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modified post 09dad by Anonymous on Tue 19th Dec 2023 11:12
original post 3d4a83d9e by Anonymous on Tue 19th Dec 2023 11:06
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# ext4 filesystem being mounted at /root supports timestamps until 2038-01-19 (0x7fffffff)

1	1		# ext4 filesystem being mounted at /root supports timestamps until 2038-01-19 (0x7fffffff)
2	2
3	3		# tune2fs does not work:
4	4		root@EPU-102054501-AugustToepfer:/# tune2fs -I 256 /dev/sda2
5	5		tune2fs 1.42.12 (29-Aug-2014)
6	6		Changing the inode size not supported for filesystems with the flex_bg
7	7		feature enabled.
8	8		root@EPU-102054501-AugustToepfer:/# tune2fs -O ^flex_bg /dev/sda2
9	9		tune2fs 1.42.12 (29-Aug-2014)
10	10		Clearing the flex_bg flag would cause the the filesystem to be
11	11		inconsistent.
12	12
13	13		# switching to btrfs does not work:
14	14		root@EPU-102054501-AugustToepfer:~# btrfs-convert /dev/sda2
15	15		ERROR: block size is too small: 1024 < 4096
16	16		WARNING: an error occurred during conversion, filesystem is partially created but not finalized and not mountable
17	17		root@EPU-102054501-AugustToepfer:~# fsck.ext4 /dev/sda2
18	18		e2fsck 1.42.12 (29-Aug-2014)
19	19
20		-
	20	+	# fix:
21		-
	21	+	(cd / && tar -cf - root \| bzip2 >root_backup.tar.bz2)
22		-
	22	+	umount /root
23		-
	23	+	mkfs.btrfs --label roothome -f /dev/sda2
24		-
	24	+	vi /etc/fstab # switch /root from "ext4" to "btrfs"
25		-
	25	+	mount /root
26		-
	26	+	(cd / && tar -xf root_backup.tar.bz2 )
27		-
	27	+	ls -l /root
28	28