Note a file system which is significantly shrunk --- which tends to be
the case with resize2fs -M --- is going to have files fragmented which
will have performance implications. It's not clear to me what you are
trying to optimize for --- I assume you're just wanting to save on
download bandwidth so you want a highly compressed image?
You might want to consider using a raw qemu image, e.g:
e2image -Q /dev/sda1 /tmp/sda1.qcow
bzip /tmp/sda1.qcow # optional
which can then be unpacked via:
bunzip /tmp/sda1.qcow.bz2
e2image -r /dev/sda1.qcow /dev/sda1
You can of course also use qemu-img from the qemu package. e2image -Q
is a bit more efficient though since it will only include blocks which
are in use in the file system, where as qemu-img is not aware of the
underlying file system.
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Touch seeded packages, which is subscribed to e2fsprogs in Ubuntu.
https://bugs.launchpad.net/bugs/1796788
Title:
resize2fs: Illegal indirect block found while trying to resize
Status in e2fsprogs package in Ubuntu:
Confirmed
Bug description:
The new resize2fs(1.43+) failed to resize attached image file, and
e2fsck didn't report any error before the resizing.
Test steps:
1/ e2fsck -fy userdata.img
2/ resize2fs userdata.img 220M
Result:
When using resize2fs from e2fsprogs 1.43+(tested 1.43.4/1.43.5/1.44.4), it
would abort with:
Resizing the filesystem on userdata.img to 225280 (1k) blocks.
resize2fs: Illegal indirect block found while trying to resize userdata.img
Please run 'e2fsck -fy userdata.img' to fix the filesystem
after the aborted resize operation.
More information:
1/ The image is generated on xenial with genext2fs
2/ It works well on xenial with e2fsprogs 1.42.13-1ubuntu1
3/ It works well when resizing with a size less than 220M, for example
"resize2fs userdata.img 219M"
4/ online resize works
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/e2fsprogs/+bug/1796788/+subscriptions
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