Get rid of /etc/mtab and store userspace options in /run
| Affects | Status | Importance | Assigned to | Milestone | |
|---|---|---|---|---|---|
| util-linux (Ubuntu) |
Fix Released
|
Low
|
Canonical Foundations Team | ||
Bug Description
/etc/mtab has always been a bit of a wart, as it's potentially broken to put information about mounted file system on a mountedfile system. It is out of date in rescue mode when / is read-only (but "mount" output won't tell you), and leads to bugs like bug 891688 or bug 13131.
The only reason why we still have it is that /proc/mounts is not able to store userspace-only extra options which e. g. udisks (uhelper=udisks), pm-utils (commit=XXX), or NFS use.
These days there is a better option for this. Copying response from util-linux upstream Karel Zak:
"When linked with libmount (--enable-
See Fedora, we don't use mtab any more. (Well, some utils like df have problem to de-duplicate list of mounted filesystems, but all
basic things works as expected.)"
This is worth investigating for the Q cycle.
| Martin Pitt (pitti) wrote | #1 |
| summary: |
- Get rid of /etc/mtab + Get rid of /etc/mtab and store userspace options in /run |
| Changed in util-linux (Ubuntu): | |
| status: | New → Triaged |
| assignee: | nobody → Martin Pitt (pitti) |
| importance: | Undecided → Low |
| Steve Langasek (vorlon) wrote | #2 |
| Martin Pitt (pitti) wrote | #3 |
| Changed in util-linux (Ubuntu Quantal): | |
| assignee: | nobody → Canonical Foundations Team (canonical-foundations) |
| no longer affects: | util-linux (Ubuntu Quantal) |
| Martin Pitt (pitti) wrote | #4 |
| Changed in util-linux (Ubuntu): | |
| status: | Triaged → Fix Released |
Subscribing Foundations team for comments/input, but assigning to myself for now.