Bug 605356
Summary: | regression for /dev/live symlink | ||||||
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Product: | Red Hat Enterprise Linux 6 | Reporter: | Joey Boggs <jboggs> | ||||
Component: | dracut | Assignee: | Harald Hoyer <harald> | ||||
Status: | CLOSED CURRENTRELEASE | QA Contact: | Release Test Team <release-test-team-automation> | ||||
Severity: | medium | Docs Contact: | |||||
Priority: | medium | ||||||
Version: | 6.0 | CC: | apevec, atodorov, pknirsch, syeghiay | ||||
Target Milestone: | rc | ||||||
Target Release: | --- | ||||||
Hardware: | All | ||||||
OS: | Linux | ||||||
Whiteboard: | |||||||
Fixed In Version: | dracut-004-25.el6 | Doc Type: | Bug Fix | ||||
Doc Text: | Story Points: | --- | |||||
Clone Of: | |||||||
: | 605358 (view as bug list) | Environment: | |||||
Last Closed: | 2010-11-10 20:19:21 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: | |||||||
Bug Depends On: | |||||||
Bug Blocks: | 605358 | ||||||
Attachments: |
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Comment 2
Harald Hoyer
2010-06-17 17:45:06 UTC
This request was evaluated by Red Hat Product Management for inclusion in a Red Hat Enterprise Linux major release. Product Management has requested further review of this request by Red Hat Engineering, for potential inclusion in a Red Hat Enterprise Linux Major release. This request is not yet committed for inclusion. nothing new came from adding: /sbin/udevadm trigger --action=add What exactly is the rule involved? Actually I left out some information. With version 147-2.18+ If I boot with rdbreak=pre-pivot the /dev/live link does exist in the emergency shell, it just disappears when the system fully boots if that helps The rules involved are just the regular dmsquash ones, or did I misunderstand what you were asking? dracut/modules.d/90dmsquash-live/dmsquash-live-genrules.sh Those rules are present only in initramfs, aren't they? So udev trigger running in rootfs doesn't see them and wipes the symlinks? (In reply to comment #4) > nothing new came from adding: /sbin/udevadm trigger --action=add so, to prove the concept: /sbin/udevadm trigger --action=change will work then? still didnt leave /dev/live when adding --action=change are you reverting this change will make it work again? - /sbin/udevadm trigger + /sbin/udevadm trigger --type=subsystems --action=add + /sbin/udevadm trigger --type=devices --action=add Nearly impossible.. s/are you reverting/are you sure, reverting/ the section in start_udev looks like: # /sbin/udevadmin trigger --action=add /sbin/udevadm trigger --type=subsystems --action=add /sbin/udevadm trigger --type=devices --action=add /sbin/udevadm trigger --action=change (In reply to comment #12) > the section in start_udev looks like: > > # /sbin/udevadmin trigger --action=add > /sbin/udevadm trigger --type=subsystems --action=add > /sbin/udevadm trigger --type=devices --action=add > /sbin/udevadm trigger --action=change first test: /sbin/udevadm trigger second test: /sbin/udevadm trigger --action=change third test: /sbin/udevadm trigger --action=add ... not all together! Tried all of those separately and was not able to get /dev/live to appear when using 147-2.18+. the first test we tried a few days ago seemed to work fine so I went back and retested /sbin/udevadm trigger. Which failed.
After that I went back to the host I was building my udev rpms on and grabbed the 147-2.17.src.rpm and added in the 2 udevadm lines that were in 147-2.18:
> /sbin/udevadm trigger --type=subsystems --action=add
> /sbin/udevadm trigger --type=devices --action=add
Those work when added to 2-17, so it's something else that changed between 147-2.17 and 18. nothing stands out to me in the diff between between the src rpms other than modified already existing patch files.
The most probable change in start_udev, which could affect this is: -rm -fr $udev_root/.udev > "$udev_root/null" 2>&1 which removed the removal of the udev database, which was a necessary change for device-mapper. So, udev now knows about the old /dev/live symlink and removes it upon new actions, because the rule for the symlink, which is in the initramfs does not exist anymore. A possible fix would be to write the /dev/live rule to /dev/.udev/rules.d in the initramfs, so it would survive the retrigger. Assigning to dracut. proposed fix: http://dracut.git.sourceforge.net/git/gitweb.cgi?p=dracut/dracut;a=commitdiff;h=ae5ec68355f580ca4b86aa35fbbcbb0ed0900bb6 oh.. you might have a buggy cdrom.. is the symlink present after you poll the cdrom with: # echo change > /sys/block/sr0/uevent ?? also you might check: # udevadm info --query=all --name=/dev/sr0 (In reply to comment #21) > oh.. you might have a buggy cdrom.. possible, it's QEMU emulated CD-ROM: Host: scsi1 Channel: 00 Id: 00 Lun: 00 Vendor: QEMU Model: QEMU DVD-ROM Rev: 0.12 Type: CD-ROM ANSI SCSI revision: 05 > is the symlink present after you poll the cdrom with: > # echo change > /sys/block/sr0/uevent neither /dev/live nor /dev/disk/by-label/ovirt-node-image showed up (In reply to comment #22) > # udevadm info --query=all --name=/dev/sr0 P: /devices/pci0000:00/0000:00:01.1/host1/target1:0:0/1:0:0:0/block/sr0 N: sr0 S: block/11:0 S: scd0 S: disk/by-path/pci-0000:00:01.1-scsi-1:0:0:0 E: UDEV_LOG=3 E: DEVPATH=/devices/pci0000:00/0000:00:01.1/host1/target1:0:0/1:0:0:0/block/sr0 E: MAJOR=11 E: MINOR=0 E: DEVNAME=/dev/sr0 E: DEVTYPE=disk E: SUBSYSTEM=block E: MPATH_SBIN_PATH=/sbin E: ID_CDROM=1 E: ID_SCSI=1 E: ID_VENDOR=QEMU E: ID_VENDOR_ENC=QEMU\x20\x20\x20\x20 E: ID_MODEL=QEMU_DVD-ROM E: ID_MODEL_ENC=QEMU\x20DVD-ROM\x20\x20\x20\x20 E: ID_REVISION=0.12 E: ID_TYPE=cd E: ID_BUS=scsi E: ID_PATH=pci-0000:00:01.1-scsi-1:0:0:0 E: ACL_MANAGE=1 E: DEVLINKS=/dev/block/11:0 /dev/scd0 /dev/disk/by-path/pci-0000:00:01.1-scsi-1:0:0:0 (In reply to comment #23) > (In reply to comment #21) > > oh.. you might have a buggy cdrom.. > possible, it's QEMU emulated CD-ROM: ...or maybe not, I got the same behaviour on a physical machine with Plextor DVD-ROM which is unlikely to be buggy. ok, that's odd... what's the output of: # /lib/udev/cdrom_id /dev/sr0 # udevadm test $(readlink -f /sys/block/sr0) Looks we're finally onto something: # /lib/udev/cdrom_id /dev/sr0 unable to open '/dev/sr0 open("/dev/sr0", O_RDONLY|O_EXCL|O_NONBLOCK) = -1 EBUSY (Device or resource busy) ...LiveCD is of course mounted by dmsquash-live dracut script. I just wonder how come that blkid /dev/sr0 works?? # udevadm test $(readlink -f /sys/block/sr0) run_command: calling: test udevadm_test: version 147 This program is for debugging only, it does not run any program, specified by a RUN key. It may show incorrect results, because some values may be different, or not available at a simulation run. parse_file: reading '/lib/udev/rules.d/10-console.rules' as rules file parse_file: reading '/lib/udev/rules.d/10-dm.rules' as rules file add_rule: name empty, node creation suppressed parse_file: reading '/lib/udev/rules.d/11-dm-lvm.rules' as rules file parse_file: reading '/lib/udev/rules.d/13-dm-disk.rules' as rules file parse_file: reading '/lib/udev/rules.d/40-isdn.rules' as rules file parse_file: reading '/lib/udev/rules.d/40-multipath.rules' as rules file parse_file: reading '/lib/udev/rules.d/40-redhat.rules' as rules file parse_file: reading '/lib/udev/rules.d/50-firmware.rules' as rules file parse_file: reading '/lib/udev/rules.d/50-udev-default.rules' as rules file parse_file: reading '/lib/udev/rules.d/60-cdrom_id.rules' as rules file parse_file: reading '/lib/udev/rules.d/60-net.rules' as rules file parse_file: reading '/lib/udev/rules.d/60-persistent-alsa.rules' as rules file parse_file: reading '/lib/udev/rules.d/60-persistent-input.rules' as rules file parse_file: reading '/lib/udev/rules.d/60-persistent-serial.rules' as rules file parse_file: reading '/lib/udev/rules.d/60-persistent-storage-tape.rules' as rules file parse_file: reading '/lib/udev/rules.d/60-persistent-storage.rules' as rules file parse_file: reading '/lib/udev/rules.d/60-persistent-v4l.rules' as rules file parse_file: reading '/etc/udev/rules.d/60-raw.rules' as rules file parse_file: reading '/lib/udev/rules.d/61-mobile-action.rules' as rules file parse_file: reading '/lib/udev/rules.d/61-option-modem-modeswitch.rules' as rules file parse_file: reading '/lib/udev/rules.d/61-persistent-storage-edd.rules' as rules file parse_file: reading '/lib/udev/rules.d/64-device-mapper.rules' as rules file parse_file: reading '/lib/udev/rules.d/64-md-raid.rules' as rules file parse_file: reading '/lib/udev/rules.d/65-md-incremental.rules' as rules file parse_file: reading '/lib/udev/rules.d/70-acl.rules' as rules file parse_file: reading '/lib/udev/rules.d/70-hid2hci.rules' as rules file parse_file: reading '/etc/udev/rules.d/70-persistent-cd.rules' as rules file parse_file: reading '/etc/udev/rules.d/70-persistent-net.rules' as rules file parse_file: reading '/lib/udev/rules.d/75-cd-aliases-generator.rules' as rules file parse_file: reading '/lib/udev/rules.d/75-net-description.rules' as rules file parse_file: reading '/lib/udev/rules.d/75-persistent-net-generator.rules' as rules file parse_file: reading '/lib/udev/rules.d/75-tty-description.rules' as rules file parse_file: reading '/lib/udev/rules.d/78-sound-card.rules' as rules file parse_file: reading '/lib/udev/rules.d/79-fstab_import.rules' as rules file parse_file: reading '/lib/udev/rules.d/80-drivers.rules' as rules file parse_file: reading '/etc/udev/rules.d/80-kvm.rules' as rules file parse_file: reading '/lib/udev/rules.d/88-clock.rules' as rules file parse_file: reading '/etc/udev/rules.d/90-hal.rules' as rules file parse_file: reading '/etc/udev/rules.d/91-drm-modeset.rules' as rules file parse_file: reading '/lib/udev/rules.d/95-dm-notify.rules' as rules file parse_file: reading '/lib/udev/rules.d/95-keymap.rules' as rules file parse_file: reading '/lib/udev/rules.d/95-udev-late.rules' as rules file parse_file: reading '/etc/udev/rules.d/98-kexec.rules' as rules file parse_file: reading '/dev/.udev/rules.d/99-live-mount.rules' as rules file parse_file: reading '/etc/udev/rules.d/99-vdsm.rules' as rules file udev_rules_new: rules use 25428 bytes tokens (2119 * 12 bytes), 15528 bytes buffer udev_rules_new: temporary index used 16140 bytes (807 * 20 bytes) udev_device_new_from_syspath: device 0x8d28a0 has devpath '/devices/pci0000:00/0000:00:01.1/host1/target1:0:0/1:0:0:0/block/sr0' udev_device_new_from_syspath: device 0x8d2a80 has devpath '/devices/pci0000:00/0000:00:01.1/host1/target1:0:0/1:0:0:0/block/sr0' udev_device_read_db: device 0x8d2a80 filled with db file data udev_rules_apply_to_event: PROGRAM '/sbin/multipath -c /dev/sr0' /lib/udev/rules.d/40-multipath.rules:11 util_run_program: '/sbin/multipath -c /dev/sr0' started util_run_program: '/sbin/multipath' (stdout) '/dev/sr0 is not a valid multipath device path' util_run_program: '/sbin/multipath -c /dev/sr0' returned with exitcode 1 udev_rules_apply_to_event: RUN 'socket:/org/kernel/dm/multipath_event' /lib/udev/rules.d/40-multipath.rules:16 udev_rules_apply_to_event: LINK 'block/11:0' /lib/udev/rules.d/50-udev-default.rules:3 udev_rules_apply_to_event: GROUP 6 /lib/udev/rules.d/50-udev-default.rules:76 udev_rules_apply_to_event: GROUP 11 /lib/udev/rules.d/50-udev-default.rules:84 udev_rules_apply_to_event: LINK 'scd0' /lib/udev/rules.d/50-udev-default.rules:84 udev_rules_apply_to_event: IMPORT 'cdrom_id --export /dev/sr0' /lib/udev/rules.d/60-cdrom_id.rules:9 util_run_program: 'cdrom_id --export /dev/sr0' started cdrom_id[1202]: custom logging function 0x1302010 registered cdrom_id[1202]: unable to open '/dev/sr0' util_run_program: '/lib/udev/cdrom_id' (stderr) 'unable to open '/dev/sr0'' util_run_program: 'cdrom_id --export /dev/sr0' returned with exitcode 1 udev_device_new_from_syspath: device 0x8f7d20 has devpath '/devices/pci0000:00/0000:00:01.1/host1/target1:0:0/1:0:0:0' udev_device_new_from_syspath: device 0x8f82e0 has devpath '/devices/pci0000:00/0000:00:01.1/host1/target1:0:0' udev_device_new_from_syspath: device 0x8f84b0 has devpath '/devices/pci0000:00/0000:00:01.1/host1' udev_device_new_from_syspath: device 0x904e60 has devpath '/devices/pci0000:00/0000:00:01.1' udev_device_new_from_syspath: device 0x905090 has devpath '/devices/pci0000:00' udev_rules_apply_to_event: IMPORT 'scsi_id --export --whitelisted -d /dev/sr0' /lib/udev/rules.d/60-persistent-storage.rules:37 util_run_program: 'scsi_id --export --whitelisted -d /dev/sr0' started scsi_id[1203]: custom logging function 0x1be6010 registered scsi_id[1203]: 11:0: page 0 not available. util_run_program: '/lib/udev/scsi_id' (stdout) 'ID_SCSI=1' util_run_program: '/lib/udev/scsi_id' (stdout) 'ID_VENDOR=QEMU' util_run_program: '/lib/udev/scsi_id' (stdout) 'ID_VENDOR_ENC=QEMU\x20\x20\x20\x20' util_run_program: '/lib/udev/scsi_id' (stdout) 'ID_MODEL=QEMU_DVD-ROM' util_run_program: '/lib/udev/scsi_id' (stdout) 'ID_MODEL_ENC=QEMU\x20DVD-ROM\x20\x20\x20\x20' util_run_program: '/lib/udev/scsi_id' (stdout) 'ID_REVISION=0.12' util_run_program: '/lib/udev/scsi_id' (stdout) 'ID_TYPE=cd' util_run_program: 'scsi_id --export --whitelisted -d /dev/sr0' returned with exitcode 0 udev_rules_apply_to_event: IMPORT 'path_id /devices/pci0000:00/0000:00:01.1/host1/target1:0:0/1:0:0:0/block/sr0' /lib/udev/rules.d/60-persistent-storage.rules:56 util_run_program: 'path_id /devices/pci0000:00/0000:00:01.1/host1/target1:0:0/1:0:0:0/block/sr0' started path_id[1204]: custom logging function 0xc9e010 registered path_id[1204]: device 0xc9e0e0 has devpath '/devices/pci0000:00/0000:00:01.1/host1/target1:0:0/1:0:0:0/block/sr0' path_id[1204]: device 0xc9e3a0 has devpath '/devices/pci0000:00/0000:00:01.1/host1/target1:0:0/1:0:0:0' path_id[1204]: device 0xc9e730 has devpath '/devices/pci0000:00/0000:00:01.1/host1/target1:0:0' path_id[1204]: device 0xc9ea40 has devpath '/devices/pci0000:00/0000:00:01.1/host1' path_id[1204]: device 0xc9ed40 has devpath '/devices/pci0000:00/0000:00:01.1' path_id[1204]: device 0xc9f030 has devpath '/devices/pci0000:00' util_run_program: '/lib/udev/path_id' (stdout) 'ID_PATH=pci-0000:00:01.1-scsi-1:0:0:0' util_run_program: 'path_id /devices/pci0000:00/0000:00:01.1/host1/target1:0:0/1:0:0:0/block/sr0' returned with exitcode 0 udev_rules_apply_to_event: LINK 'disk/by-path/pci-0000:00:01.1-scsi-1:0:0:0' /lib/udev/rules.d/60-persistent-storage.rules:57 udev_rules_apply_to_event: LINK 'cdrom' /etc/udev/rules.d/70-persistent-cd.rules:8 udev_rules_apply_to_event: RUN 'socket:@/org/freedesktop/hal/udev_event' /etc/udev/rules.d/90-hal.rules:2 udev_event_execute_rules: no node name set, will use kernel supplied name 'sr0' udev_device_update_db: created db file for '/devices/pci0000:00/0000:00:01.1/host1/target1:0:0/1:0:0:0/block/sr0' in '/dev/.udev/db/block:sr0' udev_node_add: creating device node '/dev/sr0', devnum=11:0, mode=0660, uid=0, gid=11 udev_node_mknod: preserve file '/dev/sr0', because it has correct dev_t udev_node_mknod: preserve permissions /dev/sr0, 060660, uid=0, gid=11 node_symlink: preserve already existing symlink '/dev/block/11:0' to '../sr0' link_find_prioritized: found '/sys/devices/pci0000:00/0000:00:01.1/host1/target1:0:0/1:0:0:0/block/sr0' claiming '/dev/.udev/links/scd0' link_update: creating link '/dev/scd0' to '/dev/sr0' node_symlink: preserve already existing symlink '/dev/scd0' to 'sr0' link_find_prioritized: found '/sys/devices/pci0000:00/0000:00:01.1/host1/target1:0:0/1:0:0:0/block/sr0' claiming '/dev/.udev/links/disk\x2fby-path\x2fpci-0000:00:01.1-scsi-1:0:0:0' link_update: creating link '/dev/disk/by-path/pci-0000:00:01.1-scsi-1:0:0:0' to '/dev/sr0' node_symlink: preserve already existing symlink '/dev/disk/by-path/pci-0000:00:01.1-scsi-1:0:0:0' to '../../sr0' link_find_prioritized: found '/sys/devices/pci0000:00/0000:00:01.1/host1/target1:0:0/1:0:0:0/block/sr0' claiming '/dev/.udev/links/cdrom' link_update: creating link '/dev/cdrom' to '/dev/sr0' node_symlink: preserve already existing symlink '/dev/cdrom' to 'sr0' udevadm_test: UDEV_LOG=6 udevadm_test: DEVPATH=/devices/pci0000:00/0000:00:01.1/host1/target1:0:0/1:0:0:0/block/sr0 udevadm_test: MAJOR=11 udevadm_test: MINOR=0 udevadm_test: DEVNAME=/dev/sr0 udevadm_test: DEVTYPE=disk udevadm_test: ACTION=add udevadm_test: SUBSYSTEM=block udevadm_test: MPATH_SBIN_PATH=/sbin udevadm_test: DEVLINKS=/dev/block/11:0 /dev/scd0 /dev/disk/by-path/pci-0000:00:01.1-scsi-1:0:0:0 /dev/cdrom udevadm_test: ID_CDROM=1 udevadm_test: ID_SCSI=1 udevadm_test: ID_VENDOR=QEMU udevadm_test: ID_VENDOR_ENC=QEMU\x20\x20\x20\x20 udevadm_test: ID_MODEL=QEMU_DVD-ROM udevadm_test: ID_MODEL_ENC=QEMU\x20DVD-ROM\x20\x20\x20\x20 udevadm_test: ID_REVISION=0.12 udevadm_test: ID_TYPE=cd udevadm_test: ID_BUS=scsi udevadm_test: ID_PATH=pci-0000:00:01.1-scsi-1:0:0:0 udevadm_test: ACL_MANAGE=1 udevadm_test: GENERATED=1 udevadm_test: run: 'socket:/org/kernel/dm/multipath_event' udevadm_test: run: 'socket:@/org/freedesktop/hal/udev_event' (In reply to comment #27) > Looks we're finally onto something: > > # /lib/udev/cdrom_id /dev/sr0 > unable to open '/dev/sr0 > > open("/dev/sr0", O_RDONLY|O_EXCL|O_NONBLOCK) = -1 EBUSY (Device or resource > busy) > > ...LiveCD is of course mounted by dmsquash-live dracut script. Huh? cdrom_id should not use O_EXCL, if it finds, that the device is mounted.. # mount |grep sr1 /dev/sr1 on /mnt type iso9660 (ro) # /lib/udev/cdrom_id /dev/sr1 ID_CDROM=1 ID_CDROM_CD_R=1 ID_CDROM_CD_RW=1 ID_CDROM_DVD=1 ID_CDROM_DVD_R=1 ID_CDROM_DVD_RW=1 ID_CDROM_DVD_RAM=1 ID_CDROM_DVD_PLUS_R=1 ID_CDROM_DVD_PLUS_RW=1 ID_CDROM_MEDIA=1 ID_CDROM_MEDIA_CD=1 ID_CDROM_MEDIA_SESSION_COUNT=1 ID_CDROM_MEDIA_TRACK_COUNT=1 ID_CDROM_MEDIA_TRACK_COUNT_DATA=1 works for me.. what is # cat /proc/self/mountinfo ? (In reply to comment #28) > Huh? cdrom_id should not use O_EXCL, if it finds, that the device is mounted.. It's mounted before switching root so it's not visible in /proc/self/mountinfo, but it's definitely in use since root is on ISO ( ISO -> LiveOS/squashfs.img -> LiveOS/ext3fs.img ) # losetup -a /dev/loop0: [0001]:5876 (/osmin.img) /dev/loop1: [0700]:2 (/squashfs.osmin/osmin) /dev/loop2: [0b00]:1938 (/sysroot/LiveOS/squashfs.img) /dev/loop3: [0702]:3 (/squashfs/LiveOS/ext3fs.img) /dev/loop4: [0001]:5906 (/overlay) Why would cdrom_id ever need O_EXCL, i.e. what about: - fd = open(node, O_RDONLY|O_NONBLOCK|(is_mounted(node) ? 0 : O_EXCL)); + fd = open(node, O_RDONLY|O_NONBLOCK); (In reply to comment #29) > (In reply to comment #28) > > Huh? cdrom_id should not use O_EXCL, if it finds, that the device is mounted.. > > It's mounted before switching root so it's not visible in /proc/self/mountinfo, Why should the kernel drop this mount out of its table after the switch_root? Please show me /proc/self/mountinfo > but it's definitely in use since root is on ISO ( ISO -> LiveOS/squashfs.img -> > LiveOS/ext3fs.img ) > # losetup -a > /dev/loop0: [0001]:5876 (/osmin.img) > /dev/loop1: [0700]:2 (/squashfs.osmin/osmin) > /dev/loop2: [0b00]:1938 (/sysroot/LiveOS/squashfs.img) > /dev/loop3: [0702]:3 (/squashfs/LiveOS/ext3fs.img) > /dev/loop4: [0001]:5906 (/overlay) > > Why would cdrom_id ever need O_EXCL, i.e. what about: > > - fd = open(node, O_RDONLY|O_NONBLOCK|(is_mounted(node) ? 0 : O_EXCL)); > + fd = open(node, O_RDONLY|O_NONBLOCK); That's because of disk burning. and /proc/mounts ok.. tried it myself and mounted the cdrom. /proc/self/mountinfo does not contain the info... /proc/mounts does. Created attachment 426879 [details]
patch to mount the cdrom in the /dev/.initramfs namespace
Can you try this patch please?
# cd /usr/share/dracut
# patch -p1 < <path to patch>
and try with a new initramfs?
this patch is an addition to the first patch *** Bug 605358 has been marked as a duplicate of this bug. *** (In reply to comment #33) > # cd /usr/share/dracut > # patch -p1 < <path to patch> > > and try with a new initramfs? For livecd you can't just rebuild initramfs, ISO needs to be rebuilt with the patched dracut in the repository. I did a scratch build with both dracut-ae5ec68355f580ca4b86aa35fbbcbb0ed0900bb6.patch and dmsquash-mount.patch from comment 33. In the image I can see /usr/share/dracut/modules.d/90dmsquash-live/dmsquash-live-root is patched and there's /dev/.initramfs/live but nothing mounted there => cdrom_id still tries&fails exclusive open => no /dev/disk/by-label/<CDLABEL> => no /dev/live We'll keep working on this BZ to fix LiveCDs in general, but as a matter of urgency I'll do a workaround for RHEVH/ovirt-node in bug 605358. Developed a fix and ready to commit, if the flags turn on +. Alan, I had to add "device-mapper" to the minimal kickstart. dracut-004-25.el6 btw, is the custom dracut.conf really necessary? On a snap #10 LiveCD # ls -l /dev/live lrwxrwxrwx. 1 root root 3 11 авг 16,00 /dev/live -> sr0 # blkid /dev/sr0 /dev/sr0: LABEL="RHEL6.0-20100807.0-Workstation-x" TYPE="iso9660" # ls -l /dev/disk/by-label/ lrwxrwxrwx. 1 root root 11 11 Aug 16,00 _RHEL6.0-2010080 -> ../../loop3 lrwxrwxrwx. 1 root root 9 11 Aug 16,00 RHEL6.0-20100807.0-Workstation-x -> ../../sr0 With previous snapshots there was no /dev/live or a link to /dev/sr0. Moving to VERIFIED. Red Hat Enterprise Linux 6.0 is now available and should resolve the problem described in this bug report. This report is therefore being closed with a resolution of CURRENTRELEASE. You may reopen this bug report if the solution does not work for you. |