Public bug reported:
Ubuntu 20.04 installation fails on a disk attached behind Broadcom/LSI
MegaRAID adapter in presence of some disks with pre-installed OS. I am
attaching Full report of installation failure which has more details.
Below are reproduction steps and some details:
1. There are two Broadcom/LSI megaraid adapters. Controller 1 has two Virtual
disks(disk1 and disk2) and
Controller 2 has 1 virtual disk(disk3).
2. disk 1 and disk 3 have some pre-installed OS. Ubuntu 20.04 OS installation
is to be done on disk2.
3. After installation disk(disk2) is chosen and configured, installer reports
"Installation failure" and
generate one report. Report is attached to the bug.
4. I looked into the report logs and found some error logs:
--------------
previous partition number for 'partition-sda6' found to be '2'
previous partition: /sys/class/block/sda/sda2
An error occured handling 'partition-sda6': FileNotFoundError - [Errno 2] No
such file or directory: '/sys/class/block/sda/sda2/size'
finish: cmd-install/stage-partitioning/builtin/cmd-block-meta: FAIL:
configuring partition: partition-sda6
TIMED BLOCK_META: 6.739
finish: cmd-install/stage-partitioning/builtin/cmd-block-meta: FAIL: curtin
command block-meta
Traceback (most recent call last):
File
"/snap/subiquity/1569/lib/python3.6/site-packages/curtin/commands/main.py",
line 202, in main
ret = args.func(args)
File "/snap/subiquity/1569/lib/python3.6/site-packages/curtin/log.py", line
97, in wrapper
return log_time("TIMED %s: " % msg, func, *args, **kwargs)
File "/snap/subiquity/1569/lib/python3.6/site-packages/curtin/log.py", line
79, in log_time
return func(*args, **kwargs)
File
"/snap/subiquity/1569/lib/python3.6/site-packages/curtin/commands/block_meta.py",
line 88, in block_meta
return meta_custom(args)
File
"/snap/subiquity/1569/lib/python3.6/site-packages/curtin/commands/block_meta.py",
line 1786, in meta_custom
handler(command, storage_config_dict)
File
"/snap/subiquity/1569/lib/python3.6/site-packages/curtin/commands/block_meta.py",
line 670, in partition_handler
util.load_file(os.path.join(previous_partition, "size")))
File "/snap/subiquity/1569/lib/python3.6/site-packages/curtin/util.py", line
561, in load_file
with open(path, "rb") as fp:
FileNotFoundError: [Errno 2] No such file or directory:
'/sys/class/block/sda/sda2/size'
[Errno 2] No such file or directory: '/sys/class/block/sda/sda2/size'
---------------
/dev/sda is referenced as disk1 which has pre-installed OS. Ubuntu 20.04
installation is to be done on /dev/sdb.
5. I tried with option "scsi_mod.scan=async" passed to grub prompt of
installation media but it did not work too.
Expectation is OS installation should not halt as drive which reports
errors is not the one on which Ubuntu 20.04 installation is attempted.
Please let me know if you need more details.
** Affects: subiquity
Importance: Undecided
Status: New
** Tags: focal
** Attachment added: "Ubuntu 20.04 Installation failure report"
https://bugs.launchpad.net/bugs/1877432/+attachment/5367943/+files/1588868482.229006529.install_fail.crash
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https://bugs.launchpad.net/bugs/1877432
Title:
Ubuntu 20.04 installation fails in presence of a disk which has some
pre-installed OS
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