
James Pearson