Ancestors

Written by squid_slime@lemm.ee on 2024-08-21 at 17:32

What is the most duct-tape thing you've done to Linux?

https://lemm.ee/post/40221370

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Written by cizra@lemm.ee on 2024-08-21 at 18:43

Mounting a Samba share and moving my LVM pvolumes of / onto a losetup’ed file on it, while running the system. Bass ackwards.

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Written by chtk@feddit.nl on 2024-08-21 at 18:51

Good grief. Why?

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Written by cizra@lemm.ee on 2024-08-21 at 20:21

I needed to redo partitions, but didn’t want to reboot.

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Written by chtk@feddit.nl on 2024-08-21 at 21:01

That’s not even a bad idea then.

One of my machines has a boot partition that’s a bit too small, on an otherwise LVM setup.

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Toot

Written by cizra@lemm.ee on 2024-08-21 at 21:16

I’d recommend a Linux installer on a memory stick, instead. It’s bound to have less network lag.

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Descendants

Written by chtk@feddit.nl on 2024-08-21 at 21:38

Nah, it’ll be fine.

I might have a large enough USB SSD laying around some where. I could probably use that instead.

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Written by cizra@lemm.ee on 2024-08-22 at 05:50

Does your FS support online resizing? EXT4 doesn’t, so you’d have to use an installer stick.

Be super careful about partition sizes. I once tried to shrink my FS to an exact size, then shrink the LV to the same size - it ended up corrupting my FS. After that time, I started undersizing the FS, then resizing LV, finally expanding the FS again.

Have backups.

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Written by chtk@feddit.nl on 2024-08-22 at 06:32

Does your FS support online resizing?

Yeah. I mainly use btrfs; it supports online growing and shrinking.

Be super careful about partition sizes. […]

I know. I have done plenty of same device partition resizing. I know the pit falls, and for safety shrink the FS to below what the LV is going to be.

Have backups.

Thanks for the reminder. I’ve been meaning to set up snapshot backups for this machine using rsnapshot as an experiment. I mainly use Dirvish

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Written by cizra@lemm.ee on 2024-08-22 at 06:54

I use rsync with a custom shell script to manage the number of incremental copies. You’ll probably prefer something less janky.

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Written by chtk@feddit.nl on 2024-08-22 at 08:55

That sounds pretty much like what Dirvish and rsnapshot do. Both wrap rsync.

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