#1326 Issue closed: "rear mkrescue" fails with "BUG! Unknown bootloader" - nvme sys block device not included

Labels: enhancement, support / question, fixed / solved / done

miked314 opened issue at 2017-04-23 15:32:

  • rear version (/usr/sbin/rear -V):
    Relax-and-Recover 2.00 / Git

  • OS version (cat /etc/rear/os.conf or lsb_release -a):
    LSB modules are available. Distributor ID: Ubuntu Description: Ubuntu 17.04 Release: 17.04 Codename: zesty

  • rear configuration files (cat /etc/rear/site.conf or cat /etc/rear/local.conf):
    OUTPUT=ISO BACKUP=NETFS BACKUP_URL="nfs://xxx.xxx.xxx.xxx/mnt/BigBerta/backup/"

  • Are you using legacy BIOS or UEFI boot?
    UEFI

  • Brief description of the issue:
    "rear mkrescue" fails with "BUG! Unknown bootloader"
    file /usr/share/rear/prep/default/500_guess_bootloader.sh looks for block devices in /sys/block
    that start with: hd sd cciss vd xvd however im using nvme disk and block device appear as nvme0n1 on my DELL XPS 13

michal@xps:~$ ll /sys/block/
total 0
drwxr-xr-x 2 root root 0 Apr 23 10:21 ./
dr-xr-xr-x 13 root root 0 Apr 23 08:40 ../
lrwxrwxrwx 1 root root 0 Apr 22 21:31 loop0 -> ../devices/virtual/block/loop0/
lrwxrwxrwx 1 root root 0 Apr 22 21:31 loop1 -> ../devices/virtual/block/loop1/
lrwxrwxrwx 1 root root 0 Apr 22 21:31 loop2 -> ../devices/virtual/block/loop2/
lrwxrwxrwx 1 root root 0 Apr 22 21:31 loop3 -> ../devices/virtual/block/loop3/
lrwxrwxrwx 1 root root 0 Apr 22 21:31 loop4 -> ../devices/virtual/block/loop4/
lrwxrwxrwx 1 root root 0 Apr 22 21:31 loop5 -> ../devices/virtual/block/loop5/
lrwxrwxrwx 1 root root 0 Apr 22 21:31 loop6 -> ../devices/virtual/block/loop6/
lrwxrwxrwx 1 root root 0 Apr 22 21:31 loop7 -> ../devices/virtual/block/loop7/
lrwxrwxrwx 1 root root 0 Apr 22 15:50 nvme0n1 -> ../devices/pci0000:00/0000:00:1d.0/0000:3c:00.0/nvme/nvme0/nvme0n1/

  • Work-around, if any:
    change line 15 in /usr/share/rear/prep/default/500_guess_bootloader.sh
    from
    if [[ $blockd = hd* || $blockd = sd* || $blockd = cciss* || $blockd = vd* || $blockd = xvd* ]] ; then
    to:
    if [[ $blockd = hd* || $blockd = sd* || $blockd = cciss* || $blockd = vd* || $blockd = xvd* || $blockd = nvme* ]] ; then

gozora commented at 2017-04-23 16:14:

@miked314 I guess you are a bit late ;-).
Until I'm not wrong, something similar was fixed in https://github.com/rear/rear/pull/1191

V.

miked314 commented at 2017-04-23 21:53:

Yes. You are right. I didn't​ check recent bug fixes.

jsmeix commented at 2017-04-24 10:12:

I think the issue is solved via https://github.com/rear/rear/pull/1191

@miked314 FYI:

How to test the currently newest ReaR GitHub master code
(even independent of an already installed ReaR software):

Basically "git clone" it into a directory and then
configure and run it from within that directory like:

# git clone https://github.com/rear/rear.git

# cd rear

# vi etc/rear/local.conf

# usr/sbin/rear -d -D mkbackup

(note the relative paths "etc/rear/" and "usr/sbin/").

[Export of Github issue for rear/rear.]