Re: Resize a disk image from 32G to 4G or copy u-boot?

2020-03-24 Thread Nate Bargmann
Grep on the 32 GB card for the root UUID only turns up the value in p2/etc/fstab. Nothing turned up in p1 though I can manually look into either of the initrd images with Midnight Commander and find it in the aforementioned dafault_root file. I did see where the 32 GB card has p2 labeled as

Re: Resize a disk image from 32G to 4G or copy u-boot?

2020-03-24 Thread Alan Corey
Try your kernel config string. On this Pi /boot/cmdline.txt has root=PARTUUID=d9b3f436-02 I copied an sd to a hard drive once and it wouldn't boot until I put the partuuid from the hard drive in there. That and the fstab were the only changes I had to make. Should have put rootwait in there

Resize a disk image from 32G to 4G or copy u-boot?

2020-03-24 Thread Nate Bargmann
Hi All. I have an Olimex LIME2 based Freedombox (Debian Buster) and as I am using an external hard drive with it, less than 2 GB of the 32 GB micro-SD card capacity is being used. I have a spare 4 GB card that I would like to use instead, but haven't figured out how to downsize the root

Re: Resize a disk image from 32G to 4G or copy u-boot?

2020-03-24 Thread Alan Corey
Downsizing requires that no files are in the part you trim off. Upsizing can sometimes be done by deleting the partition and recreating letting fdisk use the maximum size. Don't format between or anything and in case you have to type the numbers in you should have a copy of them handy like Device

Re: Resize a disk image from 32G to 4G or copy u-boot?

2020-03-24 Thread Alan Corey
Have you tried partimage? Maybe it only does one partition, I was looking for something that can make images like the ones you download when youj insttall. Just saw this today, haven't tried it yet. Partition Image is a partition imaging utility. It has support for the following file systems:

Re: Resize a disk image from 32G to 4G or copy u-boot?

2020-03-24 Thread Alan Corey
Grep for the UUID? Including grep -r to recurse directories. You'll probably need to do it once per partition. gpartid has some serous bugs when it comes to resizing I think. If you're really careful with your math you can control fdisk at a sector level. Actually I've done it in OpenBSD, not

Re: Resize a disk image from 32G to 4G or copy u-boot?

2020-03-24 Thread Nate Bargmann
* On 2020 24 Mar 15:46 -0500, Alan Corey wrote: > Downsizing requires that no files are in the part you trim off. Ahhh. Makes sense. The mmc has two partitions, p1 an ext2 of 128 MB and p2 a btrfs with the rest of the space. Since I had the files of p2 on the 4 GB card, I went ahead and

Re: Resize a disk image from 32G to 4G or copy u-boot?

2020-03-24 Thread Gene Heskett
On Tuesday 24 March 2020 16:44:42 Alan Corey wrote: > Downsizing requires that no files are in the part you trim off. > Upsizing can sometimes be done by deleting the partition and > recreating letting fdisk use the maximum size. Don't format between > or anything and in case you have to type