search for: loopdev

...opback_helper() { local next_devnum=0 local busy_devnum while read busy_devnum; do if [ "$next_devnum" != "$busy_devnum" ]; then break fi let next_devnum=$next_devnum+1 done echo "/dev/loop${next_devnum}" } find_free_loopback_dev() { local loopdev loopdev=$(losetup -a | sed -e 's+^/dev/loop++' -e 's/:.*//' | find_free_loopback_helper) if [ -n "$loopdev" ] && [ -b "$loopdev" ]; then echo "$loopdev" fi } check_sharing() { local dev="$1" local mode="$2" lo...

In libguestfs we have a few tests that require root privileges and they are skipped by default (normally you should not build or test as root), but you can do this to run them: sudo make check-root In nbdkit I wanted to check that the file plugin works with block devices (this is not tested), and the only way I can sensibly think to do this is using a loopback device and root. This commit

...o maybe this problem is better solved by teaching /etc/xen/scripts/block to mknod a new loop device if it can?t find one free. Untested patch: --- xen-common/tools/hotplug/Linux/block +++ xen-common/tools/hotplug/Linux/block @@ -329,6 +329,13 @@ fi done + if [ "$loopdev" = '' ] + then + loopdev=$(seq -f '/dev/loop%.f' 0 1048575 | \ + grep -Fxv -m1 -f <(echo /dev/loop* | tr ' ' '\n')) && \ + mknod "$loopdev" b 7 "${loopdev#/dev/loop}" + fi +...

Hello, I'm trying to boot a dos floppy stored on a disk image which is initially loaded over pxe using memdisk. I've created the disk image as follows: dd if=/dev/zero of=$IMGLOCATION/$IMGNAME bs=$(( 1024 * 1024 )) count=20 LOOPDEV=$(losetup --show -f $IMGLOCATION/$IMGNAME) MAJOR_MINOR=$(ls -l $LOOPDEV|awk '{print $5$6}'|sed 's/,/:/') DMSIZE=$(( $(ls -l $IMGLOCATION/$IMGNAME|awk '{print $5}') / 512 )) echo 0 $DMSIZE linear $MAJOR_MINOR 0|dmsetup create hdz fdisk /dev/mapper/hdz<<EOT n p 1 t 6 a...

Hello all, I have some DomU''s with root and swap images on files under Xen 3.0.0 Investigating some cases of boot failure of domUs, I stumbled upon the fact that when a domU is shutdown via xm shutdown, not all of its images are released from their /dev/loopX - devices. That is, for i in /dev/loop*; do losetup $i; done still shows output for that image. It seems to me that the

Hey all, This utility (from Qemu) might be useful to anyone who has multiple partitions on a file-backed VBD and wants occasionally to mount them in dom0. http://www.dad-answers.com/qemu/utilities/QEMU-HD-Mounter/lomount/ You can tell it what partition to mount out of the file and it sorts out the offsets, etc. by parsing the partition table. This allows you to get around the loop

Hi, I''ve some btrfs fs which are encrypted with loopaes. I decrypt them in a script during bootup. Now I want to determine if the decrypted fs is a btrfs fs. If not I missspelled the password and I can handle that error in my script. Thanks for any help! Felix -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to

...have to wait a short time for the pid file to appear. for i in `seq 1 10`; do diff --git a/tests/test-file-block.c b/tests/test-file-block.c index f053242..e2ea068 100644 --- a/tests/test-file-block.c +++ b/tests/test-file-block.c @@ -124,9 +124,8 @@ main (int argc, char *argv[]) atexit (detach_loopdev); /* Start nbdkit. */ - snprintf (buf, sizeof buf, "file=%s", loopdev); if (test_start_nbdkit ("-D", "file.zero=1", - "file", buf, NULL) == -1) + "file", loopdev, NULL) == -1) exit (EXIT_...

...have to wait a short time for the pid file to appear. for i in `seq 1 10`; do diff --git a/tests/test-file-block.c b/tests/test-file-block.c index f053242..e2ea068 100644 --- a/tests/test-file-block.c +++ b/tests/test-file-block.c @@ -124,9 +124,8 @@ main (int argc, char *argv[]) atexit (detach_loopdev); /* Start nbdkit. */ - snprintf (buf, sizeof buf, "file=%s", loopdev); if (test_start_nbdkit ("-D", "file.zero=1", - "file", buf, NULL) == -1) + "file", loopdev, NULL) == -1) exit (EXIT_...

Remove the need to use file= (and in future other) parameters for many plugins. eg. Using the file plugin becomes: nbdkit file disk.img Rich.

v1 was here: https://www.redhat.com/archives/libguestfs/2018-September/msg00024.html v2: - As discussed in the patch review, tighten up the characters permitted in keys. - Update documentation to note that relative paths can be made safe by prefixing with ./ and absolute paths do not need any extra steps. - I pushed patch 1/6 from the v1 series since it was just a trivial

v1: https://www.redhat.com/archives/libguestfs/2018-September/msg00024.html v2: https://www.redhat.com/archives/libguestfs/2018-September/msg00034.html v3: - Fixed is_config_key zero length test. - Fixed is_config_key so it uses strspn and is not O(n^2). - Changed >= 1.7 to >= 1.8 in the documentation. Rich.