Bug 25021 - RFE: consistency check and man page updates.
RFE: consistency check and man page updates.
Product: Red Hat Linux
Classification: Retired
Component: mount (Show other bugs)
i386 Linux
medium Severity medium
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Assigned To: Bernhard Rosenkraenzer
David Lawrence
: FutureFeature
Depends On:
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Reported: 2001-01-26 02:06 EST by Henri Schlereth
Modified: 2007-04-18 12:30 EDT (History)
0 users

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Fixed In Version:
Doc Type: Enhancement
Doc Text:
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Last Closed: 2001-01-26 02:06:08 EST
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RHEL 7.3 requirements from Atomic Host:
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Description Henri Schlereth 2001-01-26 02:06:04 EST
Per Glen I am referencing bug #24668 as initial background.

1. The man pages do not state that a umount -a will set /dev/root to ro (documentation issue)
If the points below arent fixed the man pages should at least provide something like the following.

umount -a will change /dev/root to read-only and mtab cannot be updated. A mount -a
can only be executed properly if you first do a mount -n -o remount rw /. Failure to do so
may cause some system instablity that may appear to require a re-boot. Following the 
above procedure of remounting /dev/root will avoid this. Additionally /dev/pts will
show erratic behavior such as respawing and locking up VT's on logout.

2. The mount -a command does not undo what umount -a does (consistency issue)
3. The umount -a will not set /root/dev to ro if you have customized partiton setups (eg / /boot or / /home)
( consistency issue).
4. Even the rc.sysinit specifically uses mount -n -o remount ro / instead of umount -a.

Based on the source code this is a "feature". However it is not well documented and doesnt work
consistently. The inconsistencies should be addressed by this release or future releases.
Comment 1 Bernhard Rosenkraenzer 2001-01-30 18:01:26 EST
Fixed the man page. Changing the inconsistencies is up to the
base package maintainer, but unless we want to introduce another
file (/etc/stuff-remounted-by-umount-a), I don't see how this can
be done without breaking other things.
Comment 2 Henri Schlereth 2001-02-01 13:29:57 EST
So does that mean you are going to contact the maintainer/developer or do I?

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