[Bug 575542] Re: resize2fs does not respect flex_bg

[Theodore Ts'o]

Yes, this has been fixed quite a while ago.  :-)

Online resize with flex_bg was fixed in 2012 --- call with the v3.10
kernel or so.

Offline resize was fixed around that time (e2fsprogs 1.43), but there
have been some bugs with flex_bg and off-line resizing, so I'd recommend
using at least e2fsprogs 1.44.x if you want to off-line resize file
systems with flex_bg.  And on-line resizing is actually going to be
safer in general --- mainly because it's less capable --- the scary bits
with off-line resizing are things that on-line resize can't do, like
shrink the file system or move the inode table around to make room for
more block group descriptors than were originally reserved at mkfs time.

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https://bugs.launchpad.net/bugs/575542

Title:
  resize2fs does not respect flex_bg

Status in e2fsprogs package in Ubuntu:
  Triaged
Status in linux package in Ubuntu:
  Triaged

Bug description:
  Binary package hint: e2fsprogs

  When running resize2fs to perform an online extend of an ext4
  filesystem, it does not respect the flex_bg feature.  Instead, it lays
  out the added block groups with their normal non flex_bg positions.

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