Bug 63421
| Summary: | max loopback devices not detected but guessed | ||
|---|---|---|---|
| Product: | [Retired] Red Hat Public Beta | Reporter: | Simon Matter <simon.matter> |
| Component: | mkinitrd | Assignee: | Matt Wilson <msw> |
| Status: | CLOSED RAWHIDE | QA Contact: | David Lawrence <dkl> |
| Severity: | medium | Docs Contact: | |
| Priority: | medium | ||
| Version: | skipjack-beta1 | ||
| Target Milestone: | --- | ||
| Target Release: | --- | ||
| Hardware: | i386 | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | Bug Fix | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2002-04-15 07:31:25 UTC | Type: | --- |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
Sorry, I didn't look at the code well. Here is how a possible modification could
look like:
if [ -e /dev/.devfsd ]; then
LOOPDEV=/dev/loop/
else
LOOPDEV=/dev/loop
fi
unset LODEV
for dev in ${LOOPDEV}*; do
if losetup ${dev} $IMAGE 2>/dev/null; then
LODEV=${dev}
break
fi
done
if [ -z "$LODEV" ]; then
rm -rf $MNTPOINT $IMAGE
echo "All of your loopback devices are in use!" >&2
exit 1
fi
The only thing I don't like here is that loop devices are not tried in numerical
order but that's not a true problem. I think with this code loop creation will
succeed if you have
a) enough loop devices enabled in kernel or via module parameter and
b) have enough device nodes available
I added a command to nash to find the right block device more elegantly, and the fix is in 3.3.11. It should work for up to 256 loopback devices. |
From Bugzilla Helper: User-Agent: Mozilla/4.77 [de] (X11; U; Linux 2.2.19-6.2.16 i586) Description of problem: When I try to create a new initrd with mkinitrd (or through kernel upgrade), it complains "All of your loopback devices are in use!" and exits. I have "options loop max_loop=64" in /etc/modules.conf and can have much more than 8 loop devices. Version-Release number of selected component (if applicable): How reproducible: Always Steps to Reproduce: 1. mkinitrd myinitrd.img `uname -r` 2. 3. Actual Results: [root@xxl /boot]# mkinitrd myinitrd.img `uname -r` All of your loopback devices are in use! myinitrd.img was not created. Expected Results: [root@xxl /boot]# mkinitrd myinitrd.img `uname -r` myinitrd.img was created. Additional info: The following section in mkinitrd should be changed: if [ "$devnum" = "8" ]; then rm -rf $MNTPOINT $IMAGE echo "All of your loopback devices are in use!" >&2 exit 1 fi