27 Jun
2023
27 Jun
'23
9:50 p.m.
Steve Jenkin wrote in
<5C26BE4B-2E6C-4E02-9536-3EA774FB6B47(a)canb.auug.org.au>:
|> On 27 Jun 2023, at 09:44, Bakul Shah <bakul(a)iitbombay.org> wrote:
|> f space is not an issue, you can use split(1) to divide
|> the input in N pieces and then use a separate loop to copy
|> them to the media. If you want to stream the distribution
I had
act mkdir -p "$target"
act btrfs send $parent "$this" '|' \
zstd -zc -T0 $ZSTD_LEVEL '|' \
'('cd "$target" '&&' \
echo "$this" '>' .stamp '&&' \
split -a 4 -b 2000000000 -d -')'
) || exit $?
for splitting BTRFS snapshots to VFAT filesystems.
You then did
act cat "$ball"/"$mydir"/* '|' zstd -dc '|'
btrfs receive .
to receive them. (Where "act" is
act() {
if [ -n "$DEBUG" ]; then
echo eval "$@"
else
eval "$@"
if [ $? -ne 0 ]; then
echo 'PANIC: '$*
exit 1
fi
fi
}
). I dropped that "ball" support, all my backup media now uses
EXT4 or simply BTRFS directly. (Thing was that Linux cannot drive
some external Seagate USB disks in a way that allows EXT4 or BTRFS
on them, the "final sync" or fails, will all kernels tried, and
some USB hints, too. MacOS X could create HFS?? just like that.)
(That ".stamp" was
if [ -f "$ball"/"$mydir"/.stamp ]; then
snap=$(cat "$ball"/"$mydir"/.stamp)
...
cd snapshots/"$mydir" || exit 11
if [ -d "$snap" ]; then
echo '=== '$mydir': snapshot '$snap' already exists'
exit 0
fi
.).
--steffen
|
|Der Kragenbaer, The moon bear,
|der holt sich munter he cheerfully and one by one
|einen nach dem anderen runter wa.ks himself off
|(By Robert Gernhardt)