Hi Lucas,
Lucas Nussbaum <[email protected]> skribis:
> On 18/02/21 at 12:38 +0100, Ludovic Courtès wrote:
[...]
>> I tried grabbing mount options from there and reapplying them to the
>> MS_REMOUNT call (patch below). However, that still doesn’t work:
>>
>> --8<---------------cut here---------------start------------->8---
>> 14273
>> mount("/gnu/store/mmhimfwmmidf09jw1plw3aw1g1zn2nkh-bash-static-5.0.16",
>> "/tmp/guix-directory.Plgkgt//gnu/store/mmhimfwmmidf09jw1plw3aw1g1zn2nkh-bash-static-5.0.16",
>> 0x236a4b0, MS_RDONLY|MS_REMOUNT|MS_BIND, "rw,nosuid,nodev,relatime") = -1
>> EPERM (Operation not permitted)
>> --8<---------------cut here---------------end--------------->8---
>
> That's strange: it worked in my manual tests.
I investigated some more and can’t get it to work. Do you happen to
have a working invocation or C snippet?
Thanks,
Ludo’.
